Operating Manual
EDS3090
Portable insulation fault location system
for energised
and deenergised systems
Software version: D316 V1.0
TGH1420en/12.2011
Dipl.-Ing. W. Bender GmbH & Co. KG
Londorfer Str. 65 • 35305 Grünberg • Germany
Postfach 1161 • 35301 Grünberg • Germany
Tel.: +49 6401 807-0
Fax: +49 6401 807-259
E-mail: info@bender-de.com
Web: http://www.bender-de.com
© Dipl.-Ing. W. Bender GmbH & Co. KG
All rights reserved.
Reprinting only with permission
of the publisher.
Subject to change!
Table of Contents
1. How to use this operating manual effectively ................................................... 7
1.1
How to use this manual ......................................................................................................... 7
1.2
Explanations of symbols and notes ................................................................................... 7
1.3
Chapters at a glance ............................................................................................................... 8
2. Safety instructions .................................................................................................. 9
2.1
Intended use .............................................................................................................................. 9
2.2
Device-specific safety instructions .................................................................................... 9
2.3
General safety instructions ................................................................................................... 9
2.4
Skilled persons ....................................................................................................................... 10
3. System description .............................................................................................. 11
3.1
System components ............................................................................................................ 11
3.1.1 Overview system components ........................................................................................ 11
3.1.2 List of insulation fault location system types .............................................................. 12
3.1.3 Accessories .............................................................................................................................. 13
3.2
Function of the system components ............................................................................. 14
3.2.1 PGH18... insulation fault test device ............................................................................... 14
3.2.2 Insulation fault evaluator EDS190P ................................................................................ 14
3.2.3 Measuring clamps ................................................................................................................. 14
3.2.4 Coupling device AGE185 .................................................................................................... 15
3.3
Operating principle of insulation fault location (IΔs) ............................................... 15
3.3.1 Block diagram EDS system ................................................................................................ 16
3.3.2 Test cycle .................................................................................................................................. 16
3.3.3 Terms ......................................................................................................................................... 17
3.3.4 Currents in the EDS system ............................................................................................... 17
3.4
Operating principle of residual current measurement (IΔn) ................................. 18
4. Points to be considered before use .................................................................. 19
4.1
How does an insulation fault location system work? .............................................. 19
4.2
Requirements for reliable insulation fault location .................................................. 20
4.3
Reduced test current ........................................................................................................... 22
4.4
Characteristic curves on the response sensitivity of EDS190P ............................. 22
4.4.1 Response characteristic curves for main circuits in 3AC systems ........................ 23
TGH1420en/12.2011
3
Table of Contents
4.4.2 Response characteristic curves for main circuits in AC systems ........................... 24
4.4.3 Response characteristic curves for main circuits in DC systems ........................... 24
4.4.4 Response characteristic curves for control circuits in AC systems ...................... 25
4.4.5 Response characteristic curves for control circuits in DC systems ...................... 25
5. Commissioning and connection ....................................................................... 27
5.1
Decoupling the insulation monitoring device ............................................................ 27
5.2
Deenergised systems ........................................................................................................... 27
5.3
Connection to an IT system ............................................................................................... 28
6. Operation ............................................................................................................... 29
6.1
Brief description of insulation fault location (EDS mode) ....................................... 29
6.1.1 Commissioning of the PGH18... for test current supply .......................................... 29
6.1.2 Insulation fault location with EDS190P ......................................................................... 29
6.2
Operating elements of the PGH18... ............................................................................... 30
6.3
Display and operating elements of the EDS190P ...................................................... 31
6.4
Operation of the EDS190P .................................................................................................. 33
6.4.1 Switching the device on and off ...................................................................................... 33
6.4.2 Display illumination provides improved readability ................................................ 33
6.4.3 Switching between the operating modes insulation fault location IΔs
and residual current measurement IΔn ......................................................................... 33
6.4.4 Display elements and their meaning ............................................................................. 34
6.5
Standard displays of the EDS190P ................................................................................... 35
6.5.1 Standard display without enclosing the cable to be measured ........................... 35
6.5.2 Standard display in the EDS mode (IΔs) with the cable enclosed ....................... 35
6.5.3 Standard display in the RCM mode (IΔn) with the cable enclosed ..................... 35
6.6
Alarms in the EDS or RCM mode ...................................................................................... 35
6.7
Indication of device and measuring errors .................................................................. 36
6.8
Factory settings EDS190P (delivery condition) ........................................................... 36
6.9
Menu structure ....................................................................................................................... 37
6.10
Navigation within the menu .............................................................................................. 37
6.11
Menu item: Settings / General .......................................................................................... 38
6.12
Menu item: Settings / IΔs .................................................................................................... 38
6.13
Menu item: Settings / IΔn ................................................................................................... 39
6.14
Menu item: Settings / system ............................................................................................ 39
6.15
Menu item: View harmonics (Harmonics) ..................................................................... 39
6.16
Practical use ............................................................................................................................. 40
6.16.1 Use as a portable insulation fault location system .................................................... 40
6.16.2 Using the EDS190P within a permanently installed EDS system ......................... 42
6.16.3 EDS309... in diode-decoupled DC systems ................................................................... 44
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TGH1420en/12.2011
Table of Contents
6.16.4 Using the EDS190P as a residual current monitor .................................................... 47
6.16.5 Measuring harmonics .......................................................................................................... 48
6.17
Coupling device AGE185 for higher voltages ............................................................. 49
6.18
Power supply of the EDS190P .......................................................................................... 50
6.18.1 Displaying the battery status ............................................................................................ 50
6.18.2 Replacing batteries or accumulators ............................................................................. 50
6.18.3 Power supply unit delivered with the system ............................................................ 50
7. Technical data ....................................................................................................... 51
7.1
Technical data of the EDS309... system ......................................................................... 51
7.2
Technical data PGH18... ...................................................................................................... 51
7.3
Technical data EDS190P ..................................................................................................... 52
7.4
Technical data measuring clamps .................................................................................. 53
7.5
Technical data AGE185 ....................................................................................................... 53
7.6
Dimension diagrams ............................................................................................................ 54
7.7
Standards ................................................................................................................................. 55
7.8
Ordering information ......................................................................................................... 56
7.9
List of components ............................................................................................................... 57
8. Frequently asked questions ............................................................................... 59
INDEX ........................................................................................................................... 61
TGH1420en/12.2011
5
Table of Contents
6
TGH1420en/12.2011
1. How to use this operating manual effectively
1.1 How to use this manual
This operating manual describes how to operate the portable insulation fault location system
EDS309... (with EDS190P, software version V1.0). It is designed for skilled personnel working in electrical engineering and electronics and in particular for those designing, installing and operating electrical systems.
Before using the equipment, please read this operating manual, the supplement entitled “Important
safety instructions for Bender Products" and the instruction leaflets supplied with the individual system components. Please keep this documentation close at hand near to the equipment.
Should you have any questions, please do not hesitate to contact our technical sales team. We are
also happy to provide on-site services. Please contact our Service Department for more information.
Service-Hotline: 0700-BenderHelp (Telefon and Fax)
Carl-Benz-Straße 10 • 35305 Grünberg • Germany
Tel: +49 6401-807-760 • Fax: +49 6401-807-629
E-Mail: info@bender-service.com • www.bender-de.com
Although great care has been taken in the drafting of this operating manual, it may nevertheless
contain error and mistakes. The Bender Group cannot accept any liability for injury to persons or
damage to property resulting from errors or mistakes in this manual.
1.2 Explanations of symbols and notes
The following designations and symbols are used in this documentation for
hazards and warnings:
Information calling attention to hazards are marked with this warning symbol.
Information intended to assist the user to make optimum use of the product are
marked with the Info symbol.
TGH1420en/12.2011
7
How to use this operating manual effectively
1.3 Chapters at a glance
1. How to use this operating manual effectively:
This chapter provides tips and useful information on how to use this manual.
2. Safety instructions
This chapter describes the dangers during installation and when operating the device.
3. System description:
This chapter provides an overview of the system components, a description of their function
and the fundamentals of insulation fault location.
The last chapter describes the function of residual current measurement.
4. Points to be considered before use:
This chapter describes the practical aspects of insulation fault location and provides a number
of characteristic curves for evaluation of the response values to be set.
5. Commissioning and connection:
This chapter describes the connection of the EDS309... to a system to be tested.
6. Operation:
This chapter provides a description of the graphical user interface of the EDS190P. In addition,
you will find a representation of the menu structure and the graphical representation of various standard displays.
You will also find details about the power supply of the EDS190P.
7. Technical data:
In addition to the data in tabular form, you will be informed about standards and the dimensions of the system components.
8. Frequently asked questions:
This chapter will help you to recognise faults quickly which are likely to occur and provides
suggestions for trouble shooting.
9. INDEX:
Use the index to look up keywords quickly.
8
TGH1420en/12.2011
2. Safety instructions
2.1 Intended use
The EDS309... is a portable insulation fault location system designed to locate insulation faults in IT
systems. All versions are also suitable for measuring residual currents in TN and TT systems.
The EDS3096PG is particularly suitable for insulation fault location in de-energised systems.
Please take note of the limits for the application area specified in the technical data. Use
deviating from or beyond the scope of this is considered non-compliant.
System interferences and excessively high system leakage capacitances may influence the accuracy of the measurement negatively.
2.2 Device-specific safety instructions
If the test current of the PGH18...... is too high, sensitive loads (e.g. in control circuits) may be damaged or switching operations may be activated unintentionally. Therefore, it is recommended to select a lower test current (1 resp. 10 mA).
In systems with programmable controllers (PLC), only EDS3091 or EDS3091PG
may be used.
The test voltage of DC 50 V in the voltage source (PGH186) integrated in the insulation fault location system EDS3096PG may cause interferences on sensitive
system components. In case of doubt please consult Bender.
The test current of the PGH185 or PGH186 may trigger RCDs. The test current is
limited to max. 25 mA (resp. 10 mA), nevertheless, 30 mA RCDs may be triggered
between 15 and 30 mA.
Inside the measuring clamp, you should aim for the maximum possible symmetry of the conductors.
Due to an excessively high load current, the measuring clamp can reach a saturation state that may cause an alarm message IΔn >10A.
If electrical interferences occur during operation, the device may trip incorrectly
and may indicate incorrect values on the display.
2.3 General safety instructions
In addition to this data sheet, the documentation of the device includes a sheet entitled "Important
safety instructions for BENDER products“.
TGH1420en/12.2011
9
Safety instructions
2.4 Skilled persons
Only skilled persons may work on Bender products. Skilled means, persons
who are familiar with the assembly, commissioning and operation of the equipment and have undergone appropriate training. Such persons must have read this manual and understood all instructions relating to safety.
10
TGH1420en/12.2011
3. System description
3.1 System components
A detailed overview of the scope of delivery is given on page 57.
3.1.1
Overview system components
The main task of the EDS309... is insulation fault location in IT systems. For this purpose, the individual components of the EDS309... are used in combination.
2
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L1
L2
3(N)AC 0...575V mit/with 500...790V
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0...504V AGE185 400...960V
(-)
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10
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25
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Us
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52
PSA30
PGH186
3
4
5
1
Aluminium case with carrying strap
2
Measuring clamp PSA3020 (main circuits) or PSA3320 (control circuits)
Inside diameter of the measuring clamp 20 mm
3
Insulation fault test device PGH18...
to generate a test current signal for insulation fault location
4
Insulation fault evaluator EDS190P
for the connection of measuring clamps and for the location of insulation faults
5
Measuring clamp PSA3052 (main circuits) or PSA3352 (control circuits)
Inside diameter of the measuring clamp 52 mm
TGH1420en/12.2011
11
System description
3.1.2
List of insulation fault location system types
All device versions listed below are suitable for residual current measurement in TT and TN systems
(earthed systems).
The different system types and the measuring tasks they can be used for are listed below:
Insulation fault location systems for main circuits
Permissible system voltage ranges for main circuits:
Insulation fault location in IT systems up to AC 42...460 Hz, 20...575 V and DC 20...504 V
Insulation fault location with AGE185 up to AC 42...460 Hz 500...790 V, DC 400...960 V:
EDS3090:

Applicable in IT systems where a PGH471 insulation fault test device or an IRDH575 is already
installed.
EDS3090PG:

Supply voltage of the PGH185 insulation fault test device delivered with the EDS system:
AC 50...60 Hz, 230 V

Applicable in IT systems where neither a PGH471 insulation fault test device nor an IRDH575 is
installed.
EDS3090PG-13:

Supply voltage of the PGH185-13 insulation fault test device delivered with the EDS system:
AC 50...60 Hz, 90…132 V

Applicable in IT systems where neither a PGH471 insulation fault test device nor an IRDH575 is
installed.
Permissible system voltage ranges for main circuits:
Insulation fault location in IT systems up to AC 42...460 Hz, 0...575 V and DC 0...504 V
Insulation fault location with AGE185 up to AC 42...460 Hz 500...790 V, DC 400...960 V:
EDS3096PG:

Supply voltage of the PGH186 insulation fault test device delivered with the EDS system:
AC 50...60 Hz, 230 V

Insulation fault location, also in IT systems with all poles disconnected

Applicable in IT systems where neither a PGH471 insulation fault test device nor an IRDH575 is
installed.
EDS3096PG-13:

Supply voltage of the PGH186-13 insulation fault test device delivered with the EDS system:
AC 50...60 Hz, 90…132 V

Insulation fault location, also in IT systems with all poles disconnected

Applicable in IT systems where neither a PGH471 insulation fault test device nor an IRDH575 is
installed.
12
TGH1420en/12.2011
System description
Insulation fault location systems for control circuits
Permissible system voltage for control circuits:
Insulation fault location in IT systems up to AC 42...460 Hz, 20...265 V and DC 20...308 V.
EDS3091:
Applicable in IT systems where a PGH473 insulation fault test device or an IRDH575 is already
installed.

EDS3091PG:

Supply voltage of the PGH183 insulation fault test device delivered with the EDS system:
AC 50...60 Hz, 230 V

Applicable in IT systems where neither a PGH473 insulation fault test device nor an IRDH575 is
installed.
EDS3091PG-13:

Supply voltage of the PGH183-13 insulation fault test device delivered with the EDS system:
AC 50...60 Hz, 90…132 V

Applicable in IT systems where neither a PGH473 insulation fault test device nor an IRDH575 is
installed.
Insulation fault location system for main circuits and control circuits
EDS3092PG:

It consists of the same components as EDS3090PG and EDS3091PG and combines the features
of the two devices.
3.1.3
Accessories
For details about optional accessories also refer to ordering information and the list of components
on page 56 and page 57.
When working with the EDS309... only use those components which are delivered with the system.
In particular, do not use any other measuring clamps! This also applies to additional measuring clamps or measuring current transformers from the Bender
range which are not exclusively designed for use with EDS309..... .
TGH1420en/12.2011
13
System description
3.2 Function of the system components
3.2.1
PGH18... insulation fault test device
The PGH18... generates a defined test current signal. The test current generated in this manner depends on the size of the present insulation fault and the system voltage.

Depending on the switch position of the PGH185 or PGH186 the test current is limited to a maximum of 25 mA or 10 mA respectively,

the PGH183 limits the test current to a maximum of 2.5 mA or 1 mA respectively.

In deenergised IT systems or in IT systems with a system voltage of < 50 V, the PGH186 drives a
test current through an integrated voltage source (DC 50 V). In IT systems with a system voltage
of > 50 V, the currently available in the system is used to drive the test current.
3.2.2
Insulation fault evaluator EDS190P
The insulation fault evaluator EDS190P provides the following measuring functions:


Insulation fault location IΔS (EDS mode) for use in IT AC systems or DC systems:
–
within the portable EDS309... insulation fault location system or
–
within a permanently installed EDS46.../49.... insulation fault location system.
Residual current measurement IΔn (RCM mode) for use in TN or TT AC systems. The response
value range is listed in the Tabelle 3.1 auf Seite 14.
Response value
The response value is determined by the sensitivity of the EDS190P evaluator. In DC, AC and 3AC IT
systems, this is an arithmetic average value that can be set according to Tabelle 3.1 auf Seite 14. System interferences and excessively high system leakage capacitances may have a negative influence
on the accuracy.
3.2.3
Measuring clamps
Measuring clamps detect the test current signal resp. the residual current. The measuring lead has a
length of approximately 2 m. The connection to the EDS190P is made via a BNC connector.
The most important data of the different measuring clamps are listed in the table below.
Measuring
clamps
Measuring range
IT system
Response value
TN/TT system
Measuring
clamps
Measuring range
Response value
Main circuit
(EDS3090..., 3096...)
Control circuit
(EDS3091...)
PSA3020, PSA3052, PSA3165
PSA3320, PSA3352
2...50 mA
0....5 mA
2...10 mA, ±30 % / ±2 mA
0.2...1 mA, ±30 % / ±0.1 mA
PSA3020, PSA3052, PSA3165
PSA3320, PSA3352
5 mA...10 A
10 mA...10 A
2 mA...2 A
5 mA...1 A
Tab. 3.1: Measuring clamps and response values for EDS190P
If measuring current transformers are to be used instead of measuring clamps, you will need the
adapter delivered with the system: BNC/4 mm plug. See table on page 57.
14
TGH1420en/12.2011
System description
3.2.4
Coupling device AGE185
The coupling device AGE185 extends the nominal voltage range of the insulation fault location system EDS309... . It allows connection to nominal voltage ranges up to
AC 790 V resp. DC 960 V.
3.3 Operating principle of insulation fault location (IΔs)
When a first insulation fault occurs in IT systems, a residual current flows which is essentially determined by the system leakage capacitances. The basic concept in fault location is therefore to close
the fault current circuit for a short period over a defined resistance. As a result of this principle, the
system voltage itself drives a test current containing a signal that can be evaluated.
The test current is generated periodically by the PGH18... insulation fault test device (which is a component of the EDS309...PG system).
Optionally, the test current can also be generated by an IRDH575 or PGH47... insulation fault test device.
The test current is limited in amplitude and time. As this happens, the system conductors are connected alternately to earth via a defined resistance. The test current generated in this manner depends on the value of the present insulation fault and the system voltage.
The test current of the EDS3090 is limited to a maximum of 25 mA, and when Imax = 10mA is set, it is
limited to 10 mA. For planning purposes, it should be noted that no system components are present
in which this test current can bring about a damaging reaction, even in unfavourable cases.
The test current pulse flows from the insulation fault test device via the live parts, taking the shortest
path to the location of the insulation fault. From there, it flows via the insulation fault and the earth
conductor (PE) back to the insulation fault test device. This test current pulse is then detected by the
measuring clamps or measuring current transformers located in the insulation fault path, and is signalled by the connected insulation fault evaluator EDS190P.
You must ensure that all live conductors are routed through the measuring
clamp. Do not route any PE conductors or shields of shielded conductors through
the measuring clamp! Normal commercial measuring clamps are not suitable
for the EDS309... and must not be used.
Only if these notes are observed will you obtain a true measurement result.
Additional information is available in our "Transformer installation" technical
information.
TGH1420en/12.2011
15
System description
3.3.1
Block diagram EDS system
Un
IT-System
L1(L+)
L2(L-)
PSA...
3
2
1
EDS190P
PGH...
RF
PE
3.3.2
EDS190P
Insulation fault evaluator
PGH...
Insulation fault test device
Un
System voltage IT system
PSA...
Measuring clamp
RF
Insulation fault
PE
Protective earth conductor
Test cycle
The duration of the test current pulse cycle is 6 seconds. The PGH... alternately sends positive and
negative test current pulses. The test cycle of the PGH... is shown in different switch positions (1, 2,
3) in the block diagram below (also see block diagram of the EDS system above).
Position
PGH...
1
2 sec
3
4 sec
2
2 sec
3
1
4 sec
EDS Start
16
TGH1420en/12.2011
System description
3.3.3
Terms
IΔs
IΔn
Measured value of the selective fault current of the evaluator unit (EDS mode).
Residual current created by an insulation fault (RCM mode).
3.3.4
Currents in the EDS system
In addition to the block diagram on page 16, the path of the residual currents and the test current is
illustrated in the diagram below:
Un
PSA...
IT-System
IDn, IT
3
1
PGH...
EDS190P
2
CE-V
RF-V
CE-N
RF-N
PE
.............
Test current loop IT
.. .. .. ..
Residual currents IΔn (example)
CE-V
Upstream capacitances, system leakage capacitances upstream the measuring current transformer
CE-N
Downstream capacitances, system leakage capacitances downstream the
measuring current transformer
RF-V
Insulation fault upstream the measuring current transformer
RF-N
Insulation fault downstream the measuring current transformer
The following residual currents flow through the measuring current transformer of the EDS... :

The test current IΤ caused by the insulation fault RF-N

Residual currents IΔn flowing through the system leakage capacitances CE-V and
CE-N resp. caused by RF-V and RF-N,

Transient leakage currents caused by switching and control activities in the system,

Low-frequency leakage currents caused by the use of converters
TGH1420en/12.2011
17
System description
3.4 Operating principle of residual current measurement (IΔn)
In the RCM mode, the EDS309... operates according to the principle of residual current measurement. In this case, only the evaluator unit EDS190P with the measuring clamp is used, the PGH18...
insulation fault test device is not required.
In accordance with Kirchhoff's Law, the sum of the inflowing currents at every intersection in a system is equal to the sum of the outflowing currents.
I from
Ito
P
ME
Da SS
Du ten ZA
Ar rch bla NG
t.- me tt
Nr
/ E
. / ss Da / CL
Ar er tas AM
t.- / Di he
no am et P
ON
.:
B ete : TG PR
98 r H1
OB
0 : 52
3x
xx
x mm x E
S
A
30
52
ID=0
PE
Fig. 3.1: The two currents Ito and Ifrom are equal in quantity but have different directions,
so that the resultant sum is zero. The EDS190P recognises this, no message is generated.
Ito
I from
P
ME
Da SS
Du ten ZA
Ar rch bla NG
t.- me tt
Nr
/ E
. / ss Da / CL
Ar er tas AM
t.- / Di he
no am et P
ON
.:
B ete : TG PR
98 r H1
OB
0 : 52
3x
xx
x mm x E
S
A
30
52
ID =0
RF
PE
Fig. 3.2: A portion of the current is flowing away via an insulation fault RF. The sum of the currents is
no longer zero. If the residual current is equal to or greater than the response value,
the EDS190P will generate a message.
In the RCM mode, residual currents can be measured in one and three-phase TT
or TN systems. If the system leakage capacitance upstream of the measuring
clamp is sufficiently high, the EDS190P can also be used for measurements in one
and three-phase IT systems. Its suitability for this purpose must be checked in
each individual case.
18
TGH1420en/12.2011
4. Points to be considered before use
4.1 How does an insulation fault location system work?
An insulation fault location system consists of a PGH18...insulation fault test device and an EDS190P
insulation fault evaluator in combination with a PSA3.... measuring clamp.
Functional sequence

Start insulation fault location by activating the PGH18... insulation fault test device

The PGH18... insulation fault test device for a short period connects the live conductors to earth
via an electronic current limiting device.

A test current IT which is dependent on the system voltage and on the value of the insulation
fault flows and closes the fault current circuit. The test current is limited to a maximum value of
25 mA resp. 10 mA (PGH185/186) or 2.5 mA resp. 1 mA (PGH183).

The test current pulse flows from the insulation fault test device via the live conductors, the
insulation fault RF and the earth conductor (PE conductor) back to the insulation fault test
device.

This current pulse can be detected by enclosing the outgoing conductors of the distribution
point, located in the current circuit, with the measuring clamp and can be evaluated with the
EDS190P insulation fault evaluator.

By measuring along the cable with the measuring clamp, the point of the fault can be located
precisely.
PSA...
PGH18...
EDS190P
Fig. 4.1: Function of the EDS system
TGH1420en/12.2011
19
Points to be considered before use
4.2 Requirements for reliable insulation fault location
The task of the insulation fault evaluator is to detect insulation faults downstream of the measuring
clamp RF-N. It is designed to recognise reliably the test current caused by the insulation fault for this
purpose.
Requirements:

The insulation fault must be present for at least 30 seconds.

The test current range:
– for main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG is: It = 2...50 mA
– for control circuits with EDS3091, EDS3091PG, EDS3091PG-13 is: It = 0.2...5 mA

The upstream capacitances CE-V must be at least as large as the downstream capacitances CE-N.

The total system leakage capacitance must not exceed the following values:
– for main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG: up to 30.000 μFV
(product of the system leakage capacitance and nominal system voltage)
– for control circuits with EDS3091, EDS3091PG, EDS3091PG-13: up to 1.000 μFV (product of
the system leakage capacitance and nominal system voltage)

The sum of the test current and residual current flowing through the measuring clamp and the
measuring current transformer must not exceed the following values:
– for main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG-13: 10 A
– for control circuits with EDS3091, EDS3091PG, EDS3091PG-13: 1 A

There must not be any connections to other sub-distributions downstream a measuring clamp
or an installed measuring current transformer, see the illustration below.
Fig. 4.2: Connections between sub-distributions lead to measuring errors

Not only does the value of the residual current influence the reliable detection of the test current but also the respective frequency of the residual current. Residual currents deviating from
the system frequency may be caused by the use of frequency converters, for example. The
behaviour of the EDS309... is described in the fault curve illustrated below:
– When the measured residual current values exceed a value of 10 A in main circuits, the
EDS190P outputs the alarm message „IΔn>10A“.
This applies to nominal system frequencies of 50/60/400 Hz
for EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG and EDS3096PG-13.
20
TGH1420en/12.2011
Points to be considered before use
– When the measured residual current exceeds a value of 1 A in control circuits, the EDS190P
outputs the alarm message IΔn>1A“.
This applies to nominal system frequencies of 50/60/400 Hz
forEDS3091, EDS3091PG and EDS3091PG-13.
– When residual currents of nominal system frequencies below 50 Hz occur, the message
"Fault" will be generated.
Example:
When a residual current of 2 A with a frequency of 20 Hz occurs (red dot in the diagram), the
insulation fault location system is outside the permissible measuring range and the message "Fault" appears on the display of the EDS190P.
Fig. 4.3: A residual current value of 2 A is outside of the permissible frequency range (red dot)
Sub-distributions downstream of the measuring clamp must not be galvanically
connected with each other, because such connections create disturbing residual
currents.
As a result, the message "Fault" or "IΔn>10A“ may be output, for example.
Symmetrical insulation faults downstream of the measuring current transformer may not be recognised under certain circumstances. Low-frequency residual
currents (caused by converters, for example) may have the effect that insulation
faults cannot be found when their frequency is equal or nearly equal the test cycle frequency of the PGH186.
Cables leading to the same load in parallel are to be passed together through the
measuring clamp during the measurement.
TGH1420en/12.2011
21
Points to be considered before use
4.3 Reduced test current
Especially in DC control voltage systems in the power station and energy supply utility sector, relays
or SPCs might be installed which switch already in case of relatively low currents. In such a case, the
switch Imax on the PGH18... must be moved to 10/1 mA position. The test current limiting values
10 mA and 25 mA indicated on the switch only applies to DC systems.
Prior to measurements with the EDS3090.. with reduced test current (switch position 10/1 mA), it is
also necessary to check whether any sensitive system components can be caused to operate unintentionally.
4.4 Characteristic curves on the response sensitivity of EDS190P
The type of supply system, system voltage, system frequency, leakage capacitance and test current
have an effect on the response sensitivity of the EDS system. The value of the test current can be set
at the PGH18... insulation fault test device. Resulting from the type of supply system, the real test current in AC systems is lower than the setting. In comparison to DC systems, the factor is 0.5 in AC systems respectively 0.67 in 3AC systems. For use in AC and 3AC systems, set the response value at the
EDS190P as follows:
Application
Insulation fault location system
Setting EDS190P
Maximum test current Menu
2.5: IΔs max
Setting PGH18...
Test current IT
Response range EDS190P
Menu 3.2
Setting PGH18...
Reduced test current IT
Response range EDS190P
Reduced test current
Menu 3.2
Main circuit
Control circuit
EDS3090
EDS3090PG
EDS3090PG-13
EDS3096PG
EDS3091
EDS3091PG
EDS3091PG-13
max. 50 mA
max. 5 mA
25 mA
(PGH185/186)
2.5 mA
(PGH183)
2...10 mA
0.2...1 mA
10 mA
(PGH185/186)
1 mA
(PGH183)
2...5 mA
0.2...0.5 mA
Tab. 4.1: Settings on the insulation fault location system
For details on the setting of the response value, refer to “Setting menu 3: (Settings IΔs) on page 37.
The response values are shown as characteristic curves. The maximum deviation can be +/- 30 %, including the tolerances of the measuring clamps. The characteristic curves apply to the respective
nominal voltage indicated in the diagram.
If the nominal voltage of the system being monitored is different from the nominal voltage shown
in the diagram, the response values may change proportionally. Nominal voltages changing dynamically during operation or in case of superimposed alternating currents that deviate from the system
frequency (e.g. caused by frequency converters) or superimposed direct currents may result in response values that are outside the range displayed in the diagram.
The following curves makes light work of determining a correct and practical response value for this
EDS190P. When the insulation monitoring device shows an alarm message in a system being monitored, manual insulation fault location can be started. Proceed as follows:
1. Select the characteristics (3 AC, AC, DC) that are appropriate for your type of distribution system.
22
TGH1420en/12.2011
Points to be considered before use
2. From these, select the diagram that best matches the desired system voltage.
3. Calculate the anticipated leakage capacitance of the system being monitored. Insulation monitoring devices of the IRDH... series can display the value of the leakage capacitance (press the
INFO key). Apply this value to the diagram in the form of a vertical line.
If it is not possible to query the leakage capacitance, the respective highest value is to be taken
from the characteristic curve.
4. The curves show the response sensitivity values 2 mA, 5 mA and 10 mA set for the EDS190P for
main circuits and 0.2 mA, 0.5 mA and 1 mA for control circuits. Values above the respective
curve cannot be detected. Values and characteristics that fall between the top and bottom
characteristics can be roughly determined on the basis of those actually provided.
5. Set the respective response value on the EDS190P.
6. The curves for DC 24 V and AC 42 V do not apply to the EDS3096 because the insulation fault
test device works with its own test voltage of DC 50 V. For this reason, the curves for DC 60 V
and AC 110 V are valid for these nominal voltages.
Response characteristic curves for main circuits in 3AC systems
3AC 230 V
80
2mA
5mA
10mA
70
60
50
Re [kOhm]
Re [kOhm]
4.4.1
2mA
5mA
10mA
120
100
80
40
60
30
40
20
20
10
0
0
0
0
50
100
40
60
80
2mA
5mA
10mA
100
Ce [µF]
3AC 500 V
200
180
160
140
120
100
80
60
40
20
0
20
150
Ce [µF]
Re [kOhm]
Re [kOhm]
3AC 400 V
140
3AC 690 V
250
2mA
5mA
10mA
200
150
100
50
0
0
10
20
30
40
50
60
Ce [µF]
TGH1420en/12.2011
0
10
20
30
40
50
Ce [µF]
23
Points to be considered before use
4.4.2
Response characteristic curves for main circuits in AC systems
Re [kOhm]
Re [kOhm]
AC 42 V
8
2mA
5mA
10mA
6
AC 110 V
25
2mA
5mA
10mA
20
15
4
10
2
5
0
0
50
100
150
200
250
0
300
0
50
100
150
200
250
Ce [µF]
300
Ce [µF]
2mA
5mA
10mA
60
20
0
50
100
150
Ce [µF]
0
20
40
60
80
100
Ce [µF]
Response characteristic curves for main circuits in DC systems
DC 24 V
10
9
8
7
6
5
4
3
2
1
0
Re [kOhm]
Re [kOhm]
2mA
5mA
10mA
80
40
4.4.3
2mA
5mA
10mA
DC 60 V
30
2mA
5mA
10mA
25
20
15
10
5
0
100
200
300
400
0
500
Ce [µF]
0
2mA
5mA
10mA
100
90
80
70
60
50
40
30
20
10
0
100
200
300
Ce [µF]
DC 110 V
60
50
40
30
20
10
0
0
50
100
150
200
250
300
Ce [µF]
24
100
Re [kOhm]
Re [kOhm]
50
45
40
35
30
25
20
15
10
5
0
0
Re [kOhm]
Re [kOhm]
AC 400 V
AC 230 V
DC 230 V
2mA
5mA
10mA
0
50
100
150
Ce [µF]
TGH1420en/12.2011
Points to be considered before use
Response characteristic curves for control circuits in AC systems
AC 42 V
80
Re [kOhm]
Re [kOhm]
4.4.4
0,2mA
0,5mA
1,0mA
60
0,2mA
0,5mA
1,0mA
150
40
100
20
50
0
AC 110 V
200
0
0
5
10
15
20
25
Ce [µF]
0
2
4
6
8
10
Ce [µF]
Re [kOhm]
AC 230 V
600
0,2mA
0,5mA
1,0mA
500
400
300
200
100
0
0
1
2
3
4
5
6
Ce [µF]
4.4.5
Response characteristic curves for control circuits in DC systems
DC 60 V
250
0,2mA
0,5mA
1,0mA
200
150
100
50
0
0
Re [kOhm]
Re [kOhm]
0,2mA
0,5mA
1mA
10
20
30
40
50
60
Ce [µF]
0
5
10
20
DC 230 V
DC 110 V
500
15
Ce [µF]
0,2mA
0,5mA
1,0mA
400
300
Re [kOhm]
Re [kOhm]
DC 24 V
100
90
80
70
60
50
40
30
20
10
0
800
0,2mA
0,5mA
1,0mA
600
400
200
200
100
0
0
0
2
TGH1420en/12.2011
4
6
8
10
Ce [µF]
0
1
2
3
4
5
6
Ce [µF]
25
Points to be considered before use
26
TGH1420en/12.2011
5. Commissioning and connection
Prior to commissioning make sure that the supply voltage of the PGH18... and of
the power supply unit (as appropriate) corresponds to the voltage of the supplying system. When the devices are operated with wrong supply voltage, the devices may be damaged.
Prior to commissioning, please check that all system components are connected
to each other.
5.1 Decoupling the insulation monitoring device
While insulation fault location is being undertaken with the EDS309..., an existing insulation monitoring device must be disconnected from the system for the duration of the fault location, if its internal resistance Ri is < 120 kΩ. This must be done by effecting an all-pole interruption of the system
coupling, it is not sufficient to switch off the supply voltage to the insulation monitoring device.
When a device is used with an Ri of ≥ 120 kΩ, the influence is negligible, and in this case there is no
need to disconnect. However, take into consideration that the PGH influences the measurements of
the insulation monitoring device.
5.2 Deenergised systems
For insulation fault location in deenergised systems with EDS3096PG, the integrated voltage source
(G) of the PGH186 provides a test voltage of DC 50 V.
The test voltage DC 50 V supplied by the PGH186 is available at the socket L1(+). Make sure that this
socket is connected to the system to be monitored. Only in this way, the integrated voltage source
of PGH186 will be available.
Please note that all live conductors of the system to be searched must be connected to each other via loads or the deenergised power supply.
US = 0 V
IT-System
L1(L+)
L2(L-)
PSA...
+
L1
G
-
EDS190P
RF
3
PE
TGH1420en/12.2011
1
2
PGH186
27
Commissioning and connection
5.3 Connection to an IT system
Connect the EDS309... as described below:
3 AC - System
3/N AC - System U
n
PE
L1 L2 L3
AC - System
L1
L2
L3
N
PE
L1
Un
L2
PE
PE
L1
L2
DC - System
L+
Un
LL1 L2
If the terminals L1, L2, L3 (resp. L1, L2) of the device are connected to a live system
under operation, the terminal must not be disconnected from the protective
conductor (PE).
28
TGH1420en/12.2011
6. Operation
6.1 Brief description of insulation fault location (EDS mode)
6.1.1
Commissioning of the PGH18... for test current supply
1. First, connect the PGH18... to the PE of the system to be checked, see page 28
2. Then connect the PGH18... to active conductors
3. Connect the device to US and switch it on
If the test current IT is to be generated by an IRDH575, its menu item EDS-Setup has to be set to
EDS=On.
6.1.2
Insulation fault location with EDS190P
1. Connect the measuring clamp to the EDS190P
2. Switch the device on with the On/off button
3. A self test is carried out, wait until the message OK appears
4. Check whether the right measuring clamp has been set on the EDS190P
5. Enclose the PE conductor between PGH18... (IRDH575) and/or the PE bar with the measuring
clamp in order to prove the test current IT
6. Enclose the functionally related active conductors of the respective sub-distributions with the
measuring clamp.
Warning! Do not enclose the PE!
7. Read and evaluate the measured value.
If the set response value has been exceeded, the message alarm appears on the display
with the alarm LED flashing.
TGH1420en/12.2011
29
Operation
6.2 Operating elements of the PGH18...
1
1
Im
ax
2
10
ON
(-)
L2
L1
(+
)
3(N)AC 0...575V mit/with 500...790V
DC
0...504V AGE185 400...960V
L3
10
6
0m
M A
mA
25
7
mA
Us
ON
8
PGH186
3
5
30
4
1
ON/OFF switch, activates the test current
2
Selector switch for the maximum test current 25 / 10 mA or 2.5 / 1 mA
3
Not visible: Magnetic adhesive strip at the back of the enclosure for fixing to metal parts
(e.g. switchboard cabinet)
4
3 sockets for system coupling
5
Socket for PE connection
6
LED indicators:
Power ON LED
Indication of the positive test cycle of the test current
Indication of the negative test cycle of the test current
7
Microfuse 100 mA
8
Panel plug for supply voltage
TGH1420en/12.2011
Operation
6.3 Display and operating elements of the EDS190P
1
2
3
4
5
6
12
11
7
8
10
9
1
Connection for external power supply unit DC 6 V
2
BNC connection for the measuring clamp
3
LC display, illuminated
3 lines a 16 characters
4
Alarm LED, lights when the response value is exceeded
5
Button for the selection of the operating mode:
IΔS = Insulation fault location in IT systems (EDS mode)
IΔn = Residual current measurement in TN-S systems (RCM mode)
IDs
IDn
6
Button to select the measuring current transformer
for ITmax = 50 mA:
for ITmax = 5 mA:
P20
= PSA3020 = PSA3320
P52
= PSA3052 = PSA3352
P165 = PSA3165 --------------W/WR = W.... / WR.... = W...-8000
WS
= WS....
= W...-8000
7
INFO key:
- Device type
- Software version
- Current response values IΔS and IΔn
- Setup status
ESC key:
Exits the menu function without changing parameters
ESC
TGH1420en/12.2011
INFO
31
Operation
8
MENU
9
On-Off button
10
32
MENU key:
To start the Menu mode
Enter key:
To confirm changed parameter values or the selected menu items
Illumination button: On /Off switching of the display illumination
11
RESET
RESET button: To clear the fault memory
DOWN key: To move down in the menu, to decrease the parameter value
12
HOLD
HOLD button: To save the measured value
UP key: To move up in the menu, to increase the parameter value
TGH1420en/12.2011
Operation
6.4 Operation of the EDS190P
6.4.1
Switching the device on and off
1. Prior to commissioning, connect a measuring clamp (e.g. PSA3052) to the EDS190P!
2. Switch the device on by means of the On/Off button.
Once the device is switched on, the self test is started.
When the self test runs correctly, the message "Test OK“ appears on the display.
The device is factory set to the EDS mode.
Press the On/Off button for approximately 2 seconds to switch the device off.
1. Display indication
EDS190P
when starting
BENDER GmbH&CoKG
D-35305 Grünberg
for approx. 3 s
2. Display indication
when starting
for approx. 10 s
3. Display indication
when starting
for approx. 3 s
EDS190P
Self-test
>> >> >> >>
EDS190P
Self-test
TEST OK
Fig. 6.1: Starting sequence of the EDS190P
6.4.2
Display illumination provides improved readability
Press the illumination button on the bottom left in order to improve the readability of texts and symbols.
By pressing the button again the illumination can be switched off.
6.4.3
Switching between the operating modes insulation fault location IΔS and residual current measurement IΔn
Here, the measuring functions can be selected. IΔn for residual current measurement preferably for
TN-TT systems. IΔs for insulation fault location in IT systems.
Avoid changing the operating mode during insulation fault location.
TGH1420en/12.2011
33
Operation
6.4.4
Display elements and their meaning
Insulation fault location is carried out in the EDS mode, as illustrated in the figure below.
12
1
2
11
3
10
9
8
7
6
5
4
1
Progress bar to show the measurement progress in the EDS mode
2
Indication of the test current pulse:
= positive impulse,
idle time,
= negative impulse
3
Type of distribution system: AC, DC
4
Hold function activated; Measured value indication "frozen“
5
Charge status of the accumulators
6
Alarm output activated via LED
7
Loudspeaker symbol visible:
An existing alarm will also be output acoustically.
8
Fault memory M is activated
9
Selected measuring current transformer
for ITmax = 5 mA:
for ITmax = 50 mA:
P20
= PSA3020
= PSA3320
P52
= PSA3052
= PSA3352
P165
= PSA3165
--------------W/WR
= W.... / WR....
= W...-8000
WS
= WS....
= W...-8000
10
Selection of the measuring sensitivity
= Control circuit = ITmax = 5 mA
= Main circuit = ITmax = 50 mA
34
11
IΔn = Indication of the currently flowing residual current
12
IΔS = Indication of the currently flowing test current
TGH1420en/12.2011
Operation
6.5 Standard displays of the EDS190P
6.5.1
Standard display without enclosing the cable to be measured
The device is in the EDS mode (IΔS ).
IΔS will not be indicated, because no conductor is enclosed with the measuring clamp.
>> >> >>
I s = 0mA
I n < 100mA
P52
M
H
AC
Standard display in the EDS mode (IΔS) with the cable enclosed
The display shows a measured fault current IΔS of 10 mA. A new measurement is being carried out.
This is indicated by the progress bar represented as an angle.
6.5.2
I s = 10mA >> >> >>
I n < 100mA
P52
M
H
AC
Please note that only 50% of the value of the test current IT created by the PGH18... in AC systems is
indicated by the EDS190P. One-way rectifiers used in the PGH18... decreases the indicated value in
AC systems to 50 %, in 3AC systems to 67 %.
Standard display in the RCM mode (IΔn) with the cable enclosed
The display shows a measured residual current IΔn of 160 mA.
The set residual current response value is 1000 mA.
6.5.3
I n = 160mA
Resp. = 1000mA
P52
M
H
AC
The following display shows a standard indication with menu item
"4.Harmonics on“ activated. This setting is only possible for systems with a frequency of 50 Hz and
60 Hz. The display shows a measured current of 4 mA as well as harmonic distortion of 64 % for the
first harmonics.
I n = 6.0mA
H1=4mA
P52
M
THD=64%
H
50Hz
6.6 Alarms in the EDS or RCM mode
When one of the set response values IΔs or IΔn are exceeded, the message alarm appears on the display.
I s = 10mA Alarm
Next Measurement
P52
M
H
AC
I n = 160mA Alarm
Resp. = 100mA
P52
TGH1420en/12.2011
M
H
Alarm during insulation fault location
Alarm during an RCM measurement
AC
35
Operation
6.7 Indication of device and measuring errors
Fault messages possible to occur are explained in the table below.
No CT connected
P52
M
H
AC
Short Circuit CT
P52
M
H
AC
No measuring clamp or no measuring current
transformer at the measuring input or wrong measuring current transformer connected
Actions:
Connect the appropriate measuring clamp or
measuring current transformer
Short circuit in the measuring clamp or measuring
current transformer or wrong transformer type
connected.
Actions:
Connect intact and appropriate measuring clamp
A fault occurred during insulation fault location
(EDS mode).
Possible causes:
The measuring clamp is not held steady.
Fault
I s = 0mA
I n < 100mA
P52
M
H
AC
A residual current is flowing through the measuring clamp which disturbs the measurement.
A magnetic field exists in the vicinity of the measuring clamp which disturbs the EDS measurement.
6.8 Factory settings EDS190P (delivery condition)
Most of the parameters are set in the menu. If this is not the case, the setting is market with (button).
Button operating mode:
Button transformer selected:
Button illumination:
Memory:
Alarm LED:
Buzzer:
Test current ITmax:
Response value (for IΔs):
Type of distribution system (for IΔs):
System with converter (for IΔs):
Response value (for IΔn):
System frequency (for IΔn):
Measurement of the harmonics (for IΔn):
Language in the display:
Time:
36
IΔs (EDS mode = insulation fault location)
Measuring clamp PSA3052 (EDS3090 and 3096)
Measuring clamp PSA3352 ( EDS3091)
off
off
on
on
50 mA (EDS3090 and 3096)
5 mA (EDS3091)
5 mA (EDS3090 and 3096)
500 μA (EDS3091)
AC
no
100 mA
50 Hz
off
English
CET
TGH1420en/12.2011
Operation
6.9 Menu structure
A schematic sketch of the menu structure is shown below.
Level 1
Level 2
Level 3
1. Exit
2. Settings
3. View harmonics
4. Service
1. Exit
2. General
1. Exit
2. Memory: on/off
3. Buzzer: on/off
4. AlarmLED: on/off
5. ITmax: 5mA / 50mA
3. IΔs
1. Exit
2. Resp.: 2...10mA / 200...1000μA
3. System type: AC/DC
4.Inverter: yes / no
4. IΔn
1. Exit
2. Resp: 10...10000mA
3. Freq: 50Hz / 60Hz / up to 2kHz
4. Harmonics: on/off
5. System
1. Exit
2. Language: German / English / French
3.Clock
1. Exit
2. H1= 0 mA
3. H2= 0 mA
.....
9. H8= 0 mA
10. H9= 0 mA
This menu item exclusively serves the purpose of
displaying the harmonics from H1 to H9.
If you want to view the occurring harmonics in
the standard display outside the menu, you have
to activate the menu item "4. Harmonics:
For
service purposes
only
6.10 Navigation within the menu
TGH1420en/12.2011
- Starting the menu mode with MENU
- Selection of the menu item
or confirming a a value with Enter
MENU
- Navigating up or down in the menu
- increasing or decreasing values
HOLD
ESC:
- To exit the selected menu item
- To exit the modified setting without
saving
INFO
RESET
ESC
37
Operation
All menu descriptions below are based on the factory settings. These settings are given in brackets
after the menu items of level 3.
6.11 Menu item: Settings / General
Alarms are always signalled on the display. In delivery condition, alarms are also signalled by an
alarm LED and a buzzer.
You can use these menu items to set whether:

alarms are to be saved

alarms are not to be signalled acoustically

alarms are not to be signalled by an alarm LED

the measuring sensitivity of the EDS190P is to be adapted to the test current of a control or
main circuit.
A maximum test current IT of 5 mA is to be used for control circuits, and maximum test current
of 50 mA for main circuits.
Level 1
Level 2
2. Settings
1. Exit
2. General
Level 3
1. Exit
2. Memory: on / off (off )
3. Buzzer: on / off (on)
4. AlarmLED: on / off (on)
5. ITmax: 5mA / 50mA (50mA), (EDS3090/3096)
(5mA), (EDS3091)
6.12 Menu item: Settings / IΔs
Use this menu item to set all relevant parameters for insulation fault location:

the IΔS response value for control circuits in the range of 200...1000 μA.
This value range is specified by the value ITmax = 5 mA.
Or the IΔS response value for main circuits in the range of 2...10 mA.
This value range is specified by the value ITmax = 50 mA.

Adaption to the system to be monitored: AC or DC.

Select yes, if a converter is operated in the system to be monitored.
Level 1
2. Settings
Level 2
1. Exit
3. IΔs
38
Level 3
1. Exit
2. Response value: 2...10mA / 200...1000μA
3. Supply system: AC/DC
4. Inverter: yes / no
TGH1420en/12.2011
Operation
6.13 Menu item: Settings / IΔn
Use this menu item to set all relevant parameters for residual current measurement:

Set the IΔn response value between 10 mA and 10 A.

Set the frequency of the system being monitored here.

If you want to view the currents of the occurring harmonics on the standard display, activate
the menu item "4. Harmonics“. When the Harmonics menu has been activated, please note that
only system frequencies of 50 Hz and 60 Hz can be selected.
Level 1
Level 2
Level 3
1. Exit
2. Settings
1. Exit
4. IΔn
1. Exit
2. Resp.: 10...10000mA
3. Freq.: 50Hz / 60Hz / up to 2kHz
4. Harmonics: on/off
6.14 Menu item: Settings / system
Use this menu item to select the appropriate display language and set the correct date and time. For
setting the date, different formats can be selected.
Level 1
Level 2
Level 3
1. Exit
2. Settings
1. Exit
5. System
1. Exit
2. Language: German / English / French
3.Clock
6.15 Menu item: View harmonics (Harmonics)
This menu item exclusively serves the purpose of displaying the harmonics from H1 to H9.
Level 1
Level 2
Level 3
1. Exit
2. H1= 0 mA
3. H2= 0 mA
.....
9. H8= 0 mA
10. H9= 0 mA
This menu item exclusively serves the purpose of
displaying the harmonics from H1 to H9.
If you want to view the occurring harmonics in
the standard display outside the menu, you have
to activate the menu item "4. Harmonics: on/off“.
1. Exit
3. View Harmonics
TGH1420en/12.2011
39
Operation
6.16 Practical use
6.16.1 Use as a portable insulation fault location system
The primary application of the EDS309... is as a portable insulation fault location system in IT systems.
After all the information of the chapter “Points to be considered before use” auf Seite 19 has been
considered, the actual fault location operation may be started. Proceed as follows:
1. Check that the nominal system voltage is within the permissible limits.
2. Connect up the PGH18... near the supply input. When you do this, you must comply with the
general guidelines for live work!
– Before making a connection to the system to be checked, connect the green-yellow conductor over the PE socket of the PGH18... with the PE of the system.
– Only then, connect the PGH18... to the system to be checked using the connecting cable
supplied with the device
Three-phase system
Connect the sockets L1, L2 and L3.
Single-phase system AC or DC
Connect the sockets
L1 and L2.
3. Connect the PGH18... to a suitable supply voltage (see nameplate) using the power supply
cable supplied with the device.
4. If the insulation monitoring device which is present in the IT system has an internal resistance
of < 120 kΩ, effect an all-pole interruption of the system coupling. It is not sufficient to switch
off the supply voltage to the insulation monitoring device.
5. Set the switch position Imax on the PGH18.... Refer to the instructions in the chapter “Reduced
test current” auf Seite 22.
6. Switch the PGH18... on. The "ON" LED must light up, the two LEDs "
" and "
" must
light up in time with the cycle and then go out again. If the LEDs fail to show any activity whatsoever, the supply voltage and the microfuse installed in the PGH18... should be checked.
7. Connect a suitable measuring clamp or a measuring current transformer to the EDS190P.
8. Switch on the EDS190P by pressing the On/Off button.
9. Make the following settings:
– Select the function IΔS (EDS mode) by pressing the button
– Set the maximum sensitivity:
50 mA for main circuits for EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG-13, the measuring clamps PSA3020, PSA3052, PSA3165 and the measuring current transformers W/
WR…, WS… .
5 mA for control circuits for EDS3091, EDS3091PG, EDS3091PG-13, the measuring clamps
PSA3320, PSA3352 and the measuring current transformers W…8000, WS…8000
– Select the measuring clamp or the measuring current transformer to be used with the button.
– Set the supply system of the system to be monitored in the menu 2.3 (setting IΔs).
– Select yes in menu 3 (setting IΔs) if frequency converters are connected to the sub-distributions to be checked.
10. When using measuring clamps please note:
– Do not connect the core of the measuring clamp to system voltages above the nominal
insulation voltage.
– Keep the contact surfaces of the measuring clamp clean.
40
TGH1420en/12.2011
Operation
– The measuring clamp should not be used in the immediate vicinity of devices which generate magnetic fields, such as transformers or throttles, nor in the vicinity of adjacent conductors with high operating currents.
– Do not disconnect the measuring clamp from the EDS190P when live conductors are routed
through the measuring clamp. Failure to observe this can destroy the measuring clamp!
– Inside the measuring clamp, you should aim for the maximum possible symmetry of the
conductors.
Due to excessive load current, the measuring clamp can reach a saturation state that may
cause an alarm message IΔn >10 A.
– Keep the measuring clamp steady during the measurement!
– Make sure that you do not exert any pressure on the measuring clamp arms.
11. Enclose the green-yellow conductor with the measuring clamp between the PGH18... and
earth. When the EDS190P does not react, the insulation fault is too high and cannot be found.
Recognised test current pulses are indicated by the symbol
.
12. Start insulation fault location at the main distribution point in the IT system. Enclose all system
conductors, but not the PE conductor, with the measuring clamp. For each measurement, wait
for one test cycle (approx. 30 seconds). An alarm message on the EDS190P display signals an
insulation fault downstream of the measuring clamp. It is recommended to carry out fault location with the buzzer activated.
The EDS190P can display the following messages during insulation fault location:
– No CT connected:
Measuring clamp or measuring current transformer not connected or defective.
– Fault:
The measuring clamp is not held steady.
A residual current disturbing the EDS measurement is flowing through the measuring
clamp.
A magnetic field exist in the vicinity of the measuring clamp which disturbs the EDS measurement.
In these cases, the insulation fault cannot be located in the respective sub-distributions
resp. at the location of measurement.
– IΔn >10A / >1A:
A residual current of > 10 A bzw. >1A flows through the measuring clamp. In this case, the
insulation fault cannot be located in the respective sub-distribution. Residual currents of
this size occurring in an IT system can be caused by high system leakage capacitances or by
multiple insulation faults. Therefore, it is possible that this alarm message also signals an
insulation fault in this sub-distribution.
– >>>>:
Measurement is running, this display shows the progress of the measurement. This process
will be completed after approximately 30 seconds.
– Next measurement:
No insulation fault found in this sub-distribution. The measuring clamp or the measuring
current transformer can be moved to the next sub-distribution.
– Alarm ...mA:
An insulation fault has been detected in this sub-distribution. Measurement should be continued along this conductor.
13. Measure along the conductor with the EDS190P until the fault is found. Penetrate radially into
the sub-distributions as you do this. The fault location is found when the test current generated by the PGH18... downstream of the measuring clamp at least exceeds the preset response
TGH1420en/12.2011
41
Operation
value of the EDS190P.
For operating currents < 10 A, it is also possible to enclose one conductor only.
For currents > 10 A, this may produce the effect that the measuring clamp can no
longer be opened. This danger is particularly present in DC systems. If this behaviour occurs, under no circumstances use force, since this would destroy the measuring clamp. Instead, you must disconnect the respective system. After this has
been done, the measuring clamp can be opened without the application of
force.
6.16.2 Using the EDS190P within a permanently installed EDS system
The EDS190P can also be used in a permanently installed EDS system (EDS460/490 resp. EDS461/
491). In extended IT systems with a number of sub-distributions, often only the main distributions
are monitored by a permanently installed EDS system. When the main distribution where the insulation fault exists is recognised, the search will be continued from that point using the EDS190P.
For this purpose, the EDS190P uses the test current pulse of the permanently installed EDS system
(IRDH575, PGH47...). The PGH18... is not required for this application. The scope of delivery of the
EDS3090 and EDS3091 systems does not include a PGH18.... Insulation fault location can only be carried out in energised IT systems. Also observe the operating instructions of the permanently installed
EDS system.
Example: The insulation monitoring device has signalled an insulation fault below its response value
and has started the permanently installed EDS system. The main distribution affected by an insulation fault has been recognised. Continue insulation fault location as follows:
1. Set the EDS system mode to permanent insulation fault location:
– IRDH575: Set "EDS on"
– PGH471: Press the "Start/Stop" button
2. Connect a suitable measuring clamp to the EDS190P.
3. Switch on the EDS190P by pressing the On/Off button.
4. Make the following settings:
–Select function IΔs (EDS mode) with the button
–Set the maximum sensitivity:
50 mA for main circuits for EDS460/490 for the measuring clamps PSA3020, PSA3052,
PSA3165 and the measuring current transformers W/WR…, WS…
5 mA for control circuits for EDS461/491 for the measuring clamps PSA3320, PSA3352 and
measuring current transformers W…8000, WS…8000
– Select the measuring clamp or the measuring current transformer to be used with the button.
– Set the supply system of the system to be checked in the menu 2.3 (setting IΔs).
– Select yes in menu 2.3 (setting IΔs) if frequency converters are connected to the sub-distributions to be tested.
5. When using measuring clamps, please note:
– Do not connect the core of the measuring clamp to system voltages above the nominal
insulation voltage.
42
TGH1420en/12.2011
Operation
– Keep the contact surfaces of the measuring clamp clean.
– The measuring clamp should not be used in the immediate vicinity of devices which generate magnetic fields, such as transformers or throttles, nor in the vicinity of adjacent conductors with high operating currents.
– Do not disconnect the measuring clamp from the EDS190P when live conductors are
enclosed by the measuring clamp. Otherwise the measuring clamp may be destroyed!
– Inside the measuring clamp, you should aim for the maximum possible symmetry of the
conductors. Due to excessively high load current, the measuring clamp can reach a saturation state that may cause an alarm message IΔn >10A.
– Keep the measuring clamp steady during the measurement!
– Make sure that you do not exert any pressure on the measuring clamp arms.
– Enclose the green-yellow conductor with the measuring clamp between the IRDH575 resp.
PGH47... and earth. When the EDS190P does not react, the insulation fault is too high and
cannot be found. Recognised test current pulses are indicated by the symbol
.
6. Start insulation fault location in the sub-distribution of the IT system recognised to be faulty.
Enclose all system conductors, but not the PE conductor, with the measuring clamp. For each
measurement, wait for one test cycle (approx. 30 seconds). An alarm message on the EDS190P
display signals an insulation fault downstream of the measuring clamp. It is recommended to
carry out fault location with the buzzer activated.
The EDS190P can display the following messages during insulation fault location:
– No CT connected:
Measuring clamp or measuring current transformer not connected or defective.
– Fault:
Measuring clamp is not held steady. A residual current flows through the measuring clamp
affecting the EDS measurement.
A magnetic field exist in the vicinity of the measuring clamp which disturbs the EDS measurement.
In these cases, the insulation fault cannot be located in the respective sub-distributions
resp. at the location of measurement.
– Idn >10A / >1A:
A residual current of > 10 A resp. >1A flows through the measuring clamp. In this case, the
insulation fault cannot be located in the respective sub-distribution. Residual currents of
this size occurring in an IT system can be caused by high system leakage capacitances or by
multiple insulation faults. Therefore, it is possible that this alarm message also signals an
insulation fault in this sub-distribution.
– >>>>:
Measurement is running, this display shows the progress of the measurement. This process
will be completed after approximately 30 seconds.
– Next measurement:
No insulation fault found in this sub-distribution. The measuring clamp or the measuring
current transformer can be moved to the next sub-distribution.
– Alarm ...mA:
An insulation fault has been detected in this sub-distribution. Measurement should be continued along this conductor.
7. Measure along the conductor with the EDS190P until the fault is found. Penetrate radially into
the sub-distributions as you do this. The fault location is found when the test current through
the measuring clamp generated by the IRDH575 resp. PGH47... at least exceeds the preset
response value of the EDS190P.
TGH1420en/12.2011
43
Operation
6.16.3 EDS309... in diode-decoupled DC systems
In some applications DC systems are diode decoupled. Between these decoupled circuits compensating currents may occur. The quantity of the currents and its direction depend on the system voltage, the characteristics of the diodes and the kind of loads installed in the system.
When the EDS309... insulation fault location system is used in such systems, the aforementioned
compensating currents will disturb the EDS309... and will cause measuring faults. Therefore Bender
recommends the use of the EDS309... in diode decoupled systems according to the drawing illustrated on the following page.
Please consider the following:

Always use two identical measuring clamps.
Note: do not forget to set the correct measuring clamp in the corresponding menu of the
EDS190P.

For this purpose, use the EDS190P-Set (see ordering information).

Do not exceed the max. length of the coaxial cable of 10 m (per measuring clamp).

Using two measuring clamps will reduce the sensitivity of by 10 %.

Always use the two measuring clamps in a way, that the energy flow direction corresponds to
the marking on the measuring clamp P1 => P2.
The central insulation monitoring device has indicated an insulation fault which is below the insulation value that can be detected with the EDS system. Please consider the information given in
"chapter 4. Points to be considered before use" and then start insulation fault location operation.
Proceed as follows:
1. Read off the current insulation resistance from the insulation monitoring device. If the value of
the insulation resistance is lower than the insulation fault detectable in the EDS system, connect two appropriate measuring clamps to the EDS190P, which are identical
(e.g 2 x PSA3020 or 2 x PSA3052).
2. Switch on the EDS190P by pressing the On/Off button.
3. Make the following settings:
– Select the EDS mode with the function key IΔs
– Set the maximum sensitivity in menu 2.2 (General settings):
50 mA for main circuits for EDS3090, EDS3090PG, EDS3090PG-13, EDS3096PG, EDS3096PG13 for the measuring clamps PSA3020, PSA3052, PSA3165 and the measuring current transformers W/WR…, WS…
5 mA for control circuits
for EDS3091, EDS3091PG, EDS3091PG-13 for the measuring clamps PSA3320, PSA3352 and
the measuring current transformers W…8000, WS…8000
– Select the measuring clamp or measuring current transformer to be used with the button.
4. Set the supply system of the system to be checked in the menu 2.3 (setting IΔs).
5. If frequency converters are connected to the sub-distributions to be tested, the function
inverter in the menu 2.3 (setting IΔs) has to be activated
6. Connect the PGH18... according to the wiring diagram on page 45 to the test current supply
inputs.
44
TGH1420en/12.2011
Operation
DC main distribution (DC 20...360 V)
Central coupling
of the Insulation Monitoring Device (IMD)
and the test device PGH185
L+
LSelector switch
EDS/IMD
S1
Us AC 230 V
PGH185
Insulation monitoring device
e.g. IRDH275/375
Im
mA
(-)
L2
(+
L1
AC/DC
P1
PGH186
l max.
= 10
m
EDS190P
ALARM
52
30
A
S
P
M
D ES
D aten SZ
A urch bl AN
rt.at G
N mes t / E
r. se D / C
/A
at LA
rt.- r / as M
no Dia heet P
.: m : O
B eter T N P
G R
98
0 : 52 H13 O
B
xx
m xx E
m
P
S
A
30
52
10 m
EDS190P
P2
=
l max.
M
D ES
D ate SZ
A urc nbla AN
rt.- h
G
N me tt / E
r. ss D / C
/ A e ata L
rt.- r / sh AM
no Dia ee P
.: m t: O
B ete T N P
98 r GH R
0 :5 1 O
6xx 2 3xx BE
m
m
2/3
05
A3
PS
P1
0
02
L3
)
10
0m
A
ON
10
mA
25
Us
L+
ax
ON
L-
P2
IDs
IDn
ESC
HOLD
RESET
INFO
PSA3052/3020
MENU
L+
DC sub distribution
A
PS
ALARM
IDs
IDn
ESC
HOLD
RESET
INFO
EDS190P
P
M
D ES
D aten SZA
A urch bl N
rt.
at
-N mes t / GE
r. se D / C
/A
at LA
rt. r / as M
-n D he P
o. iam et O
: B et : TG N
98 er H PR
0 : 52 13 O
B
xx
x mmxx E
S
A
30
52
EDS190P
0
02
2/3
5
30
L-
Load
Insulation fault
Load
MENU
Fig. 6.2: Insulation fault location in a diode-decoupled DC system (wiring diagram)
TGH1420en/12.2011
45
Operation
7. Start of the EDS system:
– Switch the PGH18... on. The "ON" LED lights up and the two LEDs
and
light up
in time with the test cycle and then go out again. If the LEDs fail to show any activity whatsoever, the supply voltage and the microfuse installed in the PGH18... should be checked.
– Now enclose the L+ and L- conductors with the measuring clamp. Do not enclose the PE
conductor.
8. Fault location in the system:
– Enclose the supply conductors connected to the redundant loads with one measuring
clamp each. Make sure to enclose the correct corresponding supply conductors to a diode
decoupled load.
– Check that the energy flow direction of the two measuring clamps is identical (see wiring
diagram). For this purpose, the measuring clamps are marked with an arrow.
– Enclose systematically and one after the other all parallel conductors to the loads with the
two measuring clamps. Sections of the loads where insulation faults exist are indicated on
the EDS190P display. The alarm messages are output in the same way as they are output
when a single measuring clamp is used. Alarm messages, see page 43.
46
TGH1420en/12.2011
Operation
6.16.4 Using the EDS190P as a residual current monitor
The EDS190P can also be used as a residual current monitor in TN and TT systems, and provided that
certain conditions are fulfilled, it can also be used in IT systems. Residual current measurement is
only possible in energised systems. The PGH18... is not required for this application.
1. Check that the nominal system voltage is within the permissible limits.
2. Connect a suitable measuring clamp to the EDS190P an.
3. Switch on the EDS190P by pressing the On/Off button.
4. Make the following settings:
– Select function IΔn (RCM mode) with the button
– Set the response value in menu 2.4 (settings IΔn)
– Select the appropriate measuring clamp or measuring current transformer with the button
for the selection of the measuring clamp.
5. When using measuring clamps, please note:
– Do not connect the core of the measuring clamp to system voltages above the nominal
insulation voltage.
– Enclose all system conductors, but not the PE conductor, with the measuring clamp. Do not
enclose shielded cables.
– Keep the contact surfaces of the measuring clamp clean.
– The measuring clamp should not be used in the immediate vicinity of devices which generate magnetic fields, such as transformers or throttles, nor in the vicinity of adjacent conductors with high operating currents.
– Do not disconnect the measuring clamp from the EDS190P when live conductors are
enclosed by the measuring clamp. Otherwise the measuring clamp may be destroyed!
– Inside the measuring clamp, you should aim for the maximum possible symmetry of the
conductors.
Due to excessively high load current, the measuring clamp can reach a saturation state that
may cause an alarm message IΔn >10A.
– Keep the measuring clamp steady during the measurement!
– Make sure that you do not exert any pressure on the measuring clamp arms.
6. Start insulation fault location at the main distribution point in the system. Measure along the
conductor with the EDS190P until the fault is found. Penetrate radially into the sub-distributions as you do this.
7. EDS190P indicates the residual current at each measuring point. If the residual current is
greater than the set response value, the "ALARM" LED lights and the measured value will be
indicated. An acoustical signal will also be given provided that the buzzer is activated.
8. For extended period measurements at one point of the system, the fault memory must be activated in menu 2.2 (settings memory). In this way, it is also possible to find intermittent residual
currents, provided that they are higher than the set response value. The highest measured
residual current is stored.
TGH1420en/12.2011
47
Operation
6.16.5 Measuring harmonics
The harmonics of the basic frequencies of 50 and 60 Hz can also be measured with the EDS190P.
1. Switch on the EDS190P by pressing the On/Off button.
2. Make the following settings:
– Select function IΔn (RCM mode) with the button
– Set the response value in menu 2.4 (settings IΔn):
– Select the measuring clamp or the measuring current transformer to be used with the button.
– Select the system frequency in menu 2.4 (settings IΔn)
– Activate the measurement for the harmonics in menu 2.4 (settings IΔn)
– Select the appropriate harmonics in menu 3.
– EDS190P indicates the residual current of the set harmonics at each measuring point. If the
residual current is greater than the set response value, the "ALARM" LED lights and the
measured value will be indicated. An acoustical signal will also be given provided that the
buzzer is activated.
48
TGH1420en/12.2011
Operation
6.17 Coupling device AGE185 for higher voltages
This is possible for the device versions EDS3090PG, EDS3090PG-13 and EDS3096PG including the insulation fault test device PGH185 and PGH186. The coupling device AGE185 extends the nominal
voltage range of the insulation fault location system EDS309... .
It reduces the power dissipation in the PGH18.... insulation fault test device and allows the connection of the EDS309... to nominal voltages of up to AC 790 V resp. DC 960 V.
Installation, connection and commissioning
Connection and commissioning only by skilled persons! The current safety regulations must be considered.
Connect the wires of the AGE185 according to your individual requirements to the terminals PE of
the system and to the PE socket of the PGH186; No polarity is to be considered.
Wiring diagram
IT-System
PE
Us
Im
ME
Da SSZA
ten NG
Du bla E /
rch tt
CL
Art me / Datas
AM
.-N sse
he P ON
r. /
Art r / Dia et :
.-no. me TG PROB
: B ter : H13x E
x
980 52
6xx mm
PS
A305
2
PGH186
EDS190P
ALARM
To the loads
10
L3
)
L1
(+
AC/DC
L2
(-)
ON
10
0m
A
mA
25
Us
mA
ax
ON
PGH186
IDs
IDn
ESC
HOLD
RESET
INFO
MENU
AGE185
EDS190P
Fig. 6.3: Wiring diagram EDS309... with AGE185
TGH1420en/12.2011
49
Operation
6.18 Power supply of the EDS190P
Supply via 3 NiMH cells, 1.2 V or 3 Mignon cells, type LR6 AA, 1.5 V.
Also when the device is supplied by a power supply unit, 3 functional accumulators must be available in the battery compartment.
Do not connect the power supply unit when batteries are inserted.
6.18.1 Displaying the battery status
Four different charge statuses can be indicated on the display:
100 %, 50 %, 25 % and an empty icon to show that the battery is used up.
6.18.2 Replacing batteries or accumulators
The battery compartment is located on the rear side of the EDS190P. When the batteries resp. accumulators are replaced, the device parameters of the EDS190P that have been set will remain the
same.
1. Unscrew the two screws of the cover on the rear side, remove the cover.
2. Remove the used batteries resp. accumulators.
3. Insert the new batteries resp. accumulators into the battery compartment with the correct
polarity according to the imprinted positioning diagram.
4. Close the cover.
6.18.3 Power supply unit delivered with the system
The intended use of the power supply unit delivered with the system is to charge the accumulators
inside the EDS190P. The charge status of the accumulators is indicated on the display of the
EDS190P.
50
TGH1420en/12.2011
7. Technical data
7.1 Technical data of the EDS309... system
The technical data indicated in this chapter apply to the
components PGH18..., EDS190P, AGE185.
Environment / EMC
EMC.......................................................................................................................................................................IEC 61326
Ambient temperature, operation............................................................................................................-10 °C…+ 55 °C
Classification of climatic conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ............................................................ 3K5 (except condensation and formation of ice)
Transport (IEC 60721-3-2) .................................................................... 2K3 (except condensation and formation of ice)
Storage (IEC 60721-3-1) ....................................................................... 1K4 (except condensation and formation of ice)
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3)....................................................................................................................................3M4
Transport (IEC 60721-3-2) .......................................................................................................................................... 2M2
Long-time storage (IEC 60721-3-1) ........................................................................................................................... 1M3
General data
Operating mode ............................................................................................................................... continuous operation
Position of normal use.................................................................................................................................................... any
Weight approx. ........................................................................................................ 7000 g (8500 g including PSA3165)
7.2 Technical data PGH18...
Insulation coordination acc. to IEC 60664-1 / IEC 60664-3
Rated insulation voltage........................................................................................................................................ AC 500 V
Rated impulse voltage/pollution degree................................................................................................................. 4 kV/3
Nominal system voltage Un
PGH185.......................................................................................................3AC/AC 42...460 Hz 20...575 V, DC 20...504 V
PGH183............................................................................................................... AC 42...460 Hz 20...265 V, DC 20...308 V
PGH186...........................................................................................................3AC/AC 42...460 Hz 0...575 V, DC 0...504 V
Supply voltage
Supply voltage US .................................................................................................................................AC 50...60 Hz 230 V
Operating range of Us ............................................................................................................................... 0.85…1.15 x Us
Supply voltage US version -13 ...................................................................................................AC 50...60 Hz 90…132 V
PGH 183, PGH 185:
Power consumption ............................................................................................................................................... ≤ 3 VA
PGH 186:
Power consumption ............................................................................................................................................... ≤ 6 VA
Test current
PGH185/186
Max. test current, selectable ..............................................................................................................................10 / 25 mA
PGH183
Max. test current, selectable ...............................................................................................................................1 / 2.5 mA
PGH183/185/186
Test cycle...........................................................................................................................................................................2 s
Idle time ...........................................................................................................................................................................4 s
TGH1420en/12.2011
51
Technical data
Test voltage
PGH186.....................................................................................................................................................................DC 50 V
General data
Degree of protection DIN EN 60529 (VDE 0470-1) ..................................................................................................... IP40
Enclosure material...............................................................................................................................................ABS plastic
Flammability class..................................................................................................................................................UL94V-0
Weight.....................................................................................................................................................................< 700 g
7.3 Technical data EDS190P
( )* = Factory settings
Insulation coordination acc. to IEC 60664-1 / IEC 60664-3
Rated insulation voltage ............................................................................................................................................... 50 V
Rated impulse voltage/pollution degree ............................................................................................................0.8 kV / III
Supply voltage
Supply voltage US....................................................................................... DC 6 V +/- 10 %, external power supply unit
Batteries..................................................................................................................................................3 x LR6 AA – 1.5 V
Accumulators .................................................................................................................................. 3 x NiMh ≥ 2000 mAh
Size.............................................................................................................................................................................. AA R6
Power consumption............................................................................................................................................... ≤ 0.5 W
Hours of operation (without display illumination)................................................................................................. ≥ 60 h
Measuring circuit insulation fault location
Nominal system voltage ..................... when the conductors are uninsulated, including measuring clamp up to 600 V
Rated frequency ..................................................................................................................................... DC, 42…2000 Hz
Main circuit (ITmax = 50 mA):
Measuring clamps................................................................................................................PSA3020, PSA3052, PSA3165
Response sensitivity IΔs adjustable ...................................................................................................2… 10 mA (5 mA)*
Operating uncertainty......................................................................................... ±30 % / ±2 mA of the reference value
Control circuit: (ITmax = 5 mA)
Measuring clamps.................................................................................................................................PSA3320, PSA3352
Response sensitivity IΔs adjustable ...................................................................................... 200… 1 000 μA (500 μA)*
Operating uncertainty..................................................................................... ±30 % / ± 0.1 mA of the reference value
Measuring circuit residual current
with measuring clamps .......................................................................................................PSA3020, PSA3052, PSA3165
Measuring range ........................................................................................................5 mA … 10 A (crest factor up to 3)
Response sensitivity IΔn adjustable..........................................................................................10 mA…10 A (100 mA)*
Measuring clamps.................................................................................................................................PSA3320, PSA3352
Measuring range .......................................................................................................... 2 mA … 2 A (crest factor up to 3)
Response sensitivity IΔn adjustable............................................................................................ 5 mA … 1 A (100 mA)*
Frequency range ...........................................................................................................................................42…2000 Hz
Operating uncertainty.........................................................................................................................................0…-35%
Hysteresis......................................................................................................................................................................20 %
Harmonics, adjustable ............................................................................................................. 2.-9. harmonic component
Inputs
Type of connection measuring clamp .................................................................................................................. BNC plug
Power supply unit ......................................................................................................................................................DC 6 V
Display
LCD......................................................................................................................3 x 16 characters, selectable illumination
LED...............................................................................................................................................................................Alarm
Operating uncertainty .......................................................................................................................................... ±17,5%
52
TGH1420en/12.2011
Technical data
General data
Degree of protection, internal components DIN EN 60529 (VDE 0470-1)..................................................................IP40
Protection class acc. to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100) ............................................................... Class III
Enclosure material.............................................................................................................................................. ABS plastic
Flammability class..................................................................................................................................................UL94V-0
Operating manual .................................................................................................................................................TGH1420
Weight .....................................................................................................................................................................< 400 g
Software version ................................................................................................................................................ D316 V1.0
Dimensions WxHxD:................................................................................................................................... 84x197x30 mm
7.4 Technical data measuring clamps
Electrical safety
Standard ............................................................................................................................. IEC 61010-2-030:2004-05-01
Pollution degree ................................................................................................................................................................. 2
Category............................................................................................................................................................................. III
Operating voltage........................................................................................................................................................600 V
Nominal insulation voltage................................................................................... AC 600 V CAT III resp. AC 300 V CAT IV
General data
Degree of protection, internal components DIN EN 60529 (VDE 0470-1)..................................................................IP40
Protection class acc. to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100) ............................................................... Class III
Test port ................................................................................................................................................................ BNC plug
Dimensions PSA3052/3352 ................................................................................................................ 216 x 111 x 45 mm
Dimensions PSA3020/3320 ...................................................................................................................135 x 65 x 30 mm
Dimensions PSA3165 .......................................................................................................................... 285 x 179 x 45 mm
permissible cable diameter PSA3052/3352............................................................................................................ 52 mm
permissible cable diameter PSA3020 /3320........................................................................................................... 20 mm
permissible cable diameter PSA3165 ................................................................................................................... 115 mm
Weight PSA3052/3352 .................................................................................................................................approx. 700 g
Weight PSA3020/3320 .................................................................................................................................approx. 300 g
Weight PSA3165 .........................................................................................................................................approx. 1300 g
7.5 Technical data AGE185
Insulation coordination acc. to IEC 60664-1
Rated insulation voltage...................................................................................................................................... AC 1000 V
Rated impulse voltage/pollution degree................................................................................................................4 kV / III
Nominal system voltage Un ..................................................................3AC/AC 42...460 Hz, 500...790 V, DC 400...960 V
General data
Degree of protection, internal components DIN EN 60529 (VDE 0470-1)..................................................................IP30
Type of connection/cable:.......................................................... Safety plug with green-yellow connecting wire 1 mm2
Weight .....................................................................................................................................................................< 200 g
Dimensions WxHxD:.................................................................................................................................. 88.5x42x21 mm
TGH1420en/12.2011
53
Technical data
7.6 Dimension diagrams
All dimensions are given in mm
Aluminium case
155
145
340
310
430
AGE185
88.5
ca. 450
21
42
ca. 1950
54
TGH1420en/12.2011
Technical data
7.7 Standards
Observe the applicable national and international standards. The EDS309... series meets the requirements of the following equipment standards:

IEC 60364-4-41, modified
Low-voltage electrical installations - Part 4-41: Protection for safety - Protection against electric
shock

IEC 61557-9
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems

IEC 61010-1
Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirements.
TGH1420en/12.2011
55
56
PSA3020
PSA3052 AC 50...60 Hz, 230 V
PSA3020
PSA3052 AC 50...60 Hz, 90…132 V
Optional Accessories
Measuring clamp 115 mm for EDS3090... and EDS3096…
Coupling device to extend the nominal voltage range of the PGH185/186
Accessories for fault location in diode-decoupled systems
AGE185
EDS165-SET
PSA3165
EDS190P
EDS190P
EDS3096PG
EDS3096PG-13
PGH186
PGH186-13
PGH185
PSA3020
PSA3052
PSA3352
AC 50...60 Hz, 230 V
AC 50...60 Hz, 230 V
AC 50...60 Hz, 230 V
AC 50...60 Hz, 90…132 V
EDS190P
PSA3320
PGH183
PSA3352
PSA3352
PSA3352
EDS3092PG
PSA3320
PSA3320
PSA3320
PGH183
PGH183-13
EDS190P
EDS190P
EDS190P
AC 50...60 Hz, 230 V
AC 50...60 Hz, 90…132 V
Supply voltage
EDS3091
EDS3091PG
EDS3091PG-13
Measuring
clamp
52 mm
PSA3052
PSA3052
PSA3052
EDS190P
EDS190P
EDS190P
Insulation fault
evaluator
Scope of delivery
Measuring
Insulation fault
clamp
test device
20 mm
PSA3020
PGH185
PSA3020
PGH185-13
PSA3020
EDS3090
EDS3090PG
EDS3090PG-13
Type
Art. No..
B91082007
AC 42...460 Hz, 500...790
B980305
V, DC 400...960 V
B980852
AC 42...460 Hz, 0...575 V B91082025
and DC 0...504 V
B91082029
AC 42...460 Hz, 20...265 V
and DC 20...308 V
B91082030
AC 42...460 Hz, 20...575 V
and DC 20...504 V
B91082027
AC 42...460 Hz, 20...265 V
B91082023
and DC 20...308 V
B91082024
B91082026
AC 42...460 Hz, 20...575 V
B91082021
and DC 20...504 V
B91082022
Nominal voltage
Technical data
7.8 Ordering information
TGH1420en/12.2011
TGH1420en/12.2011
Aluminium case with carrying strap
1
1
1
1
1
1
1
1
1
Device type
EDS3090
EDS3090PG
EDS3090PG-13
EDS3091
EDS3091PG
EDS3091PG-13
EDS3092PG
EDS3096PG
EDS3096PG-13
Operating manual TGH1420
1
1
Insulation fault evaluator
EDS190P
EDS190P
EDS190P
Clamping plug for 4 mm
1
1
1
1
Adapter BNC/4mm plug -> Measuring CT
1
1
1
1
1
1
Power supply unit for EDS190P
1
1
1
1
1
1
1
1
1
Insulation fault test device
EDS190P
EDS190P
EDS190P
Supply cable for PGH18...
1
1
1
1
1
2
PGH183
PGH185
PGH186
PGH186-13
1
1
PGH183
PGH183-13
Safety measuring cable, black
3
3
6
3
3
1
1
2
1
1
1
1
Safety measuring cable, green/yellow
3
3
3
3
6
3
3
3
3
Safety claw grip, black
1
1
1
1
2
1
1
1
1
Safety claw grip, green/yellow
PGH185
PGH185-13
AGE185
AGE185
AGE185
AGE185
Coupling device, optional
1
1
1
PSA3020
PSA3020
PSA3320
PSA3020
PSA3320
PSA3320
PSA3320
PSA3020
PSA3020
PSA3020
Measuring clamp 20 mm
1
1
1
PSA3052
PSA3052
PSA3352
PSA3052
PSA3352
PSA3352
PSA3352
PSA3052
PSA3052
PSA3052
Measuring clamp 52 mm
1
1
1
Measuring clamps
PSA3165
PSA3165
PSA3165
PSA3165
PSA3165
Measuring clamp 115 mm, optional
EDS190P
EDS190P
EDS190P
PGH18... with Accessories for
1
1
1
1
1
1
1
1
1
EDS190P-Set, optional
1
1
1
EDS190P with
Accessories
Components EDS309...
Technical data
7.9 List of components
57
Technical data
58
TGH1420en/12.2011
8. Frequently asked questions

The Isometer indicates an insulation fault that cannot be localised with the EDS 309.... What
could be the cause?
– Check whether there are sub-distributions in the IT system being checked which are
earthed. All outgoing distributions are to be checked for unwanted connection to earth.
Also the N conductor of the transformer supplying the IT system must not be connected to
earth.
– There is possibly no test current available. Check the earth connection of the test current
generator PGH18..., IRDH575 for correct connection.
– The PE conductor has unintentionally been routed through the measuring clamp or the
measuring current transformer.

EDS190P outputs the message "Fault“. What is the reason for this fault?
– Frequency converters or other disturbing loads may exist in the system being checked.
The menu item settings /IΔs/U/converters in the menu of the EDS190P has to be activated
with yes.
– Galvanic connections exist between different sub-distributions downstream of the measuring clamps in the direction to the loads.
– The location of the insulation fault may be upstream the measuring point of the measuring
clamp or the measuring current transformer.

EDS190P displays the fault message "No CT connected“. What could be the cause?
– There is no measuring clamp connected or the measuring clamp is defective.
– A measuring clamp or a measuring current transformer of the wrong type has been connected to the EDS190P, see table on page 31.

EDS190P displays the fault message "Short circuit CT“. What could be the cause?
– The measuring clamp is defective.
– A measuring clamp or a measuring current transformer of the wrong type has been connected to the EDS190P, see table on page 31.

In the EDS mode (IΔs), the EDS190P displays the fault message "IΔn > 1 A“ resp. "IΔn > 10 A“.
What could be the cause for these high currents?
– Due to a low-resistance insulation fault, an excessively high residual current flows through
the measuring clamp or the measuring current transformer.
– Due to the parallel connection of several insulation faults an excessively high residual current flows through the measuring clamp or the measuring current transformer.
– Strong magnetic fields in the vicinity of the measuring clamp generate a measuring signal in
the measuring clamp or in the measuring current transformer.
– A measuring error will occur unless all active conductors are enclosed with the measuring
clamp.

The LC display shows undefined indications. What could be the cause?
– The installed batteries or accumulators are almost used up.
TGH1420en/12.2011
59
Frequently asked questions
60
TGH1420en/12.2011
INDEX
A
F
Accessories
- optional 13
Accumulator
- replace 50
Alarm is output acoustically 34
Alarm LED 31
Alarm output activated via LED 34
Alarms in the EDS or RCM mode 35
Application
- primary 40
Factory settings 36
Fault 36
Fault current circuit 15
Fault memory M is activated 34
Frequently asked questions
- 59
B
Button to select the measuring clamp 31
C
Q
H
Querying the current response values 31
Querying the device type 31
Querying the software version 31
Hold function activated 34
HOLD key 32
R
Leakage currents 17
List of components 57
RCM mode
- Function 18
Reset button 32
Residual current evaluator 14
Residual currents
- Path 17
Response characteristic curves for control
circuits 25
Response characteristic curves for main
circuits 23
M
S
measuring clamps
- using 40
Measuring current transformer
- commercially available 13
Menu structure 37
Saving the measured value with HOLD 32
Selected measuring current transformer
34
Selection of the measuring current transformer 31
Selection of the measuring sensitivity 34
Selection of the operating mode 31
SPC 22
Standard display in the EDS mode 35
Standard display of the EDS190P 35
Standards 55
Starting the menu mode 32
symmetrical
- insulation fault 21
System components 7, 11
Systems
- deenergised 27
I
Indication of the test current pulse 34
Insulation fault evaluator 14
Intended use 9
Characteristic curves 23
Charge status of the accumulators 34
Clear fault memory 32
Commissioning 27
conductors
- shielded 15
Connection 28
Connection for external power supply unit
31
Converters in the system 36, 37
Coupling 40
Coupling device AGE185 49
D
N
Decoupling the insulation monitoring device 27
Device resp.measuring errors 36
Device-specific safety information 9
Dimension diagrams 54
Diode decoupled IT system 44
Display elements and their meaning 34
Display illumination 32
Down key 32
Navigation in the EDS190P menu 37
On/Off switching 32
Operating mode button 31
Operating principle 15
Ordering information including accessories 56
E
P
EDS mode 14
EDS190P
- Operating elements 31
Permanently installed EDS system 42
persons 10
PGH18...
- Operating elements 30
TGH1420en/12.2011
Power supply of the EDS190P 50
Practical use 40
Progress bar showing the measurement
progress in the EDS mode 34
L
O
T
Technical data 51
Test current 15
Test current limit 22
Test cycle 16
61
INDEX
U
Up key 32
V
View harmonics 35, 39
62
TGH1420en/12.2011
Dipl.-Ing. W. Bender GmbH & Co. KG
Londorfer Str. 65 • 35305 Grünberg • Germany
Postfach 1161 • 35301 Grünberg • Germany
Tel.: +49 6401 807-0
Fax: +49 6401 807-259
E-Mail: info@bender-de.com
Web: http://www.bender-de.com