Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 1
Issued: June 1999
Status: New
Data subject to change without notice
Features
• Feeder terminal for protection, control,
measurement and supervision of medium
voltage networks
• Voltage and current measurement via conventional measuring transformers or current and voltage sensors
• Local man-machine interface including a
large graphic display
• Extended functionality through libraries for
protection, control, measurement, condition monitoring and communication
• Basic protection functions including nondirectional and directional overcurrent and
earth-fault protection, residual voltage,
overvoltage and undervoltage protection,
thermal overload protection, CBFP and
auto-reclosing
• Control functions including local and
remote control of six switching objects, status indication of the switching objects and
interlockings on bay and station level
• Measurement including phase currents,
phase-to-phase and phase-to-neutral voltages, residual current and voltage, frequency, power factor, harmonics, active
and reactive power and energy, etc.
• Condition monitoring including circuitbreaker condition monitoring, trip circuit
supervision and internal self-supervision of
the feeder terminal
• Communication including two communication interfaces: one for local communication
with a PC and the other for remote communication via a substation communication
system
• Part of the ABB’s Distribution Automation
system and ABB’s Panorama concept
Application
The REF 541, REF 543 and REF 545 feeder
terminals are designed to be used for protection, control, measurement and supervision of
medium voltage networks. They can be used
with different kinds of switchgear configuration including single busbar, double busbar
and duplex systems. The protection functions
also support different types of earthing systems such as isolated neutral networks, resonant earthed networks and partially earthed
networks.
In addition to protection, measurement and
control functions the feeder terminals are provided with a large amount of PLC functions,
which allow all the functions needed for the
substation automation to be integrated into
one terminal. The data communication properties include SPA bus communication or
LON bus communication to higher-level
equipment. Further, the LON communication
together with the PLC functions minimizes
the need for hardwiring between the feeder
terminals.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 2
Design
The REF 541, REF 543 and REF 545 feeder
terminal incorporates a wide range of relay
functions:
• Protection functions
• Measurement functions
• Control functions
ers and disconnectors, indication objects for
switching device indications, on/off switching objects for control logic purposes, miscellaneous objects for data monitoring, etc. The
indication of objects can be configured on the
local display. The display is a graphic display
and the mimic configuration picture can be
designed by the user.
• Condition monitoring functions
• Communication functions
Condition monitoring functions
• Standard functions
Condition monitoring function blocks like
supervision of the energizing current and
voltage input circuit, operation time counter,
circuit breaker electric wear, scheduled maintenance, trip circuit supervision and breaker
travel time are available for the REF 54_
feeder terminals.
The function blocks are documented on the
CD-ROM “Technical Descriptions of Functions” (1MRS 750889-MCD).
Protection functions
Protection is one of the most important functions of the REF 54_ feeder terminal. The
protection functions are independent of each
other and have their own setting groups, data
recording, etc.
Typical current-based protection functions
(e.g. overcurrent) can use either Rogowski
coil or conventional current transformer measurement. Correspondingly, voltage-based
functions (e.g. overvoltage) use either voltage
sensors or voltage transformers.
Measurement functions
The measurement functions include three
phase currents, neutral current, three-phase
voltages, residual voltage, frequency, active
and reactive power and power factor. In addition, other measurement functions are available.
As a standard feature the REF 54_ terminal
includes pulse counter inputs. The number of
pulse inputs varies from 7 (REF 541) to 10
(REF 545) according to the REF variant.
Control functions
Control functions are used to read status
information of the switching devices, i.e. circuit breakers, disconnectors and earthing
switches, and information of alarm channels.
The control functions also execute open and
close commands for controllable switching
devices of the switchgear. The control functions provide control objects for circuit break-
Communication functions
The Feeder Terminal REF 54_ provides two
serial communication protocols: SPA and
LON.
Standard functions
Standard functions are used for logics such as
interlocking, alarming and control sequencing. The use of logic functions is not limited
and the functions can be interconnected to
protection, control, measurement, condition
monitoring and other standard functions. In
addition, binary inputs, outputs, LON inputs
and outputs can be connected to standard
functions by using the Relay Configuration
Tool.
Other functions
Low auxiliary voltage indication
The REF 54_ terminal includes indication of
a low auxiliary voltage. The power supply
module issues an internal alarm signal when a
drop in the power supply voltage is detected
(AC fail, active low). The alarm signal will
be activated if the power supply voltage is
about 10% below the lowest rated DC input
voltage of the power supply module.
Indication of a low auxiliary voltage is available in the relay configuration and can be
connected to any signal output of the
REF 54_.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 3
Overtemperature indication
The REF 54_ terminal includes indication of
the internal relay temperature. The power
supply module gives an internal alarm signal
when overtemperature has been detected
inside the relay enclosure. The alarm signal
will be activated if the temperature inside the
relay enclosure increases to +78°C
(+75°C…+83°C). Overtemperature indication is available in the relay configuration and
can be connected to any signal output of the
relay.
Analogue channels
The number of channels used depends on the
feeder terminal configuration and the kind of
matching transformers or sensor inputs used.
A REF 54_ feeder terminal can have a maximum of 10 external analogue channels. Furthermore, the feeder terminal has two internal
analogue channels, channels 11 and 12, for
the residual current and voltage calculated
from phase currents and voltages.
The feeder terminal measures the analogue
signals needed for protection, measuring, etc.
via current and voltage sensors developed by
ABB or galvanically separated matching
transformers.
A current sensor (Rogowski coil) or a voltage
sensor can be connected to each sensor input.
The feeder terminal allows the user to configure each sensor input for the type of sensor to
be used.
The matching transformers and sensor inputs
of the feeder terminal are designed so that
either sensors or matching transformers can
be used on the measuring channels 2…4 and
7…10. Should a matching transformer be
used on a channel, it is not allowed to use a
sensor on the same channel or vice versa. On
channel 1 only sensors can be used and on
channel 5 and 6 only matching transformers
can be used.
The last letter of the hardware number of the
feeder terminal (e.g. 1MRS 090133-AA_/
CA_) specifies whether the feeder terminal is
to be equipped with conventional matching
transformers or with matching transformers
and sensor inputs.
Each analogue channel of the feeder terminal
is separately configured by using the Relay
Configuration Tool.
A separate scaling factor can be set for each
analogue channel. The factors enable differences between the ratings of the protected
unit and those of the measuring device (CTs,
VTs etc.). The setting value 1.00 means that
the rated value of the protected unit is exactly
the same as that of the measuring device.
• Feeder terminals with the hardware number 1MRS090xxx-AAA/CAA are configured for matching transformers
• Feeder terminals with the hardware number 1MRS090xxx-AAB/CAB are configured for matching transformers and sensor
inputs
Calculated analogue channels
The REF 54_ feeder terminal includes two
virtual channels to obtain the residual current
and voltage when sensors are used. Current
and voltage sensors are connected to the
feeder terminal via coaxial cables and therefore residual connection of the phase currents
or open-delta connection of the phase voltages cannot be made. Both amplitude and
phase angle are calculated for the virtual
channels.
Channel 11 is used to numerically derive the
residual current I0 from the three phase currents (I0 = I 1 + I 2 + I 3 ).
Note! When sensitive earth-fault protection is
needed, it is not, however, recommended to
replace cable current transformers with the
numerically derived sum of the phase currents. Normally, an earth-fault setting below
10% of the rated value requires a cable current transformer.
Channel 12 is used to derive the residual voltage U0 from the three phase voltages
(U0 = U 1 + U 2 + U 3 ). This channel is used
instead of the open-delta connection when
voltage sensors are used to measure the phase
voltages.
Binary inputs
The binary inputs of the feeder terminals are
voltage-controlled and optically isolated. The
function of a binary input can be inverted.
The programmable filter time removes
debounces and short disturbances on a binary
input. The filter time is set for each binary
input of the feeder terminals.
The feeder terminals REF 541, REF 543 and
REF 545 differ from each other regarding the
number of binary inputs available. Some of
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 4
Design (cont’d)
the binary inputs can be programmed to operate as pulse counters. When a binary input is
programmed to operate as a pulse counter, the
frequency range of the input is 0…100 Hz.
Oscillation suppression
The feeder terminals have two global parameters for the suppression of binary input oscillation. The settings of these parameters
determine the oscillation level and hysteresis
for all binary inputs. Oscillation suppression
is used to reduce the load from the system
when a binary input starts oscillating. A
binary input is regarded as oscillating if the
number of valid status changes after filtering
is more than the set number of changes per
1 s. During oscillation, the binary input is
blocked (status is invalid) and an event is
generated.
Attributes of a binary input for relay
configuration
For each binary input the status of the input
(value), the time tag for the status change
(time) and the validity of the binary input
(invalidity) can be issued by the attributes.
These attributes are available in the relay configuration and can be used for different purposes, e.g. by using PLC logic functions.
Outputs
The outputs of the feeder terminal are categorized as follows:
• HSPO: High speed power output, doublepole contact, for tripping purposes, etc.
(e.g. circuit breaker)
• PO: Power output, either single-pole or
double-pole contact
• SO: Signal output, either NO (Normal
Open) or NO/NC (Normal Open/Normal
Closed) contact. The output contact is a
normal-duty contact and cannot be used
for controlling a heavy load like a circuit
breaker
Alarm indication LEDs
The feeder terminal has eight alarm indication LEDs to be freely configured using the
Relay Mimic Editor. ON and OFF state texts
and LED colours (green, yellow, red) can be
freely defined. Three basic operation modes
are supported: non-latched, latched-steady
and latched blinking. Alarms can be acknowledged remotely, locally and by using logic.
The alarm channels include time tagging for
detected alarms. The time tagging principle
used depends on the operation mode.
Interlocking indication
The interlocking LED has three modes:
• Normal state: LED is inactive
• Steady lit yellow LED indicates the interlocking disabling operation
• Blinking red LED indicates the interlocking by-pass mode and control test mode
The interlocking LED text can be defined in
the same manner as other alarm channels.
The colour of the interlocking LED cannot be
changed.
The REF 54_ Feeder Terminal has a general
control test mode that overrides all interlocking signals. Activation of the interlocking test
mode activates the interlocking enable signals
of all control objects. Then all control operations are allowed and the enable signals of the
objects are not checked during the control of
the object. The interlocking LED is blinking
red as long as the test mode is active.
Trip Circuit Supervision
The trip circuit supervision inputs consist of
two functional units:
• A constant current generator including the
necessary hardware elements
• A software-based functional unit for signalling
Functional units are based on function blocks
included in the condition monitoring library.
The supervision of the trip circuit is based on
the constant current injection principle. By
default, the trip circuit supervision function is
unconfigured.
For more information about the trip circuit
supervision function, please refer to the CDROM “Technical Descriptions of Functions”
(1MRS 750889-MCD) and the trip circuit
supervision function block specific documentation.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 5
Control panel
External serial communications
The feeder terminal is provided with a graphical MMI panel. The display consists of 19
rows divided into two windows: a main window (17 rows) and an assisting window
(2 rows).
The feeder terminal has two serial communication ports, one on the front panel and the
other on the rear panel.
The graphic MMI panel presents detailed
information on objects, events, measurements, control alarms, and parameters. The
assisting window is used for device-dependent indications/alarms and help messages.
Additionally, the front panel includes the following MMI items:
• a button for control position selection
(local/remote/logic)
• three push-buttons for object control (I, 0,
object selection)
• eight freely programmable alarm LEDs
with different colours according to the
configuration
• interlocking LED for control and test
mode indication
• three protection indication LEDs
• a push-button section with four arrow-buttons and buttons for Clear and Enter
• an optically isolated serial communication
port
• freely programmable button (F) which can
be used in relay configuration
The MMI has two main operation levels: the
user level and the technical level. The user
level is for measurements and monitoring and
the technical level for advanced protection
relay programming.
ABB’s standard RS 232 SPA bus opto-connection on the front panel is for a PC to be
used for configuring the feeder terminal,
feeder-oriented interlocking and other parameters.
The 9-pole RS 485 connection on the rear
panel connects the feeder terminal to the distribution automation system via the SPA bus
or a LON bus. The fibre-optic interface module type RER 103 is used to connect the
feeder terminal to the fibre-optic communication bus. The module RER 103 supports both
SPA bus and LON bus communication.
Self-supervision
The feeder terminals are provided with an
extensive self-supervision system. The selfsupervision system handles run-time fault situations and informs the user about existing
faults over the MMI and SPA bus or LON bus
communication.
About one minute after a fault has been
detected the green READY indicator starts
blinking. At the same time, the relay delivers
a fault signal to the self-supervision output
relay and blocks protection trip outputs.
Additionally, a fault indication text appears
on the MMI of the feeder terminal.
The fault code is stored in the memory and
can be read from the main menu.
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 6
Design (cont’d)
Relay configuration
Relay parameterization
The Relay Configuration Tool is used for
configuring the functions of protection, control, condition monitoring, measurement and
logics.
The parameters of the feeder terminal units
can be set either locally over the MMI or
externally via serial communication using the
Relay Setting Tool.
The configuration tool is based on the IEC
1131-3 standard. The programmable system
of REF 54_ feeder terminals allows the output contacts to be operated in accordance
with the state of the logic inputs and the outputs of protection, control, measurement and
condition monitoring functions. The PLC
logics (e.g. interlocking and alarm logic) are
programmed with Boolean functions, timers,
counters, comparators and flip-flops. The
program is written in the function block diagram language by using the configuration
software.
Local parameterization
Mimic configuration with Relay Mimic
Editor
The Relay Mimic Editor is used for configuring the graphic display and the alarm channels of the feeder terminal. The mimic
configuration may include circuit breakers,
disconnectors, indicators, measurement data
objects and user-defined texts and explanations. Any design can be saved for later use.
All of the eight alarm function blocks can be
configured in the same alarm view of the
mimic editor. ON and OFF state texts (only
one language version can be supported for the
alarm at a time) and LED colours can be
defined. Three different colours can be used
to define the ON and OFF state. Three basic
modes are available:
• non-latched
• latched-steady
• latched blinking
Interlocking LED texts can also be defined in
the same alarm view but the interlocking
LED colours cannot be changed.
Lon network configuration
The Lon Network Tool is used for binding
network variables between the feeder terminal units. Typically, LON is used for transferring status data between units for interlocking
sequences running in each feeder terminal.
When the parameters are set locally, the setting parameters can be chosen from the hierarchical menu structure. The desired
language for parameter description can be
selected.
External parameterization
The Relay Setting Tool is used for parameterizing the feeder terminal units. The parameters can be set off-line in a PC and
downloaded to the relay over a communication port. The menu structure of the setting
tool, including views for parameterization,
are the same as the views on the technical
level of the local MMI.
Terminal connections
All external circuits are connected to the terminal blocks on the rear panel. The terminal
block for the measuring transformers consists
of fixed screw terminals.
ABB sensors (Rogowski coil or voltage sensor) are connected to the feeder terminal with
a special type of shielded twin BNC connectors. This type of connectors is used to
improve reliability and protection against disturbances. Unused sensor inputs must be
short-circuited with a special connector, type
1MRS 1200515.
The serial interface RS 485 on the rear panel
is used for connecting the feeder terminal to
the SPA bus or the LON bus. The SPA bus or
LON bus is connected via a connection module type RER 103. The RER 103 is fitted to
the 9-pole D-type subminiature connector and
screwed to the rear panel.
The binary input and output contacts of the
feeder terminal are connected to the multipole connectors.
Protective earth is connected to the screw
marked with the earth symbol.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 7
Connector description
+
+
L1
Q1
A
Q0
N
L3
0
n
*)
+
Q9
a
da
dn
X1.1
27
P1
L1
L3
25
24
S1
22
21
S2
19
18
P2
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S1
S2
+
PS1_4_ACFail
100V
Mains
1
-
2
Ch 10, VT4
PS1_4_TempAlarm
100V
Ch 9, VT3
100V
Ch 8, VT2
100V
Ch 7, VT1
0,2A
1A
Ch 6, CT5
1A
5A
Ch 5, CT4
1A
5A
Ch 4, CT3
SERIAL BUS
X3.3
X4.1
3
4
IRF
5
6
7
8
9
PS1_4_HSPO3
10
1A
5A
Ch 2, CT1
PS1_4_HSPO1
PS1_4_TCS1
11
12
13
TCS1
15
DIFF
X2.2
DIFF
X2.3
DIFF
X2.4
DIFF
X2.5
DIFF
X2.6
DIFF
DIFF
Ch 9, sensor
16
17
18
PS1_4_HSPO2
PS1_4_TCS2
TCS2
Ch 8, sensor
Ch 7, sensor
X4.2
8
Ch 4, sensor
Ch 3, sensor
9
10
11
12
Ch 2, sensor
Ch 1, sensor
DIFF
13
14
15
PS1_4_HSPO5
16
17
X4.2
1
2
PS1_4_BI1
4
5
PS1_4_BI2
6
7
PS1_4_BI3
X5.1
1
2
3
BIO1_5_BI1
PS1_4_SO1
18
X5.2
3
4
5
BIO1_5_SO1
BIO1_5_BI2
-
4
5
6
6
BIO1_5_SO2
BIO1_5_BI3
7
9
BIO1_5_BI4
-
7
8
9
8
BIO1_5_SO3
BIO1_5_BI5
10
12
BIO1_5_BI6
-
10
11
12
11
BIO1_5_SO4
BIO1_5_BI7
13
15
BIO1_5_BI8
*) Power flow direction
13
14
15
16
17
18
14
BIO1_5_SO5
16
18
BIO1_5_BI9
BIO1_5_BI10
17
BIO1_5_SO6
BIO1_5_BI11
X5.2
1
2
BIO1_5_BI12
REF 541
(1MRS 090115-AAB/CAB)
ef541ext
Fig. 1
Sample connection diagram of REF 541
+
Ch 10, sensor
PS1_4_HSPO4
X2.7
-
+
Ch 3, CT2
1A
5A
X2.1
X2.8
I
X4.1
Disconnector Q1
Close
Disconnector Q1
Open
-
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 8
Design (cont’d)
+
Q1
+
Q2
L1
L3
A
+
0
Q0
N
+
Q3
n
*)
+
a
Q9
da
I
dn
X4.1
X1.1
27
P1
L1
L3
25
24
S1
PS1_4_ACFail
100V
S2
19
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S1
S2
Ch 10, VT4
PS1_4_TempAlarm
100V
Ch 9, VT3
100V
Ch 8, VT2
22
21
P2
+
Mains 1
2
SERIAL BUS
100V
0,2A
1A
IRF
Ch 7, VT1
X3.3
X4.1
3
4
Ch 6, CT5
5
6
1A
5A
Ch 5, CT4
1A
5A
Ch 4, CT3
1A
5A
7
8
9
PS1_4_HSPO3
10
Ch 3, CT2
1A
5A
Ch 2, CT1
PS1_4_HSPO1
PS1_4_TCS1
TCS1
15
X2.1
DIFF
X2.2
DIFF
X2.3
DIFF
X2.4
+
11
12
13
+
Ch 10, sensor
Ch 9, sensor
PS1_4_HSPO2
PS1_4_TCS2
TCS2
16
17
18
Ch 8, sensor
DIFF
Ch 7, sensor
DIFF
Ch 4, sensor
DIFF
Ch 3, sensor
DIFF
Ch 2, sensor
X4.2
X2.5
X2.6
8
PS1_4_HSPO4
X2.7
9
Ch 1, sensor
X2.8
DIFF
PS1_4_HSPO5
Disconnector Q1
Close
10
11
12
13
14
15
Disconnector Q1
Open
16
17
X4.2
1
2
PS1_4_BI1
4
5
PS1_4_BI2
6
7
PS1_4_BI3
PS1_4_SO1
X5.2
3
X5.1
-
1
2
3
18
BIO1_5_BI1
BIO1_5_SO1
4
5
BIO1_5_BI2
-
4
5
6
BIO1_5_BI3
BIO1_5_SO2
6
7
9
BIO1_5_BI4
-
7
8
9
BIO1_5_BI5
BIO1_5_SO3
8
10
12
BIO1_5_BI6
-
10
11
12
BIO1_5_BI7
BIO1_5_SO4
11
13
15
BIO1_5_BI8
13
14
15
16
17
18
BIO1_5_BI9
BIO1_5_SO5
16
18
BIO1_5_SO6
17
BIO1_5_BI11
X7.1
X5.2
1
2
14
BIO1_5_BI10
BIO1_5_BI12
BIO2_7_PO1
17
18
X7.2
X7.1
-
1
2
3
4
5
6
*) Power flow direction
7
8
9
10
11
12
BIO2_7_PO2
1
2
BIO2_7_PO3
4
5
6
BIO2_7_BI1
3
BIO2_7_BI2
BIO2_7_BI3
7
BIO2_7_BI4
BIO2_7_BI5
Disconnector Q2
Close
BIO2_7_PO4
BIO2_7_BI6
8
9
10
Disconnector Q2
Open
11
BIO2_7_BI7
BIO2_7_PO5
BIO2_7_BI8
12
13
14
Disconnector Q3
Close
15
13
14
15
16
BIO2_7_BI9
BIO2_7_PO6
BIO2_7_BI10
16
17
18
REF 543
(1MRS 090127-AAB/CAB)
ef543ext
Fig. 2
Sample connection diagram of REF 543
Disconnector Q3
Open
-
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 9
+
Q1
+
Q2
L1
L3
A
+
0
Q0
N
+
Q3
n
*)
+
a
Q9
da
dn
P1
L1
L3
25
24
S1
+
PS2_4_ACFail
100V
Ch 10, VT4
100V
Ch 9, VT3
S2
19
18
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S1
S2
100V
Ch 8, VT2
100V
Ch 7, VT1
0,2A
1A
1A
5A
X4.1
5
7
8
9
PS2_4_HSPO3
10
1A
5A
+
Ch 3, CT2
1A
5A
Ch 2, CT1
PS2_4_HSPO1
PS2_4_TCS1
TCS1
11
12
13
TCS2
16
17
18
15
DIFF
+
Ch 10, sensor
Ch 9, sensor
DIFF
Ch 8, sensor
X2.4
DIFF
Ch 7, sensor
DIFF
Ch 4, sensor
DIFF
Ch 3, sensor
DIFF
Ch 2, sensor
PS2_4_HSPO2
PS2_4_TCS2
X4.2
1
X2.5
X2.6
X2.7
PS2_4_HSPO4 *)
PS2_4_HSPO5
DIFF
X5.1
1
2
3
BIO1_5_BI1
PS2_4_HSPO6
Disconnector Q1
Close
6
7
8
9
10
11
12
Disconnector Q1
Close
Disconnector Q2
Open
13
BIO1_5_BI2
BIO1_5_BI3
2
3
4
5
Ch 1, sensor
X2.8
7
8
9
3
4
IRF
Ch 6, CT5
Ch 4, CT3
X2.3
-
2
Ch 5, CT4
X2.2
4
5
6
1
X3.3
6
1A
5A
DIFF
-
SERIAL BUS
X2.1
-
Mains
PS2_4_TempAlarm
22
21
P2
I
X4.1
X1.1
27
PS2_4_HSPO7
14
15
16
Disconnector Q2
Open
BIO1_5_BI4
PS2_4_HSPO
BIO1_5_BI5
-
10
11
12
17
18
X5.2
3
BIO1_5_BI6
BIO1_5_BI7
BIO1_5_SO1
4
5
BIO1_5_BI8
13
14
15
16
17
18
BIO1_5_BI9
BIO1_5_SO2
BIO1_5_SO3
BIO1_5_BI11
BIO1_5_SO4
X6.1
1
2
3
BIO1_5_SO6
7
8
9
BIO1_6_BI5
BIO1_6_SO2
4
5
6
7
9
BIO1_6_BI7
BIO1_6_SO3
8
10
12
BIO1_6_BI8
13
14
15
16
17
18
17
3
BIO1_6_SO1
BIO1_6_BI6
10
11
12
16
18
X6.2
BIO1_6_BI3
BIO1_6_BI4
*) Power flow direction
14
BIO1_6_BI1
BIO1_6_BI2
4
5
6
11
13
15
BIO1_5_BI12
BIO1_5_SO5
-
8
10
12
X5.2
1
2
6
7
9
BIO1_5_BI10
BIO1_6_BI9
BIO1_6_SO4
11
BIO1_6_BI10
13
15
BIO1_6_BI11
14
BIO1_6_SO5
16
18
X6.2
1
2
BIO1_6_BI12
BIO1_6_SO6
17
X7.1
X7.1
1
2
3
4
5
6
7
8
9
10
11
12
BIO2_7_BI1
BIO2_7_PO1
BIO2_7_BI3
17
18
X7.2
BIO2_7_BI2
BIO2_7_PO2
1
2
3
BIO2_7_BI4
BIO2_7_BI5
BIO2_7_PO3
BIO2_7_BI6
BIO2_7_BI7
BIO2_7_PO4
BIO2_7_BI8
13
14
BIO2_7_BI9
15
16
BIO2_7_BI10
BIO2_7_PO5
BIO2_7_PO6
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
ef545ext
Fig. 3
Sample connection diagram of REF 545
Disconnector Q3
Close
Disconnector Q3
Open
-
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 10
Auxiliary voltage
For its operation the REF 54_ terminal
requires a secured auxiliary voltage supply.
The feeder terminal’s internal power supply
module forms the voltages required by the
relay electronics. The power supply module
is a galvanically isolated (fly-back type) dc/
dc converter. A green LED indicator
“READY” on the front panel is lit when the
power supply module is in operation.
Technical data
Power supply
There are two basic versions of power supply
modules available for the REF 54_: type PS1
and type PS2. The module PS1 is used in
REF 541 and REF 543 terminals. The module
PS2 is only used in the REF 545 terminal.
The power supply version is specified by a
letter combination in the hardware number of
the REF 54_ feeder terminal.
Table 1: Application function blocks
Functions
Description
MMIWAKE
INDRESET
SWGRP1…SWGRP20
Activation of MMI backlight
Operation indication, relay and register reset
Switchgroup SWGRP1…SWGRP20
Table 2: General function blocks (a partial list)
Functions
Description
ABS
ADD
AND
BITGET
BOOL_TO_INT
BOOL_TO_REAL
COMH
CTD
CTU
CTUD
EQ
F_TRIG
GE
GT
INT2BOOL
LE
LIMIT
LT
MAX
MIN
NE
NOT
OR
R_TRIG
TOF
TON
TP
TRUNC_REAL_TO_DINT
WORD_TO_BYTE
WORD_TO_DWORD
XOR
Absolute value
Adder
Bitwise Boolean AND
Get one bit
Type conversion BOOL to INT
Type conversion BOOL to REAL
Hysteresis comparator
Down-counter
Up-counter
Up-down counter
Equal
Falling edge detector
Greater than or equal
Greater than
INT input to BOOL outputs
Less than or equal
Limiter
Less than
Maximum
Minimum
Not equal
Bitwise Boolean NOT
Bitwise Boolean OR
Raising edge detection
Time delay OFF
Time delay ON
Pulse
Truncation toward zero
Type conversion WORD to BYTE
Type conversion WORD to DWORD
Bitwise Boolean XOR
Please refer to the CD-ROM "Technical Descriptions of Functions" for the complete list.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 11
Table 3: Condition monitoring function blocks
Functions
Description
CMCU3
CMVO3
CMTIME1
CMTIME2
CMGAS1
CMBWEAR1
CMBWEAR2
CMSCHED
CMSPRC1
CMTCS1
CMTCS2
CMTRAV1
Supervision function of the energizing current input circuit
Supervision function of the energizing voltage input circuit
Operate time counter 1 for the operate time used (motors)
Operate time counter 2 for the operate time used (motors)
Gas density monitoring
CB electric wear 1
CB electric wear 2
Scheduled maintenance
Spring charging control 1
Trip Circuit Supervision 1
Trip Circuit Supervision 2
Breaker travel time 1
Table 4: Control function blocks
Functions
Description
COCB1
COCB2
CODC1…COCD5
COIND1…COIND8
COSW1…COSW4
CO3DC1
CO3DC2
COCBDIR
COLOCAT
MMIDATA1…MMIDATA5
MMIALAR1…MMIALAR8
Circuit breaker 1 (2 state inputs / 2 control outputs)
Circuit breaker 2 (2 state inputs / 2 control outputs)
Disconnector 1…5 (2 state inputs / 2 control outputs)
Object indication 1…8 (2 state inputs)
On/off switch 1…4 (1 output)
Three state disconnector 1 (3 state inputs / 4 control outputs)
Three state disconnector 2 (3 state inputs / 4 control outputs)
Direct open for CBs via MMI
Logic control position selector
MIMIC dynamic data point 1…5
Alarm 1…8 (MMI, remote)
Table 5: Measurement function blocks
Neutral current measurement, MECU1A and MECU1B
Io (A)
Io (%)
0.0…20000.0 A
0.0…80.0% of In
Three-phase current measurement, MECU3A
IL1 (A)
IL2 (A)
IL3 (A)
IL1 (%)
IL2 (%)
IL3 (%)
IL1 demand (A)
IL2 demand (A)
IL3 demand (A)
IL1 demand (%)
IL2 demand (%)
IL3 demand (%)
0.0…20000.0 A
0.0…20000.0 A
0.0…20000.0 A
0.0…1000.0% of In
0.0…1000.0% of In
0.0…1000.0% of In
0.0…20000.0 A
0.0…20000.0 A
0.0…20000.0 A
0.0…1000.0% of In
0.0…1000.0% of In
0.0…1000.0% of In
System frequency measurement, MEFR1
Frequency
Average Freq.
Voltage U
10.00…75.00 Hz
10.00…75.00 Hz
0.0…2.0 x Un
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 12
Technical data (cont’d)
Three-phase power and energy measurement, MEPE7
P3 (kW)
Q3 (kvar)
Power factor DPF
Power factor PF
P3 demand (kW)
Q3 demand (kvar)
Energy kWh
Reverse kWh
Energy kvarh
Reverse kvarh
-999999…999999 kW
-999999…999999 kvar
-1.00…1.00
-1.00…1.00
-999999…999999 kW
-999999…999999 kvar
0…999999 kWh
0…999999 kWh
0…999999 kvarh
0…999999 kvarh
Residual voltage measurement, MEVO1A
Uo (V)
Uo (%)
0…150000 V
0.0…120.0% of Un
Three-phase voltage measurement, MEVO3A
U1_12 (V)
U2_23 (V)
U3_31 (V)
U1_12 (pu)
U2_23 (pu)
U3_31 (pu)
U1_12 Aver (V)
U2_23 Aver (V)
U3_31 Aver (V)
U1_12 Aver (pu)
U2_23 Aver (pu)
U3_31 Aver (pu)
0.00…999.99 kV
0.00…999.99 kV
0.00…999.99 kV
0.00…2.00 x Un
0.00…2.00 x Un
0.00…2.00 x Un
0.00…999.99 kV
0.00…999.99 kV
0.00…999.99 kV
0.00…2.00 x Un
0.00…2.00 x Un
0.00…2.00 x Un
Transient disturbance recorder for 16 analogue channels, MEDREC16
The transient disturbance recorder MEDREC16 is used for monitoring the current and voltage waveforms,
and the status data of internal IEC 1131-3 based logic signals and binary inputs connected to the relay
terminals. The maximum number of analogue channels and logic signals is 16. One fundamental cycle
contains 40 samples.
Operation mode
Pre-trg time
Over limit ILx
Over limit Io
Over limit Iob
Over limit Uo
Over limit Ux
Over limit Uxy
Over limit U12b
Over limit ILxb
Under limit Ux
Under limit Uxy
AI filter time
Saturation
Overwrite
Extension
0…100%
0.00…40.00 x In
0.00…40.00 x In
0.00…40.00 x In
0.00…2.00 x Un
0.00…2.00 x Un
0.00…2.00 x Un
0.00…2.00 x Un
0.00…40.00 x In
0.00…2.00 x Un
0.00…2.00 x Un
0.000…60.000 s
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 13
The recording can be triggered by one or several of the alternatives listed below:
• triggering by rising or falling edge of any (or several) of the binary inputs
•
triggering by overcurrent, overvoltage or undervoltage
•
manual triggering via MMI
•
triggering via serial communication or a parameter
•
periodic triggering
The recording length depends on the number of records and channels used. For example, the following
combination of recording length, number of records and number of channels is available at 50 Hz:
# records \ # channels
1
3
10
1
1066 cyc.
21.3 s
399 cyc.
7.9 s
125 cyc.
2.5 s
5
212 cyc.
4.2 s
79 cyc.
1.5 s
25 cyc.
0.5 s
10
106 cyc.
2.1 s
39 cyc.
0.7 s
12 cyc.
0.24 s
Table 6: Protection function blocks
Three-phase non-directional overcurrent protection, low-set stage, NOC3Low, 3I>
Start current
Operate time at DT mode
Time multiplier at IDMT mode
Operation mode
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Accuracy class index E at IDMT mode
0.10…5.00 x In
0.05…300.00 s
0.05…1.00
Not in use
Definite time
Extremely inverse
Very inverse
Normal inverse
Long time inverse
RI-type inverse
RD-type inverse
Peak-to-peak
Fundamental frequency
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±0.01 x In
Injected currents > 2.0 x start current:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 45 ms
±2% of set value or ±20 ms
Class index E = 5.0 or ±20 ms
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 14
Technical data (cont’d)
Three-phase non-directional overcurrent protection, high-set stage, NOC3High, 3I>> and instantaneous
stage, NOC3Inst, 3I>>>
Start current
Operate time
Operation mode
0.10…40.00 x In
0.05…300.00 s
Not in use
Definite time
Instantaneous
Measuring mode
Peak-to-peak
Fundamental frequency
0...1000 ms
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Note! The values below apply when f/fn = 0.95...1.05
0.1...10 x In: ±2.5% of set value or ±0.01 x In
10...40 x In: ±5.0% of set value
Injected currents > 2.0 x start current:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 45 ms
±2% of set value or ±20 ms
Three-phase directional O/C function, low-set stage I>→, DOC6Low
Operation mode
Start current
Operate time
Time multiplier
Basic angle ϕb
Operation direction
Earth-fault protection
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Accuracy class index E at IDMT mode
Not in use;
Definite time
Extremely inv.;
Very inverse
Normal inverse
Long-time inv.;
RI-type inverse
RD-type inverse
0.05…40.00 x In
0.05…300.00 s
0.05…1.00
0…90°
Forward
Reverse
Disabled
Enabled
Phase-to-phase voltages, peak-to-peak measurement
Phase-to-phase voltages, fundamental freq. measurement
Phase-to-earth voltages, peak-to-peak measurement
Phase-to-earth voltages, fundamental freq. measurement
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
0.1...10 x In: ±2.5% of set value or ±0.01 x In
10...40 x In: ±5.0% of set value
±2.5% of measured voltage or ±0.01 x Un
±2°
Injected currents > 2.0 x start current:
internal time < 42 ms
total time < 50 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 45 ms
±2% of set value or ±20 ms
Class index E = 5.0 or ±20 ms
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 15
Three-phase directional O/C function, high-set stage I>>→, DOC6High and instantaneous stage I>>>→,
DOC6Inst
Operation mode
Start current
Operate time
Basic angle ϕb
Operation direction
Earth-fault protection
Non-directional operation (when the direction
cannot be determined)
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Not in use
Definite time
Instantaneous
0.05…40.00 x In
0.05…300.00 s
0…90°
Forward
Reverse
Disabled
Enabled
Disabled
Enabled
Phase-to-phase voltages, peak-to-peak measurement
Phase-to-phase voltages, fundamental freq. measurement
Phase-to-earth voltages, peak-to-peak measurement
Phase-to-earth voltages, fundamental freq. measurement
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
0.1...10 x In: ±2.5% of set value or ±0.01 x In
10...40 x In: ±5.0% of set value
±2.5% of measured voltage or ±0.01 x Un
±2°
Injected currents > 2.0 x start current:
internal time < 42 ms
total time < 50 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 45 ms
±2% of set value or ±20 ms
Three-phase transformer inrush and motor start-up current detector Inrush3, 3I2f/I1f
Ratio I2f/I1f>
Start current
Operation mode
Operation accuracy
Start time
5…50 %
0.10…5.00 x In
Not in use
Inrush mode
Start-up mode
Note! The values below apply when f/fn = 0.95...1.05
Current meas.: ±2.5% of set value or ±0.01 x In
Ratio I2f/I1f measurement: ±5.0% of set value
Internal time < 32 ms
Total time < 40 ms
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 16
Technical data (cont’d)
Non-directional earth-fault protection, low-set stage, NEF1Low, Io>
Start current
Operate time at DT mode
Time multiplier at IDMT mode
Operation mode
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Accuracy class index E at IDMT mode
1.0…100.0 % of In
0.05…300.00 s
0.05…1.00
Not in use
Definite time
Extremely inverse
Very inverse
Normal inverse
Long time inverse
RI-type inverse
RD-type inverse
Peak-to-peak
Fundamental frequency
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value + 0.0005 x In
Injected currents > 2.0 x start current:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 45 ms
±2% of set value or ±20 ms
Class index E = 5.0 or ±20 ms
Non-directional earth-fault protection, high-set stage, NEF1High, Io>> and instantaneous stage, NEF1Inst,
Io>>>
Start current
Operate time
Operation mode
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
0.10…12.00 x In
0.05…300.00 s
Not in use
Definite time
Instantaneous
Peak-to-peak
Fundamental frequency
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or + 0.01 x In
Injected currents > 2.0 x start current:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 45 ms
±2% of set value or ±20 ms
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 17
Directional earth-fault protection, low-set stage, DEF2Low, Io>→
Start current
Start voltage
Operate time at DT mode
Time multiplier at IDMT mode
Operation mode
Operation criteria
Operation direction
Basic angle ϕb
Operation characteristic
Intermittent E/F
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Accuracy class index E at IDMT mode
1.0…25.0% of In
2.0…100.0% of Un
0.1…300.0 s
0.05…1.00
Not in use
Definite time
Extremely inverse
Very inverse
Normal inverse
Long time inverse
Basic angle & Uo
Basic angle
IoSin/Cos & Uo
IoSin/Cos
Non-directional Io
Non-directional Uo
Forward
Reverse
-90°
-60°
-30°
0°
IoSin(ϕ)
IoCos(ϕ)(0)
Not active
Active
Peak-to-peak
Fundamental frequency
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value + 0.0005 x In
±2.5% of set value or + 0.01 x Un
Phase angle ±2°
Injected neutral current > 2.0 x start current and
residual voltage > 2.0 x start voltage:
internal time < 72 ms
total time < 80 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 50 ms
±2% of set value or ±20 ms
Class index E = 5.0 or ±20 ms
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 18
Technical data (cont’d)
Directional earth-fault protection, high-set stage, DEF2High, Io>>→ and instantaneous stage, DEF2Inst,
Io>>>→
Start current
Start voltage
Operate time
Operation mode
Operation criteria
Operation direction
Basic angle ϕb
Operation characteristic
Intermittent E/F
Measuring mode
Drop-off time of the operate time counter
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
1.0…200.0% of In
2.0…100.0% of Un
0.1…300.0 s
Not in use
Definite time
Instantaneous
Basic angle & Uo
Basic angle
IoSin/Cos & Uo
IoSin/Cos
Non-directional Io
Non-directional Uo
Forward
Reverse
-90°
-60°
-30°
0°
IoSin(ϕ)
IoCos(ϕ)(0)
Not active
Active
Peak-to-peak
Fundamental frequency
0...1000 ms
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value + 0.0005 x In
±2.5% of set value or + 0.01 x Un
Phase angle ±2°
Injected neutral current > 2.0 x start current
and residual voltage > 2.0 x start voltage:
internal time < 72 ms
total time < 80 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 50 ms
±2% of set value or ±20 ms
Phase discontinuity protection, CUB3Low, 3∆I>
Start unbalance
Operate time
Operation mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
10.0…95.0%
1.0…300.0 s
Not in use
Definite time
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±1 % unit
internal time < 95 ms
total time < 100 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
Total time for blocking: < 25 ms
Total time when current drops below start value: < 50 ms
±2% of set value or ±50 ms
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 19
Three-phase overvoltage protection, low-set stage, OV3Low, 3U>
Start voltage
Operate time
Time multiplier
Operation mode
Measuring mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Accuracy class index E at IDMT mode,
typically
0.80…1.60 x Un
0.05…10.00 s
0.05…1.00
Not in use
Definite time
A curve
B curve
Phase-to-phase voltages; peak-to-peak measurement
Phase-to-phase voltages; fundamental freq. measurement
Phase-to-earth voltages; fundamental freq. measurement
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value
Injected voltages = 1.1 x start voltage:
internal time < 42 ms
total time < 50 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 50 ms
±2% of set value or ±20 ms
±20 ms
Three-phase overvoltage protection, high-set stage, OV3High, 3U>>
Start voltage
Operate time
Operation mode
Measuring mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
0.80…1.60 x Un
0.05…10.00 s
Not in use
Definite time
Phase-to-phase voltages; peak-to-peak measurement
Phase-to-phase voltages; fundamental freq. measurement
Phase-to-earth voltages; fundamental freq. measurement
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value
Injected voltages = 1.1 x start voltage:
internal time < 42 ms
total time < 50 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 50 ms
±2% of set value or ±20 ms
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 20
Technical data (cont’d)
Three-phase undervoltage protection, low-set stage, UV3Low, 3U<
Start voltage
Operate time
Time multiplier
Operation mode
Measuring mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
Accuracy class index E at IDMT mode,
typically
0.30…1.20 x Un
0.1…120.0 s
0.1…1.0
Not in use
Definite time
C curve
Phase-to-phase voltages; peak-to-peak measurement
Phase-to-phase voltages; fundamental freq. measurement
Phase-to-earth voltages; fundamental freq. measurement
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±0.01 x Un
Injected voltages = 0.9 x start voltage:
internal time < 42 ms
total time < 50 ms
Injected voltages < 0.5 x start voltage:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 60 ms
±2.5% of set value
±35 ms
Three-phase undervoltage protection, high-set stage, UV3High, 3U<<
Start voltage
Operate time
Operation mode
Measuring mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
0.30…1.20 x Un
0.1…120.0 s
Not in use
Definite time
Phase-to-phase voltages; peak-to-peak measurement
Phase-to-phase voltages; fundamental freq. measurement
Phase-to-earth voltages; fundamental freq. measurement
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±0.01 x Un
Injected voltages = 0.9 x start voltage:
internal time < 42 ms
total time < 50 ms
Injected voltages < 0.5 x start voltage:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
< 60 ms
±2.5% of set value
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 21
Residual overvoltage protection, low-set stage, ROV1Low, Uo>
Start voltage
Operate time
Operation mode
Measuring mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
2.0…20.0% of Un
0.05…300.00 s
Not in use
Definite time
Peak-to-peak
Fundamental frequency
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±0.01 x Un
Injected voltages >2 x start voltage:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
Total time for blocking: < 25 ms
Total time when voltage drops below start value: < 50 ms
±2% of set value or ±20 ms
Residual overvoltage protection, high-set stage, ROV1High, Uo>> and instantaneous stage, ROV1Inst,
Uo>>>
Start voltage
Operate time
Operation mode
Measuring mode
Operation accuracy
Start time
Reset time
Reset ratio, typically
Retardation time
Operate time accuracy at DT mode
2.0…80.0% of Un
0.05…300.00 s
Not in use
Definite time
Peak-to-peak
Fundamental frequency
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±0.01 x Un
Injected voltages >2 x start voltage:
internal time < 32 ms
total time < 40 ms
40...1000 ms (depends on the minimum pulse width set for
the trip output)
0.95
Total time for blocking: < 25 ms
Total time when voltage drops below start value: < 50 ms
±2% of set value or ±20 ms
Three-phase thermal overload protection for cables TOL3Cab 3
Time constant for the cable
Maximum load current for the cable
Maximum temperature of conductor
Reference temperature
Trip temperature
Prior alarm temperature
Reclosure temperature
Ambient temperature
Operation mode (principle of ambient
temperature compensation)
Operation accuracy
Reset ratio
1…999 min
1.0…5000.0 A
40.0…150.0°C
-50.0…100.0°C
80.0…120.0%
40.0…100.0%
40.0…100.0%
-50.0…100.0°C
Not in use
No sensors; the set ambient temperature
1 sensor used
2 sensors used
Note! The values below apply when f/fn = 0.95...1.05
±1.0%, I = 0.1...10.0 x In
Trip: (Calculated temp. rise - 0.1) / Trip temperature
Start: (Calculated temp. rise - 0.1) / Prior alarm
temperature
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 22
Technical data (cont’d)
Underfrequency or overfrequency protection, 5 stages, Freq1St1… Freq1St5
Operation mode
Undervoltage limit for blocking
Start value for under-/overfrequency prot.
Operate time for under-/overfrequency prot.
Start value for df/dt protection
Operate time for df/dt protection
Operation accuracy
Start time
Reset time
Operate time accuracy
Not in use
f</f> 1 timer
f</f> 2 timers
f</f> OR df/dt>
f</f> AND df/dt>
f</f> OR df/dt<
f</f> AND df/dt<
0.30…0.90 x Un
25.00…75.00 Hz
0.10…120.00 s
0.2…10.0 Hz/s
0.12…120.00 s
Under-/overfrequency (f</f>): ±10 mHz
Frequency rate of change (df/dt);
real df/dt < ±5 Hz/s: ±100 mHz/s
real df/dt < ±15 Hz/s: ±2.0% of real df/dt
Undervoltage blocking: ±1.0% of set value
Total start times at fn = 50 Hz:
Frequency measurement < 100 ms
Df/dt measurement < 120 ms
140...1000 ms (depends on the minimum pulse width set
for the trip output)
±2% of set value or ±30 ms
Auto-reclosure function, AR5Func
Number of reclosures
Initiation mode
AR1 AR2, AR3, AR4 start delay
Dead time
Synchro-check
Discriminating time td
0…5
Trip
Start
No operation
AR shot initiated
Initiation of AR shot blocked
0…10.00 s
0.20…300.00 s
Not in use; ARSYNC in use
0…30.00 s
Operation accuracy
±1% of setting value or ±30 ms
AR1, AR2, AR3, AR4 starting line operation
mode
Synchro-check/voltage check function stage 1 and stage 2, SCVCSt1 and SCVCSt2
Upper threshold voltage Umax
Lower threshold voltage Umin
Voltage difference ∆U
Phase angle difference ∆phase
Frequency difference ∆f
0.50…1.00 x Un
0.10…0.80 x Un
0.02…0.50 x Un
5…60°
0.02…0.50 Hz
Operation accuracy
Note! The values below apply when f/fn = 0.95...1.05
±2.5% of set value or ±0.01 x Un
±10 mHz
±2°
< 50 ms
0.975 x Un
±2% of set value or ±20 ms
Reset time
Reset ratio
Operate time accuracy
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 23
Table 7: Energizing inputs
Rated frequency
Current inputs
50.0/60.0 Hz
rated current
Thermal withstand
capability
Voltage inputs
Sensor inputs, max 8
0.2 A/1 A/5 A
continuously
1.5 A/4 A/20 A
for 1 s
20 A/100 A/500 A
dynamic current withstand, half-wave value
50 A/250 A/1250 A
input impedance
<750 mΩ/<100mΩ/
<20 mΩ
rated voltage
100 V/110 V/115 V/120 V
(parameterization)
voltage withstand, continuous
2 x Un (240 V)
burden at rated voltage
<0.5 VA
voltage range RMS
±9.4 V
voltage range peak
±12 V
input impedance
>4.7 MΩ
input capacitance
< 1 nF
Table 8: Auxiliary power supplies
Type
PS1/240V
(REF 541,
REF 543)
Input voltage, ac
110/120/220/240 V
-
Input voltage, dc
110/125/220 V
24/48/60 V
Operating range
ac 85…110%, dc 80…120% of
rated value
dc 80…120% of rated value
PS2/240V
(REF 545 only)
Burden quiescent/operating
~20/~40 W
Ripple in dc auxiliary voltage
max. 12% of the dc value
Interruption time in auxiliary dc
voltage without resetting
<50 ms, 110 V and
<100 ms, 200 V
Internal overtemperature
indication
+78°C (+75…+83°C)
PS1/48V
(REF 541,
REF 543)
Table 9: Binary inputs
Operating range
18…265 V dc
(24/48/60/110/220 V dc)
Current drain
~2…25 mA
Power consumption/input
<0.8 W
Pulse counting (specific binary inputs), frequency
range
0…100 Hz
Table 10: Signal outputs
Rated voltage
250 V ac/dc
Continuous carry
5A
Make and carry for 0.5 s
10 A
Make and carry for 3 s
8A
Breaking capacity when control circuit time-constant 1 A/0.25 A/0.15 A
L/R <40 ms, at 48/110/220 V dc
PS2/48V
(REF 545 only)
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 24
Technical data (cont’d)
Table 11: Power outputs
Rated voltage
250 V ac/dc
Continuous carry
5A
Make and carry for 0.5 s
30 A
Make and carry for 3 s
15 A
Breaking capacity when control circuit time-constant 5 A/3 A/1 A
L/R <40 ms, at 48/110/220 V dc
Minimum contact load
100 mA, 24 V ac/dc (2.4 VA)
HSPO (High-Speed Power Output)
5 ms faster than a power output (PO)
TCS (Trip Circuit
Supervision)
20…265 V ac/dc
Control voltage range
Current drain through the approx. 1.5 mA (0.99…1.72 mA)
supervision circuit
Minimum voltage
(threshold) over a
contact
20 V ac/dc (15…20 V)
Table 12: Environmental conditions
Specified service temperature range
-10…+55°C
Transport and storage temperature range
-40…+70°C
Enclosure class
Front side, flush-mounted
IP 54
Rear side, connection terminals
IP 20
Note! A rear protective cover
(accessory) can be used to
protect and shield the rear of the
case
Dry heat test
according to IEC 68-2-2
(BS 2011: Part 2.1 B)
Dry cold test
according to IEC 68-2-1
(BS 2011: Part 2.1 A)
Damp heat test cyclic
according to IEC 68-2-30
(BS 2011: Part 2.1 Db),
r.h. = 95%, T = 20°…55°C
Storage temperature tests
according to IEC 68-2-48
Table 13: Standard tests
Insulation tests
Mechanical tests
Dielectric test
(IEC 60-2; BS 932: Part
2 and IEC 255-5; BS
5992: Part 3)
Test voltage
2 kV, 50 Hz, 1 min.
Impulse voltage test
(IEC 255-5)
Test voltage
5 kV, unipolar impulses,
waveform 1,2/50 µs,
source energy 0.5 J
Insulation resistance
measurements
(IEC 255-5)
Insulation resistance
> 100 MΩ, 500 V dc
Vibration tests (sinusoidal)
IEC 255-21-1, class I
Shock and bump test
IEC 255-21-2, class I
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 25
Table 14: Electromagnetic compatibility tests
The EMC immunity test level fulfills the requirements specified in the generic standard EN 50082-2
1 MHz burst disturbance test,
class III (IEC 255-22-1)
common mode
2.5 kV
differential mode
1.0 kV
Electrostatic discharge test, class
III (IEC 61000-4-2)
for contact discharge
6 kV
for air discharge
8 kV
Radio frequency interference test
conducted, common mode
(IEC 61000-4-6)
10 V (rms), f = 150 kHz…80 MHz
radiated, amplitude-modulated
(IEC 61000-4-3)
10 V/m (rms),
f = 80…1000 MHz
radiated, pulse-modulated
(ENV 50204)
10 V/m, f = 900 MHz
radiated, test with a portable
transmitter
(IEC 255-22-3, method C)
f = 77.2 MHz, P = 6 W;
f = 172.25 MHz, P = 5 W
Fast transient disturbance test
(IEC 255-22-4 and IEC 61000-44)
ac/dc ports
4 kV
signal contacts
2 kV
Surge immunity test
(IEC 61000-4-5)
power supply, ac/dc ports
4 kV, common mode
2 kV, differential mode
I/O ports
2 kV, common mode
1 kV, differential mode
conducted RF emission (mains
terminal)
EN 55011, class A
radiated RF emission
EN 55011, class A
Electromagnetic emission tests
(EN 55011 and EN 50081-2)
CE approval
Complies with the EMC directive 89/336/EEC and the LV directive 73/
23/EEC
Table 15: Data communication
Rear interface, connector X3.3
RS485 connection
LON bus or SPA bus, selectable
the fibre-optic interface module RER 103 is needed for galvanic
isolation
data transfer rates
Rear interface, connector X3.2
Front panel
not used, reserved for future purposes
optical RS 232 connection
data code
ASCII
data transfer rates
4.8, 9.6 or 19.2 kbps, selectable
serial communication cable
Serial communication parameters number of data bits
Communication protocols
SPA bus: 4.8/9.6/19.2 kbps
LON bus: 78 kbps/1.2 Mbps
1MKC 9500011
7
number of stop bits
1
parity
even
baud rate
9.6 kbps (default)
SPA-bus protocol
LON bus
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 26
Table 16: General
Ordering
Toolboxes
CAP 501
CAP 505
Event recording
all events are recorded in higher level syntax:
reason, time, date are in clear text format in the
selected language. The last 100 events are
recorded
Data recording
records operate values
Protection functions
see Technical Descriptions of Functions, CD-ROM
(1MRS 750889-MCD)
Control functions
see Technical Descriptions of Functions, CD-ROM
(1MRS 750889-MCD)
Condition monitoring functions
see Technical Descriptions of Functions, CD-ROM
(1MRS 750889-MCD)
Measurement functions
see Technical Descriptions of Functions, CD-ROM
(1MRS 750889-MCD)
Self-supervision
RAMs
ROMs
EEPROMs
all analogue reference voltages
automatic test sequences for I/Os and MMI
output contact wide condition monitoring (all
contacts)
Mechanical dimensions
Width: 223.7 mm (1/2 of a 19” rack)
Height, frame: 265.9 mm (6U)
Height, box: 255.8 mm
Depth: 235 mm (245.1 mm with a protective rear
cover, available as an option)
Weight of the unit
~8 kg
Order data for the REF 54_ feeder terminals
includes an order number that identifies the
feeder terminal type as well as the hardware
and the software as described below.
The order number is labelled on the marking
strip on the front panel of the feeder terminal
delivered.
REF543E 127AAA
Analogue interface type
A: Only matching transformers included (MIM)
B: Sensor inputs and transformers included (MIM and SIM)
Digital input voltage range
A: Ur = 24/48/60/110/220 V dc
Auxiliary voltage range of a power supply module
A: Ur = 110/120/220/240 V ac; 110/125/220 V dc
(PS1/240 V or PS2/240 V)
C: Ur = 24/48/60 V dc (PS1/48 V or PS2/48 V)
Hardware number
Software revision
Feeder terminal type
When ordering, please specify:
Ordering information
Ordering example
1. Order number
REF543E 127-AAA
2. Language(s) to be used on the MMI
English/German
3. Quantity
5 pieces
Typedesf
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 27
Overview of REF hardware
configurations
1MRS090115-AAB/CAB
1MRS090126-AAA/CAA
1MRS090126-AAB/CAB
Transformers
4
4
4
4
Current transformer 0.2/1 A
1
1
1
1
1
1
1
1
1
1
Voltage transformer 100 V
1
1
4
4
1
1
4
4
4
4
Current transformer 1/5 A
4
8
8
8
4
4
8
1MRS090133-AAB/CAB
1MRS090115-AAA/CAA
4
4
Sensor channels (current or voltage)
1MRS090133-AAA/CAA
1MRS090114-AAB/CAB
4
1MRS090113-AAB/CAB
Analogue
interface
REF
545
1MRS090114-AAA/CAA
Order numbers
REF543
1MRS090127-AAB/CAB
REF541
1MRS090127-AAA/CAA
Hardware modules
1MRS090113-AAA/CAA
ABB Substation Automation
Products and Systems
4
4
8
8
Main processor
boards
CPU module
1
1
1
1
1
1
1
1
1
1
1
1
Power supply
boards
Power supply 48 V or 240 V
1
1
1
1
1
1
1
1
1
1
1
1
I/O module, type 1
1
1
1
1
1
1
I/O boards
I/O module, type 2
1
1
1
1
2
2
1
1
1
1
1
1
Display boards
Graphic MMI display
1
1
1
1
1
1
1
1
1
1
1
1
Mechanical
design
1/2 enclosure
1
1
1
1
1
1
1
1
1
1
1
1
Digital inputs
15
25
Power outputs, single-pole
0
2
34
3
Power outputs, double-pole
5
9
11
Signal outputs (NO)
2
2
4
Signal outputs (NO/NC)
5
5
8
Trip circuit supervision
2
2
2
IRF outputs
1
1
1
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 28
Ordering (cont’d)
Hardware configurations of the
REF 541
All the REF 541 hardware versions include
the same number of binary inputs and outputs. The number of matching transformers
and sensor inputs and the auxiliary voltage
range vary between the different REF 541
hardware versions.
The hardware configuration alternatives for
the feeder terminal REF 541 are as follows:
Hardware no.
Matching transformers
Sensor inputs
Auxiliary voltage
1MRS090113-AAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
-
110…240 V ac/dc
1MRS090113-CAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
-
24…60 V dc
1MRS090113-AAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
8 inputs for Rogowski
coil or voltage sensor
110…240 V ac/dc
1MRS090113-CAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
8 inputs for Rogowski
coil or voltage sensor
24…60 V dc
1MRS090114-AAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
-
110…240 V ac/dc
1MRS090114-CAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
-
24…60 V dc
1MRS090114-AAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
8 inputs for Rogowski
coil or voltage sensor
110…240 V ac/dc
1MRS090114-CAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
8 inputs for Rogowski
coil or voltage sensor
24…60 V dc
1MRS090115-AAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
-
110…240 V ac/dc
1MRS090115-CAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
-
24…60 V dc
1MRS090115-AAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
8 inputs for Rogowski
coil or voltage sensor
110…240 V ac/dc
1MRS090115-CAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
8 inputs for Rogowski
coil or voltage sensor
24…60 V dc
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 29
Hardware configurations of the
REF 543
All the REF 543 hardware versions include
the same number of binary inputs and outputs. The number of matching transformers
and sensor inputs and the auxiliary voltage
range vary between the different REF 543
hardware versions.
The hardware configuration alternatives for
the feeder terminal REF 543 are as follows:
Hardware no.
Matching transformers
Sensor inputs
Auxiliary voltage
1MRS090126-AAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
-
110…240 V ac/dc
1MRS090126-CAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
-
24…60 V dc
1MRS090126-AAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
8 inputs for Rogowski
coil or voltage sensor
110…240 V ac/dc
1MRS090126-CAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
8 inputs for Rogowski
coil or voltage sensor
24…60 V dc
1MRS090127-AAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
-
110…240 V ac/dc
1MRS090127-CAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
-
24…60 V dc
1MRS090127-AAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
8 inputs for Rogowski
coil or voltage sensor
110…240 V ac/dc
1MRS090127-CAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
8 inputs for Rogowski
coil or voltage sensor
24…60 V dc
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 30
Ordering (cont’d)
Hardware configurations of the
REF 545
All the REF 545 hardware versions include
the same number of binary inputs and outputs. The number of matching transformers
and sensor inputs and the auxiliary voltage
range vary between the different REF 541
hardware versions.
The hardware configuration alternatives for
the feeder terminal REF 545 are as follows:
Hardware no.
Matching transformers
Sensor inputs
Auxiliary voltage
1MRS090-133AAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
-
110…240 V ac/dc
1MRS090-133CAA
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
-
24…60 V dc
1MRS090-133AAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
8 inputs for Rogowski
coil or voltage sensor
110…240 V ac/dc
1MRS090-133CAB
In=1A/5 A (CT1, CT2, CT3)
In=1 A/5 A (CT4)
In=0.2 A/1 A (CT5)
Un=100/110/115/120 V (VT1)
Un=100/110/115/120 V (VT2,
VT3, VT4)
8 inputs for Rogowski
coil or voltage sensor
24…60 V dc
Software configuration
The desired functionality can be freely activated from comprehensive libraries within
the scope of the processing capacity and the
I/O connections and analogue channels available in the selected hardware variant.
Parts and assembly
descriptions
To achieve the best possible operation accuracy, all parts of a REF 54_ product have
been calibrated together. Thus, each product
forms a whole for which no separate spare
parts can be supplied. In the event of malfunction, please consult your relay supplier.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 31
Application
examples
MF
3I >
50/51
MCS
I0>
50N/51N
TCS
* /62
CBCM
CBFP
000
0
I
R
U
90V
U
R
000
R
000
q
q
p>
3DI >
50/51
CBFP
* /62
3I >
50/51
MCS
51B
TCS
3U >
59
CBCM
CBFP
* /62
000
0
3I >
&
I
R
P
3I
Q
3U
MF
E
M
Fig. 4
M
EXINFDR1
Protection, control, measurement and supervision functions of a utility infeeder, implemented with
REF feeder terminals, an REA arc monitoring system and SPACOM differential relay and voltage
regulator (main single-line diagram presentation). The neutral point of the MV network supplied by
the infeeder is isolated.
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 32
Application examples
(cont’d)
3I >
50/51
MCS
I0>
50N/51N
TCS
* /62
CBCM
MF
CBFP
000
0
I
R
U
3D I >
q
q
p>
90V
U
R
000
R
000
87T
CBFP
* /62
3I >
50/51
MCS
51B
TCS
U0>
59N
CBCM
3U >
59
CBFP
* /62
q
0
3I >
&
I
R
P
Q
MF
000
3I
3U
U0
M
M
I0
E
EXINFDR3
Fig. 5
Protection, control, measurement and supervision functions of a utility infeeder, implemented with
REF feeder terminals, an REA arc monitoring system and SPACOM differential relay and voltage
regulator (main single-line diagram presentation). The neutral point of the MV network supplied by
the infeeder is earthed via the Petersen coil.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 33
M
M
50/51
MCS
67N
TCS
I0-0>
51N
CBCM
3I2f >
68
DI>
46
f<
81U
3I >
000
MF
I0>
0
I
CBFP
0
I
R
P
3I
I0
3U
79
* /62
E
EXFDR1
Fig. 6
An REF feeder terminal used for the protection, control, measurement and supervision functions of
a utility feeder (main single-line diagram presentation). The neutral point of the supplying network
is isolated. The scheme is also fully applicable in high-impedance earthed networks, where the
neutral point is earthed via a high resistance or a Petersen coil.
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 34
Application examples
(cont’d)
3U >
59
MCS
3U <
27
TCS
U0>
59N
f<
81U
000
R
U0
3U
f
3U >
59
MCS
3U <
27
TCS
U0>
59N
f<
81U
000
R
U0
3U
f
EXMEAS1
Fig. 7
REF feeder terminals used for the protection, control, measurement and supervision functions of a
utility/industrial measurement cubicle (main single-line diagram presentation). The neutral point of
the supplying network is isolated. The scheme is also fully applicable in high-impedance earthed
networks, where the neutral point is earthed via a high resistance or a Petersen coil.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 35
MF
3I >
50/51
MCS
I 0>
50N/51N
TCS
U0>
59N
CBCM
CBFP
* /62
000
0
I
R
U
3D I >
q
q
p>
MF
U
R
000
R
000
87T
CBFP
* /62
3I >
50/51
MCS
51B
TCS
67
CBCM
3I>
MF
90V
I0>
50N/51N
SYNC
25
3U >
59
CBFP
* /62
000
0
3I >
&
I
R
P
3I
Q
3U
I0
E
EXINFDR4
Fig. 8
Protection, control, measurement and supervision functions of a utility/industrial infeeder, implemented with REF feeder terminals, an REA arc monitoring system and SPACOM differential relay
and voltage regulator (main single-line diagram presentation). The neutral point of the MV network
supplied by the infeeder is earthed via a high resistance.
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 36
Application examples
(cont’d)
MF
3I>
67
MCS
I0>
67N
TCS
3
49F
CBCM
SYNC
25
f<
81U
3U >
59
3U <
27
CBFP
* /62
000
0
I
R
P
3I
Q
3U
pf
f
E
EXFDR3
3I >
&
Fig. 9
An REF feeder terminal and an REA arc monitoring system (main single-line diagram presentation) used for the protection, control, measurement and supervision functions of a utility/industrial
ring/meshed network cable feeder. The earthing of the supplying network can be of low or high
impedance type.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 37
50/51
MCS
50N/51N
TCS
3I2f>
68
CBCM
DI>
46
CBFP
* /62
3I >
000
MF
I0>
0
I
R
P
3I
E
3U
EXFDR4
Fig. 10
An REF feeder terminal used for the protection, control, measurement and supervision functions of
a utility/light industrial cable feeder (main single line diagram presentation). The earthing of the
supplying network can be of low or high impedance type.
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 38
Application examples
(cont’d)
MF
3I >
50/51
MCS
I0>
50N/51N
TCS
I02f>
68
CBCM
CBFP
* /62
000
0
I
R
U
90V
U
q
q
R
000
R
000
p>
87T
DI0>
87N
DI0>
87N
CBFP
* /62
67
MCS
I0>
50N/51N
TCS
SEF
51N
CBCM
3U >
59
3U <
27
f<
50N/51N
CBFP
* /62
3I>
MF
3D I >
000
0
3I >
&
I
R
P
3I
pf
3U
f
E
EXINFDR2
Fig. 11
Protection, control, measurement and supervision functions of a utility infeeder, implemented with
REF feeder terminals, an REA arc monitoring system and SPACOM differential relay and voltage
regulator (main single-line diagram presentation). The neutral point of the MV network supplied by
the infeeder is earthed via a low resistance. The scheme is also fully applicable to other types of
low-impedance earthed networks, where the neutral point is earthed effectively or via a low reactance.
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 39
3I >
50/51
MCS
I0>
50N/51N
TCS
SEF
51N
CBCM
3I2f>
68
DI>
46
f<
81U
000
MF
0
I
CBFP
0
I
R
P
3I
E
3U
79
* /62
EXFDR2
Fig. 12
An REF feeder terminal used for the protection, control, measurement and supervision functions of
a utility feeder (main single-line diagram presentation). The neutral point of the supplying network
is earthed via a low resistance. The scheme is also fully applicable to other types of low-impedance earthed networks, where the neutral point is earthed effectively or via a low reactance.
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 40
Application examples
(cont’d)
3I >
50/51
= multiple-stage three-phase overcurrent protection, low-set, high-set and instantaneous
stage available
3I>
67
= multiple-stage three-phase directional overcurrent protection, low-set, high-set and
instantaneous stage available
I0>
67N
= multiple-stage directional earth-fault protection, low-set, high-set and instantaneous
stage available
I0-0>
51N
= instantaneous stage for earth-fault protection, to operate in the event of a double earth
fault in isolated or impedance earthed networks
I0>
50N/51N
SEF
51N
3I >
50/51
= multiple-stage earth-fault protection, low-set, high-set and instantaneous stage
available
= low-set stage for sensitive earth-fault protection, to operate in the event of a high
resistive earth fault in effectively or low-impedance earthed networks
= multiple-stage three-phase overcurrent protection, one stage dedicated for blockable
busbar overcurrent protection
51B
3U >
59
= three-phase overvoltage protection, low-set and high-set stage available
3U <
27
= three-phase undervoltage protection, low-set and high-set stage available
U0>
59N
= multiple-stage residual overvoltage protection, low-set, high-set and instantaneous
stage available
3I2f >
68
= inrush detection based on the 2nd harmonic content of phase currents, applied for
preventing possible unnecessary operation of overcurrent or earth-fault protection
during transformer switching-in or to start cold load pick-up logic
DI>
46
= phase discontinuity protection
f<
81U
= underfrequency protection/load shedding scheme
3
49F
= thermal overload protection for feeders
I
79
= multiple-shot auto-recloser
SYNC
25
= circuit breaker synchro-check/direction of energizing check function
0
3D I >
87T
= differential protection for transformers
DI0>
87N
= restricted earth-fault protection, low- or high-impedance type
I02f>
CBFP
Fig. 13
68
= inrush detection based on the 2nd harmonic content of neutral current, applied to
prevent possible unnecessary operation of the earth-fault protection during transformer
switching-in
* /62
= circuit-breaker failure protection
Symbol notations, part I
SYMNOT1
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 41
3I >
&
= arc protection
MCS
= measuring circuit supervision
TCS
= trip circuit supervision
CBCM
= circuit-breaker condition monitoring
90V
U
= automatic voltage regulation
= manual voltage regulation
U
= active power measurement, indication and supervision
P
= reactive power measurement, indication and supervision
Q
= 3-phase current measurement, indication and supervision
3I
= 3-phase voltage or phase-to-phase voltage measurement, indication
and supervision
3U
= frequency measurement, indication and supervision
f
= power factor measurement, indication and supervision
pf
= residual current measurement, indication and supervision
I0
= residual voltage measurement, indication and supervision
U0
= energy counter, forward or reverse active / reactive energy
E
= annunciating, event generating and value recording functions
R
= disturbance recorder
000
= digital value indication
000
0
= MMI/MIMIC display
I
= local and remote control interface
= bay-oriented interlocking logic
Fig. 14
Symbol notations, part II
SYMNOT2
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 42
Application examples
(cont’d)
Application selection tables for
REF 541, REF 543 and REF 545
functions
Table 17: Protection functions
Types of fault
IEEE Device No.
IEC Symbol
Protection function
Function block code
Short circuits
51
3I >
Non-directional
overcurrent, low-set
stage
NOC3Low
50 / 51
3I >>
Non-directional
overcurrent, high-set
stage
NOC3High
50 / 51B
3I >>>/
Non-directional
overcurrent,
instantaneous stage
NOC3Inst
67
3I> →
Three-phase directional
o/c, low-set stage
DOC6Low
67
3I>> →
Three-phase directional
o/c, high-set stage
DOC6High
67
3I>>> →
Three-phase directional
o/c, high-set stage
DOC6Inst
51N
Io > / SEF
Non-directional earthfault, low-set stage
NEF1Low
50N / 51N
Io >>
Non-directional earthfault, high-set stage
NEF1High
50N
Io>>> / Io-o > Non-directional earthNEF1Inst
fault, instantaneous stage
67N / 51N
Io> → / SEF
Directional earth-fault,
low-set stage
DEF2Low
67N
Io>> →
Directional earth-fault,
high-set stage
DEF2High
67N
Io>>> →
Directional earth-fault,
instantaneous stage
DEF2Inst
59N
Uo>
Residual overvoltage,
low-set stage
ROV1Low
59N
Uo>>
Residual overvoltage,
high-set stage
ROV1High
59N
Uo>>>
Residual overvoltage,
instantaneous stage
ROV1Inst
Overload
49F
3
Three-phase thermal
overload
(feeders & cables)
TOL3Cab
Overvoltage/
undervoltage
59
3U >
Three-phase
overvoltage, low-set
stage
OV3Low
59
3U >>
Three-phase
overvoltage, high-set
stage
OV3High
27
3U<
Three-phase
undervoltage, low-set
stage
UV3Low
27
3U<<
Three-phase
undervoltage, high-set
stage
UV3High
Earth faults
ABB Substation Automation
Products and Systems
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 43
Table 17: Protection functions
Load shedding and
restoration
81
f<, f>
Underfrequency or
overfrequency, stage 1
Freq1St1
81
f<, f>
Underfrequency or
overfrequency, stage 2
Freq1St2
81
f<, f>
Underfrequency or
overfrequency, stage 3
Freq1St3
81
f<, f>
Underfrequency or
overfrequency, stage 4
Freq1St4
81
f<, f>
Underfrequency or
overfrequency, stage 5
Freq1St5
Additional functions 79
O→I
Auto-reclosure
AR5Func
25
SYNC
Synchro-check/voltage
check, stage 1
SCVCSt1
25
SYNC
Synchro-check/voltage
check, stage 2
SCVCSt2
68
3I2f >
Three-phase inrush
detector
Inrush3
46
∆I>
Phase discontinuity
CUB3Low
Table 18: Measurement functions
Types of measurement
IEC Symbol
Measurement function
Function block code
Current
3I
Three-phase current
MECU3A
Io
Neutral current
MECU1A
Io
Neutral current (LV side)
MECU1B
3U
Three-phase voltage
MEVO3A
Voltage
Uo
Residual voltage
MEVO1A
Energy / Power
E / P / Q / pf
Three-phase power and
energy (incl. cos ϕ)
MEPE7
Frequency
f
System frequency
MEFR1
Transient disturbance
recorder
MEDREC16
Recording
Table 19: Condition monitoring functions
Types of condition
monitoring
Cicuit breaker
Trip circuit
Measuring circuit
Symbol
Condition monitoring
function
Function block code
CBCM
CB electric wear 1
CMBWEAR1
CBCM
CB electric wear 2
CMBWEAR2
CBCM
Operation Time Counter
1 (e.g. motors)
CMTIME1
CBCM
Operation Time Counter
2 (e.g. motors)
CMTIME2
CBCM
Gas density
CMGAS1
CBCM
Spring charging control 1 CMSPRC1
CBCM
Breaker travel time 1
CMTRAV1
CBCM
Scheduled maintenance
CMSCHED
TCS
Trip Circuit Supervision 1 CMTCS1
TCS
Trip Circuit Supervision 2 CMTCS2
MCS
Supervision of the
energizing current input
circuit
CMCU3
MCS
Supervision of the
energizing voltage input
circuit
CMVO3
ABB Network Partner
Feeder terminal
REF 541, 543 and 545
1MRS 750443-MBG
Page 44
Table 20: Control functions
Types of control
Cicuit breaker
Symbol
0↔ 1
0↔ 1
0↔ 1
Disconnector
0↔ 1
0↔ 1
0↔ 1
Other control functions
Types of control
References
Symbol
Control function
Function block code
Circuit breaker 1 (2 state COCB1
inputs / 2 control outputs)
Circuit breaker 2 (2 state COCB2
inputs / 2 control outputs)
Direct open for CBs via
MMI
COCBDIR
Disconnector 1...5
(2 state inputs / 2 control
outputs)
CODC1...CODC5
Three-state disconnector CO3DC1
(1) with indication
Three-state disconnector CO3DC2
(2) with indication
Object indication 1...8
(2 state inputs)
COIND1...COIND8
On/off switch 1...4
(1 output)
COSW1...COSW4
Logic control position
selector
COLOCAT
MIMIC dynamic data
point 1...5
MMIDATA1...MMIDATA5
Alarm 1...8
(MMI, remote)
MMIALAR1...MMIALAR8
Control function
Function block code
Additional information
Technical Reference Manual
1MRS 750527-MUM
Technical Descriptions of Functions
1MRS 750889-MCD (CD-ROM only)
Installation Manual
1MRS 750526-MUM
Operator’s Manual
1MRS 750500-MUM
Technical Reference Manual RER 103
1MRS 750532-MUM
Configuration Guideline
1MRS 750745-MUM
Echelon, LON and LonTalk are registered trademarks of Echelon Corporation.
All other product names or brands are trademarks, registered trademarks, or service marks of their respective owners.
ABB Substation Automation Oy
P.O. Box 699
FIN-65101 Vaasa
Finland
Telephone: +358 10 224 000
Fax: +358 10 224 1094
Internet: http://www.abb.fi