Capacitive Permanent Integrated Test Adapter CPI - TA
Specification:
The CPI - TA test adapter serves to check the function of the capacitive integrated voltage detecting
system for permanent indication of type CPI VI - 3P. It is built-in a black plastic box. Its connection to
test points of the a.m. indicator is made by one fixed banana plug and a flexible single core cable
terminated with lamellar banana plug. Both lamellar banana plugs have outside diameter of 4 mm. A
red, clearly lit LED diode serves to indicate service voltage in MV system network. Additionally the
adapter secures functional check of the indicator according to Cl. 5.28 of standard IEC 61243-5. The
adapter needs for operation no external power supply and it is practically maintenance free.
Technical Data
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Compliance with requirements for functional check of integrated voltage detecting system (IVDS)
according to IEC 61243-5 (1997) by simulated decrease of service voltage down to 45 % of its
rated value
Presence of service voltage is indicated by red, clearly lit LED diode having diameter of 8 mm
Voltage treshold level:
max. 5 V
Current treshold level:
max. 2,5 μA
Degree of protection:
IP 42 (IP 54, if requested)
Operating temperature:
- 25 °C to + 55 °C
Dimensions (W x H x D):
45 x 66 x 46 mm (inclusive of the fixed outlet)
Weight (approx.):
60 g
For different nominal voltage than 10 to 38 kV and different coupling electrodes than KUVAG type
(i.e. 10 to 20 pF) is neccesary state that in the order or discuss with supplier.
Operating Instructions:
1. Remove plastic cover from test point sockets of the CPI VI - 3P indicator.
2. Insert fixed outlet of the test adapter into socket marked with  till it snaps, the flexible outlet insert
into L1 socket.
3. If the watched equipment is connected to service medium voltage, the red LED diode of the test
adapter shall light up (start flashing). Flashing frequency of LED diode in VDS is decreased at the
same time. If this is not that case, either VDS or MV coupling sensor are faulty - their consecutive
replacement is necessary.
4. Repeat steps described in points 2. and 3. for phase lines L2 and L3. Withdraw the fixed outlet of
test adapter from socket marked with  and disconnect its flexible outlet. Plastic cover put again
on sockets of indicator test points.
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Electronic Phase Comparator EPC
Specification:
The Electronic Phase Comparator EPC is intended for phase comparison of two voltages which are
present at VDS interfaces (LR type, eg. our product CPI VI-3P), that are working with coupling
capacitive sensors at industrial frequency of supply voltage. So it enables an easy and quick
determination of phase balance or unbalance between two MV distribution systems which are
equipped with the a.m. voltage detecting indicators (VDS).
All comparator's circuits use advanced low power electronic components which are mounted on
single printed circuit board. This board incl. supply battery and CINCH sockets are built-in in a black
plastic box. Connection of the comparator to VDS interfaces (test points) is done via flexible
measuring cords which are at comparator side terminated by CINCH connectors and at VDS side by
lamellar banana plugs having diameter of 4 mm.
Sole control element (push button) secures both the comparator functional test and current-saving
operation, because the comparator is battery powered. EPC provides two separate active luminous
signals, which are realized with help of super bright, different coloured (green and red) LED diodes,
to indicate phase „balance“ or „unbalance“. Battery charge check is performed by a flashing, yellow
coloured LED diode. The comparator is designed as a SPC (Special Phase Comparator), as
defined in Cl. 3.23 of standard IEC 61243-5. It does not require practically any maintenance
excepting an occasional battery replacement.
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Technical Data:
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Usage area:
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Length of measuring cords:
Indication of battery charge:
Supply battery:
approx. 6 months
Current consumption:
approx. 12 mA in operation, 0 mA - out of operation
Degree of protection:
IP 54 (with plugged measuring cords)
Operating ambient temperature: - 25 °C to + 55 °C
Dimensions (W x H x D):
65 x 26 x 116 mm (incl. CINCH sockets)
Weight (approx.):
110 g (without battery)
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Input voltage range:
Input voltage frequency:
Indication of phase difference:
As SPC (Special Phase Comparator) for LR type VDS (voltage
indicators) according to IEC 61243-5
0.5 - 5 V (r.m.s. value)
45 - 65 Hz
< 15°(phase balance) - green LED diode, ø 5 mm
> 60° (phase unbalance)
- red LED diode, ø 5 mm
approx. 2.15 m
flashing, yellow coloured LED diode, ø 5 mm
9 V, type IEC 6F22 „Long Life“, service life with normal use
Instructions for Use:
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Take out the EPC from transport case and check, if the battery is inserted (pull off the battery
compartment cover located at bottom box side), resp. install a new battery. Follow correct battery
polarity at the same time. Restore original position of the battery compartment cover.
Take out measuring cords from the case and their ends with mounted CINCH connectors
connect in accordance to comparator's sockets (IN 1 and IN 2).
Press and hold the „TEST“ push button of EPC. The green LED diode (to the left) shall
permanently light up. The yellow LED diode shall not start to flash at the same time. If this diode
is flashing, then it is necessary to perform battery replacement under following instructions given
in Point 1.
Connect banana plugs to sockets of VDS interfaces of MV networks (individual phase voltages)
No. 1 and No. 2 being compared so, that the green banana plug will be always inserted into
socket marked with symbol  „EARTH“ and the other banana plug stepwise into L1 phase
socket being checked (continue then with L2 and event. also L3). If marking is done in
accordance with British Standard, then begin with R and continue with Y or B to compare all
phase voltages.
Press and hold the „TEST“ push button. If the green LED diode is lit permanently, both checked
phase voltages have phase balance. If the red LED diode will be lighting permanently after only
a short flash of the green LED diode, then the tested phase voltages show phase unbalance.
The comparator switches off automatically with push button release.
1:
Both MV distribution systems, where phase comparison should be performed, must be alive
(check by built-in LR voltage detecting indicators of type CPI VI-3P or an equivalent). After
comparator connection to VDS interfaces extinguishes the relevant indicator's LED diode the other two diodes continue with flashing (MV is present).
2:
Check of measuring cords
Either by an usual multimeter (GO - NO GO test) or as follows with observing to the
condition given in Note 1:
Create arrangement according to the a.m. description. Disconnect banana plugs of single
measuring cord from VDS interface before proceed to Point 5. Then press the „TEST“ push
button, upon which the red LED diode shall be permanently lit up - it proves correct
performance of the connected cord. Perform the same procedure with the other cord. If the
green LED diode will be lit up during this check, the tested cord is faulty.
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Maintenance Instructions:
Keep the comparator inclusive of its measuring cords in clean environment (wipe with dry or humid
cloth). Never use for cleaning acid detergents or solvents. Always put the instrument into the
transport case after its usage.
Supply battery check: At least once in 6 months, if faulty, then it shall be replaced.
Perform check of measuring cords in stipulated time intervals.
Long-term storage is possible in dry or temporarily moist rooms having temperatures, which are
within specified operating ambient temperature range, and under putting the comparator inclusive of
measuring cords into the transport case. Battery removal is advisable before storage.
Testing Power Supply TPS 220V
Specification:
The Testing Power Supply (type TPS 220 V) is intended for functional check of the Capacitive Permanent
Integrated Voltage Indicator (VDS according to IEC 61243-5) - KUVAG types CPI VI - 3P, CPI VI - 3P/R, or
CPI VI - 3P/U - if HV is disconnected or before indicator installation. It is built-in in a black plastic box
matched to plug into a mains socket. It is connected to test points of the a.m. indicators by test leads
which are terminated by banana plugs having outside diameter of 4 mm. These banana plugs can be of
standard or safety type. The TPS is powered from mains 230 V/50-60 Hz and is practically maintenancefree.
Technical Data:
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Supply / req. power:
Output voltage (no load):
Internal source impedance:
Resistance to output short-circuit:
Length of test leads:
Degree of protection:
Operating temperature:
Dimensions (W x H x D):
Weight (approx.):
220 V/50-60 Hz / max. 2 VA
22 V
approx. 320 kΩ
continuous
1m
IP 42 (if plugged into mains socket)
- 25 0C to + 55 0C
58 x 75 x 90 mm
160 g (without test leads)
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Instructions for Use:
1. Plug the TPS into mains socket 230 V/50-60 Hz. The indicators installed already have not be
subjected to voltage (HV is disconnected or indicator inputs are not connected).
2. Connect the indicator to be tested to TPS by test leads (green-yellow banana plug push in the
green socket at TPS and in the socket marked with  at indicator, black banana plug then in the
black socket and in the socket marked with symbol L1).
3. Red LED diode for phase L1 of the indicator has to light up (to start flashing). If this is not that
case, then the indicator is defective or a test lead is broken (check integrity of test leads, eg. by
an ohmmeter).
4. Displace black banana plug of the test lead at indicator from socket L1 in socket L2 and check,
whether indicates red LED diode for phase L2 now. Repeat the same procedure for phase L3.
5. Unplug the TPS from mains socket and disconnect test leads both from TPS and indicator tested.
Deposit the TPS and test leads to a protected place.
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