Ensure that the maximum continuous current, supplied from the current source used for the
test of the IED, does not exceed four times the rated current value of the IED.
7.3.1.1
Measuring the operate limit of set values
M11754-11 v4
1.
Inject a phase current into the IED with an initial value below that of the setting.
2.
Increase the injected current until the TRIP signal appears.
3.
Switch the fault current off.
Observe: Do not exceed the maximum permitted overloading of the
current circuits in the IED.
4.
Compare the measured operating current with the set value.
7.3.1.2
Completing the test
M11754-24 v5
Continue to test another function or end the testing by setting the parameter
TestMode to Off
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter
Blocked to No under Main menu/Tests/Function test modes/Current/
PHPIOC(50,I>>)/PHPIOC:1 for the function, or for each individual function in a chain, to be
tested next. Remember to set the parameter
Blocked to Yes, for each individual function that
has been tested.
7.3.2
Instantaneous phase overcurrent protection phase segregated
output SPTPIOC
GUID-43A00513-EBAB-4E56-A3E8-72B8F74AB9D5 v2.1.1
Prepare the IED for verification of settings as outlined in section
Values of the logical signals for SPTPIOC are available on the local HMI under Main menu/
Tests/Function status/Current/SPTPIOC(50,I>>)/SPTPIOC:1. The Signal Monitoring in
PCM600 shows the same signals that are available on the local HMI.
To verify the settings the following fault type should be tested:
•
Phase-to-earth fault
Ensure that the maximum continuous current, supplied from the current source used for the
test of the IED, does not exceed four times the rated current value of the IED.
1.
Inject a phase current into the IED with an initial value below that of the setting.
2.
Increase the injected current in the Ln phase until the TRLn (n=1-3) signal appears.
3.
Switch the fault current off. Observe to not exceed the maximum permitted overloading
of the current circuits in the IED.
4. Compare the measured operating current with the set value.
7.3.2.1
Completing the test
GUID-981460F9-16EA-48E3-B81C-7768DAB8D093 v1
Continue to test another function or end the testing by setting the parameter
TestMode to Off
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter
Blocked to No under Main menu/Tests/Function test modes/Current/
SPTPIOC(50,I>>)/SPTPIOC:1 for the function, or for each individual function in a chain, to be
Section 7
1MRK 505 293-UEN B
Testing functionality
44
Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved
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