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1MRK 505 293-UEN B
7.3.4.2
Completing the test
Continue to test another function or end the testing by setting the parameter
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter
OC4SPTOC(51_67,4I>)/OC4SPTOC:1 for the function, or for each individual function in a chain,
to be tested next. Remember to set the parameter
that has been tested.
7.3.5
Instantaneous residual overcurrent protection EFPIOC
Prepare the IED for verification of settings as outlined in section
settings".
Values of the logical signals for EFPIOC are available on the local HMI under Main menu/Tests/
Function status/Current/EFPIOC(50N,IN>>)/EFPIOC: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.
7.3.5.1
Measuring the operate limit of set values
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 or in the neutral (summated current input) phase
until the TRIP 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.
7.3.5.2
Completing the test
Continue to test another function or end the testing by setting the parameter
under Main menu/Tests/IED test mode/TESTMODE:1. If another function is tested, then set
the parameter
EFPIOC(50N,IN>>)/EFPIOC:1 for the function, or for each individual function in a chain, to be
tested next. Remember to set the parameter
has been tested.
7.3.6
Four step residual overcurrent protection, zero or negative
sequence direction EF4PTOC
Breaker protection REQ650
Commissioning manual
Check of the non-directional phase over-current function. This is done in
principle as instructed above, without applying any polarizing voltage.
Blocked to No under Main menu/Tests/Function test modes/Current/
Blocked to No under Main menu/Tests/Function test modes/Current/
© Copyright 2013 ABB. All rights reserved
Blocked to Yes , for each individual function
"Preparing the IED to verify
Blocked to Yes , for each individual function that
Section 7
Testing functionality
GUID-6A3E1570-380E-4645-B421-E015102E061F v1
TestMode to Off
SEMOD52967-3 v6.1.1
SEMOD52967-11 v5
SEMOD52967-24 v5
TestMode to Off
SEMOD53296-3 v7.1.1
47
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