7.3.12.1
Verifying the settings
SEMOD55625-63 v6
1.
When CCRPLD is set for external, set setting
ContSel to On under Main menu/
Settings/IED Settings/Current/CCRPLD/CCRPLD:1 to activate the logic that detects
pole discordance when external pole discordance signaling is used (input EXTPDIND) in
the application configuration.
2.
Activate the input EXTPDIND on CCRPLD function block, and measure the operating time
of CCRPLD.
3.
Compare the measured time with the set value
tTrip.
4.
Reset the EXTPDIND input.
5.
When CCRPLD is set for unsymmetrical current detection with CB monitoring, set setting
CurrSel under Main menu/Settings/IED Settings/Current/CCRPLD/CCRPLD:1 to On.
Use the TRIP signal from the configured binary output to stop the timer.
6.
Repeat point 4 and 5 using OPENCMD instead of CLOSECMD. Set all three currents to
110% of
CurrRelLevel. Activate CLOSECMD.
NO TRIP signal should appear due to symmetrical condition.
7.3.12.2
Completing the test
SEMOD55625-106 v4
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/
CCRPLD(52PD)/CCRPLD:X 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.
7.3.13
Broken conductor check BRCPTOC
SEMOD175021-3 v5.1.1
Prepare the IED for verification of settings as outlined in section
.
Values of the logical signals for BRCPTOC are available on the local HMI under Main menu/
Tests/Function status/Current/BRCPTOC(46,lub)/BRCPTOC:X. The Signal Monitoring in
PCM600 shows the same signals that are available on the local HMI.
7.3.13.1
Measuring the operate and time limit of set values
SEMOD175021-7 v4
1.
Check that the input logical signal BLOCK to the BRCPTOC function block is logical zero
and note on the local HMI that the output signal TRIP from the BRCPTOC function block is
equal to the logical 0.
2.
Set the measured current (fault current) in one phase to about 110% of the set operating
current
IP>.
Observe to not exceed the maximum permitted overloading of the current circuits in the
terminal.
3.
Switch on the fault current and measure the operating time of BRCPTOC.
TRIP is controlled by Gate 13 in the configuration.
Use the TRIP signal from the configured binary output to stop the timer.
4.
Compare the measured time with the set value
tOper.
5.
Activate the BLOCK binary input.
6.
Switch on the fault current (110% of the setting) and wait longer than the set value
tOper.
No TRIP signal should appear.
7.
Switch off the fault current.
Section 7
1MRK 505 293-UEN B
Testing functionality
62
Breaker protection REQ650
Commissioning manual
© Copyright 2013 ABB. All rights reserved
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