6.5.5.8
Completing the test
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/CCRBRF(50BF)/CCRBRF: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.
6.5.6
Pole discordance protection CCRPLD
Prepare the IED for verification of settings as outlined in
.
Values of the logical signals for CCRPLD are available on the local HMI under
Main
menu/Tests/Function status/Current/CCRPLD(52PD)/CCRPLD:X
. The Signal
Monitoring in PCM600 shows the same signals that are available on the local HMI.
6.5.6.1
Verifying the settings
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.
6.5.6.2
Completing the test
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.
1MRK 502 049-UEN A
Section 6
Testing functionality
73
Commissioning manual
