1MRK 511 209-UEN -
5.3.10.2
5.3.11
5.3.11.1
REC650
Commissioning Manual
1.
Check that the input logical signal BLOCK to the function block BRCPTOC
is logical zero and note on the local HMI that the output signal TRIP from the
function block BRCPTOC 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 the BRCPTOC
protection.
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.
8.
Set the measured current (fault current) in same phase to about 90% of the set
operating current IP>. Switch off the current.
9.
Switch on the fault current and wait longer than the set value tOper.
No TRIP signal should appear.
10. Switch off the fault current.
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/1:TESTMODE. If
another function is tested, then set the parameter Blocked to No, under Main menu/
Tests/Function test modes/<Function group>/<Function>/<1:Function> 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.
Directional under-power protection GUPPDUP
Prepare the IED for verification of settings as outlined in
verify
settings".
Values of the logical signals are available on the local HMI under: Main menu/
Tests/Function status/<Function group>/<Function>/<1:Function>. The Signal
monitoring tool in PCM600 shows the same signals that are available on the LHMI.
Verifying the settings
The under-power protection shall be set to values according to the real set values to
be used.
The test is made by means of injection of voltage and current where the amplitude
of both current and voltage and the phase angle between the voltage and current
Section 5
Testing functionality
4.1 "Preparing the IED to
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