Check of the non-directional phase over-current function. This is done
in principle as instructed above, without applying any polarizing voltage.
6.4.4.2
Completing the test
Continue to test another function or end the testing by setting the parameter
TestMode
to
Disabled
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/Current/OC4SPTOC(51_67,4I>)/1:OC4SPTOC
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.
6.4.5
Instantaneous residual overcurrent protection EFPIOC (50N)
Prepare the IED for verification of settings as outlined in
Values of the logical signals for EFPIOC (50N) are available on the local HMI under
Main menu/Tests/Function status/Current/EFPIOC(50N,IN>>)/1:EFPIOC
. 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-ground 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.
6.4.5.1
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.
Disable the fault current
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.
Section 6
1MRK 506 331-UUS A
Testing functionality
66
Commissioning Manual
Содержание Relion 650 Series REL650
Страница 1: ...Relion 650 series Line distance protection REL650 ANSI Commissioning Manual ...
Страница 2: ......
Страница 8: ......
Страница 22: ...14 ...
Страница 44: ...36 ...
Страница 52: ...44 ...
Страница 156: ...148 ...
Страница 166: ...158 ...
Страница 175: ...167 ...