ABB REG670 Commissioning Manual page 231

Generator protection version 2.2 iec
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1MRK 502 073-UEN Rev. J
1.
Verify the settings AutoEnerg or ManEnerg to be DBLL.
2.
Apply a single-phase voltage of 30% GblBaseSelBus to the U-Bus and a single-phase voltage
of 100% GblBaseSelLine to the U-Line.
3.
Check that the AUTOENOK and MANENOK outputs are activated after set tAutoEnerg
respectively tManEnerg.
4.
Decrease the U-Line to 60% GblBaseSelLine and keep the U-Bus equal to 30%
GblBaseSelBus. The outputs should not be activated.
5.
The test can be repeated with different values on the U-Bus and the U-Line.
Testing both directions (DLLB or DBLL)
1.
Verify the local HMI settings AutoEnerg or ManEnerg to be Both.
2.
Apply a single-phase voltage of 30% GblBaseSelLine to the U-Line and a single-phase voltage
of 100% GblBaseSelBus to the U-Bus.
3.
Check that the AUTOENOK and MANENOK outputs are activated after set tAutoEnerg
respectively tManEnerg.
4.
Change the connection so that the U-Line is equal to100% GblBaseSelLine and the U-Bus is
equal to 30% GblBaseSelBus. The outputs should still be activated.
5.
The test can be repeated with different values on the U-Bus and the U-Line.
Testing the dead bus dead line (DBDL)
The test should verify that the energizing check function operates for a low voltage on both the U-Bus
and the U-Line, that is, closing of the breaker in a non-energized system. Test is valid only when this
function is used.
1.
Verify the local HMI setting AutoEnerg to be Off and ManEnerg to be DBLL.
2.
Set the parameter ManEnergDBDL to On.
3.
Apply a single-phase voltage of 30% GblBaseSelBus to the U-Bus and a single-phase voltage
of 30% GblBaseSelLine to the U-Line.
4.
Check that the MANENOK output is activated after set tManEnerg.
5.
Increase the U-Bus to 80% GblBaseSelBus and keep the U-Line equal to 30%
GblBaseSelLine. The outputs should not be activated.
6.
Repeat the test with ManEnerg set to DLLB with different values on the U-Bus and the U-Line
voltage.
13.10.1.4
Testing the voltage selection
Testing the voltage selection for single CB arrangements
This test should verify that the correct voltage is selected for the measurement in the SESRSYN
function used in a double-bus arrangement. Apply a single-phase voltage of 100% GblBaseSelLine
to the U-Line and a single-phase voltage of 100% GblBaseSelBus to the U-Bus.
If the UB1/2OK inputs for the fuse failure are used, they must be activated, during tests below. Also
verify that deactivation prevents operation and gives an alarm.
1.
Connect the signals above to binary inputs and binary outputs.
2.
Connect the voltage inputs to the analog inputs used for each bus or line depending of the type
of busbar arrangement and verify that correct output signals are generated.
Testing the voltage selection for double breaker
This test should verify that correct voltage is selected for the measurement in the SESRSYN function
used for a diameter in a One-and-a-half breaker arrangement. Apply a single-phase voltage of 100%
GblBaseSelLine to the U-Line and a single-phase voltage of 100% GblBaseSelBus to the U-Bus.
Verify that correct output signals are generated.
Generator protection REG670
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Section 13
Testing functionality by secondary injection
M2377-306 v7
M2377-323 v8
M2377-342 v2
M2377-473 v7
M2377-691 v6
225

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