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12.3.4
12.3.5
116
Synchrocheck and energizing check (SYN)
3.
Check that the SYN1-AUTOOK and SYN1-MANOK outputs are acti-
vated.
4.
Decrease the U-line to 60% U1b and keep the U-bus equal to 30%
U1b.
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.
Change the HMI settings AutoEnerg and ManEnerg to Both.
2.
Apply a single-phase voltage of 30% U1b to the U-line (UL1) and a
single-phase voltage of 100% U1b to the U-bus (U5).
3.
Check that the "SYN1-AUTOOK" and "SYN1-MANOK" outputs are
activated.
4.
Change the connection so that the U-line (UL1) is equal to100% U1b
and the U-bus (U5) is equal to 30% U1b.
The outputs should still be activated.
5.
The test can be repeated with different values on the U-bus and the
U-line.
6.
Restore the equipment to normal or desired settings.
Testing the dead bus dead line (DBDL)
The test should verify that the energizing function operates for a low voltage on both the U-bus
the U-line, i.e closing of the breaker in a non energised system.
1.
Set AutoEnerg to Off and ManEnerg to DBLL.
2.
Set ManDBDL to On.
3.
Apply a single-phase voltage of 30% U1b to the U-bus (U5) and a sin-
gle-phase voltage of 30% U1b to the U-line (UL1).
4.
Check that the SYN1-MANOK output is activated.
5.
Increase the U-bus to 80% U1b and keep the U-line equal to 30% U1b.
The outputs should NOT be activated.
6.
Repeat the test with ManEnerg set to DLLB and Both, and different
values on the U-bus and the U-line.
Chapter 13
Verifying settings by secondary
injection
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