ABB REC 561 - Energizing in both Directions (DLLB or DBLL); Test of Voltage Selection

Synchronism and energizing
check for single circuit breaker
with voltage selection
ABB Network Partner AB
1MRK 580 152-XEN
Page 5 - 27
Version 1.0-00
4.3.3 Energizing in both
directions (DLLB or
DBLL)
1 Change the MMI settings AutoEnerg and ManEnerg to Both.
2 Apply a single-phase voltage of 30% U
r
/sqr3 to the U-line (UL1) and
a single-phase voltage of 100% U
r
/sqr3 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% U
r
/
sqr3
and the U-bus (U5) is equal to 30% U
r
/sqr3.
5 The outputs should still be activated.
6 The test can be repeated with different values on the U-bus and the U-
line.
7 Restore the equipment to normal or desired settings.
4.3.4 Test of voltage
selection
This test should verify that the correct voltage is selected for the measure-
ment in the energizing function used in a double-bus arrangement. Apply
a single-phase voltage of 30% U
r
/sqr3 to the U-line (UL1) and a single-
phase voltage of 100% U
r
/sqr3 to the U-bus (U5).
If the SYN1-UB1/2OK inputs for the fuse failure are used, normally they
must be activated, thus activated and deactivated must be inverted in the
description of tests below.
1 Set these MMI settings:
Parameter Setting
Operation On
InputPhase UL1
USelection DbleB
AutoEnerg Both
ManEnerg Both
UHigh 80%
U
r
/sqr3
ULow 40% U
r
/sqr3
FreqDiff 0,05 Hz
PhaseDiff 45°
UDiff 15%
tAutoEnerg 0.5 s
tManEnerg 0.5 s