Energizing In Both Directions (Dllb Or Dbll); Test Of Voltage Selection - ABB REC 561 User Manual

ABB Network Partner AB
Version 1.0-00
4.3.3 Energizing in both
directions (DLLB or
DBLL)
4.3.4 Test of voltage
selection
Synchronism and energizing
check for single circuit breaker
with voltage selection
1 Change the MMI settings AutoEnerg and ManEnerg to Both.
2 Apply a single-phase voltage of 30% U
a single-phase voltage of 100% U
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
sqr3 and the U-bus (U5) is equal to 30% U
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.
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
phase voltage of 100% U
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
Operation
InputPhase
USelection
AutoEnerg
ManEnerg
UHigh
ULow
FreqDiff
PhaseDiff
UDiff
tAutoEnerg
tManEnerg
/sqr3 to the U-line (UL1) and
r
/sqr3 to the U-bus (U5).
r
/sqr3.
r
/sqr3 to the U-line (UL1) and a single-
r
/sqr3 to the U-bus (U5).
r
Setting
On
UL1
DbleB
Both
Both
80% U /sqr3
r
40% U /sqr3
r
0,05 Hz
45°
15%
0.5 s
0.5 s
1MRK 580 152-XEN
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r