Test Of Phase Difference - ABB REC 561 User Manual

1MRK 580 167-XEN
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4.2.2 Test of phase
difference
Synchronism and energizing
check for double circuit breakers
and voltage selection
The phase difference is set at 45° on the MMI, and the test should verify
that operation is achieved when the PhaseDiff (phase difference) is lower
than 45°.
1 Set these MMI settings:
Parameter
Operation
InputPhase
USelection
AutoEnerg
ManEnerg
UHigh
ULow
FreqDiff
PhaseDiff
UDiff
tAutoEnerg
tManEnerg
2 Test with PhaseDiff = 0°
Apply voltages U-line (UL1) = 100% U
U /sqr3, with a phase difference equal to 0° and a frequency differ-
r
ence that is lower than 50 mHz.
Check that the SYN1-AUTOOK and SYN1-MANOK outputs are
activated.
3 The test can be repeated with other PhaseDiff values to verify that the
function operates for values lower than the set ones. By changing the
phase angle on U1 connected to U-bus, between +/- 45°. You can
check that the two outputs are activated for a PhaseDiff lower than
45°. It should not operate for other values. See Fig. 9.
No operation
Fig. 9

Test of phase difference

ABB Network Partner AB
Setting
On
UL1
SingleBus
Off
Off
Ur/sqr3
70%
Ur/sqr3
40%
0,05 Hz
45°
15%
0.5 s
0.5 s
/sqr3 and U-bus (U5) = 100%
r
U-Bus
o
+45
o
-45
U-Bus
Version 1.0-00
U-Line operation
(X80167-9)