ABB REC 561 User Manual page 220

ABB Network Partner AB
Version 1.0-00
Synchronism and energizing
check for double circuit breakers
and voltage selection
These voltage inputs are used:
U-line UL1, UL2 or UL3 voltage input on the terminal.
U-bus U5 voltage input on the terminal
These MMI settings can be used during the test if the final setting is not
determined:
1 Set these MMI settings, which are found under:
Settings
Functions
Group n
SynchroCheck1
Parameter
Operation
InputPhase
USelection
AutoEnerg
ManEnerg
UHigh
ULow
FreqDiff
PhaseDiff
UDiff
tAutoEnerg
tManEnerg
2 Test with UDiff = 0%
• Apply voltages U-line (UL1) = 80% U
U /sqr3.
r
• Check that the SYN1-AUTOOK and SYN1-MANOK outputs are
activated.
• The test can be repeated with different voltage values to verify that
the function operates within UDiff <30%.
3 Test with UDiff = 40%
• Increase the U-bus (U5) to 120% U
U /sqr3.
r
• Check that the two outputs are not activated.
4 Test with UDiff = 20%, Uline < UHigh
• Decrease the U-line (UL1) to 60% U
equal to 80% U /sqr3.
r
• Check that the two outputs are not activated.
Setting
On
UL1
SingleBus
Off
Off
Ur/sqr3
70%
Ur/sqr3
40%
0.05 Hz
45°
30%
0.5 s
0.5 s
/sqr3 and U-Bus (U5) = 80%
r
/sqr3, and the U-line (UL1) = 80%
r
/sqr3 and the U-bus (U5) to be
r
1MRK 580 167-XEN
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