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Dead bus
The possibility of closing the circuit breaker even though the busbar voltage is missing.
There is an extra adjustment, U
facility makes dead bus synchronising possible, even though there is noise on the
busbar. The regulating range is off or 10...40% of U
Setting
Dead bus function U
OFF
Deactivated
10
Activated within the range 15-25% of actual generator voltage > 70%
20
Activated within the range 25-30% of actual generator voltage > 70%
30
Activated within the range 30-40% of actual generator voltage > 70%
40
Activated within the range 40-50% of actual generator voltage > 70%
Please notice that this setting is a coarse step regulation for suppression of possible
noise on the busbar. The scale 10-20-30-40 should therefore be considered more as a
4 level noise suppression than as an accurate measuring setting.
Please notice that when the voltage on the net has been restored, the CSQ-3 will
remain in the dead bus function for a period of 5 seconds.
User manual, Check synchroscope CSQ-3
, where the level of dead busbar can be set. This
BUS
BUS
in steps of 10%.
N
4189340263L (UK)
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