Low-Voltage Power Distribution and Installation Technology
External Neutral Transformer
Thread Starter: Automation_Systems Started: 7/4/2012 8:26 PM Replies: 1
7/4/2012, 8:26 PM
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hi Everybody i hope you can help me.
I have project with Sentrol 3WL Circuit Breaker
but we forget the External Neutral Transformer
3WL9111-0AA21-0AA0
and i have to commissioning between the next weeks and i dont have the external transformer.
I try to get the technical characteristics for the CT, but i dont found anything. But somebody tell me that i can use a 1200A/1A CT for the nuetral, cause is the same as the G transformer specification.
The question is
Can i use another transformer with the 1200A/1A relation for the N conductor connected to the Sentron????
Thanks
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8/9/2012, 11:35 AM
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Joined 2/4/2010
Last visit: 4/26/2013
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Hi,
3WL9111-0AA21-0AA0 is special CT for 3WL including Rogowski coil as sensing element, output signal is 200 mV/kA. Input on the trip unit will not work with 1 A secondary signal of a normal CT.
Sentronix
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