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220kv/33kv SUBSTATION

M

Thread Starter

manir

we are currently involved in a 220kv/33kv substation in SAIL-IISCO Plant in India. I want to know, is there any difference if we connect a CT before a circuit breaker(CB) or after a CB? please inform us.
 
C

cappowerman

>is there any difference if we connect a CT before a circuit breaker(CB) or after<

Yes. It will definitely make a difference - the zone of protection.
 
K

k b

hello

so i work in energy company transmission of electricity 200kv and 400kv

electric control engineer

i infom you that we install the CT after the CB circuit breaker.

 
P

p.d

There will be always 2 pairs of CT & PT before and after Circuit Breaker; the purpose of CT & PT near transformer side is for "Protection" whereas near the incomer side is for "Metering".
 
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