choosing protection CT
choosing protection CT
(OP)
Hello!
I wonder if someone can help me with tips/ document about choosing a suitable current transformer for a protection application - short-circuit close to generator - where the load current is 1000A, Ik'' = 30kA and Ipeak = 80kA. I need to choose according to IEC.
Thanks!
Pafi
I wonder if someone can help me with tips/ document about choosing a suitable current transformer for a protection application - short-circuit close to generator - where the load current is 1000A, Ik'' = 30kA and Ipeak = 80kA. I need to choose according to IEC.
Thanks!
Pafi






RE: choosing protection CT
Have a look at some of the references under Power System Protection in FAQ238-1287: What are good references for a Power Engineer?.
Alan
----
"It's always fun to do the impossible." - Walt Disney
RE: choosing protection CT
RE: choosing protection CT
Before few days we had thread on the topic.
Please see attached.
thread238-241062: Current Transformer dimensioning
You must choice CT also according to the relay's mnf. recommendation, for example, for the 87G, 87T protection ( as wrote Alan and Raghun).
Best Regards.
Slava
RE: choosing protection CT
I would recommend ABB's document too:
http
RE: choosing protection CT
thanks, I found what I was looking for.
pafi