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class x current transformer

class x current transformer

class x current transformer

(OP)
hi
could any one gives me any informations (or any link ) on how to design a class x current transformer .
 thanks

RE: class x current transformer

Do you mean how to design/manufacture one or how to specify one?

There have been a few discussions on this board on Class X CTs, so you start your search here.

RE: class x current transformer

(OP)
dear scottf
i have read the few discussions about class-x ct.
i have design and manufacture a few types of CTs of class P & M , but not any one of class x.I need to upgrade my practical knowledge in this field
thank you very much for your kind attention.

RE: class x current transformer

Ok....if you're experienced designing CTs, then Class X is about the easiest you can find.

For Class X, the user defines the ratio, Vkp>?, Iexc<?, and Rct<?. If you use normal Silicium steel core material, design it such that the knee-point voltage meets the specification (the Iexc will normally fall in as well), and then size the secondary wire to meet the Rct limit.

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