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definition

definition

definition

(OP)
what does 5 and 10 imply in the 5p10 ct

RE: definition

5p10 CT
rating indicates accuracy limit factor of CT
P indicates CT should used for protection purpose (i.e. for feeding protective relays.
digits 5 & 10 indicate -- error in secondary o/p will within 5 % evenif current flowing through primary is 10 times rated current

hopr this will satisfy your requiremenrt.

RE: definition


 For more information you can read:

 - IEEE Std C57.13 (IEEE Standard Requirements for instrument Transformers)

 - IEEE Std 242 (IEEE Recomended practice for protection and coordination of industrial and comercial power systems)

 Good luck!

RE: definition

Suggestion: 5p10 ct is not ANSI/IEEE categorization of CTs. Check UK and Europe.

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