definition

[nsizwa]

what does 5 and 10 imply in the 5p10 ct

 

[jbartos]

Suggestion: Visit

http://www.arwtransformers.co.uk/CTInfo.htm

etc. for more info

 

[sandipsvaid]

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.

 

[Sett]

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!

 

[jbartos]

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

 

[Sett]

Its true jbartos, 5p10 CTs are governed by standard
IEC 60044-1, i was confused.

An excelent papers about this are in:

http://www.ieconsult.fr/ect195.pdf

http://www.ieconsult.fr/ect194.pdf

Best regards.