Answer / vino raju

it used for special protection.such as current check gaurd
relay, pilot wire protection relay..etc

Answer / ghani

It is defined by BS standards and now being included in IEC
as well. The accuracy limit factor in class X is defined by
manufacture with details of Knee point voltage limit, CT
resistance. So the X class mostly being used for
differential protection and also can be used for metering
purpose.

hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?

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