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What is the difference between Class PX & Class X CT's

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What is the difference between Class PX & Class X CT's..

Answer / peterhann

No difference. Class X is the old BS naming and Class PX the IEC name.

Is This Answer Correct ?    2 Yes 0 No

What is the difference between Class PX & Class X CT's..

Answer / k.prakashchandra

The performance of 'X-class' Ct is defined by Vkp,
magnetizing current at Vkp and resistance of secondary.It is
used in balanced protection system which is sensitively
dependent on CT accuracy.Vkp is an important parameter for
PX class CT and it is used for earth fault protection.

Is This Answer Correct ?    7 Yes 24 No

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