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what is the difference between 5P20 class CT , PS Class CT
and 5P10 class CT??
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Answer Posted / veera
in 5p20 5 is 5% of the 20times of the primary current(i.e)
in case 100/1A CT 20*100=2000A 5% is 100A ERROR AT 2000A
fault cuurent for instantaneous trip this error is
negligible
| Is This Answer Correct ? | 67 Yes | 19 No |
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