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how it can be decided what will be the rating of CT and PT
to be used in LT or HT cables?
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Answer Posted / dinesh kumar
I decid CT rating acording current and PT acording Voltage.
if current flowing in cable apox 300 amp and my ammeter
rating is 5 amp. than we will use CT rating of 60/1. similr
PT. But we mind that current of cable could be increse any
time thn 60/1 CT will be fail.
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