Answer / k.prakashchandra

Increase the time delay

Answer / k.prakashchandra

Your setting is 15% of In.While charging ,Tr draws initial
magnetizing current 6 to 15 times the In. Any difference in
measurements by CT s at this current ,may exceed the set
current.Even 1% error in measurement at normal current
becomes 15% of In at initial charging current at 15 times
the In

How to conduct Magnetic Balance Test, Measurement of Excitation Current (both on HV- and LV-side) and vector group on a 1000 KVA distribution transformer. There is a neutral on HV side.

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what is the impedence

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1 Answers  

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