Answer / murali

thumb rule 1KV we get 1Mohm. if suppose 415V motor we get 0.45Mohm.

Megger is the instrument name. it is insulation resistance value.

Answer / pradyumna171

megger value of any appleance should be 2 multiply with working voltage in kv plus 1 ie a 440 volt motor should have 1.88Mohm (2* .440 +1) , it is the minimum value. And megger voltage should be twice of working voltage of appleance.

how much kn lightning arrestor is used in 11kv line

8 Answers   Power Grid,

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what is the principal of braker

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How can maintain our H.T. motors used in cement plant. please send me procedure.

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What is the universal motor?

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