Answer / m.gopinath

Earth fault protection is non-unit protection for earth
faults where as restricted earth fault protection is a unit
protection (ie differential protection of Y connected
alternator/transformer) for earth faults. So we can say the
Restricted earth fault protection is differential
protection of a y connected winding for earth faults only
but not for phase-to-phase faults.

we want to feed 3 phase supply to 70 ton AC load.what will be the size of (3 phase)cable require.

2 Answers   BSES,

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I am gokul. i finished B.E(EEE). I have 2 years experience in maintenance. But now i have not job, so i am searching. i want any effective courses in Electrical field with related to job and good salary. any one will help to me. please tell?

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what is the meaning of electrical maintenance?

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