Answer Posted / hardik bhesaniya

Corona is a effect of Extra High Voltage either due to switching over voltage or sue to lightning over voltage. The role of the corona ring is to distribute the electric field gradient and lower its maximum values below the corona threshold, preventing corona discharge.

we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

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which protection used in power plant?

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Electronic circuit

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Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.

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