Answer / k.prakashchandra

Large gens have field as rotor and field supply is given
with the help of collector rings (slip ring) and carbon
brushes from shaft mounted DC exciter or external excitation
panel .In case of brushless, DC excitation supply is given
directly from shaft mounted armature of the AC exciter
through the rectifiers.Its field is controlled from outside.

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what is the multi strand cable size? 0.45mm is area of one strand & 370nos of strand.

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what kinds of Transformer oil grade is better for power transformer ?

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what is different between 51N and 51G functions relay?

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