Synchronous Motor

Interview Question On Relay

1.  State the characteristic features of synchronous motor. Ans:   a.  the motor is not inherently self starting b.   The speed…

7 years ago

Expression For Back E.M.F Or Induced E.M.F. Per Phase In S.M.

Case i) Under excitation, Ebph < Vph . Zs = Ra + j Xs = | Zs |  ?? ? ? = tan-1(Xs/Ra) ERph  ^ Iaph = ?, Ia lags always…

7 years ago

Blondel Diagram ( Constant Power Circle) In Synchronous Motor

The Blondel diagram of a synchronous motor is an extension of a simple phasor diagram of a synchronous motor. For…

7 years ago

Efficiency Of A Transformer

Due to the losses in a transformer, its output power is less than the input power. ∴ Power output =…

7 years ago

Synchronous Condensers

When synchronous motor is over excited it takes leading p.f. current. If synchronous motor is on no load, where load…

7 years ago