in 50 mw generator if field is open in full load running condition what happen

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in 50 mw generator if field is open in full load running
condition what happen and for protection which relay used?

Question Posted / anil_636

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in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / abid ali khattak

Usually we are using a loss of excitation rely. Which
always getting a sense from the field excitation circuit
continueslly during the runing condition of Generator.

Is This Answer Correct ?

9 Yes

0 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / a1

I is depend on type of operation-

1) If parrallel with grid/Other generator, than it will
draw reactive power from the Grid/Generator and give active
power to the load. It will work as a Induction Generator.
Reactive power of connected circuit will unbalance.

2) If Generator is running island mode(without any other
source), than terminal voltage of genertor will start to
decrease and current will start to increase. Winding temp.
of Generator and drives will increase.

Under excitation relay provide for this.

Is This Answer Correct ?

4 Yes

1 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / deepak

it run as induction gen & draw excitation power from grid

Is This Answer Correct ?

5 Yes

3 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / k.prakashchandra

Loss of excitation relay (LOE)

Is This Answer Correct ?

0 Yes

0 No

in 50 mw generator if field is open in full load running condition what happen and for protection..

Answer / prodip das

It acts as a load, Sensing relay of excitation voltage

Is This Answer Correct ?

0 Yes

2 No

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