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Answer Posted / sudheer
suppose one 11KV DG is running, when we start the DG it
will make only 600 to 700v only, because that time the AVR
is not connected in the circuit, when we switch on the
AVR , the AVR gives the supply to exciter assyembly and the
rotor of alternator gets more exciting current and this
rotor current cuts more flux and the main voltage
increases , when it reaches to 11000v , the AVR sense the
11 kv and it minimised the supply voltage to exciter.
so we can say that when AVR fails, the generator will not
make voltage .
| Is This Answer Correct ? | 15 Yes | 5 No |
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