Answer / rajesh k

in d case of generator, if we remove dc exciter (internal
exciter), the out put vl fail 2 produce electricity.
Consequently AVR will trip off the generator.

Answer / ketan

if the generator running in parallel opearation,generator
will draw power from busbars and act like motor to prevent
this we use reverse power relay

Answer / manan bhatt

if we remove dc exciter from running machine then due to
absence of rotational energy, machine will stop but will
take some time for remaining kinetic energy of rotor.

Answer / k.prakashchandra

In case of DC shunt motor the speed goes on increasing .In
case of grid connected gen, the machine will run as
induction motor when prime mover is shut down and as
induction gen if the prime mover is running.IN case of
series motor ,it will come to rest.

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases voltage A does not alter B decreases C increases D none of above

1 Answers  

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difference between ac and dc generators

4 Answers  

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On 400 amp factory load how kvarh capacitors provide

0 Answers  

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Whether power factor should be high or low? Why?

0 Answers  

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6.6 KV /.415KV Step down trf. we can get 6.6 KV from primary by applying .415 KV secondary side by same TRF.

3 Answers   Suzlon,

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if you asked to choose a ckt breaker from MCB & MCCB for 32A which one will be best and why??

7 Answers  

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What is differance betwwen Conventional MCC & Inteligent MCC?

2 Answers   Quantum, Siemens,

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Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 Answers  

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wat is the difference between rotor 1st stage fault and 2nd stage fault?

3 Answers  

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what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

0 Answers   Areva,

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How to calculate the average power factor in 3 phase unbalanced system

5 Answers   Bhel, MacLellan,

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working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?

4 Answers  

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