Answer / sumit mishra from areva t&

Protection required for dectection of abnormal(fault) condn
in case of generator are called generator protection.

Proetction req is based on the rating of the generator.
Following are some protection req in case of Generator.
1.Under/over voltage
2. Under/Over freq
3. Reverse Power
4. Differential Protection
5. Voltage controlled/restrained O/C
6. Loss of Filed
7. Stator E/F
8. Rotor E/F
9. Negative sequence/unbalance
10 Pole slipping etc..

what is function of centrifugal switch in single phase induction motor..?

3 Answers  

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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what is apparent poewr, reactive power, & active power?

0 Answers  

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What is the distance between body earthing and neutral earthing.?

1 Answers  

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how line turns ratio changes in 3 phase with change in connection

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Do you know the alignment of a motor?

8 Answers   Reliance,

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What is the different between Earthing & grounding?

1 Answers  

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what is meant by 3rd hormonics ?

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what different in delta & star connection in motor?explain

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does magnetic interlocking take place in an induction motor ?

2 Answers  

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Differentiate between kirchhoff’s first law and kirchhoff’s second law?

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A charge of 240 C is transferred in 2 minutes. The current flowing is:(a) 480A(b) 120A(c) 2A(d) 8A

2 Answers  

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