Answer / sheikh

in any type of generators if AVR has become failed
then not possible to generate the voltage, because excitation
is comulsory to megnetized the alternator field winding
in case of AVR faliuer exitation also must be failed becaus
AVR is supplied the exitation volage either no load condition
or on load condition AVR also incrase and decrease the
exitation voltage and current as per demand of load.

why we use 3 phase in our country?..why no 4,5 or 2??

2 Answers   Siemens,

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DIFFERENCE BETWEEN TRANSFORMER AND CURRENT TRANSFORMER?

7 Answers  

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what is an oscillator?

7 Answers  

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I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 Answers  

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What is the function of attenuator in cro?

0 Answers  

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how can we find of cable capicity in amper?how much ampere withstand by 300sqmm cable?

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what is a universal motor? how it works?

4 Answers  

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What is the basic rule for block diagram reduction technique?

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Why generally the transformer primary is connected in star & secondary in delta

7 Answers  

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What is the function of the circuit breaker failure relay?

0 Answers  

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why transformer neutral and CT Secondary neutral is connected to earth?

3 Answers   NCC,

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sir, my question is that if we start any three phase induction motor with star connection.will be current taken ? please send a formula.

4 Answers   ABB,

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