Answer / jagadeesh

hi check www.enggmcq.blogspot.com
for previous transco question papers

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 difference between Earthing and Neutral?

13 Answers  

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how we select the mva rating of the circuit breakers?

1 Answers  

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How to take vector group test for Ynd11 transformer.

2 Answers   Voltech,

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why the impedence of the transformer is expressed in percentage?

3 Answers   DEWA,

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Type of motor stater detail and working detail

0 Answers  

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if i have one capacitor=80 micro farad which correct the unity power factor,but i want to make capacitor bank who correct the power factor.so,how to split this capacitance value?

2 Answers  

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What is dc induction motor ? and how to control its speed ?

1 Answers   HAL,

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why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?

2 Answers  

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why neutral busbar size is half of the phase busbar size in control panels

1 Answers   IBS,

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Why LT cables are not sized based on short circuit capacity.

3 Answers  

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If any one's require of phoenix contact like( relay , termilnal block , surge protection device ) , product please contect me 09878206357 chetan verma

0 Answers  

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