Answer / balu

D rep delta in primary side
Y represent star in secondry side
N7 rep phase angle that means current is in 7 o clock position with voltage

-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

0 Answers  

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what is difference between short ckt and overload?

6 Answers   Siemens,

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Why power factor should not be in leading (capacitive) mode of any load.

3 Answers   GE,

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how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

0 Answers   Gujarat Electricity Board,

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what is the operating principle of contactor(power).along with disection?

3 Answers   NASA, Tech Mahindra,

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wath is this mining of bts

1 Answers   Nokia, TATA,

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pre arcing time of ehv breaker

0 Answers  

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some ac motor's direction get change dueto ghanging input to the ac drives.(say ryb to rby). but some motor direction remains the same when phase sequence is changed fromdive side. can anybody guide me?

1 Answers  

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what is megar testing

4 Answers   NASA,

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CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

0 Answers  

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what are RCBO ?

4 Answers   GE,

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If a generator of generating station produces 100MW rated output then what will be the rating of the step-up transformer connected to it?

5 Answers  

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