What magnetic circuit is formed in berry-type constructions and why?

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what is the purpose of CT,PT

8 Answers  

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Please give me a ansver for why currant transforme noe point should erthing

1 Answers  

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what is meant by damper winding ?

3 Answers  

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what is SWA type of cable?????

4 Answers  

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there are cam operated switches - why we call cam operated , What is cam ?

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In a Dyn11 transformer, how are the 3 windings of the delta connected? Assume that R1-R2, Y1-Y2, B1-B2 are the 3 windings on the HV side.

3 Answers  

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A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

0 Answers   Ispat, Red Bull,

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why is one voltage transformers (instead of three ) installed at the entrence of the incoming line in a substation.

2 Answers  

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if AVR fails in alternator. what will be the effect.

13 Answers   HP,

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Wat is da difference b/w neutral earthing and unearthed system?

2 Answers  

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Name two types of electrical analogous for mechanical system.

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