why two point starter,three point starter, four point starter cannot be used for A.C machines?

2 Answers  

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If one ct is reversely connected in Y system what will effect in kwh and kvarh meter?

1 Answers  

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what will happen when reverse reactive power occurs in alternators?

3 Answers   Reliance,

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why does a dc machine has high efficiency while working as a generator than as a motor

1 Answers  

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examples of resistive inductive and capacitive load

1 Answers  

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what is meaning of Power factor?????????

3 Answers  

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we can conformed the vector group of the transformer. How?

0 Answers  

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why most of the induction motors are delta connected?

7 Answers  

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If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

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If in a 3 phase supply if the load current is 200A what value of current the each phase R,Y & B will carry?

5 Answers  

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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how to carried out DAR test in 11 KV Alternator ?

0 Answers  

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