what is the requirement of commutator in a universal motor?

3 Answers  

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what is the advantage and disadvantage of billing in kwh and kvah by electricity board .

6 Answers   Nespak, NTPC,

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What differance between Circuit brekar and Isolater?

14 Answers   TATA,

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If the primary side current of 33/11 transformer is 64 amps then what will be secondary side current?

2 Answers  

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what are different types of alternator and discuss about the methods of cooling

16 Answers   Bhel, Jindal, L&T, Nalco, Vedanta,

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if you short the any 2phase(R,Y,B),why fuse get blown?

5 Answers   Steel Plant,

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Can we use Motor protection CB while we use the VFD for Speed control?? if not means please tell the reason!!!

1 Answers  

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what is the ideal earth resistance

11 Answers   Amit Enterprises, Enercon,

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I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

0 Answers  

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define the active power?

0 Answers  

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what is the exact direction of current? as we know current travels from higher potential to lower potential,so if we take battery +ve to -ve implies current direction is from positive terminal to negative terminal.,whereas electrons flow from negative to positive as they are attracted by positive ions.current will be the plow of charge but not flow of positive ions.please clarify my doubt friends.

2 Answers  

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what is ground clearence in transmission system.is it varies wit conductor size,height of poles,span.

1 Answers  

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