why rotor resistance starter is not suitable for squrielcage induction motor?why it is suitable for slipring induction motor?

5 Answers  

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WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?

0 Answers  

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Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

0 Answers  

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what is the purpose of high speed earth switch in gas insulated substat

0 Answers   ABB,

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IS there any mechanical connection between the field winding and armature winding of a dc generator?

11 Answers   IOCL,

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why ups in kva ratings?

2 Answers  

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how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers  

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For 1 KVA load how much KVARH capacitor can be used ?

3 Answers   NLC, TNEB Tamil Nadu Electricity Board,

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what is the transformer turn ratio formula and give some examples?

0 Answers   UPPCL,

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what mean by machin

5 Answers  

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how do you reduce the skin effect

2 Answers  

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can a rotating machine give the DC output without commutator? if yes, how? if no, why?

6 Answers   BARC,

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