Answer / rizwan akram

one moter slipring 17.5kw roter voltage 220v and roter amp 45 than external resistance find in ohm and watt

What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?

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when we are going to higher voltage level in substations why we are using Sf6 circuit breakers instead of Vacuum circuit breakers.

3 Answers  

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which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?

0 Answers  

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List the power rating of any 5 important electrical appliances used in houses.

0 Answers  

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What is meant by electrical speed?

1 Answers  

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figure of phasor diagram of transformer when full load or no load ?

1 Answers   Swastik, TCS,

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What type of isolation transformer used in UPS's?? It's Star-Delata Or Delata-Star????Why it is used????

6 Answers   Emerson,

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How to calculate multiplication factor in kva example 500kva ans pls ?

0 Answers  

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I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.

5 Answers   IOCL,

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Kindly give the brief explanations for checking 12.5 kvar 440V, 25 KVAR 440V, 12.5KVAR 690V, 25 KVAR 690V capacitors microfarad values. what is the microfarad values for the above four type of capacitors, and give the formula explanations briefly. I know F-50HZ, voltage, and capacitor.

1 Answers  

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Distinguish between shunt and series field coil constructions.

2 Answers   BEL,

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what is meant by loss of field in a DC motor? how a universal motor works?

0 Answers  

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