Answer / umesh ranjan panigrahi

If it is a 3-phase squrel cage induction motor then by
adding external resistance in rotor circuit we can control
speed as well as torque.

what is the advantage of Cathodic eathing system and what is the basic principle and how itis working, please explain clearly .

2 Answers   Meinhardt,

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How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

0 Answers  

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What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load

0 Answers  

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How can we convert 11 kv to 440 volt without using transformer ?

0 Answers   Electrical,

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What happens when the polarity changes in CT? Explain briefly?

8 Answers  

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What is the use of IGBT in UPS & its working??????????

5 Answers   Reliance,

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what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?

0 Answers  

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Is it possible that Generator trip but Turbine not trip.Give explanation.

1 Answers   Essar,

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Can u tell me the name of books of transformer testing?

6 Answers  

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How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

0 Answers  

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what is back emf?

4 Answers   Bhel,

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why efficiency of generator is greater than motor?

2 Answers  

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