what is power factor ?

12 Answers   KSEB,

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in star delta starter current is 1/3times the delta value how?

2 Answers  

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what is the difference between oil surge relay and buchholz relay.

0 Answers   MPPEB, Suparco,

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any one can explain the stages of a knee point which is taken during ct magnetising curve.

0 Answers   Tata Steel Limited,

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is there any concept of armature reaction in Induction motor?

4 Answers  

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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

0 Answers  

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how to calculate neutrel current

2 Answers  

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1.wat is the advantage of induction motor? 2.wat is diffrence between 1-phase and 3-phase induction motor?

2 Answers  

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What does the term supermesh means?

0 Answers  

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Types of tempering of energy meter?

1 Answers   Nespak,

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what is the working principle of smoke detector in fire alarm system

2 Answers   Vijaya Bank,

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What is the difference between Surge protection device and Lighting arrester?

6 Answers  

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