What is the fault or needs to be done when frequency in ac drives is not changing?

0 Answers  

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How generator NPS(NEGATIVE PHASE SEQUENCE TEST)TEST WAS DONE? PROCEDURE WITH DETAILS?

0 Answers  

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how can i get an electrical c-certificate?

0 Answers   Wartsila,

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what is the difference between directional & non directional earth fault with example please explain.

0 Answers  

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difference between shunt coil and tripping coil

8 Answers   GE,

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What is means by MacAdam Ellipse?

1 Answers  

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can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.

0 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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what is lightning arester?generaly which type of used in industeries? why its used?

7 Answers   Essar,

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In Round type three phase transformer why the LV side is inner part and HV outer part in the design of transformer? why they cant be opposite?

2 Answers  

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DIFFERENCE B/W NEUTRAL AND EARTH?

2 Answers   Genesis, IBC,

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Merz-Price circulating current principles is more suitable for

1 Answers   Student,

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