Why temperature rise test is conducted in bus bars and Isolators?

5 Answers   Areva,

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whati s the sludge current in ups

0 Answers   Future Group,

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What is the difference when selecting a cable between AC and DC current?

13 Answers   ABB,

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why cannot we use a freuency more than 400hz is used in aircrafts?

1 Answers  

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11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?

0 Answers   BK Gulf,

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high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

0 Answers  

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Why do power lines not short out when they fall into water?

0 Answers  

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can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

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 accuracy of a measurement?

0 Answers  

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There is 15 KVA UPS using for single phase load.And 30 batteries of 12 V, 100 Ah are connected in series. Load is taking 15 A current.What will be the back up power for this UPS on same load?

1 Answers   BS, Dynamic Software,

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what is the mazor difference between the induction transformer and synchonous motor?what is the similarity between them?

1 Answers  

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