Answer / sumit b

P=VI Cos¢ (single phase)
P=√3 VI Cos¢ (three phase)

Answer / v.venkata ramana

L.V cable selection is Al cable 1sqmm carry 3amps
Cu cable 1sqmm carry 6amps

Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????

0 Answers  

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How to select cable rating for HT/LT Panels

1 Answers   Alstom,

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what is the formula for converting dc power(watt) to ac power (watt)?

3 Answers   ABB,

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what is errection pcbs?

0 Answers  

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Why indicated only R.Y.B to phase.

6 Answers   Bhel,

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what is the value of current and voltage that our body can resist ?

3 Answers  

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Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

0 Answers   Pride Hotels,

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what is the difference between squirrel cage & slip ring induction motor?

17 Answers   College School Exams Tests, NTPC, Ramyaa Electro Gear,

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We all have seen transmission and Distribution lines In transmission lines the voltage is high and current is low(to reduce I^2r loss) and in distribution lines voltage is low but current is high however the size of transmission wires is bigger than that of distribution wires even though the amount of current carried by the distribution lines is more than that of transmission lines why?

4 Answers  

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What r the specification furnishid in motor name plate?

5 Answers  

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What is the meaning of 'A synchronous motor floating on line'?

2 Answers  

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what is the capacitance of a single conductor

6 Answers   Bhel,

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