why any normal motor have to provide star & delta winding distribution during starting?

4 Answers  

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For a 500 MVA 400/220/33KV transformer following data given HV power = 500 MVA IV power = 500 MVA LV power = 5 MVA If input power is 500 MVA then how output power is (500+5)MVA. Can anyone help

1 Answers   MEIL,

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before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

0 Answers  

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Explain the power rating of a bulb, say 60W, what if the voltage changes

4 Answers  

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electric shock is due to current r voltage.?

12 Answers   National Steel, TCS,

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in alternator why on load terminal voltage is less than no load teprminal voltage

1 Answers  

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Types of circuit breaker

1 Answers  

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Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

2 Answers  

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WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5PHASE

18 Answers  

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how the inductor will work on dc supply?whether it will work or not?

11 Answers   NTPC,

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we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

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what is the switching substation

2 Answers  

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