in trains i have seen the terminal which is connected at the top of the train is positive .where is negative ? track? i dont think so

9 Answers  

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what is the difference b/w neutral and ground?

4 Answers  

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describe the A.C. Generator Testing procedure

0 Answers  

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Why Delta Star Transformers are used for Lighting Loads.

6 Answers  

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suppose there is afault in transmission line connected to a generating station, then what r the adjustments u will take to without loss of synchronism?????

2 Answers   NTPC,

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Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers   Bhel,

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Can transformer develop three phase power from a single phase source?

12 Answers   ONGC,

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What is power factor why we should maintain the power factor unless what will happen

0 Answers  

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how to calculate capacitor rating for an induction transformer ex.for 12 mva furnace calculate capacitor rating

2 Answers  

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What is the deffirant between EARTH, GROUND AND NUTRAL

4 Answers   TCS,

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how to determine the size of power cable according to load current

1 Answers   JSW,

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if single phase is 230 v three phase is 440 v then what about two phase?and why is it so?

2 Answers   Eicher,

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