what use marshalling kishock in power transformer?

2 Answers  

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What is the name of transformers oil filteration equipment?

0 Answers   Reliance,

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what is the use of choke on tube light fitting

37 Answers   Bhel, Dharma, HSBC, TCS,

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What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply

10 Answers   eLab, Hero Honda, NTPC, Suzlon, Teradyne,

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What is meant by RCCB

3 Answers  

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What meant by lagging and leading? When if they are occurred what preventive methods should be taken?

14 Answers   ABB, L&T,

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what is the formula for calculating of dielectric strength of transformer oil.

2 Answers   Bhel,

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How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

0 Answers  

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At what factor resistance r of a conductor depends?

0 Answers  

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in power station power measuring unit is KW but in transformer is KVA why?

4 Answers  

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DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

6 Answers   GE,

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why the field winding of synchronous machine is excited by dc source

2 Answers  

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