I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

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i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection

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If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

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I have 3 1000 kva single phase transformers and I wish to replace them with one three phase transformer. What is he kva rating of the new three phase, is it 1000 kva also or 3000 kva.

5 Answers   Central Moloney,

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sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

14 Answers   CSPL,

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What is the difference between LT CT & HT CT?Can we use indoor type transformer as an outdoor type or vice versa?

2 Answers   Bhel,

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What is mean by diversity Fator?

7 Answers  

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How one can say about a device (e.g: a light holder contains 20 or 30 L.E.Ds which glows when power supply is off, from which source they are getting the supply..... battery or capacitor) without removing and opening up its case ?

1 Answers   CMC,

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which will glow brighter?bulb 1 (110v,100w) and bulb 2 (230v.200w) series connection

6 Answers   EnPower India,

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what is use of capacitor in fan

8 Answers   ABB,

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Define non-touching loop.

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What is meant by Resonance what are the different types of resonance and what are uses of them?

14 Answers   Infosys, NTPC,

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