what is the difference between metalhalide and mercury vapour lamp

1 Answers  

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what is purpose of manual bybass in ups

3 Answers  

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A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3

0 Answers  

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how to calculate IR value of 33KV cable ??

0 Answers  

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Why we use parllel operation of alternator

1 Answers  

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Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

0 Answers  

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what are inherent currents?

0 Answers   Sail,

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Why the capacitor are connected in Delta(Three Phase) for power factor improvement ?

5 Answers   Hero Honda,

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A 3ph load of 10 KW is equal to how many KW of single phase .

1 Answers  

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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How to calculate 5hp 415v 3phase 2800rpm Ac motor full load current with out tourgh

1 Answers   Siemens, Spatel,

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why there is a phase difference between line voltage & phase voltage ?

4 Answers  

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