how to calculate cable size, olr rating, contactor rating and mccb rating,to below given details three phase motor 75 kw,415 v,.85 pf,50 hz?

5 Answers   Cabin Crew, Essar,

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what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neutral is not used but transformer is provided with neutral.

2 Answers  

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what are the advantages by using IGBT in VSC HVDC than thyristor in conventional HVDC

1 Answers   Bhel, Eskom,

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What it is the diff btw Package & PEC AC's????

2 Answers   Emerson,

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how to mention 5mw generator in kva ? gen voltage is 11kv

6 Answers  

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For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?

0 Answers   Electrical Tech, UPSE,

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What is the formula to find maximum load of a DG (Single phase and Three phase)?

1 Answers  

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which inert gas is most apt to be used in a fluorescent lamp?? why ??

1 Answers  

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if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?

3 Answers  

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What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

0 Answers  

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We have a 62.5 KVA DG with Leyland engine and kirloskar slipring alternator. We have earthed the neutral, and another earthing for the dg body. is it necessary to isolate the dg foundation with rubber pads?

1 Answers  

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what are the main hormonics in ac?

1 Answers  

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