why rating of transformer is in kva instead of kw?

3 Answers  

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why abcd parameters are called transmission parameters

0 Answers  

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what is the chemical name and formula of refrigarent R-134a.

0 Answers   Blue Star,

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If cvt is most advance & effective(economically & stability)so why not use instead of VT(11 kv & 33 kv)?

3 Answers  

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What is difference b/w Microwave and OPGW ??

1 Answers  

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dear all, in motor operation , motor is of 100 hp and bimetal relay setting is 130 amp, if relay is getting tripped on 120 amp balance current what can be the reason? Relay is newly replaced. I dont know but is there any frequency effect in thit case? Can frequency variation affect bimetal relay operation?

1 Answers  

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11KW Delta motor is taking about 44Amps in star and goes upto 70Amps in delta and trips OFF. The rated current is 26Amps. Application is for the blower. The motor takes ( no load without coupling impller ) only 2.5A and 5Amps in star & delta starter test.Need to know why its taking high current.

10 Answers   Pfizer,

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Why GRR starts from 60% of motor speed why not less than 60%?

0 Answers  

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Electromotive force is provided by:(a) Resistance’s(b) A conducting path(c) An electric current(d) An electrical supply source

2 Answers  

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what is arc flash and what are the hazards involved

0 Answers   Reliance,

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In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is

0 Answers   Caterpillar,

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what is recovery voltage & transient voltage ?

1 Answers   Bhel,

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