Answer Posted / manoj kumar

I=HTV/LTV

75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

3683

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how much allowable resistance that can be difference in motor all coils?

2295

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how to calculate IR value of 33KV cable ??

1843

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

765

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What is the different types of cable & current capacity of cable

1906

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i want to model paper for section engg.

1976

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- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2699

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for compensate 315mh inductance ,how many capaciance required?

2017

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how to calculate cooling requirement of datacentre from electrical load?

2351

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what is the use of sdf?

2065

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How to calculate mf when meter equipment and meter are connected

1687

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Why the efficiency of generator is more than motor in swinburne's test

1989

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What do you mean by reach and reach the point of the relay?

1227

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mccb service sittings be done?

1903

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How to measure power in 2 or 4 or n phase circuit? Please give me a formula.

1879

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