Answer Posted / prashant

The basic equation is

P = 1.732VIcosA, where CosA can be taken as 0.85
V = 415 V
P = load
From this u have to find the current I and then using the
table select a suitable cable and cable size which can
withstant the current.

Why the output of OP-AMP is always less than Vcc?

1897

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

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PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

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define as synchronous generator

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WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

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I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com

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Batteries used for electrical energy storage are a. Laclanche cells b. Edison cells c. Lead acid cells d.any of the above

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We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?

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What is your acheivements

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how harmonics generated in induction furnance? how minimise it?

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Difference between On Line capacitor and Station Type capacitor.

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Define availability (operational)?

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Explain few advantages of electric traction system?

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