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OPS Interview Questions
Questions Answers Views Company eMail

capacitor is load free component but why ampare meter shows the current when the capacitor bank breaker close?

4 7794

capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?

5 13950

what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?

13 45339

why in three phase 440 circuit in all phase current is almost equal L1-35 A,L2-34 A ,L3-31 A but in nutral when i check with clamp meter it shows 25 A?

4 12204

why for transformer protection we protect tranformer from 3rd hormonics and 5th hormonics and what is the reason of generating these horminics in electrical system?

2 8842

what is difference between start imitation and start interlock for 3 phase motor protection ?

2 7197

what is difference between differential protection and distance protection and how we calculate the sloop?

5 44288

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

2630

river which doesnt form the delta at the mouth of the

1 4993

why voltage rating not mention at HPSV or HPMV lamps?

2 6127

can we use HPSV LAMP in HPMV LAMP fixture ?and viseversa.

5 12459

Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

3956

How do u prepare Cost sheet? on what basis it is prepared how it is useful to the management?

3 8836

how we will prepare n file income tax returns for individuals?explain

1855

how to calculate restraing current and operating current for differential protection if 20 mva transformer is OLTC 33 kv/11 kv ? and what should be the type and ratio of CT?

2 5259

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1908


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