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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Do you know how to measure the earth resistance? if so explain it

42 132460

What meant by lagging and leading? When if they are occurred what preventive methods should be taken?

14 43793

what is cogging and crawling

20 71547

What is the meaning of TRI Vector meter?

7 25834

What is the difference between voltage transformer and potential transformer?

38 76369

Explain the working principle of servomotor

20 44026

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

12 58442

how to select a circuit breaker?

24 50115

What are the difference between C-Curve and D-Curve for MCB's.

17 177242

why voltage drop will occurs in 3 phase line?

12 17756

what is full form of lv and mv? 2.while we connect capacitor to generator what will cause for it?

4 26936

hw to find transformer is in normal position? whether its in charged condition or not? except humming sound?

9 9160

what is corona effect?

39 74968

If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 10005

what is transformer

63 48873

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ABB Electrical Engineering Interview Questions

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