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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 128576

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

14 42564

what is cogging and crawling

20 70087

What is the meaning of TRI Vector meter?

7 25074

What is the difference between voltage transformer and potential transformer?

38 73658

Explain the working principle of servomotor

20 42901

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 56584

how to select a circuit breaker?

24 48162

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

17 174995

why voltage drop will occurs in 3 phase line?

12 16735

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

4 25983

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

9 8698

what is corona effect?

39 72907

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 9431

what is transformer

63 46134

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ABB Electrical Engineering Interview Questions

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