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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.


what factor is necessary during design of HT & LT MOTORS.

2 4642

Why transformer rating in kVA not in kW?

5 4606

if we going for high voltage usages what are the considering factors, why those factors are effected.... please give me an answer related motor factors like wnidnig, frame, temp etc

1 1152

Find defination of KVA convert in to KW.

4 5501

how to calculate cable size in diffrent loads?


What is majour reason of Electrical Arcing ?

9 6648

how much current a 100 sq mm busbar will carry?

1 3303

what is the function of 1 phase preventer?

3 23267

What are the maximum and minimum ratings of MCB,MCCB,ACB,OCB,VCB and SF6 breakers?

2 28395

in transformers for ex. 100mva and 400kv the secondary current is about 420 amps but for selection of bushing the capacity of selected bushing is 2000A why there is such big difference ?

2 2998

what is creepage distance in sub-station?

3 6984

What is d role of reactive power in power system??How it produce & consume?

5 4772

Mechanism of Wye Delta Starter?

2 3267

can we use only a isolator in the subtation..

1 2848

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ABB Electrical Engineering Interview Questions

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