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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.

974

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

2 4472

Why transformer rating in kVA not in kW?

5 4301

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 1017

Find defination of KVA convert in to KW.

4 5236





how to calculate cable size in diffrent loads?

1041

What is majour reason of Electrical Arcing ?

9 6125

how much current a 100 sq mm busbar will carry?

1 3154

what is the function of 1 phase preventer?

3 22897

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

2 27609

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 2835

what is creepage distance in sub-station?

3 6688

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

5 4416

Mechanism of Wye Delta Starter?

2 3070

can we use only a isolator in the subtation..

1 2689

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ABB Electrical Engineering Interview Questions





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TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

4160


What is a look-up?

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what is coupling integration testing

1023