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ABB Interview Questions
Questions Answers Views Company eMail

wat is the difference between real power and reactive power..which is useful..?and how it s useful..wat is the effect of these on a power system...

10 21534

what is importance of ka in mccb

2 7350

what is meant by insulation voltage in cables? explain it?

4 18680

from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

1682

STATE AND EXPLAIN SUPER POSITION THEOREM.

3 17845

During a temperature rise test of a bus duct, it is fed with 415 volts at 2000 amperes. Why dont we get an electric shock if we touch the bus bars?

7 13229

What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?

3 33717

why 1.7Uo for HV cable Hi pot test?IE standard why?

2047

How much ampere rating on LT side of distribution transformer and also on HT side of 200KVA transformer

2 11565

How to solve the problem of low voltage at consumer end in distribution system if one phase come low voltage of transformer

1 3240

What is the difference when selecting a cable between AC and DC current?

13 52033

What happens if the capacitive reactance of a transmission line is very high?

5 14362

Explain the working principle of variable frequency drive?

3117

what is the procedure for three phase motor differential relay testing can it do with single phase test kit?

1 14529

What is Grounding? any difference b\w earthing? if yes plz explan??

3 6828

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Un-Answered Questions

please send me the L&T Emb. sys. placement papers and entire details of pattren

1986


What is a inode?

576


What are sap testing services?

33


Explain controlling area. What are its uses?

619


How can you use a custom controls in ASP.NET application?

637






Why is xap important?

713


What is query processing?

640


How to define a json object from a string?

1


What are the encodings supported by designer ?

777


why ten delta testing is carried out on power transformer

1486


What is keyword auto for?

769


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3331


how do we design mix ratio?

1527


how much to get of BRC lapping in full yield and half yield ?

2154


List some examples of renewable energy?

882