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ABB Electrical Engineering Interview Questions
Questions Answers Views Company eMail

HOW DISTANCE PROTECTION IS DONE IN EHV TRANSMISSION LINES? WHAT IS THE BASIC TECHNIQ OR FUNDA USED BEHIND THIS ? SPECIALLY EXPLAIN?IMPEDANCE METHOD.

2 4931

WHEN THESE TRANSFORMERS WINDINS CONFIGURATION ARE USED? SPECIALLY EXPLAIN REGARDING STEP UP AND STEP DOWN KEEPING IN MIND.AND REGARDING LOAD ALSO. a.star to delta b.delta to star c.delta to delta d.star to star ALSO EXPLAIN WHY V USE 415/415 TRANSFORMERS IN TUBEWELLS?

1 2128

.if the vector group of two transformers is not same n tey r connected in parallel operation then what will happen?

2 3465

PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

969

what is meant by motor startup supervision & motor load jam protection ?

4116





what is meant by trip circuit supervision & directional or non directional over current ?

1 4039

what is formula in determining the size of Circuit Breaker for transformer with the following specifications. 7 units of 1600 volts (primary) and 400 volts (secondary). Both Primary and Secondary will have a circuit breaker which is SF6. What should be the Switchgear Main Breaker Size anf the sizes of each brances Circuit Breaker for Primary.

1 3031

How to reduce power factor correction capacitors failure in an industrial environment with vsd and computers usage in the system

2 2484

why plc need seprate earthing?

2 9487

where any change in supply line due to the incipient faults in three phase induction motor

2 2771

what is difference between fuse and breaker?

6 5460

suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

2 4003

why are transformers rated in KVA and not in KW

8 8806

why our power production in multiples of 11.

2 3142

which relay is used on long transmission lines

10 23512

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ABB Electrical Engineering Interview Questions





Un-Answered Questions

What are all the divisions of a COBOL program?

10


Pycharm has a debugger?

1


can any one explain about dataflow in the informatica project for bank domain....thanks is advance

9131


Where does Parallel flow heat exchanger use?

964


How to Get a list of valid time zones from windows?

1460






What are the different storage options with Azure?

1


What are the debugging tools used for Apache Pig scripts?

111


what is “Over the Counter Market”?

7


checking procedure of i.g.b.yt & diode by multimeter...

942


how to calculate dry density of cement,sand for mortar of brick masonry

1342


Comment on 'Make in India' Scheme launched by the government?

18


What is singleton pattern? How does angular use it?

11


what is bond wash transaction ,when we have to use it, and what is the procedure please help me with examle

1002


How is a typical spring implementation look like?

1


Explain the fresh water cooling system.

827