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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 7308

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 4008

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

2 6241

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

2276

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

6016

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

1 5761

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 4942

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

2 4801

why plc need seprate earthing?

2 12476

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

2 4908

what is difference between fuse and breaker?

6 10395

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

2 6207

why are transformers rated in KVA and not in KW

8 14645

why our power production in multiples of 11.

2 5454

which relay is used on long transmission lines

10 32781

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ABB Electrical Engineering Interview Questions

ABB Electrical Engineering Interview Questions (283)

Un-Answered Questions

What are types of partition primary index (ppi) in teradata?

1058

Name the different types of infocubes.

920

Name the template that is used to create a user-defined component.

930

What happens if an array goes out-of-bounds?

1093

What is the usage of goto statement in go programming language?

What is MRP procedure

2721

Discuss steam engines. What is its overall efficiency ?

995

List out main components of ember.js?

What would you say when HR asks you "Please do help me understand why are you looking for a non-technical profile?"

1957

How to generate a controller with resources in laravel?

812

What is variable size arrays?and why we use it?

1031

How can an HTMLCollection be traversed?

1032

Qtp has been installed on my pc but recently ON opening it is giving this error PLEASE REPLY IT IS URGENT IT WAS WORKKING FINE QTPRO.EX THE instruction at "0x7.. ...". referenced memory at "0000....The memory could not be read... Awaiting QTP XPERTS REPly URGENT

2547

I was working for software company frm 2005 to 2009. I left job due to recession.I was jobless till dec 09 then i got job in bpo and i am not knowing what to do as my professional experience is with software.give me any suggestion.

1934

what is the new structural elements in html5?

908