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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 5661

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 2710

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

2 4271

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

1365

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

4790





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

1 4570

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 3718

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

2 3221

why plc need seprate earthing?

2 10638

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

2 3519

what is difference between fuse and breaker?

6 6889

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

2 4742

why are transformers rated in KVA and not in KW

8 10839

why our power production in multiples of 11.

2 3920

which relay is used on long transmission lines

10 27490

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

4308


What is a statement?

331


Which are the different case manipulation functions in sql?

317


What is data structures in computer science?

286


Let arr be an array of 20 integers. Write a program that first fills the array with up to 20 input values and then finds and displays both the subscript of the largest item in arr and the value of the largest item. • Use an IDE to develop and save your work

1635






i have one file i saved in csv how can i take these file into framework manager

1304


How many types of assembly languages are there?

301


What does null mean in excel?

158


What is difference the between sqoop and distcp?

1


Which function is used to return remainder in a division operator in sql?

351


Explain the concept of proper inheritance?

384


what is the procedure of interview question in genpact

1522


What do you mean by default dial-peer?

3


Which property is used to set the line style for the outline?

123


What is the need for an etl tool?

388