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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 4730

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 1958

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

2 3230

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

863

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

3798





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

1 3849

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 2772

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

2 2294

why plc need seprate earthing?

2 9087

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

2 2590

what is difference between fuse and breaker?

6 5174

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

2 3785

why are transformers rated in KVA and not in KW

8 8100

why our power production in multiples of 11.

2 2968

which relay is used on long transmission lines

10 22497

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Un-Answered Questions

how can calculate material in 1:1.5:3 ratio in concrete

524


Anybody please send me the papers of the reliance exam (apti and tech) so that i can go through it) mail me at raminder_verma@rediffmail.com

890


how to preaper for interview wat they asked in interview give me idea

1209


How to define Kirchhoff current law and voltage law along with simply examples.

403


Is Turbo Pascal still available?

768






what is the painting co efficient of slope roof tiles?

611


3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

98


how many Classification of fire extinguisher

870


why you want to lecturer

996


what are the different topics cvered in marketing paper

800


describe an achievement highlighting your approach to a problem you faced as well as the solution you developed

4926


how to prepare for an written exam for any type of company?

1106


hi please send the exam modle paper for mechanical engineering. Iam attending for vizag steel plant MT

750


10. Employees tell you exactly when services will be performed

1019


What are the Differenct Types of Instancing Property in ActiveX Dll and Exe?

956






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