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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 5288

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 2395

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

2 3886

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

1158

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

4404





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

1 4292

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 3381

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

2 2808

why plc need seprate earthing?

2 10189

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

2 3172

what is difference between fuse and breaker?

6 6138

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

2 4394

why are transformers rated in KVA and not in KW

8 9857

why our power production in multiples of 11.

2 3484

which relay is used on long transmission lines

10 25077

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ABB Electrical Engineering Interview Questions


Un-Answered Questions

Can I use impala to query data already loaded into hive and hbase?

18


IN Compression testing machine 1division =10KN ,then what is compressive strength of 100*100 mm cubes at a load of 320 KN

884


How do I download and install joomla?

20


what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?

1292


How do I configure jdbc so that the jms jdbc store recovers automatically?

139






Explain the relation between operator_id and parent_operator_id columns in an explain plan table.

22


Explain the different modes of buck boost converter

186


Where views are stored in sql server?

131


How to change any page title in magento?

3


How u r estimating the budget 4 the project?

1444


What are the benefits of proof of stake as opposed to proof of work?

1


What is the tag for bold in html?

118


Explain softer handoff?

130


What is the extension of a photoshop document?

1


What is the core of co> operating system?

183