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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

can we synchronize star system generators with delta system generators?

 1503

can we synchronize star system generators with delta system transmission line ? and how ?

 2343

Can we convert off line transformer to on line transformer

NHPC,

1505

Can we convert off load tap changer transformer to on load tap changer transformer

 2 5787

why two fuses are used in battery charging room?one in positive line and the other in negative line?do any DC system require two fuses?

HPCL,

1 3842

how many test is necessary for 27mva transformer.

HEG,

3 5855

Why we use series reactor in power system?

Cadbury, HEG, Uttam,

9 21154

How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?

OCL,

1704

What is differential relay? How it operates?

 1 4478

. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

1658

What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

1550

While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply

2 7749

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1593

Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

1691

Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?

1 3574

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Un-Answered Questions { Electrical Engineering }

explain the types of drives

1604

how we decide the require size is this for a known current at fuu load?

1464

how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

1761

what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1279

What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

1463




why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

1739

how to build a network which step down 415v to 1v rms

1509

what is acceptance test in electrical engineering.

1735

WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

1606

what types of cable used in underground coal mining?

1101

What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

1767

R=*¶ l/a

1194

what is the Connected Load (kW) or Contract Demand (kVA)of mahindra nasik plant??

8935

what is ratio of copper wire size and current ?

1405

What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

2535

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