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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

763

what id a dry type transformers and its function ?

844

i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

714

What is the function of neutral CT in transformer? Turn ratio of typical CT for 2MVA transformer ? or relation between full load current of transformer and neutral CT ?

1487

What is dynamo function in DG sets and draw block diagram?

1063

Good day everyone,currently in our premise we using 30kw slip ring motor with resistance bank which we use as forward and reverse at conveyor bar handling. So,my question is how do we calculate the resistance bank which is suit the motor. Kindly,assist me... thank you

762

In which iron losses is higher induction motor /transformer

1391

Could explain briefly of over excitation in transformer.

NCC,

2158

I am in last year of Engineering.I want to apply for ONGC on GATE based score.They require Certificate of Competency as Electrical Supervisor.How can i get this certificate so I can apply for AEE(ELECTRICAL) in 2016

ONGC,

1797

What should do when induction motor take more load in single phase ?

1291

What is the relationship between voltage,current & frequency?

804

for 750 kw LT load what will be the ht kva

757

Double Busbar Scheme for outdoor switch yard system (132kv) step up power plant Hi friends 1. in this system both busbars energized all the time. 2. what is the meaning of main BB and transfer BB, 3. step up transformer connect main bus bar all the time or both BB connected through DS switch . 4.bus sectionalization means ? thank you.

ABC, Gael,

1531

1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

ABC,

1102

what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

ABC,

1198

Un-Answered Questions { Electrical Engineering }

What are dependent sources?

159

How to Prepare preventive maintenance shedule of machine tool.

1030

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

389

Why Neutral Isolation is required?

1316

explain single phase series motor

1006

How line capacitance & line inductance varies with increase in height tower.

1371

how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

662

What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

1656

Why r u using pf panel. what the uses

972

How to address the servo drive for motor

1044

how to calculate compresor capacity?

1160

What is ideal IR values for ground and neutral.

788

brief notes on ammeters

1055

Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

734

Make a list observation on Transformer?

1425