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Electrical Engineering Interview Questions
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How to calculate cable size in HT AND LT

Apollo, JSKE,

1498

Ht panal kia hota ha?

 1 1931

What is the Working principle of ELCB and RCCB?

Geo Miler, L&T,

1 2109

Why is the neutral point of a star connected winding of a motor not grounded?

 1 2353

What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

 1404

How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

Dhanam Enterprises,

1143

why we not use capcitor in Three phase motor ??

GOMS, Power Electronics,

2 2367

What is the difference between PT for metering and PT for protection ?

Dewan Cement,

3 9032

What does dny11 stand for?

Cenored,

5 6847

Ac generato how produce power I need for camplet defination

KCL,

1164

How to calculate the 2500 Kva Transformer losses Primary 11KV Secondary 415volts

Laurus,

1 3865

1)Explain why the cradle guard is used on railway crossing in overhead line construction?

 4379

1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

 1261

How to select the proper VSD to operate high inertial load

 1270

what is the harmonics? which harmonics(fundamental and reference) is suitable for calculating capacitor bank and Active filter and passive filter? what is the 1st 2nd 3rd 4th 5th harmonics and effects?

 1 1763

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Un-Answered Questions { Electrical Engineering }

'documenˁ

1507

12.5 tons a/c is their how much kva generator can recommend to the customer.

1472

how can get electrical c licence.now i am working in spining mill , transformer capacity 2750KVA. SANCTION DEMAND 2250KVA. PLEASE ADVISE ME . MY CONTACT NO 09944226823

1357

how to get bearing & winding temperature of an induction motor?

1449

Hi,iam a diploma in electrical engineering.rtd from indian air force in apr 2007.prsently working in reliance next link as a network maintenance engineer since 2007,can i get a job in motherson sumi.

1886




aternator every parts and its working

1169

What is online and offline ups? how does it works?

1607

Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

1597

Explain about 3 phase motor fault current calculation with examples?

2407

How we can calculate the life of Lead acid battery

1304

Why is the frequency not changed during transformation of electrical energy in a transformer?

830

Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

1092

How they LT panel busbar size choose

1251

What is reverse power relay?

654

What are the internal and external faults?

606

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