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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why the capacitor are connected in Delta(Three Phase) for power factor improvement ?

Hero Honda,

5 20520

My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 9121

How to convert from HP to BHP please explain????????

1 4707

When Alarm report at LED,Alarm volatge is 11-13 Volt But LED is of 3 volt.then why not it burn?

1889

Why not LED burn after showing alarm,as Alarm volt is 11- 13,But LED is of3 volt,why it isnt Burn??

1 3527

Why no-load primary current is very small as compared to full load current in transformer (as 1% of full load current?

NTPC,

5 21095

WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv

5 22839

what is numerical relay explain its operation

ABB,

2 9514

What is the harm if we install primary side 11 KV VCB at a distance of one Km from the 11/3.3KV 12.5 MVA transformer through 11 KV cable.

4 10192

what is different the DOL Starter and Star Delta STARTER

Schwing Stetter,

12 92362

What happen while we measure the Current in Rotor?

1 4756

how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

ME,

2266

why DG battery blast

2 8403

why DG rating in kva

6 13231

what is AVR in alternator how its work?

8 37176


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

1971


UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

1939


What descriptive information does the NEC require to be marked on all conductors?

2006


How to calculate or formula to calculate rhe power in 2 phase system ??

1510


Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

2440


Lt motor sfu flashing reasons?

1787


use of PIR in ehv breaker

2166


What is Fire Panel ? How it works ?

2072


how to calculate the capacitor to maintain power factor?

2169


As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

1776


what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network

3809


what is frequency response?

1146


why need to be maintain power factor for industrial customer?

5076


hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

1925


Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?

1990