Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why we can choose induction machine in wind mill? why can`t use synchronous machine?

3 3295

what should be the air clearence between phase to phase, phase to earth in Medium voltage switchgear for 3.3kv,6.6kv,11kv,22kv and 33kv? Which is to be referred for this?

DLF, Sanmar, SEC,

1 5086

what are the shades for mimic diagram i.e for 3.3kv,6.6kv,11kv,22kv and 33kv? which is the IS for mimic diagram?

2 4612




What is Vk and Imag i.e Knee point voltage & Magnetising Current? How to calculate above values? How to define accuracy class 5P10?

Transco, Torrent Power, Deccan Cements, Doosan,

7 37043

FOR WHICH FAULTS OR CONDITIONS DOES A TRANSFORMER DIFFERENTIAL PROTECTION DOES NOT OPERATE???

10 6518

WHY DIODE IS CONNECTING ACROSS SWITCHES

5 5997

what is the meaning of bus bar, in electrical panels.

HLG Habtoor Leighton Group,

13 38764

what is a lightning arrester???

ABB, NTPC,

12 15069




flurescent bulb rating is to 230v,50HZ.now flurescent connected 230v,25HZ.whether nreduced frequency will affect the glowing properties of flurescent.

6 4243

what is ac servomotor??

7 5221

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1 1899

what is the effect when the shunt field winding is opened in dc shunt motor (i) at the time of starting ? (ii) in running condition ?

4 11175

what is relation betn. KW & KV?

10 27389

One watt is equal to how many? we says one watt bulb,means what it consume?

3 4835

Will u plz give me simple diagram for tube light connection & also function of chock?

TCS, Jindal, Bhushan Power Steel, Windmoller, Dalmia Group, Practical Viva Questions,

8 20622


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Un-Answered Questions { Electrical Engineering }

I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.

704


what will happen if there is a voltage leakage or current leakage in an electrical train

641


How to Decide(calculate) Bush bar size for copper and aluminiam ?

875


is that any software calculator to calculate the size of cable

1001


Please, if 1kw is equal to 1.25kva; how then do I know how many kva in 7.5kw?

159






what is metering cum synchronizing panel and how it is used?

2207


my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

59


During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

685


Benifits of 3ph 4 wire metering over 3ph 3 wire

1173


How to check the Bushings of the transformer?

425


why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

909


how calculate gd2 of ht motors

1023


what is JE exam?

811


please send me last 5 year interview questions

787


What is the tube exial fan?

682