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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to select power and control contactor .

Bhel,

1 2608

What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1071

Hi, We have have the major losses between BBT ( Bus Bar Trunking) to LT Incomer & LT to HT incomer, how to arrive the losses?

1 2306

What are the complete specifications of a motor?.

RRB,

2 4150

why in scott connection of transformers, main transformer is tapped at 50% and teaser transformer at 86.6%?

Bhel, Bosch, College School Exams Tests, Wipro,

5 26543

difference between analog pressure gauge & digital pressure gauge?

1 6064

what is the meaning of electrical maintenance?

GE Healthcare, MAHINDRA,

3 20802

Sir if i have 2kv ups in which 17ah 8 battries load 600watts how much back up time i get and if i put 6kv ups with the same no of battries same amp can i get more back up time please give reply exactly what is the procedure to calculate back up time for different kv,s

3 4309

definition of transponder?

1 2031

working principle of current sensing relay? how its work?

1 4412

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

1177

what is lumped and distributed elements?

1051

Write a note on RC operational amplifier as integrator

1 2060

what are the main differences of delta and star connection

Essar,

5 4483

can we run three phase motor by single phase? and what happens if we do this

Kirloskar,

8 9353


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Un-Answered Questions { Electrical Engineering }

How many VSC based HVDC are there in India and the world

1251


Pl. share your experience about industrial-electronics repair of machine tool.

979


Why 3 phase induction motor getting supply in body if one of it's phase is cut

797


What is meant by turbo alternators?

165


What is the role of feedback in a closed loop control system?

200






all interview questions with answers of ntpc (2000-2009

1302


Why hydropower stations are preferred solution for meeting peak loads in grids?

150


can anyone provide me a amf panel control wiring using ec-2 relay?

1240


Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

1203


What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

168


What are the characteristics of negative feedback?

166


what is the difference between linear choke and suction choke?

1668


What is sink and source?

177


although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

993


which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured

558