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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is master trip relay? How does it work?

1 5746

What is the difference between PLC & DCS?

Power Plant,

1 2950

What is the instrument to check the rotating diode fuse of alternator in running conditions?

2436

why in dc generator field rheostate kept in maximum position?

1 4526

What is Harmonics how it is produced and what is the method to control the same

Siemens,

2226

Why dc voltage used to excite alternator field in stead of ac?

4 8198

why voltage rating of transformers are in multiples of 1.1?

3 6181

what should be distance between phase to phase in 415v system?

NTPC,

1 6217

can we correct the p.f.of ac generator?

APGenco,

2 5949

What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 5932

In a poly phase circuit if clamp on meter shows same load on three phases and their sum on neutral then why we use three and a half core cable or maximum the same size of core as that of phase?

1 3691

how to determine kilowatts (real power) is used in energy meter? is it apparent power effect the disk rotation?

1 3620

When will you multiply and devide with derating factors to the actual value while sizing the cable?

1899

why we are used armed coble for wiring of 3phase motor?

AluChem,

3 5526

how to improve my communication skills

Infosys, MAHINDRA, Wipro,

7 10429


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Post possible questions for Power Factor Panel FAT / SAT

1370


What is dc current source? Differentiate between ideal and non ideal current sources?

1403


why i can not use thimble on capacitor duty contactor

1321


what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

4477


why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

1400


63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

2688


WHAT IS counter flux IN CT?

1899


What will be the fault current of any system when its generation is 10% of BASE generation( FUll Load )?Will is 10% or the same as full base calculation?

1871


what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1677


What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

1973


why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

1790


diameter of cable and core is doubled then the value of capacitance is

4252


sir i had plane to do some project with the base of hopkinson test in AC supply its possible

1831


What are PLC leader logic program method

1713


Do you need any help with FEWA Electrical Supervisor exams?

964