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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is rated current and operating current?

1 3879

how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

1434

How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side?

1 2545

140 is load amps for a equipments and what ratio of CT requied for installimg ammeter to amps montering purpose?

1 3017

what difference between thermal and bi-metal over load relay?

2 7249

How we calculate the spacing between the conductors in 11,33KV lines?

NHPC,

3 11983

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

Nalco, NTPC,

3712

how we sesign the transformer give some specifion regarding design of transformers

1287

To test Transformer we give HT side 440V to see wheather that it is producing 17.6V on LT to verify Voltage ratio is correct or not but when we give the 440V voltage to LT side then what will happen to HT voltage ?

Aditya Birla,

3 6103

I WANT BHEL PREVIOUS QUESTION

Bhel,

1643

How to calculate load taken by a cable?

3 4491

how to calculate current and voltage in a same circuit?

1499

in 33KV or 66KV system which connection is aviable on high voltage transformer primary delta or star ?

3 4619

What is VFD, and how its work

5 6627

What different between kw and kva. why maser AC in kva.

3 3921


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Air refrigeration cycle works on the

474


33kv Rated output avilable in market (any where in india)

1459


Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

1470


what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

1464


What happens if i apply 500V to 440V rotary Switch ?

1227






What is the Resposiblity of Electrical Utility Engineer

2158


how to decide the panel size like MDB ,SMDB PANEL SIZES

6589


how to select correct size of power cable for inverter duty motor

707


What is diversity factor in electric installations?

537


what are the applications of TIG welding

995


How to calculate the no of Ceiling fan (1200mm sweep) per unit area?

1122


solor panels arrange some angle,panel is flat fitted energy was produced or not why?

1234


How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

2049


what is the AC Plant and how can do the work with parts and picture tell us 150 Tr

1384


how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com

2112