Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the avr

ArcelorMittal, Heidelberge Cement,

6 8385

Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

3303

What do we use in Motor core laminations..???CRGO or CRNGO..and why..????

1 4598

We have AC-transformer 110/13.8kv,40MVA.If DC-Voltage=110kv is applied in its primary what will happen?

6 7604

what is the opencircuit tes &short circuit test in transformers ,why you need this test, in poen your connecting which votmeter why?

1 3992

in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

Siemens,

1675

define transient state &steady state

1 5712

what is class of SPD and dittels of all class ?

1701

if we want to convert the two 12 V DC batteries in parallel for UPS ? what would be the result ? which is better for a UPS , connect two batteries in series or connect them in parallel ?

2 3514

what is the diffrence between single phase and three phase

6 8998

what is the formula for converting KW into KWH ?

Blue Star, Essar,

3 6856

what is meant by dielectirc medium? what is the dielectirc value of air and water???

ISRO,

2 4960

How to calculate cable size between battery charger to Battery ?

L&T,

2 3763

WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION?

L&T,

5 14748

WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

L&T,

1830


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

5210


How to set the relay,,??

1777


What are the disadvantages of hydropower?

801


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

1734


Why wind turbines wheels rotate constantly

745






What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?

1902


What is the difference between a 3 winding and 2 winding Potential Transformer

1973


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1841


what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

1685


Differentiate between Zero and Negative sequence current

1560


how can i use REF and diffrencial relay both in 1 CT core for transformer protection?

1532


please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.

1366


In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

1664


we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1357


how to measure earth resistance of a substation

2887