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Electrical Engineering Interview Questions
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please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1061

we convert 66kv to 33kv then 33kv to 11kv,11kv to 440v.why not we convert directly from 66kv to440v?

HCL, L&T,

7 15722

what is the pre commissioning test to be carried out on LT power panel at site?

1 11880

Plz tell me how we can find that particular company has vacancy or not

L&T,

1211

HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????

934

In any plant or substation main incommer voltage RY - 415 V,YB - 400 V, BR - 387 V(in commer feed from transformer 11 Kv /0.415 KV) why found voltage differance in each phase? plant have not self power plant it is depend on outsource grid

2 3401

Here iam a question with SYNCHRONIZATION PANNEL related issue, as i want to design a SYNC.pannel board iam giving the 2 nos of 1MVA Generators to sync pannel , then what wil be the out put of the sync pannel, whether it wil be one cable coems from the sync panel or two cables.. as iam using two transformers to meet my load demand, so pls clear me whether two cables comes from sync panel to connect to transformers or only one cable

3 2936

How to know motor winding is star or delta connected without see the information table and winding connection ?

NTPC,

5 10506

In 3phase supply Voltage will come around 370v then what will happen?(mean what will effect on electrical equipment like AC,UPS,Motors.)

NTPC,

1 2091

my first school?

1 2207

why there is a phase difference between line voltage & phase voltage ?

4 4035

can we use optical fibre to electrical power transmission ?

1 1402

what will happen if i connect the buchholz relay in reverse direction.

MAN,

1 3837

why we are grounding the neutral?

GE,

1 1517

state the functions of different parts of star delta starter.

1 6709


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Un-Answered Questions { Electrical Engineering }

What is a copper loss or i2r loss pc?

220


how power is generated,and transmitted to our home..pls explain briefly in simple words.

1324


What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

1515


Can i use the B-curve MCB instead of C-curve MCB

1144


Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

893






What are the types of instrument transformer?

204


what happen when power factor of 2 parallely operated transformer become equle?

1232


HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?

1136


Please tell me the earthing procedures adopted for the STAR-STAR 3 Phase transformer in india and give a better sugession for earthing

1105


Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)

1215


how to setting voltage RTCC panel

718


how to build a network which step down 415v to 1v rms

973


how are reversing the direction of dc motor

782


in my industry we are using 3 step up transformers for induction heaters..i.e 415/580v and other are 11/440v.in power consumption does a step trnsformer makes any difference compared to step up?? plz explain

1003


plz send me the syllabus or any sample paper for engineer trainee recruitment if any,on ravinder911@yahoo.com

1318