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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

working principles of cf lamp,incandescentlamp and f lamp?

2220

How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

1992

Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

2086

One 15kw motor Why we used star delta feeder?why not used DOL please explain in details

BMM Ispat, GSK, Pitti Laminations,

3 8781

WHAT IS THE FAULT WHEN 100HP TURBINE MOTOR TRIPS, LIST THE FAULTS AND ITS TRABULESHOOTING TIPS.. MY AUTO TARNSFORMER STARTER TRIPS

MPS Techologies,

2042

What is ferrite affects and what is disadvantage of ferrite affects.

1 3286

what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

NPTC, NTPC,

4 50773

How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 3631

write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

2505

What is the output of 25 kva 11/.4 kv transformer in kw ? Plz generalized it...

NTPC,

3 9050

I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

1802

what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

1990

Can we transmit digital signal to long distance ?

1913

can u give me a brief idea about power line carrier communication ??

1793

can u give me a brief idea about power line carrier communication ??

1937


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Is a d.c.compound motor is use as a booster? how?

2097


how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

1925


What is the actual calculation for transformer short circuit test?.

2422


How would your past experience translate into success in this job?

6845


Explain few advantages of electric traction system?

1079


limitation of conductor height on ground when we consider EMC

1995


How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?

2030


A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

5194


what is the difference between pvc & fiber glass cables

1522


exolain the star delta connection

2641


what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

2051


what is vtg limit of earth and neutral at transformer side?

1994


What is Phase margin?

1064


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

1987


if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

1833