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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what are the effects when the frequency is decreased in any ac machine

1 3850

what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

2429

Is there any type of starter for DC motor other than two point,Three point and Four point starters?

2047

What is the Diesel consumption between 82KVA DG Set and 180KVA DG Set for 1 hour.

1 4094

Whether we used insulated line for 33KV supply. what we called it.

1 3902

Why we use 2core cable for Dc motor.Can I use 3core?

JK Paper, Maharaja Whiteline,

5 8680

what is closing resistor in circuit breaker? why it used?

3 17501

HI FRIENDS,MYSELF & MY GROUP OF FINAL YEAR ELECT ENGG. ARE MAKING A 50/3HZ,5HP,1000RPM,440V SALIENT POLE SYNCHRONOUS GENERATOR.COULD ANYONE OF U TELL ME WHAT COULD BE THE ADV. & DISADVANTAGES OF MAKING SUCH A LOW FREQN.GENERATOR/

2 4378

why cannot we use a freuency more than 400hz is used in aircrafts?

1 4351

what is charger supervision and control supervision?

2076

what is Over current, earth fault (O/C+E/F) ?

2 6982

what is differentila pilot supervision in the incomer control panel in the power station?

2104

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

Siemens,

1 5420

How will polarity test of Dy5 Transformer ?

2271

Can i use to 3 phase 4 wire energy meter inplace of 3 phase 3 wire energy meter ?

4 7169


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station

2019


What's the difference between non break power supply and non break non short break power supply

1450


What is EHT tariff or Power factor Tariff ????

2347


best manufacturer for busbar for outdoor switchyard having double bus bar scheme, can any one share technical specification of busbar. 132kv voltage ?

1726


1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

2566


How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?

1810


What is the distance between each insulator in 33kv transformer and how can it calculate

2194


define hysteresis loss, eddy current loss and windage loss

2000


We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

2062


In how we connect watt meter for open & short circuit test of a single phase transformer.

6722


why do we not use equivalent voltage source in negative sequence equivalent ckt.

2056


how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable

1615


PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

2273


Single line diagrams for star to delta and DOL starters.

2267


how to test power transformer.YNd11

1567