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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Fault current shall be part of tech specs of power cable or not?.

DAE,

1 2719

What is effect of over voltage and under voltage on ACB

EFS,

1980

Why is tan-delta test and capacitor measurement done on alternator?

TD Power Systems,

2212

Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?

1980

why we store only dc in batteries ?

1 2873

why we dont store the ac power in battery?

TCS,

1 2876

How to synchronization will be done between two DGs ?

1773

what is pmu

Alstom,

1 3277

What is Tan Delta Test

Power Grid,

1 2792

What is the settings of distance protection relay in 400 kv line

Crompton Greaves,

1694

Whai isPCC and MCC Difference?

Pretech Plast,

1 2417

Why earthing is necessary for any equipment?

1723

How we can calculate the life of Lead acid battery

ABC,

1784

A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.

1791

How much current in 100 kva Transformer HT & LT side

1 2336


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Is neutral transformer can be called as control transformer?

1978


aternator every parts and its working

1625


Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?

2003


HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

2499


what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1727


How to calculate the sag of OPGW during stringing???

2583


In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1964


What happens if the series current double?

1475


Define reserve-generating capacity?

1178


how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.

2047


which connection is safer series or parallel?usually which connection we prefer at home?

9996


How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.

1809


1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

2546


what is the breaking capacity and making capacity of circuit breaker and how

2131


WHAT IS THE WINDING PROCEDURE OF ELECTRICAL MOTOR

3980