Electrical Engineering Interview Questions
Questions Answers Views Company eMail

If induction motor load is incresed motor speed decrases.But in syncronous motor load incrases speed canstant why?

4 13011

how induction generator generated the power without excition like syncronous generator.

3 2931

what is function and advantage of double delta winding in induction generator?

1 1765




WHAT HAPPENS IN DIFFERENTIAL PROTECTION IF CT REACHES ITS KNEE VOLTAGE POINT?

Jindal,

4 6939

what is RMU ?

MacLellan, Shalaka Infra Tech,

26 92791

for ac networks if the voltage wave form is V=Vm sinwt here the voltage Vm=230 for the frequency 50hz then the time period is 0.02 sec then for the time period 0.12 sec what is the voltage

4 13681

testing of transformer

Vijai Electricals,

1 2436

why transformer core is eathed?

ECE,

7 22523




NOW A DAYS THE POWER SUPPLY IS VERY LOW.SO THE FLURESCENT TUBE LIGHTS ARE VERY DIM.IS THERE IS ANY WAY TO INCREASE ITS BRIGHTNESS?FOR EXAMPLE ANY CONVERTER,CONDENSER?

Bhel,

1 2408

what is the difference between ELCB and RCCB

Hyundai, Concorde,

5 7862

How to design constatnt power source with variable current and Voltage.

2 2266

where can i get the previous years question papers for APGENCO exam.

2229

What is the meaning of Dyn11 of Transformer.

16 101543

why return path in terms of neutral is required please give a relevant answer

3 3369

Name different types of circuit breakers and their voltage ratings?

NTPC,

11 29403


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Un-Answered Questions { Electrical Engineering }

What is the lower limit of break-down voltage of converter transformer.

636


STATE WORKING OF VACCUM CIRCUIT BRAKER?

718


why we use 630mm single core cable for transformer secondary side and why two neutral cable

500


with help of neat sketch explain principle of TIG welding process

463


what is the difference betweem star connected motor & delta connected motor?

1082






WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

1075


1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

691


how to calculate the distance relay faulty zone?pls explain?

718


In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

856


In my power station 220 volts dc battery set. they coneected 84th cell taped

438


How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

449


Starting Time of LT & HT Motor

686


CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

1382


Why 3 phase induction motor getting supply in body if one of it's phase is cut

430


What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

136