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Electrical Engineering Interview Questions

WHY THE TRANSFORMER VALUE MEASURES IN KVA INSTEAD OF KW.

4743

why do transformer humm ??????????

3344

if we use contactor & MCCB both in a feeder.in this feeder rating of contactor is higher or lower or same of MCCB rating & why?

2303

what is difference between MCB & MCCB

3655

WHAT IS REMOTE CONTROLLED DG? WHAT IS DIFFERENCE BETWEEN REMOTE CONTROLLED DG & NORMAL DG SETS

3328

how to calculate the size of cable tray

10406

what is the difference between online and offline UPS?

8674

Upload data by LSMW via BAPI in SAP system.

3790

the power consumption of perminant magnet moving coil?

1964

what material used made for the resistance,for the purpose of zero temperature coefficient?

3240

A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS?

4362

A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS

2203

why open-delta core of 11kv Potential Transformer is 11000v/1.732/110/3?

5729

whats was the problem if neutral and earth got 2volt from the ups output

2472

SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

5037

Un-Answered Questions { Electrical Engineering }

Explain the functioning of diode?

251

How we can change the direction of rotation of Induction motor? Prove it using graphical

1213

how to estimate wiring ins roughing ins. and boxes

1561

What is George phenomena to start the synchronus machine?

3254

What is Harmonics how it is produced and what is the method to control the same

1373

why the NGR (neutral grounding resistor) always OFF during DG off?

2665

how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me

605

What are diffrent type of road taxes?

1094

Explain marx circuit.

256

how dose servo motor works

1047

what is negative d.c. voltage, why this voltage is used in base transciever station.

1313

what is capacitor voltage transformer?? how it is different from potential transformer?

1316

When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

1202

What is stepper motor?

253

TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?

1054