Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

235

what is the difference between changer, converter and transformer?

260

what is the difference between transformer,converter and transducer

370

what is the ATS .And how it works.

286

What is distance between electrical panel to land ?

189

highest rating of alternator used in india

331

why impudance relay used for medium transmission power system? why not others?

149

what are the functions of fuse ?

428

How to calculate cable size by using load.?? Any formula...

196

What is installed in PAC that is control the humidity

296

what will be the min and max voltage flow from neutral to earth?

229

Maintenance of transformer???

411

Explain UPS

396

If a high resistance fault occurs,then what are the changes will happen in the system?

248

How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

664

Un-Answered Questions { Electrical Engineering }

Do Phase angle measurement have any application in freq/harmonics measurement? If so how?

752

What are the different methodes for calculating the short circuit Current?

815

What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

2334

what is meant by LCR meter? where its useful ?

871

would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?

687

Draw a SLD of DG distribution up to main LT panel?

7047

what material is the electrical housing wire made of? is there any difference for the telephone lines?

795

When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

996

Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

917

What is online and offline ups? how does it works?

861

3 pahase 750kva Running 2 DG sets in 35 mints.525ampers. and 616 kw how much fuel consumption in Generator.what is the formula.

685

ROC converges if poles and zeros lie inside a. Origion b. Z=1

890

Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?

727

what is the function of statics switch in ups and tell me parts

811

what is the principle of operation of tungstun bulb ??

737