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 ?

Fresher,

189

highest rating of alternator used in india

1 331

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

149

what are the functions of fuse ?

1 428




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

196

What is installed in PAC that is control the humidity

Sodexo,

296

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

229

Maintenance of transformer???

Adani,

411

Explain UPS

Powerica,

1 396

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


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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