Electrical Engineering Interview Questions
Questions Answers Views Company eMail

whats the formula for convert KVAR to FARADS

2 8385

We have three 33kv substations. All of them energised by same source.When i am checking the phase sequence between one substation to other substation (like R Phase to R Phase) by multimeter i am getting some voltage.Near to LT panels UPS panels are there. Can u explain whether any possible to happen like that. In Phase SEquencemeter is showing correctly in both substations. How is it happen. Explain me.Explain me communication signal will produce Phase difference on this case.

3 2905

What is AVR in Generators and How is it working.

4 6124




is starting current of induction is high or stating current of ransformor is hign ,for the same rating

BARC,

12 6703

Why is our voltage always seems to be 3.3Kv,11Kv,66Kvetc.. why not 40Kv,39Kv,65Kv???

3 3693

could i arrange a faulty and healthey battery bank togather in parallel , if your ans is not then why?

3 2167

could i arrange a faulty and healthey battery bank togather in parallel , if your ans is not then why?

3 2104

what is phase angle ? and also tells me why my phase-phase voltages are 390 rather then my single phase voltages are 221 and 223 respectivly?

2 2036




why we +ve load distribution in 24v and -ve load distribution in 48volt in the telecom sector.?

2 2094

what happen if we supply ac to the field of a alternator?

5 3236

how to calculate power consumption in slip ring motor at different step

ABB,

725

in ONAN type transformer winding temperature is lower than oil temperature at evening time but morning winding temp is higher than oil temp what is the reason?

Areva,

2 3618

how the grounding[earting] is achieved on ships.

1 2485

1]how the voltages and frequency are achieved on ships. 2]how does the line and phase voltages are related on ships.

3 1696

how many units will 100 kvar capacitor consume for one day?

Philips,

2 4777


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Un-Answered Questions { Electrical Engineering }

what are safety measures in /control in diesal engine/ explain them?

472


how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

617


List of equipments required foe industrial repair lab.

517


What should be the percentage increase in length of the dead end clamp for bus bar conductor (Hawthorn) after hydraulic pressing and what should be the applied pressure?

481


What is FTA card? How it works?

498


one split ac how can told of this ac which Tr tell me us

619


I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

544


Dear all, i completed M.E(Power Electronics & Drives) 2011 passed out having 78% so i need job in core side but i don't know how can i receive the calls from electrical companies and i uploaded my CV in naukri, times jobs etc.. In that iam not recieved any mails from good companies so give me best procedure plzzzzzzzzzzzzzzzzzzzzzzzz..... Thanks, K.Linga Reddy Email-id:-lingareddykmthm@gmail.com Ph no:-08015402078

485


why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?

566


how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

1494


How servo stabilizer works.

684


HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

492


How to calculate the Harmonics losses in terms of cost/unit.

583


We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

315


what is mean by parallel operation of permanent magnet generators

528