Electrical Engineering Interview Questions
Questions Answers Views Company eMail

whats the formula for convert KVAR to FARADS

2 7781

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 2620

What is AVR in Generators and How is it working.

4 5323




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

BARC,

12 6076

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

3 3403

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

3 1959

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

3 1896

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 1796




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

2 1903

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

5 2895

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

ABB,

580

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 3273

how the grounding[earting] is achieved on ships.

1 2252

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

3 1481

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

Philips,

2 4385


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Un-Answered Questions { Electrical Engineering }

i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

404


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?

381


how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

436


How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

2206


1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

728


What can you contribute to the progress of our Company as an employee if you are selected?

3514


What are the electrical engineer roles and responsibilities in chemical plant?

78


how can decide the current rating of oltc

724


What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

653


What will happen if i connect the delta winding motor to star input.

362


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

536


where is the need for short circuit test for 3 see is required and why? can you explain in brief with application

361


what is the importance of earthing system on the generators big capacity and small?

290


placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!

359


what is ratio of copper wire size and current ?

330