Electrical Engineering Interview Questions

whats the formula for convert KVAR to FARADS

11302

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.

4988

What is AVR in Generators and How is it working.

11687

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

BARC,

12739

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

6132

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

4349

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

4056

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?

3865

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

3893

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

6057

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

ABB,

1751

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?

5922

how the grounding[earting] is achieved on ships.

4149

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

3657

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

7000

Un-Answered Questions { Electrical Engineering }

What is effect of over voltage and under voltage on ACB

1442

is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?

1437

how open delta PT works & what is its construction?

1815

WHY NUTRAL GROUND SYSTEM USED IN 33KV SYSTEM

1834

what are inductive and capacitive voltage transformers.what are their applications

1544

In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

11066

I have a situation to design sub-Distribution board/Panel meant for feeding power sockets. In the incomer CAN i Take TP MCCB with Neutral Link and All the outgoing feeders with to sockets with TP MCCB and Neutral Link? P.S : My System is IT Earthing

1368

work of choke in florocent tube circuit ?

1700

1701

What is kirchoff ’s current law (kcl)?

680

what is the thumb rule for determination resistance of resistor?

1858

What are the different types of transformers?

712

how to convert lv line to hv line and viseversa, any losses will occur during this process

1644

how to check avr of dg set of 125kva

2190

What is MSL designation of a motor and same may be provided in details.

1278