Electrical Engineering Interview Questions

if we increase frequency of line, then how will string efficiency varies with it.

11939

Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

5429

How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

1971

what is the difference between control transformer and Potential transformer (PT)?

3637

is 3-phase induction motor need a starter ? why do it so

6440

what is the use of the circle diagram

4485

what is TRCC

13326

How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

1621

what is brushless generator?

4199

Can we perform parallel operation of two transformers when one transformer on load?

3996

dear all, can any body explain that how to select an induction motor for a specific mechanical load(inertia). is there any formula or calculation then please give me. i shell be very thankful to all of you. Thank,s and Rgard,s.

2430

why secondary terminal of current transformer should not be open circuited?

ABB,

8863

In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

3373

Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

1407

which type of motor is used in lift ?

8860

Un-Answered Questions { Electrical Engineering }

can mini-curcuit supply MIL-tested transformer !

1604

for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

1499

What is resistance of 50meters, 16sq.mm, single core copper cable?

1431

what are the steps involved in generator load test?

1082

How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

869

what is feeder bay?

1095

How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs

4369

IF ANYONE HAVE ANY QUESTION ASK ME AT MY MAIL anmol.bhardwaj5@gmail.com

1610

as a electrical student why should i hire you?

1972

I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer

1435

Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks

1282

what is the function of gss in the dg set.

1463

How to configure the drives in PLC, through Profibus commnication. And to how to address it?

2352

Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

1230

if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

987