Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What are the minimum acceptable insulation resistances of insulation of underground cable suitable for 0.440kV,11kV, 33kV and 66kV?

2 5402

Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?

NTPC,

1428

how to calculate overall efficiency of diesel generator set? give us a formula with an example.

2 8453

To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

1431

what is humming noise and wha is the reason to develop humming noise in a mv pannel ?

HPL,

2 4330

why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

1512

what is the purpose of interpose t/f in control and relay ckts?

2 3875

what will happen when reverse reactive power occurs in alternators?

Reliance,

3 20012

how capacitor buield up the voltage

3 5377

what is the diff. between AVR & H.T.Stabilizer

2 4557

difine electrical ballast in HPSVL

1553

what is the clear formula to calculate cable size for a load

TCS,

1461

what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

8014

What happens to an electric motor if it has poor or no ventilation. Will it burn out? If it will, how long it will run before it burn out?

GMC,

5 5975

Why we should not parallel the with EB

1 1835


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Un-Answered Questions { Electrical Engineering }

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1406


description about dry type transformers

1459


relation between power station capacity and voltage level?

1575


What is Instantaneous Earth fault relay,how will work

1668


What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection

1419






how we will deside the high voltage value

1443


1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

1376


Why different Pressure switch used in marine boiler water circulation system

1291


why generator efficiency is more in swinburnes test?

1732


What are the basic components of the feedback control system?

605


i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

1534


what is conductor constant of raccun conductor

1763


sir, i am 3 years diploma course pass out candidate.what type of certificate can i got in marine service.

1438


in dc shunt motor if field winding is shorted then

1353


can i use the six sigma method which is used in management area, in state estimation of power systems?

1362