Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is mean by STUB protection?

1569

what is the function of statics switch in ups and tell me parts

Dalkia,

1521

which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter

Dalkia,

1624

why trasformer rated in kva why should have to maintain pf in our site 0.9

Dalkia,

3 4316

which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

Dalkia,

1463

whydoes the p.f of diesel generator always be 0.8 explain how will you determine the shortcircuit capacity of network

Dalkia,

1 3016

what is the difference between DOL starter&star-delta starter& automatic star-delta starter

Dalkia, GSK,

2 6498

do you know measure the earth resistance?explain

Dalkia,

1 3656

how much mininmum length required to conduct a DC Hipot Test on 33kV AC Cable with 45kV DC? Is it 20meter or Less then 20?

ABB,

1606

3phase 4 wire system is more reliable or 3 phase 3 wire systems?

4 4881

what is the clearances between phease to phease & phease to earth in 400 kv transmission line?

Lanco,

1 3556

why delta delta connection generally not use in transformer

Lanco,

4 8078

What is Goerges phenomina to start SYCHNOUSMOTOR?

1 3245

why transformer are not used in D.C SUPPLY

5 6618

how to calculate short circuit calculation of the transformer by usuing the percentage impedence? formula needed.

L&T,

2 5555


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Un-Answered Questions { Electrical Engineering }

How to calculate the value of earth capacitance in a transmission line.

1780


How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?

1497


What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.

1714


How to calculate that clean water supply in one Day from 150 KLD STP?

1547


11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?

1203






What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?

1315


Operation carried out in thermal power stations?

589


Is there any Institution for giving M-tech in Electrical engineering for those who r in service? Give the details please.

1559


How to decide and select the different earthing wire size for the different types of earthing

1805


What is the voltage gain or transfer function of amplifier?

687


What is the difference between acs 550 & acs 850

5360


How to calculate multiplication factor in kva example 500kva ans pls ?

1372


Air refrigeration cycle works on the

647


How to reduce -234126219.6403 MVAr generation and by what?

1225


Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

1675