Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is mean by STUB protection?

1734

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

Dalkia,

1721

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

Dalkia,

1809

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

Dalkia,

3 4823

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

Dalkia,

1641

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

Dalkia,

1 3279

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

Dalkia, GSK,

2 6929

do you know measure the earth resistance?explain

Dalkia,

1 3937

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,

1772

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

4 5356

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

Lanco,

1 3903

why delta delta connection generally not use in transformer

Lanco,

4 8741

What is Goerges phenomina to start SYCHNOUSMOTOR?

1 3571

why transformer are not used in D.C SUPPLY

5 7321

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

L&T,

2 5946


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Un-Answered Questions { Electrical Engineering }

What are motor generator sets and explain the different ways the motor generator set can be used ?

887


what is the difference between megger and earth resister ??

1525


Dear all i want to know SEWA Electrical Supervisor Licence test Previous Year Questions ? If any body know please send to me zohairaukllah@yahoo.com

717


how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

1918


What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.

2027






what is meant by 3rd hormonics ?

1560




1815


what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable

1717


What do you understand by oldham's coupling ?

801


Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

1467


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

1821


ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?

2653


What is dc current source? Differentiate between ideal and non ideal current sources?

1066


A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

1646


H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

1628