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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is mean by STUB protection?

1117

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

Dalkia,

1089

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

Dalkia,

1146

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

Dalkia,

3 3255

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

Dalkia,

1026

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

Dalkia,

1 2383

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

Dalkia, GSK,

2 5509

do you know measure the earth resistance?explain

Dalkia,

1 2934

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,

1181

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

4 3720

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

Lanco,

1 2834

why delta delta connection generally not use in transformer

Lanco,

4 6672

What is Goerges phenomina to start SYCHNOUSMOTOR?

1 2551

why transformer are not used in D.C SUPPLY

5 5223

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

L&T,

2 4695


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Un-Answered Questions { Electrical Engineering }

what do u understand about FACTS? how they are useful?

1098


why dimmerstate always connected in star connection? what will happen if it connected in delta?

1143


what is value of Jin transformer

1181


How to checked frequency drive output voltages?

228


How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?

1273






Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

1077


When will you multiply and devide with derating factors to the actual value while sizing the cable?

1051


What is effect of harmonic current (Draw by VFD) on power system/ electrical Equipments ?

1132


Why single phase induction motors are not self starting ?

643


what is mean by Digital Logic Meter (DLM)

1384


wish of these transformer uses oil?

766


placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!

1098


What are the two major types of control system?

197


A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

1204


hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

2043