Electrical Engineering Interview Questions

What is the difference between hot and cold loop testing?

657

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

655

What is the effect of electric motor stuck in star configuration,

673

how the aircraft outer body and inner body is separated ?

619

how the inner and outer body is separated in aircrafts?

585

Why we use d.c. meger in a.c. induction motor?

9311

What happens to a motor if it is connected in Delta connection

556

75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

3254

what is the range of maximum DOL and SDS can be use for pump and fan application

618

What is the difference between DOL starter and star delta starter

564

electrical knowelge

726

What is resistance reading of earth copper rod with grid and without grid?

638

A 230 v dc series motor is connected to 230 V ac supply, then

1119

What is various types of electrical formula?

1022

How many gap between finger contact in a.c.b. and v.cb.?

727

Un-Answered Questions { Electrical Engineering }

nwhat are the main Components of servo motor?

1603

what is transient enclosure vltage , very fast transients, very fast transient over voltages

1626

598

List examples of current sources?

610

how to calculate percentage impedence at 75 deg C at normal tap

1788

High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

1620

What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

1807

Assuming that a dedicated neutral earthing transformer is provided for each GT generator, when the two generators are running in parallel, has consideration been given that the earth fault current from one generator stator winding be split between the two neutral earthing transformers? If so, what adverse impact will this have on the operation of the 59N and 27TN devices?

1217

what kind of quetions will ask in BHEL in interview? Plz help me?

1566

DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

2019

What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1566

what is the purpose of using filters in a protective relaying scheme?

1747

how to check avr of dg set of 125kva

2143

what about SAP/MRP regarding manufacturing of electric motors and all drives?

1568

What is the one main difference between ups & inverter ? And electrical engineering & electronics engineering ?

646