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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why the ceiling fan rotates in clockwise direction and table fan rotates in anticlockwise direction.

Kirloskar, MPF, Wipro,

3 6602

why we pefer the salient pole for synchronous motor ?

2 2849

We have a 62.5 KVA DG with Leyland engine and kirloskar slipring alternator. We have earthed the neutral, and another earthing for the dg body. is it necessary to isolate the dg foundation with rubber pads?

1 2752

How to do the REF Stability test for power transformers in Site?

Escorts, Siemens,

1 7182

USE OF 8 WAY PAN ASSEMBLY

TCS,

1120

if a 3 point starter is not available, how can a dc motor be started?

Accenture, BIT, Techno Solutions,

3 15952

what is voltage,current,restance,. what is single phase&three phase motar. what is basic electrical 'farmoulas. what is defirens quetions of electrical maintenance.

2 2588

Batteries. What is the difference between Lead and Nickel batteries ?

1280

how does calculate loss correction factor in transformer

1 2275

how rated the neutral voltage of transformer and reactor, e.g. 400/220, 200MVA transformer have neutral voltage of 33kv. and reactor voltage 145kv. how this rating decided?

MEIL,

1 2823

How neutral voltage for transformer decided? eg 33kv neutral voltage for 200MVA transformer?

MEIL,

1 3247

1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

ACC,

1455

I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.

Vadilal,

1161

why incomer bay is required before transformer bay if there are more than 1 nos. of transformer bay.

2134

y we are used signal conditioner in capacitive transducer

1 2129


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Un-Answered Questions { Electrical Engineering }

I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

1433


What is the Minimum winding resistance of motors ( small & big)? referance range

1376


How can we checked Killo Watts of Motor & Alternator?

1228


Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

2017


What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?

1365






We have two parts in generator, electrical & mechanical. how it works?

1136


What is formula calculation size cable wire ?

1034


How maesure earth neutral value & how much maximum value value required in between earth & neutral.

1241


Where should the lighting arrestor be placed in distribution lines?

243


what is conductor copnstant of ab cable

891


How will calculate losses in an multi core Aluminium LT cable of different sizes & upto what length we can use a LT Cable ?

1280


what is the difference b/w absolute encoder and incremental encoder?

1117


What is difference between Harmonic and Non harmonic Capacitor Bank?

1885


hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E

1159


HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION

1367