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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How big (size) can the tertiary winding be in transformer? Can we load the tertiary winding, if yes then how much we can load it?

1 5270

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?

1742

wht is meant by sh6

2 4721

What is an isolation transformer?Why do we need isolate circuits?Where do we use them?

2 6157

why the value of impedence is taken as %impedence in fault currrent calculation

1 3189

why use phase displacement in transformer.and effect of phase displacement on transformer

IOCL, ONGC,

2868

I have raw material for making Compact-Choke for flourscent lamp of 40 Watts. We are suppose to get 0.4 amps output at end. but we are getting 0.42 or 0.44 amps and above. We have done many testings in different but nothing worked out. Please suggest me how to get the correct output. We are using 1. core winding of 700 windings of aluminium 2. E-shape iron fillings and I-shape iron fillings to surround the winding.

6 8268

what is the difference between STAR and DELTA connection and application wise how it can be utilizedd

2204

how the vaccum ckt breaker workes..? how the arc is quenching in it?

1 4412

what is differant beetween overload current and phase current?

KMJ, Petron ltd,

2336

why the no.of slots in stator in not equal to the no. of stator in rotor in induction motor????

Jindal,

4 21099

If i switch on a transformer but with no load connected to the secondary path.Is the transformer will burn?

5 8215

how we select HRC FUSE ?

AXA,

1 6025

how digital four pin earth resistance tester works

2 5075

what is difference between low voltage and high voltage

3 31747


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

2114


What mean by MLTP

3949


What is the formula to find out two phase active & reactive power

2188


Basic motor transformer generator

1487


what is the difference b/w ground & virtual ground?

2312


what is the eight bit unit?

2444


If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

2708


How to distinguish whether MCB is DC or AC looking at it physically

1971


what is the best transformer oil breakdown voltage?

1127


When and where resistance earthing is used ? How to calculate the time constant for earth fault

1815


What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

2278


How to measure current and voltage in an ELV circuit

4158


what is the relation between size of the anteena and wavelenghth of radiated wave

2176


What is the difference between relays and contactor construction wise?

2248


How much load can be taken for chiller from 1500 kva transformer

1277