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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What happen if an alternator rotates in reverse direction?

3 13981

What is the difference between UPS and SMPS?

Mukand, NightFox,

7 45283

what is the other name of dc series motor

2 7065

How to make two bulbs glow Alternatively?

2 6926

description with working of all parts of a Diesel generator???????

DELL,

2491

why cont we short earth and N.......?

3 6028

Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 4423

What is the difference between earth fault and restricted earth fault protection?

1 5459

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2228

What is full form of ELECTRICAL?

Changwoon, DP World, Electrical, GSS, HCL, ITI, L&T, Maruti Suzuki, MCC, SMR, Somany Ceramics, TRDP, Wipro,

3 66314

How PADO software increase the efficiency of power plant?

Avalon, SVS,

6491

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2578

how can we calculate air compressure capacity

1 4050

what is earthing

1 4249

What is Ton Capacity of Air Conditioner?

TATA,

1 3784


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what happen when we add mentos in cold drink?& why?

2065


What are conduct on the testing in cf in ur site?

1671


what is the preventive maintence for ht panels and busbars and vcb abd acb's.

2383


what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

2429


what are the difference between AC lamp and DC lamp

2096


what are the problems that generally occur in power flows??

3256


mccb service sittings be done?

1813


why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

2027


What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

2398


When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

2158


define displacement & magnitude ?

1845


how cables go in and come out for distribution from the feeder pillar box?

2092


Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

3528


on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help

1737


What do you mean by a voltage transformer?

1157