Electrical Engineering Interview Questions
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there is a line fault some where on the ove head distribution line. how will i locate the fault for clearing it? ofcourse i have to megger the line but what information makes me clear that the fault is in that section of the line?

2 3422

how do i commission a distribution transformer knowing all its ratings and transformation ratios?d

1 3887

What is the use of 1:1 isolation t/f in any circuit...?

3 4365

cause of failure of transformer bushes

3 4234

What is flow meter?

2 3198

the problem faced on star or delta winding connection??

1487

temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1482

If the soil resistivity is more large, how can we earthing our 11 k.v. transmission line?

2 3840

two 100W/230V bulb are connected in series. what would be the voltage drop across 1 bulb

6 6424

hello! can anyone explain to me how a 3 speeds table fan work? what are the factors that are controlling the speed of a normal table fan? Is it by varying the voltage or changing the magnetic field? would appreciate your reply :) thx in advance.

2 4639

why the inserting resistance in wound rotor induction motor decrease the starting current and increase the starting torque

2 2928

Why Transformer does not work in DC ?

5 8311

Why we use cosine angle for calculating power factor not in sine angle ?

4 14176

In how we connect watt meter for open & short circuit test of a single phase transformer.

Sail,

2 5621

if three phase supply is given to single phase transformer, what will happen?

3 5712


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Un-Answered Questions { Electrical Engineering }

what is your aim

1434


why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

1357


What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?

1620


Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

1726


Why do we use center tap transformer that used with portable tools

1748






what is differant beetween overload current and phase current?

1760


why different series of vfds (like allenbradley)are used in industry ?

1805


why need to be maintain power factor for industrial customer?

4073


I want single line diagram for AMF & DG syncronizing panel

6616


Difference between Earthing Truck & Earthing trolly for HT panel

3794


Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC

1565


what is the necessity of under ground cables ??

1615


what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer

1574


hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.

1450


In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.

1546