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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 2770

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

1 3342

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

3 3483

cause of failure of transformer bushes

3 3002

What is flow meter?

2 2550

the problem faced on star or delta winding connection??

1102

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%

1120

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

2 3060

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

6 5068

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 3917

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

2 2258

Why Transformer does not work in DC ?

5 6794

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

4 11555

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

Sail,

2 4718

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

3 4829


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Un-Answered Questions { Electrical Engineering }

What is the cut-off rate?

261


what are the parameters plays a major role in Potential transformer Burden calculation??

1207


What is the operating principle of turbo-generator.

1342


difference between Ac and Dc mcb ????

606


how is the connection of a 3 phase ct trivector meter done on a pole mounted transformer

497






How to improve fuel cell in a distribution system?

1158


how to discharge 3 phase power factor correction capacitors

1627


what is the best method of grounding in 30 MW generator?

1064


What is the function of RCBO? What are the different sensitivity ratings & each application?

1627


What are the different circuits in thermal power plant?

242


how the aircraft outer body and inner body is separated ?

193


What is the function of capacitor in electrical circuits?

234


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1119


How test for Ddo vector group test condition?

1440


The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

1059