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Electrical Engineering Interview Questions

how to extend relay operating timing in 24V dc relay card (without using Timer )

989

what is meant by PU value ? anyone can you explain briefly to me ?

3115

need help, please can someone tell me how can i calculate the main breaker and branches breakers to distribution panels (MDB) depending on the load ampere .. i really need it but can't find any site >>

2286

What is maximum permissible length of cable from transformer (33kV/0.433kV) HT side to HT panel which contain VCB? In which standard i shall get this information.

MSEB,

11402

Which motor has more efficiency ;Synchoronous or Induction motor ?

TATA,

5186

2346

What is the basic difference between 90% stator earth fault and 100% stator earth fault, and its phenmenona?

15044

purpose of breaker contact multiplication relay?

ABB,

19247

if two heater of rating 1KW,200v are connected in series 100v supply what will be the power taken

3273

write a program that prints prime numbers from 1-20 in digonal form

1058

What will be done if we open the secondary of CT on load??

3646

what is the transiant condition in alternator? and how it can be prevanted?

941

i alternator which of genarator used for excitor the what is reason?

2801

Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2718

I want to know what must the CT ratio be on a load of 300A is a 3PH nutral to earh installation?

3312

Un-Answered Questions { Electrical Engineering }

How many types oil using in transformer ? How many letars using in transformer..?

1082

how to flameproof electrical motor on the shaft?

1047

What does quality factor depend on in resonance?

170

Transmission through a short line depends on

1186

what rectifiers is and what are the types of rectifiers?

178

please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in

1080

if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

902

what is alluminium arm in ab conductors

1014

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

952

154

What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?

1398

Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.

1158

what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

726

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

1224

what is the chiller and working principal

1399