Electrical Engineering Interview Questions

what is bushing in transfermor

7368

what is electrostatic presipitator in thermal power plant,and why it is used?

ACC,

5358

Why we oil in tranformer/

5886

how will you calculate rated Primary and Secondary voltage and Current for 2500 KVA, 11kv/443V Transformer

4186

how calculate cable size in squre mm, when the load is given by in kw? do u have current rating chart of elctrical cables?

11106

I have three phase 400 KW,390 A MOTOR.For this motor which type of Cable is required....specifically rubber cable required. Can anyone help me..

7741

Why celling fan rotates in anticlockwise direction and table fan in clockwise direction ? Give technical reason.

16627

how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............

1634

Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

3472

1. name the relay for protecting transformer 2. Current Transformer 3. potential Transformer

3356

Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

4684

How can we calculate the power factor of an electrical appliance ? Is there any formula ? Is there any meter around to calculate it ? And how to use that meter ? thanks

5869

upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

ABC,

1686

how can we use isolator as breaker

4507

what is the formula to calculate kva genset required for a given load in kw.

11461

Un-Answered Questions { Electrical Engineering }

hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

1660

what is the correct method for the outdoor termination of 19/33 KV HT cable step by step?

1693

How to calculate Temp from Resister from PT100 equation,

1272

List of equipments required foe industrial repair lab.

1549

what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

1543

sir plz send some previous year questions of jspl.

1529

What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2

23

what rectifiers is and what are the types of rectifiers?

676

what is different between phase and netural

1544

WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

1664

why using transformer and thyristor switch in 3 phase apfc panel

2440

What is the function of the generator exciter?

954

What is the RME and explain the full form and what is the RME work?

2218

Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

1765

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

1676