Electrical Engineering Interview Questions

what is the EMF

4519

if the power factor is .88 i want to increase the power factor to .99 what number of capacitor is to add?

5783

what factor is necessary during design of HT & LT MOTORS.

ABB, L&T,

5518

i am going to give the JSEB,RANCHI exam for power plant,so i need some samples of papers related to that,so please send me these papers by my mail id.

3015

How to calculate u.p.s load parsentage plz give me formula

4071

What is the difference b/w RMU & substation

6166

Hi, i want to know is meant by power quality? How it can calculated ? How we can improve?

3084

how does excitation of brushless alternator took place?

2654

why the substation require din electrical system?

3870

can we calculate the diameter of the cable by its cross section?

2852

please design a rectifier with batteries for below requirement and also explain how you calculate this solution, Load = 700Amp DC Backup time = 6 hour. please explain briefly ?????

GNFC,

3396

What does the temperature (30 deg or 35 deg celcius) mark on conservator of transformer indicates?

3405

How to calculate ant test the burden of Current transformer

NTPC,

1968

1.type of oil in used in transformer.

9701

at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?

ONGC,

1666

Un-Answered Questions { Electrical Engineering }

Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

1708

how to flameproof electrical motor on the shaft?

1537

why ten delta testing is carried out on power transformer

1363

33kv substation lay out details & line to line & line to earth measurements

2172

what maximum range of star & delta in hp or kw ?

1282

What is the difference between AC and DC injection methods for rotor earth fault protection

1694

What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

2295

How to calculate the multiplying factor for energy meter with ct ratio given

1547

How much no load current of synchronous motor

1603

what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?

1623

How is magnetic leakage reduced?

729

What is a diode?

631

Can any body tell gulf interview question for experienced electrical engineer ?

1630

Why derivative controller is not used in control systems?

657

solar inverters was not connected to the nuteral link .this nutwral possible to any other systems

1357