Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Is it possible that Generator trip but Turbine not trip.Give explanation.

Essar,

1 3999

how can 3phase motor speed can be controlled without vvf drive?

1 4365

improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor

2 4816

where does core based current transformer is used? and what is the value of lux in a work station?

Space Matrix,

1 3301

Does the Impedance of the source affects the THD

1 2726

what may the reason for vector shift in a generator?

1369

What is DPR relay, And what for??

Engro,

2 4935

i have 60Hz motor, can i run it at 50Hz power supply ???

2 4333

Explain difference between stand by earth fault and residual earth fault protection?

1507

what is difference between ac1 and ac3 contactor and why it is needed to be selected?

1 15343

How can we define 'Phase'

4 4920

what is accuracy ? in any meters , coils accuracy . how can u defined that ?

Adani,

1902

power formula

1 2996

what mean by power factor

2 4149

how to maintain ht line?

1511


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Un-Answered Questions { Electrical Engineering }

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1322


How will polarity test of Dy5 Transformer ?

1760


What is the armature mmf in a D.C machine?

771


bsnl tta exam question

1432


what is the use of the circle diagram

4463






1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

1200


What are books to be referred for KPTCL exam?

3200


What are the Full Forms of TVM, MTL, CVT ?

885


3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1460


1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends

1348


which protection function should measure RMS value of current&DFT value of current?

1441


Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core

2465


What is the maximum operating temperature for a thermoplastic insulated cable?

616


Earth leakage relay basic knowledge principle

1715


WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER

1579