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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is working process of star delta controlling circuit ?

 1389

why pure sine wave inverter used for desktop ?

 1 2834

What is the maximum load an electric engine can pull??

Oil India,

3 5591

During the testing of Electrical Equipment the test cables should not touch the equipments. For that testing engineers use to cotton rope to hang the cable from measuring Equipment to testing equipment terminal. Please explain the technical reason for this practice.

 1 3495

what is wore of PLC ?

 1 3024

Mechanism of Wye Delta Starter?

ABB,

2 4242

IN a transformer during power supply how the LV and HV bushing works??

CSEB,

3 4086

why do we require two lines one phase and a neutral for an ac transmission..is neutral potential zero..?if yes y carry a neutral line from generating station itself...why dont we take it from ground

 1 3051

why two wires are wound alternately to each other in single phase wires?

 1 2586

What is neutral earth voltage of transformer and what should be the value

 3 3953

What is GND Transformer?

 2 4203

Which do you think is the most significant cause of energy loss in a factory?

 1753

How could a garment factory benefit from renewable energy

 2342

what is a kit kat fuse?

TCS,

5 26354

why Ac current is alternating in nature?(or)why alternating current changes its direction?

APGenco,

3 6724

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Un-Answered Questions { Electrical Engineering }

before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

1174

What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?

1712

how we can do the insulation on secondary of ct explain and so that tan delta will within limit

1440

What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2694

define reflection method?

1488




If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

2026

slipring induction motor starting time Lrs operating why lrs starting time lrs outer body didn't get shock

1458

Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

2385

what is the difference between active power and reactive power and apparant power in practical as well as theoritical

1437

what is the use of permanent magnet generator in exciter

1689

What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

1499

What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

1150

is that any software calculator to calculate the size of cable

1854

What is pole of the system?

659

why star point of HT motor not earthed?

1739

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