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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Grounding?

2 3276

how u change the vector group of a transformer like DYN1 to ynd11

2 4113

What are the types of circuit breakers ?

Genco, Super Max,

6 4573

Merits & Demarits of Oil circuit & Air circuit breakers ?

Genco,

1186

Two CTs 1600/1 and 35/1 are in series. while checking the ratio test of a CT(1600/1),same 1600A will also pass through the CT having ratio 35/1. Will it be harmfull to the ct(35/1),if yes , what will happen.CT secondary is shorted

3 4854

what is the function of Droop CT and where it is used?

Lanco,

3 30254

In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?

3 13421

Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

2 2413

pls define kvarh

2 4208

What is Grounding? any difference b\w earthing? if yes plz explan??

ABB,

3 5069

What is HVAC, PLS SEND DETAIL OF hvac.

6 4597

WHAT TYPES OF OIL(STRUCTURE) ARE USED IN POWER TRANSFORMER INSULATION?

4 3768

why neutral and body earthing of transformers kept separated? what is distance between two is required as per is?

6 20025

what is the pperating squvance in transmission line for circuit braker, isolater & earthing switch.

2 2438

what will happen if i connect or change line with phase terminal

1 2213


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Un-Answered Questions { Electrical Engineering }

what are the application of over current relay?

3295


What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.

743


Safety of dry type transformer

873


Form S and "c" license application both are same? @ tneb portal

787


What are the main significances of root locus?

171






1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.

1318


high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

1021


IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)

1141


When we need up only in o/p 440v, so why we use directly in 11kva in input?

797


in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

1115


How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?

891


BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C

1378


Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

545


if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?

1081


The synchronous machine excitation system explain

723