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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to work meggar?

Anand I-Power,


What is the problem of internal failure in ship engine telegraph system norcontrol?



typically in power distribution substation. 1- Any idea how would be the graph of capacitor bank consumption verses time through the day . 2- How is the switching ( on and off ) of the capacitor bank, per need?



What's difference between a400amps lt contactor and a400amps lt circuit breaker

Indian Railways,

3 2238

What is fault clearing time for Current Limiting Moulded Case Circuit Breaker?.

DAE, Hindalco,


why we use delta connection in transformer


2 2165

Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

Classic Infotech,


i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?

Crown Buildtech,


which is better to use svc or synchronous condenser why ?


neutral carrying current more than phase in 3phase supply.i want to know the reason?

2 1601

Dyn1 transformer vector group testing how to do


the parts of transformers ?

Bhel, Facility management,

1 2027

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.



Why short ckt does not happen when solenoid coil connected to supply. as its a wire only.


1 1565

what things to be considered when designing UPS

Aplab, Veta Kipawa ICT Center,


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Un-Answered Questions { Electrical Engineering }

How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me


How test for Ddo vector group test condition?


what is per unit calculation?looking for simple and strong explanation thk u


Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer


What does quality factor depend on in resonance?


is there any current and voltage drop on liquid resistance starter water/soda tank ?


the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?


bsec exam syllabus (mis)


What is meaning of out of phase (making & breaking) capacity And how to calculate


In how we connect watt meter for open & short circuit test of a single phase transformer.


Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault


I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.


which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?


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


What types domain of laplace transforms? What behavior can laplace transform predict how the system work?