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Electrical Engineering Interview Questions
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explain Uninterrupted power supply detailed electronical operation with circuit diagram


1 4966

requirements for making parallel operation of Uninterrupted power supply


2 3736

What is the significance of 3.5 core cable ????

Intelux Electronics,

8 17751

as per standards how many neutral earthings and body earthings are needed.please help me

2 3086

arcing is due to only capacitance or it is due to both inductance and capacitance? explanation.

2 2697

what is the back ground of transformer working? applying voltage to primary and emf inducing in primary and secondary? how it is possible? please answer me with scientific approach?

5 3682

in industrial lighting in each circuit how many lamps can be given? and how much load can be put on each circuit? is there standard for this? please help me with the standard description?

3 3460

why use delta star x-mer in distribution system.

3 10276

What is ment by KVAR and what are the advantage&dis- advantages of KVAR

2 10111

What will be the current after disconecting the bus bar or cable before discharging ?


2 3659

which type of amplifiers are used in multimete?



How to measure the Harmonic Distortion of UPS ie THD?

MG Tech, NIC,


Best way to measure the Soil resistance of rocky soil, three probe method and four probe method


Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???


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Un-Answered Questions { Electrical Engineering }

how diside ct mf exmp.200/5 ct


what is the difference betweem star connected motor & delta connected motor?


please send the IS strandard for electrical to


plz tell me,ht and lt panel terminals in substations explain beiefly


Why 11kv to be generated in generation station


What is the selection process of breakers. Can any one please give a formulation on same?


induction 3 phase motor terminal connection


wat is d diffr btw shunt coil and trip coil in VCB?


During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.


Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?


An automatic water heater is an example of which type of control system?


Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.


i wasted one year for the job after completed my btech what can i say about 1year time in interview


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?


Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.