Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is buscoupler adopter panel????

5 5284

What is Exact meaning for Full load Efficiency and Maximum Efficiency of Transformer? Is there any Difference between? If yes ,please provide with formulae?

Techno Labs,

2 7129

What is the function of an exciter in a generator?

3 11054




What is an exciter and how does it work?

TATA, Lotte Chemical Titan, FCUK,

7 82159

What is the difference between MCB & MCCB, Where it can be used,

Siemens, ACB Group, Badve, Bajaj Electricals, Hensel, SR,

22 125957

What is encoder, how it function

Coca Cola,

9 45892

what r the checklist while installing a 380 kva DG set

Pepsi,

2589

what r the checklist while installing 500 kva transformer

Pepsi,

996




I want formula to calculate cable size as per load given in kw & amp.I searched many sites but didn't right answer.Plz reply me asap.

MEIL, Lanco, BEL, Biocon, Tata Motors, Sabic, DLF, BRB Cable, Polycab, L&T, Armco, BGS, Doshion, Electrical, Gold Roof, Voltas, Oman Cables Industry SAOG, PK Services, SLV, UMIC, Vertex, Vega, UEM, Crystalline Chemical Industries, System Electrical,

41 380474

what happens when a power transformer neutral earthing broken???

MacLellan,

11 13809

what is power factor? whether it should be high or low? why?

11 8066

what are the various types of earthing? plz give brief detail of all. also post pictures if u have.

Aster Teleservices, Era Infra Engineering, Micron Electricals,

22 31191

what do u mean by bus bar?

6 7922

what is the relation b/w KW and KWH? plz explain with example.

FAG,

6 9114

what is the principle of operation of synchronous motor and generator? explain in detail.

Maruti Suzuki,

2 3167


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Un-Answered Questions { Electrical Engineering }

What is your acheivements

823


In parallel operation time both NGR’s close or not close if both close what will happen

2427


we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

1183


WHAT IS THE CURRENT CARRYING CAPACITY OF 2.5/3 CORE HI TUFF CABLE,WILL IT SAFLEY CARRY 8.6 AMPS OVER 120 METRES,CAN YOU ALSO ANSWER WITH FORMULA FOR WORKINGS OUT ,THANK YOU 3RDYR APPRENTICE.

2114


difference between the applicability of nortons and thevenin theorem

652






anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

663


I want single line diagram for AMF & DG syncronizing panel

5187


need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

622


Hi, My plant daily consumption is calculated as 3.8MWH but my supplier has sanctioned an power of 2.6MW per day. how can i equal or distinguish this two factors

666


What are your future plans for the company if permanently employed?

845


how to deside the capacity of chock for drive?

783


is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

2474


how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?

857


As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

592


what is the star delta connetion and how can do it a three phase motor with control witing with picture

989