Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is buscoupler adopter panel????

5 5027

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 6474

What is the function of an exciter in a generator?

3 10337

What is an exciter and how does it work?

TATA, Lotte Chemical Titan,

7 79556

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

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

22 124529

What is encoder, how it function

Coca Cola,

9 44821

what r the checklist while installing a 380 kva DG set



what r the checklist while installing 500 kva transformer



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,

40 364367

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


11 12984

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

11 7550

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 30426

what do u mean by bus bar?

6 7684

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


6 8793

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

Maruti Suzuki,

2 2881

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable


1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)


What is formula calculation size cable wire ?


What is the technical difference between On delay timer and a Star delta timer?


at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.


How we can change the direction of rotation of Induction motor? Prove it using graphical


how we calculate the withstansing current capacity of wires&cables?


why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?


what is KA rating and how can we choose switchgears on applications


How to Decide(calculate) Bush bar size for copper and aluminiam ?


how to failure indution motor insulation & how to improve heat in motor insulation


There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.


How LT megger works ?


What is the two pole structure?


What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?