Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between electrical earthing and electrical grounding?

60

What is meant by bus bar protection?

43

Draw the single line diagram of the power station?

50




What is primary and backup protection?

53

How do you select the pickup value of the relay?

51

Give some example of fault limiting devices?

37

What is the difference between the transmission line and distribution line?

55

What is the bundle conductor?

47




What is the difference between resistance grounding system and resistance earthing system?

52

When are the directional relays used?

47

What are the common sources of energy?

47

How many types of faults are there in 3 phase power system?

60

What is meant by sag?

49

What is critical disruptive voltage?

45

What are the advantages of a three-phase system over a single-phase system?

43


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Un-Answered Questions { Electrical Engineering }

Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

922


I completed iti in2004 I was worked in A grade contractor can I get c licence

697


why cable i burning without tripping. how can protect led street lights

479


if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

1082


the winding of Generator and Motor is star or in delta ? and why

71






Why we are use dol starter up to 10 hp

372


What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

702


Atwhat condition reverse power relay will act?

1015


how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?

960


what is the main parts of transformer? how it is functioning? pls giv the ans briefly.

897


What are the three types of compensators?

52


A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.

1009


How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.

604


Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

3583


How to see the inductance in a transmission lines

1051