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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between 11kv and 13.8 kv? why we can't used one of these 2 sources?

2 3866

What is maximum rating of transformer ?

2 4276

What is reason of rating of transmission line multi pal of 11 like as 11/33/66/220 ? Why not use 75 kv 23 kv line in power system ?

Apollo, Balco, Bhel, Vardhman,

1 1766

what is the electricity

3 3164

IS THERE ANY ELECTRONIC CIRCUIT TO REDUCE THE NEUTRAL TO EARTH VOLTAGE BELOW 3V ?

1 1978

Dear All, In a 400V power system, ratio of three current transformers installed incoming switchgear is 4000/1. Maximum three phases short circuit current of this system is 48kA. One CT is installed on neutral of upstream transformer (6/0.42kV, solidly earthed) for 51G protection. Would you please inform me about the correct CT ratio of this current transformer (on neutral)?? Thanks a million

2 3016

ac and dc motor advandtage,disadvantage,aplication

Apollo,

2 2991

what would happen nif we increase or decrease the capacitor of a flood light.

1 2051

The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1011

What will happen to magnitude of voltage of other two phases if one phasw will touch the ground?

Construction, NPCIL,

3 3529

What are the factors considered for the selection of cable?

NPCIL,

6 25946

Draw torque - speed curve and load curve of induction motor? mark operating point ?

1065

why distribution transformer are of DY11 type?

4 10944

how to check a three phase induction motor by multimeter & megger?

2 17733

Short circuit current of 2500 KVA 11/0.415 KV transformer both Secondary and primary side. best regards. Ali

1 2325


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Un-Answered Questions { Electrical Engineering }

Is potential difference materials property ..? if yes tnen how.. explain brifly.

1018


difine electrical ballast in HPSVL

1128


HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

1242


hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????

934


What is the fault or needs to be done when frequency in ac drives is not changing?

781






H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

976


What is signal flow graph?

219


i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

920


along with technical test papers

680


How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

1037


what is mean by drives?

1035


how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

1084


Write down the name of 2 lady Bir Pratin of Bangladesh

1019


Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.

1203


What is the meaning of HT Trivector Meter ?

1488