why some transmission lines have 7 wires n why some have 3 n 4??

Answers were Sorted based on User's Feedback



why some transmission lines have 7 wires n why some have 3 n 4??..

Answer / prasu2880

For D/C(Double Circuit) Line having 6 phases & one Earthing
but S/C(single Circuit) line having 3 Phases & on Earthing

Is This Answer Correct ?    15 Yes 4 No

why some transmission lines have 7 wires n why some have 3 n 4??..

Answer / surya

FOR SINGE CIRCUIT LINE 3 CONDUCTORS AND 1 NEUTRAL WIRE USED.
FOR DOUBLE CIRCUIT LINE 6 CONDUCTORS AND 1 EARTH WIRE USED.
BASICALL FOR DISTRIBUTION PURPOSE SINGLE CIRCUIT LINE AND
FOR TRANSMISSION PURPOSE DOUBLE CIRCUIT LINE USED.

Is This Answer Correct ?    12 Yes 3 No

why some transmission lines have 7 wires n why some have 3 n 4??..

Answer / sanjay jangra

question is about transmission line.

If a 220 or 400kV line is having single circuit. Then there
will be 4 or 5 wires. 3 wires for phases and 1 or 2 ground
wires depending upon the tower structure.

Is This Answer Correct ?    3 Yes 3 No

Post New Answer

More Electrical Engineering Interview Questions

what is reactive power?

2 Answers   Vestas,


which type motor r use in the celling fan.....

6 Answers  


At the time of 1st charging of transformer, there were huge inrush current, so why at that diffrential relay are not operated? Why?

3 Answers   Adani,


what is the relationship between phase & neutral

0 Answers  


how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

0 Answers  






WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

3 Answers   Birla, Reliance,


checklist of ELCB

1 Answers   EECE,


What is Instantaneous Earth fault relay,how will work

0 Answers  


what happens when one of the phases out 0f 3 phases been removed under working condition and no load condition will the machine run if so plz send me why

2 Answers  


What is Hi-Pot Test for Grid Station HV Equipments?

2 Answers   Siemens,


please explain how to do 'pole drop test' on generator?

0 Answers  


if one potential missing in energy meter , how much % slow the energy meter?

1 Answers   NTPC, SK,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)