the electric traction poles having 3 cables n two cables
touches with a insulator (or any) another one separated but
it will be running 1-phase why?
Answers were Sorted based on User's Feedback
Answer / rajesh
in pole
one is the main wire and above it is the holding wire for
holding and maintaining tension , it does not have any
electrical function
it is according to electric railway traction standard hence 2
wires are used
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Answer / k.linga reddy
Dear rajesh what about the another conductor? clearly explain me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz...
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Answer / jagan
In electic traction system , only one conductor is
hanged to the high tension wire and second is rail is
neutral or return parth
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Answer / rajesh
electric traction runs on single phase only ,so no 3 phase
question arises .
secondly in the two wires connected to a mast . one wire is
live wire i.e the wire which is touched by train is live
wire carrying 25000volts ac . the other qwire above it is
supporter wire which maintains tension and structure of
catenary ( traction design) . it is nuetral . when electric
train touches the live one ,ckt becomes complete and gnd is
returned to earth through track .this forms basis of track
ckt and block signalling.
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