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we hav seen in electric engine of trains only 1 wired slidng
conecctn is there frm ovrhead line,howevr to complete a ckt
in dc postv n negtv two conection has to b there...so where
is tht negative is been connectd or where it is grounded...?
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Answer Posted / sreenivas koramutla
There are two line called Catenary wire and Contact wire.
Both are power lines. we feed voltage to catenary and Pento
of Engine is in contact with Contact wire. In between lines
there are Dropper wires. This is Phase and Neutral connects
from Track. This is Single phase supply
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