in trains i have seen the terminal which is connected at
the top of the train is positive .where is negative ?
track? i dont think so
Answers were Sorted based on User's Feedback
Answer / chandru_williams
The track acts as negative path. the circuit closes in the
track.
Is This Answer Correct ? | 4 Yes | 1 No |
Answer / rasiklal
Dear Ram,
In train return path for current is track only nothing else.
and in india we are using the same system for Electric
traction system. if you dont think so, so we can not change
the return path of current, pls chage your thinking ok
thanks,
WRB Engineer
Rasik Savaliya(GM)
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / yokesh
the nagative is track @ the train coming time some
induction was produced that induction was recived by the
booster transformer,
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / sujit ril
Dear Ramniveth,
For ur kind information, in a AC transmission line one is
phase and one is nutral so when we connct both current
flows from phase to nutral, hence it completes a path for
current to flow. As same consideration in Train transmission
lines, the above line provided is a phase now we need a
nutral to collect the current from phase and to make that
path complete . So here we r using the rail track as nutral
hence the current flows to the track and than to earth which
makes a complete path for current to flow. i think ur
question might be having ans now.
Is This Answer Correct ? | 2 Yes | 0 No |
it is right that the track itself acts as the return path for the current.
now what happen when u touch the railway track is "let me remind u that current always follows the path having minimum resistance" and the resistance of ur body will always b > the track
so u did't feel the shock.
ok
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / shashank
Dear All,
Not all traction systems work on AC supply. Wherever there
is a DC supply used, the return path is providedby the
earth i.e. the ground. Now comming to the vasics of
electrical engineering, Voltage is a unit for the Potential
diference (PD). PD itself says that there needs to be a
difference in the potential of both the electrodes for the
current to flow. It is not only that if the OHE has +ve
potential the system will work but even if the OHE has -ve
potential then also the system will work as automatically
the earth becomes the +ve eletrode.
But Indian railway uses +ve supply with referance to the
earth, hence we dont ger a shock as already the potential
is zero.
Whereas the AC Supply is concerned i agree to what manesh
has said. with the only addition that the neytral is
grounded i.e. earthed.
Shashank
Is This Answer Correct ? | 0 Yes | 1 No |
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