Interested to Buy Any Domain ? << Click Here >> for more details...
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
- 9 Answers
- 10950 Views
- I also Faced
- E-Mail Answers
Answer Posted / 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 |
Post New Answer View All Answers
What is the meaning of utility ground and clean ground? How the distribution panel is grounded?
we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???
what about GD square and its important for motor design?
bitumar
what is difference between line differential and transformer differential?
What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?
Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.
what are the applications of PLC?
what are the analog quality input for protection function?what are minimum reqiments?
Name the component u would expect to find in a switchgear assembly?
what is metering cum synchronizing panel and how it is used?
how to do the ductor test?
draw singleline diagram of star to delta and dol starters
When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?
What is PEC??Applications........
