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...?
Answers were Sorted based on User's Feedback
Answer / naresh
it is completed through therails to ground through the
wheels
Is This Answer Correct ? | 20 Yes | 0 No |
Answer / jagadisha.n bmsit
Obviously there should be neutral connection to flow of
current. Positive is connected from overhead line and
neutral connection is from track through wheels..
Is This Answer Correct ? | 10 Yes | 0 No |
Answer / sreenadh
actually the top most line is the power line.the second
line is also power line.the connecting wires between the
two lines are called droppers.droppers give power from top
line to the second line.the negative comes from the
trails.at equi distant points they are earthed by iron rods.
Is This Answer Correct ? | 10 Yes | 0 No |
Answer / 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
Is This Answer Correct ? | 4 Yes | 1 No |
what is the difference between inductive load and capacitive load?give me some examples in general
What are the procedures followed for underground cable laying.....???
HAI,HOW TO SET THERMAL OVERLOAD RELAY FOR DOL STATRTER FEEDER AT START AND RUNNING?
Is it possible to run HT motor through LT VFD (LT VFD supply given to Transformer LT side and transformer HT side connected to motor)
Is it possible to make 0.75KW motor earthing from MCC panel by using the 1.5 SQMM, 4 core cable, means 3 core for 3 Phases & 1 core for Earth terminal?
meaning of two lines in between the transformer single line diagram??
How much heat will a 2500 KVA transformer will generate ?
E.B sending end to receiving end 33kv ug cable laid 8Km,receiving end to ss1,ss2,ss3,ss4 all are Approx 800 Mtr,can go for 33KV to 430V or 33kv to 11kv in receiving end and 11kv to 430 near ss ,which one is good for technically and economically.
what power factor should we maintain to get maximum benefits our organisation load is 10 MW? is it best to maintain the PF at .96 rather than Unity to save electricity bill?
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
what is the diffrence between single phase and three phase
why genarator genarating voltage 11 KV?