why transmission voltages are in multiple of 11kv?
Answer Posted / tom reji
3. The power loss in line is proportional to
resistance and square of current. (i.e. P LOSS=I^2*R).
Higher voltage transmission and distribution thus would
help to minimize line voltage drop in the ratio of
voltages, and the line power loss in the ratio of square of
voltages. For instance, if distribution of power is raised
from 11 kV to 33 kV, the voltage drop would be lower by a
factor 1/3 and the line loss would be lower by a factor
(1/3)^2 i.e., 1/9. Lower voltage transmission and
distribution also calls for bigger size conductor on
account of current handling capacity needed.
4.
Is This Answer Correct ? | 7 Yes | 18 No |
Post New Answer View All Answers
WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?
in conventional fan regulators how the current varies with speed?
what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?
what is the difference between earth leakage and earth fault?
What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.
At full load wat is the motor p.f And at no load will is the motor p.f?
is it possible to say motor horsepower number without seeing name plate(when name plate damaged)
is there any chart showing the suitable cable size according to AMP and length ? for three phase motors
This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.
what about SAP/MRP regarding manufacturing of electric motors and all drives?
What is the meaning of dedicated earthing?
What is the difference between security constraint unit commitment and security constraint optimal power flow?
how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.
why cable i burning without tripping. how can protect led street lights
Mention what are the different colors on wires indicates?