Interested to Buy Any Domain ? << Click Here >> for more details...
Why we choose 400kv,220kv,132kv,66kv,33kv transmission
voltages for transmitting power. Why not other voltage
levels.
- 21 Answers
- 63263 Views
- College School Exams Tests, HC, HCL, Jaypee, JPMorgan Chase, I also Faced
- E-Mail Answers
Answer Posted / eng.tha&
in transmission We need to convert the Generating voltage
to Transmission voltage
because generating voltage has low voltage but high current
and we use a step up transformer after Generating unit to convert to high voltage and low current.
By reducing the current we get to minimize the losses at lines
since P=I^*R (R=Resistance of transmission line)
and the second benefit of decreasing the current by reducing the cross sectional area of cable (high current need high cross sectional area )i.e= reduce the cost
finally
at the Receiving end
we used a step down transformer to convert to low voltage and high current
we transmission electricity from on place to another with less losses and efficient method
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
what is sustainable current of any conductors . a bare busbar or pvc cable has different sustainable current .
how to meas-our losses for L.T & H.T
What are the different circuits in thermal power plant?
to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????
operation of protection relay watchdog contact?
If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?
What descriptive information does the NEC require to be marked on all conductors?
what is sevice settings for mccb?How can be it setted?
what happen ehen synchronisation is done at below rated speed
what is the meaning of impedance protected in instrument cooling fan
PLEASE SEND THE PREVIOUS YEARS QUESTION PAPERS OF RRB JUNIOR ENGINEER-ELECTRICAL
What products have you designed which have entered high volume production?
What is servo motor? what is its purpose?
at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)
