(1)Electrical power is generated in KV, power consunmed is
in MW and the transformers used are in KVA. How is KVA
converted to MW as power being consumed by the consumers?
(2)What is vector group of a transformer?
- 1 Answers
- 3580 Views
- I also Faced
- E-Mail Answers
Answer Posted / milinda4p
power is generated in MW range at ~11,12 or 15kV terminal
valtage and current in kA range in a generator.
so it gives power output in MWs range.
for the transmission in order to reduce the losses current
is reduced. this is done by step up transformers. it step up
the voltage to 132kV or 220kV or higher so the cuurent is
reduced by that factor.
these transformers have MVA range ratings.
then after transmission(long distance) this high voltage is
again step down to 33 or 11kV and again transmits to urban
areas.
Then again this 33 or 11kV is again step down to 400V (line
to line)For this only trnsformers in kVA are used.
vector group denotes the windin formation and phase shift
between primary and secondary
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
What is the difference between circuit breaker and isolator
explain the function of brush less dc motor?
Mention the disadvantages of low power factor?
what is the difference between droop mode and ischnorous mode in thermal powerplant?
If we have use two power cable for incomer, that time how many use cbct for earth leakage protection? 1 or 2 if 1 way? If 2 way?
what is interfacing in computer studies?
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage
(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)
iam working in power plant. In hot places tube lights are glowing at the end portion only. what is the reason for that?
What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw
Define delay time.
what is the function of bearing in dc mchine" and where it is placed
What is the automatic voltage regulator with servomotor?
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
