what is advantage of providing taping on HT side?
Answers were Sorted based on User's Feedback
Answer / e.subash
Dear sir plz check your transformer OLTC Technical
specification and simply i tell difference
Transformer ratio = 3.3 KV/ 33 KV
Current = 785 A / 75A
if i provided OLTC in Low voltage side means
1) What is the OLTC size
2) Quanity of the material and Size of Contact points and
other things (Copper)
3)Transitent surges Compare When fault will happen
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / erarun
As per standard we have to maintain stable secondary voltage means load for uninterrupted power supply. To maintain secondary voltage constant we have to change the tap to higher value when supply (Primary) voltage is low.So this is first reason.
And second reason is that always LT winding put near to the core to provide lower insulation material rather than HT winding insulation.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / abhishek goyal
Major factor is insulation of winding of transformer because
at the LV side it will nearer to the core or inside section
and HV is wound at the outer section of core or upper on LV
winding side. If we put tape changer at LV it is very
difficult to get there winding at outer portion (it will
effect on maintenance or manf point of view).
Other factor is if we change voltage at LV SIDE it should be
change very little as per requirement SO we will connect
tape changer at HV side for constant or stable voltage.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / rajan
Onely HT side tape volage high current low copper size less BUT LV side current high voltage low copper size ingrese
Is This Answer Correct ? | 0 Yes | 0 No |
How is the percentage impedence of a transformer fixed at design stage???
DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS
can we use engine degreaser for electrical motors?
How CFL &T5 tube light glows?
IF avr is voltage regulator of genset means why we are giving genset CT sense to AVR ?
The unit of quantity of electricity is the:(a) volt(b) coulomb(c) ohm(d) joule
We are using 4 MVA transformer and we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral, can we connect separate body earthing pit to other earthing pit (Equipment earthing)?
how induction generator works?
Explain Creepage Distance of Insulator
There is 3phase power cable from 1 point to the other point which is 100m away. Two point equipped with power meter and recorded 1st point is 205kW while the 2nd is 202kW and each phase average carry 400amps. To calculate the resistance of the 3phase power cable, is the formula using will be P=I2R?
What are the difference between off-load tap changer and on-load tap changer in transformer?
What does the temperature (30 deg or 35 deg celcius) mark on conservator of transformer indicates?