Interested to Buy Any Domain ? << Click Here >> for more details...
1KVA transformer of different frequencies of
50hz,100hz,500hz&1000hz. which one of these transformer has
big size? Give reason
- 16 Answers
- 39022 Views
- Ecil, Engineers India, MahaDiscom, I also Faced
- E-Mail Answers
Answer Posted / mohd shahid
See V/F= flux
Now Case I : Voltage is constant
if we increase the frequency thn flux will increase which
ultimately increases the hysteriss loss so in order to
dessipate the loss we hav to increase the transformer size.
NOW Case II: Flux is constant
In this case also size of transformer will increase with
increase in frequency bcoz voltage will increase in order
to maintain the constant flux. Hence more insulation will
be reqd so size ultimately increases.
| Is This Answer Correct ? | 3 Yes | 30 No |
Post New Answer View All Answers
what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;
Which material is used for the core of a transformer and why?
what is invertor supply and raw powersupply
11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??
what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?
Name two low frequency oscillators?
what is a bus post insulator? explain its application in a substation.
is there any phase difference occurs while primary and secondary side mutual induction occurs?
In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
working principle of oil startar
Why compensation is necessary in feedback control system?
