Interested to Buy Any Domain ? << Click Here >> for more details...
Why only 1ph,2ph,3ph supplies are universally used?? Why
not 4ph or 5ph??
- 4 Answers
- 9055 Views
- I also Faced
- E-Mail Answers
Answer Posted / ibrahim hassib
When the generator is fitted with 3 windings equally spaced
at 120 degree, the resultant 3-ph electric power is 1.73
times the same electric power produced if you fit the
generator with one winding for the same rotation of the
machine. If we would add more windings the increase in
electrical power output will not yield a significant
increase in electric power to justify the cost of the
additional windings and the associated complexity of design.
So, it was universally agreed that fitting the generator
with three windings is the most economical solution and the
three phase power science was born from that point on ..
| Is This Answer Correct ? | 9 Yes | 2 No |
Post New Answer View All Answers
If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")
how to find three phase complex power in per unit and MVA?
How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current
What are the different types of transformers?
What is the main use of rotary phase converter ?
If increased the frequency up to 1000 then what changes shows in voltage?
what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/
in what type of applications v can use q meter?
for opening electrical shop, tips needed.
I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com
advantages & disadvantages of Lagging and leading power factor .
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
How phase to phase voltage comes 440V.
use of choke in APFC panels
What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?
