why 3 phase is preferred than 1 phase?
Answers were Sorted based on User's Feedback
Answer / vinodh.t,sathavahana ispat ltd
1.constant power :in single phase power varies sinosoidally
from zero to a peak value at twice the supply
frequency.this pulsating nature of power is objectionable
for many application in 3 phase the poiwer supplied at all
instants of time is constant
2.the output of a 3phase machine is greater than that of a
single phase machine for a given volume and weight of
machine.
3.the 3 phase motor are much smaller and cheap than single
phase
Is This Answer Correct ? | 18 Yes | 1 No |
Answer / mahantesh
Three phase carry large current than a single phase current,for larger loads the cross section of conductor is larger in single phase than three phase and single phase cannot be transmitted to larger distance than the three phase,line losses are small as compared to single phase so we prefer three phase instead of single phase
Is This Answer Correct ? | 15 Yes | 5 No |
Answer / manish singla
i agree with Reply by Mr. Vinodh.t,sathavahana Ispat Ltd.
Warm Regards,
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / prasad.v
because in one phase if there is any shortage or short
circuit may happen apart from this if we use one phase
current there may be more possible to low voltage we can see
that some house light will be more dim so if we three phase
if any of the has low voltage we can change the phase so we
are preferring 3 phase than 1 phase
Is This Answer Correct ? | 6 Yes | 21 No |
how to calc. current for 5MVAR,50hz,33kv
define B types and C types in MCB ?
I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions
what are the merits and demerits of synchronous motor over an induction motor...??
Inductor and capacitor ........ power in one phase and ...... it in another phase. if any body found this gaps answer.please sent me to habib_eu2008@yahoo.com
ELECtrical
2 Answers Bahwan Engineering, Bhel, Electrosteel, NBCC, Qatar Airlines,
Why cpaciter opposes sudden changes in voltage?and how?
Why have the transformer one earthing to their neutral? Why have the transformer many earthing to their body?
what is encoder & its use?
why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.
Why the electron flow in reverse of current.
What is an Automatic Voltage Regultor & what is its use? What are the general componets we use to design an Automatic Voltage Regulator..What are the factors to be considered for its design?