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 |
What is Autodialer used in FAS????
In Plug used in house,Why Earth of the plug more thicker & deeper?
what is the function of governor in dg set
1 Answers Igarashi, Medispray, Reddy Labs,
why the voltage and current in a long transmission line are called travelling wave?
In winter we seem lightly an electric shock when we touch to doors(sometime)
Capacitors are used to ... -Reduce the bill of the farmer -Improve the PF
Electrical Engineering
0 Answers Gamesa, Medha Servo,
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
what is the use of breather in transformer?
When One Phase PT Missing (voltage drop ) this time current is zero of This phase(PT Missing Phase) and current is Not Zero of other Phase but PF is always Low That Why
What is the difference between eath fault protection & Restricted Earth fault Protection?
How Can we calculate the rating of a cable?Show the formula?