why we use only sine wave in ac why we do not use other wave
forms
Answer Posted / bikash chandra pal
By virtue of construction & operation of generator, it
possible to generate Sine wave only.
When a non varying flux (fild flux) rotates & cuts the
stator winding(a winding of conductor ) , a sinusoidal
voltage wave induced in stator in turn current.
The appliences(eg Motor etc) has been designed to utilise
the same in the most easiest way with minimum losses.
of course we can generate voltage wave(in turn current)
which is not sine wave simply by variying the field flux.
But what will be the result of that?? Hermonics. which
will contribute increased losses, lesser life span of
equipments because of more heating, if we go in details of
the same , it will be seen that effect of non-sinusoidal
waves is not +ve. it is -ve .
Hence we only use sinusoidal wave(voltage & hence current)
I have just given a try to explain ,saying just whatever
came in my min in first go. if somebody can add some more
value to it please. we all will learn. please
| Is This Answer Correct ? | 69 Yes | 26 No |
Post New Answer View All Answers
plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?
May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?
What happen if 200 KVAR capacitor connected to power continuesly?
What are the advantages of a three-phase system over a single-phase system?
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
How would you relate your key competencies to this position?
state the working principle of incondenscent tube?
I am experienced with house and industrial wiring but I don't have any licence how can I apply an licence and which type of licence i can get i didn't complete deee just only experience
what is sevice settings for mccb?How can be it setted?
What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.
The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is
What do you mean by transformation ratio of instrument transformer?
rajha power sector details
Can u tell me design of switch yard
why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?