why ac wave is sinusoidal not square or triangular wave what will be reason
The a.c. electricity is produced in an a.c. generator which transform mechanical energy [from a turbine or diesel motor or else] into electrical energy.
In a synchronous generator the rotor produce a magnetic field -as permanent magnet or from d.c. current flowing through wired bobbins.
Let's take a single loop of the stator coil and expose it to a rotating magnetic field.
The EMF [electromotive force=induced voltage in the loop] =E=-dΦ/dt where:
Φ=magnetic flux through one stator [armature] loop
E=Electromotive Force [induced voltage]
Since the armature [stator] loop does not move then the magnetic flux shared with the loop is changing with the angle between loop surface and rotor pole surface. Φ=BxAxcos(α).where:
B =magnetic flux density produced from magnetic pole
A=magnetic pole area
rpm=no.of rotations per minute
Finally, E=BxAxsin(ωxt) where ω=2xπxpxRPM/60 p=no.of pole pairs t=time
That means the produced voltage depends on sinus of time.
Is This Answer Correct ? | 0 Yes | 0 No |
Can a 5 core cable one end with a 32A 3p+N+E plug and the other end 32A 3p+E be used on a generator?
What is OLTC AND RTCC and it's function?
what is volt drop formula?stm
is there any current and voltage drop on liquid resistance starter water/soda tank ?
Which are the major Nuclear power accidents in the world?
Wat wil happen if Transformer is operated at 100 HZ Frequency?
What is the slip speed?
what is the most permissible winding temp when we conducting a generator load test?(condition no load)
The earth pin of some three pin plugs are seen split. why?
What is thermal overload relay
What is Earthing?
what is the Transformer Impedence?How can calculate?