What is the EMF equation of alternator?

Answer 1

EMF equation of DC GeneratorE = (ΦNPZ) / (60 * A)

where,

E = e.m.f induced in any parallel path in armature

Φ = flux per pole in weber

N = armature rotation in revolutions per minute (r.p.m)

P = No.of generator poles

Z = total number of armature conductors

A = No.of parallel paths in armature

Answer 2

E.M.F.(rms)/phase = 4.44* Kp * Kd * Fi(Flux)* f * T Volts

where Kp is the pitch factor which is the ratio of the coil voltage to the voltage of the full pitch coil.

Kd is the distribution factor; reduction in the emf due to the distribution of coils.

Fi is the flux, f is the frequency & T is the turns.

Answer 3

e=N d/dt(flux linking with the coil)

When the magnetic flux linking with the coil, having N number of turns, changes with respect to time, the emf will induced. This is stated by Lence law.

Answer 4

the emf equvation of single phase transformer is 4.44fNaB

Answer 5

Eph = 4.44 f Nph Φ (Volts)

f - frequency

Nph - no of conductors per phase

Eph - EMF induced per phase

Φ - flux linkage

Answer 6

e= N*change in flux/ change in time N-is the number of loops

Flux equation is BA cos(angle) A-Area

or

e=Blv v-is the velocity B-is the magnetic field l-is the length