For single phase induction motor, m=1

o/p = eff * i/p

For three phase system, Input voltage could be 440 volts.

Full load efficiency usually varies between 0.82 - 0.93

Full load pf varies between 0.82 - 0.92

(Assumed) change it according to your requirements.

B_av = total flux in the air gap /area of flux. For 50HZ machine the value of B_av lies between 0.35 - 0.6 Tesla.

ac = total armature ampere conductors / armature periphery at air gap. It varies between 5000 - 45000 ampere conductors per meter.

No of poles must not be less than 2. And must be even numbers.

Generally for small and medium size motors the number of slots per pole per phase lie between 3 to 5. The narrow range is 3 to 4.

Rotor slots must be one of the given calculated values. The difference b/w stator slots and rotor slots should not be equal to 0, p, 2p, 3p, 5p, 1, 2, p+1, p-1, p+2, p-2 to avoid synchronous cusps, magnetic locking, noise and vibrations.

The current density of stator conductor is usually assumed between 3 to 5 A/mm2.

space factor = copper section per slot/area per slot. The value of space factor varies from 0.25 to 0.4.

Flux density in the stator tooth is between 1.3 to 1.8.

Flux density in the stator core is between 1.2 to 1.4.

Flux density in the rotor tooth must be limited to 1.8 Tesla.

Flux density in the rotor core is between 1.2 to 1.4 Tesla.

Auto filled value is for Copper conductor. For any other material need to change this value.

For a full pitched windings.

To separate D and L for this product a relation has to be assumed. a) To obtain minimum over all cost 1.5 to 2.0. b) To obtain good efficiency 1.4 to 1.6. c) To obtain good over all design 1.0 to 1.1. d) To obtain good power factor 1.0 to 1.3.

Length of the iron core is a little smaller than the overall core length. Stacking factor = ($L_i / L$)

Current density in the rotor bars may be taken between 4 to 7 A/mm2.

Current density in the end ring may be assume as 4.5 to 7.5 A/mm2