Calculate the rms value of armature currents needed

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Reference no: EM131265981

1. A three-phase ac linear motor has armature winding wavelength of 30 cm. The supply currents have a frequency of 75 Hz.

(a) Calculate the linear velocity of mmf wave.

(b) The vehicle velocity of the motor is synchronous type.

2. The armature of three-phase linear motor has a winding wavelength of 25 cm and winding length of six wavelength. The

3-phase winding has 240 turns/phase with a winding factor of 0.92. For an air-gap 0.95 cm it is desired to have peak fundamental air-gap flux density of 1.25 T. Calculate the rms value of armature currents needed.

Reference no: EM131265981

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