AC REPULSION MOTOR:

Introduction:

• AC Repulsion motors belong to the family of Single phase motors with the difference that they have wound rotor, commutator & brush arrangement resembling dc motors. But the operation is same as single phase motors & the brush arrangement is provided for reversal of speed of motor.
• This Model is the Industrial/Educational model suitable for demonstrating to students the complete knows of the Basics, Components, Starting methods, Wear & Tear & Maintenance of these motors packaged in small rating.
• Students can make connections of their own with the help of the terminations provided for study of features viz Starting methods, Speed-Torque, Effect of Change of Brush angle with rocker, Effect of reduced voltage , Blocked rotor test.

Technical Specifications:

• Power ratings available            : 350W / 750W / 1KW /1.5 KW
• Voltage Input                         : 230V AC, 50 Hz
• RPM                                       : 1440 / 2880 RPM,
• Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1, Solid yoke.

LIST OF EXPERIMENTS POSSIBLE

• Starting by DOL Starter
• Starting by reduced voltage starter.
• Load test & No load test of machine
• Speed-Torque Analysis
• Change in speed with Brush angle change
• Zero speed point with voltage applied
• Reversal of speed with brush angle.
• Efficiency Analysis
• Blocked rotor test
• Cold Resistance & Hot Resistance
• Motor Operation parameters
• Basic Overhauling Know how.