
Three-phase generator
Demonstration three-phase generator with manual drive: seven experiments from obtaining three-phase current to star and delta circuits.
The apparatus consists of a generator with stator windings and an electromagnetic rotor, a flywheel with a handle, a belt drive, a base with output terminals and a load panel with LEDs. The apparatus supports seven demonstrations: generating three-phase alternating current, observing the phase shift through sequential LED flashes, assembling star and delta circuits with a replaceable load panel, the ratio of phase and line voltages, the dependence of EMF on rotor speed, and operation as a low-power three-phase power supply. Designed for demonstrations on electrodynamics in the physics classroom.
- 1.Base with output terminals - 1 pc.
- 2.Generator: stator with windings and rotor-electromagnet - 1 pc.
- 3.Flywheel with handle (manual drive) - 1 pc.
- 4.Belt drive (flywheel - rotor) - 1 pc.
- 5.Load panel with LEDs - 2 pcs.
- Generating three-phase alternating current by rotating the electromagnet rotor inside the stator
- Phase shift between three phases (one-third of a period): alternate flashes of the load panel LEDs when the flywheel rotates slowly
- Star connection in a three-phase circuit: assembly using an interchangeable LED load panel
- Delta connection in a three-phase circuit: assembly using an interchangeable LED load panel
- Ratio of phase and line voltages under load
- Dependence of the generator EMF on the rotor speed: change in voltage (LED brightness) at different flywheel speeds
- Using a generator as a low-power, low-voltage three-phase power source
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