Leafmotor

Three-phase asynchronous hub motor controller start-up
(1) direct start
Start-slip rate of 1, induced electromotive force in a large rotor, the rotor currents are also high. When hub motor controller starts at rated voltage, known as the direct start, direct start of the current is about 5-7 times the rated current. In general, the rated capacity of 7.5kw to small asynchronous hub motor controller can be directly started.
Starting control circuit used direct electrical appliances including combination switch, button, contactor relays, thermal relays and fuses. To master their individual characteristics, control of both the fuse fuse rated current calculations.
Direct-start control circuit: control of its control principle.
(2) squirrel cage induction hub motor controller for reduced voltage starting.
Master star – start angle and step-down autotransformer starter works
(3) wound three-phase asynchronous hub motor controller start-up
General understanding.