iron core

Winding

Machine base

generate electromagnetic torque

The direction of the resultant magnetic field is constantly rotating in space

Swap any two stator winding wires

Synchronous speed n0

Motor weight

model

Rated speed nN

Rated power PN

Way of working

temperature rise

Rated frequency fN

Rated circuit IN

Rated voltage UN

Rated power factor cosφN

Rated efficiencynN

Rated load torque TN

Slip ring voltage at rest and rated current of the rotor

When reducing the motor supply voltage

When the stator circuit is connected in series with resistance or reactance

When changing the stator power frequency

When the rotor circuit is connected in series with a resistor

Direct start (full pressure start)

Resistor or reactor step-down starting

Y-🔺Volume start

Autotransformer step-down start

Step-by-step removal of starting resistance method

Frequency sensitive rheostat starting method

Asynchronous motor voltage regulation characteristics

Losses and capacity limitations during voltage and speed regulation of asynchronous motors

Wide speed range

Good speed regulation and smoothness

The working characteristics (static characteristics and dynamic characteristics) can reach the same level as the DC speed control system.

High economic benefits