TDS-9/11A Top Drive Motor

Adopt the most commonly used squirrel cage structure

•Composed of rotor shaft, silicon steel sheet lamination, conductor bars, top plate, etc.

AC Motor Principle

• Current flows through the Rotor bars and around the End ring

• Current flow produces Magnetic Fields around each Rotor bar

• Rotor becomes an Electromagnet with alternating

North and South poles

• Magnetic Fields of Rotor interact with Magnetic Fields

of Stator

• Current and Magnetic Fields of Stator and Rotor constantly changing

• As Stator Magnetic Field rotates, the Rotor and Shaft follow