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1、12.1 Introduction,Fig.12-1 Three-phase AC induction motors,12.2 Construction of Three-Phase Induction Motor,Fig.12-2 Section for stamping of stator and rotor in induction motor,12.2 Construction of Three-Phase Induction Motor,Fig.12-3 Disassembled induction motor with squirrel cage rotor on its shaf
2、t a) squirrel cage rotor b) rotor laminations c)diagram of the squirrel-cage,12.2 Construction of Three-Phase Induction Motor,Fig.12-4 Wound rotor (slip ring) of induction motor,12.3 Principle of Operation,Fig.12-5 Production of torque,12.4 Equivalent Circuit,1. slip 2. in 3. hamster 4. wound 5. squ
3、irrel 6. irrespective 7. no 8. full 9. standstill 10. leakage 11. in 12. out,12.4 Equivalent Circuit,13. polyphase 14. Resultant,12.4 Equivalent Circuit,Fig.12- 6 Stator equivalent circuit for a polyphase induction motor,12.4 Equivalent Circuit,Fig.12-7 Rotor equivalent circuit for a polyphase induction motor at slip frequency,12.4 Equivalent Circuit,Fig.12-8 Single-phase equivalent circuit for a polyphase induction motor,
