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Single-phase motor winding tap L-2 connection two-speed circ

2016-09-04 18:01  
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Single-phase motor winding tap L-2 connection two-speed circuit
As shown in figure, in the L-2 connection, the governor winding LD and the auxiliary winding LA are embedded in the same groove, so they have the same phase. In the same slot, the governor winding LD is wound on the up position, the auxiliary winding LA is wound lower, and they have the same diameter. When SA is put to Ⅱ gear, motor speed is the maximu, the both ends of main winding LR are applied to the rating voltage; while it is in the position of I , LR is connected to governor winding LD in series, so the motor speed reduces.