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2Y-△ connection two-speed motor contactor control circuit four
Source: InternetPublisher:公子李 Keywords: Control circuit motor contactor control BSP Updated: 2021/09/27
The circuit is shown in Figure 3-99. This circuit can start the motor at low speed (Δ-shaped connection), and then automatically increase the speed and
put it into high-speed operation (2Y-shaped connection). The interval time from low-speed start to high-speed operation can be adjusted by the time relay KT.
In the picture, SBi is the low speed start button.
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