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40kW fan Y-△ automatic conversion power-saving circuit
Source: InternetPublisher:睡不醒的小壮 Keywords: energy saving fan motor Updated: 2020/06/28
It uses the current relay KA that reflects the motor load and two time relays
KTi and KTz for automatic conversion. KTi is used as a delayed transition of the motor from Y to △, and its action time should be
5-10s longer than the motor starting time; KTz is used as a delayed transition of the motor from △ to Y, and its action time can be set at about 50s.
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