30-07-2014 дата публикации
Номер: CN103955246A
Принадлежит:
The invention discloses an electric heater control system and method. The electric heater control system comprises an electric heater, a contact, a controller and a switch, wherein the electric heater comprises a first phase line end, a second phase line end and a third phase line end, the contact comprises a first contact, a second contact and a third contact, and the controller comprises a detection end and a control end. The detection end comprises a first detection end, a second detection end and a third detection end, wherein the first detection end is connected between the first phase line end and the first end of the first contact, the second detection end is connected between the second phase line end and the first end of the second contact, the third detection end is connected between the third phase line end and the first end of the third contact, the control end comprises a switch control end, and the switch control end is used for sending a trip signal when any detection end ...
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