AC contactor low voltage starting circuit 2
Source: InternetPublisher:桂花蒸 Keywords: AC contactor low voltage starting circuit Updated: 2021/09/26
It just adds a transfer switch SA to the circuit in Figure 6-20 . Its purpose is: when the grid voltage is low, set
SA to the "1" position, which is the same as the circuit diagram 6-20; when the grid
voltage drops less, set SA to the "2" position to restore the AC connection.
The original circuit of the contactor, that is, AC starts AC operation. Users can choose DC starting or AC starting methods according to
the voltage fluctuation .
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