Zero sequence voltage phase failure protection circuit 3
Source: InternetPublisher:红水杯 Keywords: Protection circuit phase failure protection BSP Updated: 2021/12/31
This circuit uses an artificial neutral point, that is, the three capacitors Cl, C2, and C3 are connected as neutral
oxygen. It is suitable for phase failure protection of △-shaped wiring motors .
In the figure, the potentiometer RP is used to adjust the operating voltage of the DC relay KA to ensure the reliable closing of the relay KA.
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