它采用双向开关和同期整流，得到了高功率因子、高效率和低高次谐波。
It adopts bidirectional switch and on time rectification, and obtains high power factor, high efficiency and low THD.
以sw7型开关配cy4型机构系统为例，列举出同期调整的三种方法，并分析其优劣，为检修同行们提供了理论依据。
Following the example of type CY4 actuator fitting in type SW7 circuit breaker, this article presents three ways of simultaneity control and analyses their merits and demerits.
在实际工程中，同期电压的取法采用的是“近区电压优先原则”，并使用相关的隔离开关和断路器的辅助触点来实现电压的切换。
In engineering application, the selection of the synchronism voltage is usually according to the principle that the nearest voltages are prior.
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