GE产品IC693APU300
IC693APU300
IC693APU300交流接触器的选用原则:
1.主回路触点的额定电流应大于或等于被控设备的额定电流,控制电动机的接触器还应考虑电动机的起动电流。为了防止频繁操作的接触器主触点烧蚀,频繁动作的接触器额定电流可降低使用。
2.接触器的电磁线圈额定电压有36V、110V、220V、380V等,电磁线圈允许在额定电压的80%~105%范围内使用。
接触器和继电器主要差别在于:
继电器:用于控制电路、电流小,没有灭弧装置,可在电量或非电量的作用下动作;
接触器用于主电路、电流大,有灭弧装置,一 般只能在电压作用下动作。
至此,关于变频器的主回路设计、辅助电源部分、控制电路以及器件的选取我们简单的介绍了一下,希望对大家能够有所帮助。也希望你们能够喜欢
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