82408217-001

82408217-001

82408217-001

82408217-001

电机启动：具有过零检测功能的SSR可实现开关，因为它们能够保持其状态，直到交流输出波形自行越过零。因此，固态继电器在电机中找到应用，电动机是感性负载。但是，当继电器关闭时，感性负载会导致较大的瞬态电压尖峰，因为感性负载周围的磁场会崩溃。此外，在电源电压达到峰值期间切换继电器会导致继电器端子之间产生电弧并磨损它们，从而导致继电器的机械故障。对于机电型继电器来说，这两者都是粗糙和破坏性的条件。SSR在电机控制方面具有优势，因为它们内置过压保护，减小外围设备的尺寸（节省空间），可以用于反转电机和软启动器（延长电机寿命）。采用SSR的电机控制应用包括输送系统、泵、压缩机、电梯、风扇、升降机和升降机。

照明：白炽灯、卤素灯和类似设备的浪涌电流很大，大约是流过它们的额定电流的10到15倍。为这些设备使用固态继电器将确保浪涌电流的峰值不超过SSR浪涌电流电阻的一半。固态继电器的照明应用包括机场跑道、市政当局、剧院、办公空间和道路。

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