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开关电源接地有什么作用？安装时要注意什么？

开关电源接地有什么作用？安装时要注意什么？

浏览：49次 | 提问时间： 07-23 03:02

全楼32层，我家是14层，冬季装修，装完地热后没有用打压泵试压，直接接的暖气热水试压，请问这个会有什么影响吗

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4个答案

冷眼看狗叫 07-23 03:12

L和N分别接100--120V或者200--240V交流电的火线和零线，带有接地标志的那个端子接地线+V是输出24V的正极-V是输出24V的负极。PLC是直接接AC220V的。与开关电源220V并联在一起。补充：首先自带的24V可以用，但它的负载能力比较低，如不用的话可以可以直接调用开关电源的24V，但要使PLC和电源的地线相连接。至于Y点是输出而不是输入。一个COM1、点管4个Y点。希望我的回答能够帮助到你

少∫扯ヘ淡 07-23 03:20

明伟开关电源24v连接方法：L和N分别接100--120V或者200--240V交流电的火线和零线，带有接地标志的那个端子接地线+V是输出24V的正极-V是输出24V的负极

onlya句号 07-23 03:28

电源开关安装要注意：把一开关电源电路的变压器放置和安装在一电路板的近似中间区域。变压器为低型面型，其上表面起到吸嘴的吸取表面的作用。在把表面安装型开关电源装置安装在一母板上时，首先，由吸嘴固定变压器的上表面，并把表面安装型开关电源装置转移到母板上的目标安装区域，把表面安装型开关电源装置表面安装在母板中。由于这不需要提供吸嘴专用的吸嘴吸取表面，所以不需要进行模压，相应地，可有助于低型面低成本的表面安装型开关电源装置。

幸而勿忘矣 07-23 03:37

现如今，开关电源已经代替了线性稳压电源，活跃在电子电力设计领域当中。人们也逐渐意识到，开关电源已经改变了电子设计行业的技术方向。在电源设计中，安全往往是第一位的，在开关电源中也是如此，接地能够保护使用者的人身安全，并且确保电力设备的正常运行。

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