高低压成套设备是指将高压和低压电气设备元件组合在一起，进行合理配置，并组合封闭在金属外壳内，形成一个统一的电气设备整体。其主要作用是实现电能的输配、变换、分配，保护电力设备和线路，提高电力系统的运行效率和可靠性。具体如下：

　　High and low voltage complete equipment refers to the combination of high and low voltage electrical equipment components, which are reasonably configured and enclosed in a metal casing to form a unified electrical equipment whole. Its main function is to achieve the transmission, transformation, and distribution of electrical energy, protect the safety of power equipment and lines, and improve the operational efficiency and reliability of the power system. as follows:

　　1.高压成套设备：通常指电压等级在1kV以上、330kV以下的交流电压或1.5kV以上、400kV以下的直流电压的电气设备组合，主要用于电力系统的控制和保护，如高压开关柜、变压器等。

　　1. High voltage complete equipment: usually refers to electrical equipment combinations with AC voltage levels above 1kV and below 330kV or DC voltage levels above 1.5kV and below 400kV, mainly used for control and protection of power systems, such as high-voltage switchgear, transformers, etc.

　　2.低压成套设备：一般指电压等级在380V及以下的电气设备组合，常见的有低压开关柜、配电盘、控制箱等，主要用于电能的分配和控制。高低压成套设备广泛应用于供电系统中的变配电站、工矿企业、高层建筑等场所，是电力系统中不可或缺的重要组成部分。

　　2. Low voltage complete equipment: generally refers to electrical equipment combinations with voltage levels of 380V and below, commonly including low-voltage switchgear, distribution panels, control boxes, etc., mainly used for energy distribution and control. High and low voltage complete sets of equipment are widely used in power distribution stations, industrial and mining enterprises, high-rise buildings and other places in the power supply system, and are an indispensable and important component of the power system.

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