常见的低压配电柜、高压配电柜其实并不是单单指配电柜本身，它实际上是我们俗称的成套设备，其实这种叫法是不准确的，学名应该是“成套配电装置”。那么什么是成套配电装置，它有哪些特点呢?什么是“成套配电装置”?成套配电装置是以断路器为主的电气设备;成套配电装置是制造厂成套供应的设备，由制造厂预先按照主接线的要求，将每一回路的电气设备高低压电器(包括控制电器、保护电器、测量电器、如断路器、隔离开关、互感器等)以及母线、载流导体、绝缘子等，装配在封闭或半封闭的金属柜中，构成各单元电路分柜，此单元电路分柜成为成套配电装置。安装时，按主接线方式，将各单元分柜(又称间隔)组合起来，就构成整个配电装置。在电器成套设备中把母线、隔离开关(高压)、刀开关(低压)、断路器(空气开关)、电压互感器、电流互感器、电力变压器、交流接触器、保护继电器(热继电器)、避雷器等组成的设备叫一次设备。由它们按照原理关系所组成的回路称为一次回路或一次方案图。

　　The common low-voltage distribution cabinet and high-voltage distribution cabinet actually refer not only to the distribution cabinet itself, but also to what we commonly call a complete set of equipment. In fact, this term is inaccurate, and the scientific name should be "complete set of distribution equipment". So what is a complete set of power distribution equipment and what are its characteristics? What is a 'complete power distribution device'? A complete power distribution system is an electrical equipment mainly composed of circuit breakers; A complete set of power distribution equipment is a set of equipment supplied by a manufacturing plant. The manufacturer pre assembles the high and low voltage electrical equipment (including control appliances, protection appliances, measuring appliances, such as circuit breakers, isolating switches, transformers, etc.), busbars, current carrying conductors, insulators, etc. of each circuit in a closed or semi closed metal cabinet according to the requirements of the main wiring, forming each unit circuit cabinet. This unit circuit cabinet becomes a complete set of power distribution equipment. When installing, according to the main wiring method, the various unit cabinets (also known as intervals) are combined to form the entire power distribution device. The equipment composed of busbars, isolating switches (high voltage), knife switches (low voltage), circuit breakers (air switches), voltage transformers, current transformers, power transformers, AC contactors, protective relays (thermal relays), lightning arresters, etc. in electrical equipment sets is called primary equipment. The circuit composed of them according to their principle relationship is called a primary circuit or a primary scheme diagram.

　　为了使一次系统能可靠、稳定地运行，随时监视一次系统运行状态，同时能随时控制一次系统所必须配备许多其他电器元件及设备。如：测量仪表(电流表、电压表、功率因素表、功率表、频率表等)、控制信号元件(信号灯、按钮、转换开关等)、继电保护装置等。由它们按照原理关系所组成的回路称为二次回路或二次方案图。

　　In order to ensure the safe, reliable, and stable operation of a primary system, it is necessary to monitor the system's operating status at any time and control it at any time by equipping it with many other electrical components and equipment. Such as measuring instruments (ammeter, voltmeter, power factor meter, power meter, frequency meter, etc.), control signal components (signal lights, buttons, universal transfer switches, etc.), relay protection devices, etc. The circuit composed of them according to their principle relationship is called a secondary circuit or a secondary scheme diagram.

　　成套设备主要分为：0.4kV、0.69kV、1.2kV低压开关柜;3.6kV、7.2kV、12kV、24kV中压开关柜(目前发展趋势)、40.5kV高压开关柜，动力箱(柜)、照明箱、控制箱(柜、台)、保护屏、直流屏等。

　　The complete set of equipment is mainly divided into: 0.4kV, 0.69kV, 1.2kV low-voltage switchgear; 3.6kV, 7.2kV, 12kV, 24kV medium voltage switchgear (current development trend), 40.5kV high voltage switchgear, power box (cabinet), lighting box, control box (cabinet, platform), protection screen, DC screen, etc.

　　高压开关设备：主要用于发电、输电、配电和电能转换的高压开关以及和控制、测量、保护装置、电气联结(母线)、外壳、支持件等组成的总称。

　　High voltage switchgear: a general term for high-voltage switches mainly used for power generation, transmission, distribution, and energy conversion, as well as control, measurement, protection devices, electrical connections (busbars), enclosures, supports, and other components.

　　开关柜防护要求中的“五防”：

　　The "five protections" in the protection requirements for switchgear:

　　防止误分误合断路器/防止带电分合隔离开关/防止带电合接地开关/防止带接地分合断路器/防止误入带电间隔。

　　Prevent accidental opening and closing of circuit breakers/prevent energized opening and closing of isolation switches/prevent energized closing of grounding switches/prevent grounded opening and closing of circuit breakers/prevent accidental entry into energized compartments.

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