HXGN □ -12（SF6）型单元 式交流金属封闭环网开关设备（以下简称环网柜）是我们 在引进国外先进技术并按照国内农电及城网改造之要求而自行设计、研制成 功的新一代高压电器产品。各项技 术性能指标全部达到IEC298和GB3906标准。
环网柜的主开关、操作机 构及元器件采用ABB 公司原 装件或采用进口部件国内组装生产的SFL-12/24型开关设备，也可根 据用户需要配装ABB公司原装HAD/US型SF。断路器或VD4-S型真空断路器，其操作方式分为手动、电动两种。
柜体经 数控机床加工后铆接而成，防护等级达到IP3X，并有可 靠的机械联锁和防误操作功能。本产品具有体积小、重量轻、外形美观、操作简便、长寿命、高参数、无污染、少维护 等极具显著的特点。
HXGN □ -12(SF6) Unit type AC metal-enclosed ring main unit(hereafter refer to as ring net cabinet) is a new generation of high-pressure electric appliance product designed and developed independently by our own company according to the requirement of the domestic agricultural electricity and the city net transformation after introduction of overseas advanced technology. Each technical performance index completely reaches the IEC298 and GB3906 standard.
The loop-net cabinet s main switch, the operating mechanism and the components is made of the ABB Corporation original piece or the SFL-12/24 switch equipment imported overseas and assembled at home. We can also install the ABB Corporation original piece of HAD/US type SF according to the request of users. The circuit breaker or the VD4-Svacuum circuit-breaker divide into two kinds: be operated manually and electrically according to the operating mode.
The cabinet body is riveted after processed by numerical control machine tool with reliable mechanical interlocking and the misoperating prevention function. The protection grade reaches IP3X.This product has the remarkable characteristics such as the small volume, light weight, artistic appearance, simple operation, long life, high parameter with no pollution and little maintenance.
使用环境条件 Use of Environmental Conditions
1. The altitude should not exceed 2000m.
2. Surrounding air temperature: -25℃ ~+40℃
3. Relative temperature: the daily average value is not higher than 95%, the the monthly average value is not higher than 90%
4. Surrounding air without caustic gas or ignitable gas, steam and other obvious pollution
5. Without fierce vibration
HXGN □ -12（SF6）型单元 式交流金属环网开关设备，适用于交流50Hz12K 中，作为电 能的接受和分配之用。
HXGN □ -12 (SF6) unit type exchange metal ring- net switching equipment, is suitable to exchange 50Hz、12K, searving as device of receiving and distribution of electrical energy.
产品型号及其含义 Model and meaning
主要技术参数 The main technical parameters
结构特点及工作原理 Structural Characteristics and Working Principle
产品外形结构见图1、图2，安装尺寸如图3所示。本环网 柜是以空气为绝缘介质的，主要配装ZFN□-10/630型真空负荷开关，主要方 案有进线柜和出线柜等。
柜内主回路有一台ZFN□ -10/630 型真空负荷开关，它配装有隔离刀、酌情还 配装接地刀所组成，三者共 装在一个机架上，并互有联锁。因此可实现接通母线、隔离、接地三个工位的操作，柜内还可灵活配装CT、PT等元件。
柜内主回路有一台ZFN□-10/630型真空 负荷开关和带撞击器的熔断器(有隔离开关的作用)及接地刀所组成，也可实现三工位操作，柜内还可灵活配装 CT/PT 和ZNO避雷器等元件，因此有 时可省去计量柜。进、出线柜 均配有与接地开关联锁的绝缘防护隔板，柜内各 开关与隔板及柜门间采用机械联锁，并达到“五防”要求，柜体外壳防护等级为IP2X。
The outline structure of the product is referred to as diagram 1 and diagram 2; the installation dimension is referred to as diagram3. This ring network type cabinet makes air as the insulating medium,mainly assembled with ZFN □ -10/630 type vacuum load switch. And there are two cabinet schemes - incoming cabinet and outgoing cabinet.
1. Incoming cabinet scheme
There is a ZFN □ -10/630 type vacuum load switch on the main circuit inside the cabinet with isolating knife, and grounding knife conditionally. The three of them are all installed in one machine stand and there are interlocks among them, so that it is realized to connect the operation of three working stations of bus, isolation and grounding. Inside the cabinet the components such as CT, PY are available.
2.Outgoing cabinet scheme
ZFN □ -10/630 type vacuum load switch, fuse with striker (used as isolating switch) and grounding knife on the main circuit inside the cabinet, and the three working stations operation can be realized. Inside the cabinet the components such as CT/PT and ZNO arrester are available, so the metering cabinet can be omitted. Inside the incoming cabinet and outgoing cabinet, there is insulating protecting baffle interlocked with grounding switch. And inside the cabinets ,the mechanical interlocks are adopted between each switch and baffle as well as the cabinet door with the requirement of “five-prevention” and IP2X of the protection degree of the cabinet enclosure.
安装基础图 Installation base map