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VGK420-12 模块化智能预制舱式变电站
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环保气体绝缘环网柜 专注细节 品质取胜
Environmental protection gas insulated ring network cabinet Focus on the details of quality to win

概述 Overview

VGK420-12 环保气体绝缘环网柜系 12kV，三相交流 50Hz，单母线及单母线分段系统的成套配电装置。该产品具有结构简单、操作灵活、联锁可靠、安装方
便等特点，对各种不同应用场合，不同用户均能提供令人满意的技术方案。传感技术、信息化技术的采用，加上先进的技术性能及简便灵活的配置方案，可
以满足市场不断变化的需求，并适用于电网智能化要求。
最新小型柜
该 VGK420-12 环保气体绝缘环网柜适用于工业及民用电缆环网及配网终端工程。作为电能的接受和分配之用，特别适用于城市居民区配电、小型二次变电所、
开闭所、电缆分支箱、箱式变电站、工矿企业、商场、机场、地铁、风力发电、医院、体育场、铁路、隧道等场所使用。
VGK420-12 环保气体绝缘环网柜满足相关国家标准，电力行业标准，国际标准等标准要求。其开关及主要电器元件为集成模块，相间导电部位间为固体绝
缘封装，向外接线采用屏蔽式电缆接头，功能单元连接母线采用屏蔽式绝缘母线。因此，使用安全性大大提高，操作机构采用弹簧机构，机械寿命为 10000
次以上。其所有运行数据及设备状况都可实现远程监控监测，可以无人值守。实为—种性能优越的配电装置。
柜内可选用以下单元组成经济实用的供电单元：
品牌授权柜 GE
真空断路器单元 ( 630A，20-25kA)；
真空负荷开关单元 ( 630A，20-25kA)。
VGK420-12 environmental protection gas insulated ring network cabinet 12kV, three-phase AC 50Hz, single bus and single busbar system of complete sets
of power distribution devices. The product has a simple structure, flexible operation, interlocking reliable, easy installation and so on, for a variety of different
applications, different users can provide a satisfactory technical solutions. Sensing technology, the adoption of information technology, coupled with advanced
technical performance and simple and flexible configuration options to meet the changing needs of the market and apply to the power grid intelligent requirements.
箱式变电站
The VGK420-12 environmental protection gas insulated ring network cabinet for industrial and civilian cable ring network and distribution network terminal project.
As the acceptance and distribution of electricity, especially for urban residential distribution, small secondary substation, opening and closing, cable branch box,
box-type substation, industrial and mining enterprises, shopping malls, airports, subway, wind power, hospitals , Stadiums, railways, tunnels and other places to
use.
VGK420-12 environmental protection gas insulated ring network cabinet to meet the relevant national standards, power industry standards, international standards
and other standards. The main components of the switch and the main components for the integrated module, inter-phase conductive parts between the solid
insulation package, the use of shielded cable connector connection, functional unit connected to the use of shielded insulated busbar. Therefore, the use of security 高压开关柜
greatly improved, the operating mechanism using spring mechanism, mechanical life of 10,000 times or more. All of its operating data and equipment conditions
can be achieved remote monitoring and monitoring, can be unattended. It is a kind of power distribution equipment with superior performance.
Cabinet can use the following units to form an economical and practical power supply unit:
Vacuum circuit breaker unit (630A, 20-25kA);
Vacuum load switch unit (630A, 20-25kA).
低压开关柜

使用条件 Service condition
■ 灭弧室类型：真空； ■ Interrupter type: vacuum;
■ 额定电压：12kV； ■ Rated voltage: 12kV;
■ 额定频率：50Hz； ■ Rated frequency: 50Hz; 电缆分支箱、元件及配电系统
■ 额定电流：630A； ■ Rated current: 630A;
■ 温升试验：1.1lr； ■ Temperature rise test: 1.1lr;
■ 额定工频 1min 耐受电压： ■ Rated power frequency 1min withstand voltage:
phase, relative to the fracture 42kA, 48kA;
相间、相对地断口 42kA、48kA；
■ Rated lightning impulse withstand voltage peak (1.2 / 50us):
■ 额定雷电冲击耐受电压峰值（1.2/50us）：
phase, relative to the fracture 75kV, 85kV;
相间、相对地断口 75kV、85kV；
■ Auxiliary and control loop short-time power frequency withstand voltage: 2kV;
■ 辅助及控制回路短时工频耐受电压：2kV；
■ Rated short circuit breaking current: 25kA;
■ 额定短路开断电流次数：25kA；
■ Rated short circuit breaking current / duration:
■ 额定短路开断电流 / 持续时间：
main circuit, grounding switch grounding circuit 25/4kA/s, 21.7/2kA/s;
主回路、接地开关接地回路 25/4kA/s 、21.7/2kA/s； 电力总包工程
■ Rated peak withstand current: 63kA;
■ 额定峰值耐受电流：63kA；
■ Rated short circuit closing current: 63kA;
■ 额定短路关合电流：63kA；
■ Rated active load current: 630A;
■ 额定有功负载电流：630A；
■ Partial discharge (1, .2Ur measured value): ≤ 20pC;
■ 局部放电量（1,.2Ur 下测量值）：≤ 20pC；
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