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ZW8-12 Outdoor High Voltage Vacuum Circuit Breaker with Metering Transformers
Short Description:
ZW8-12 Outdoor High Voltage Vacuum Circuit Breaker with Metering Transformers is a core intelligent device for 10kV outdoor distribution networks. It integrates dual functions of high-voltage switching and energy metering, using vacuum as the arc-extinguishing medium and built-in dedicated current and voltage metering transformers (CT/PT), eliminating the need for additional metering devices. Featuring compact structure, reliable protection, convenient operation and eco-efficiency, the product can realize integrated line protection, fault breaking and accurate energy metering. It is widely used in urban and rural distribution networks, industrial and mining enterprises, new energy power stations and other scenarios, providing reliable support for distribution network automation and power metering management.
一、产品描述（Product Description）
ZW8-12户外高压真空断路器（带计量互感器），专为10kV户外配电场景量身打造，核心优势在于“开关+计量”一体化设计，兼顾线路保护与电能计量双重需求，简化配电系统布局，降低安装与运维成本。产品采用真空灭弧技术，彻底杜绝SF6气体泄漏带来的环境污染，符合全球低碳发展趋势，灭弧速度快、电寿命长，开断性能稳定可靠。
设备内置高精度计量互感器（CT/PT），计量精度高、误差小，可精准采集线路电流、电压及电能数据，支持远程抄表与负荷监测，为电力运营管理、电费核算提供精准数据支撑，无需额外安装独立计量设备，大幅节省配电系统投入。产品采用户外专用密封结构，防护等级达IP67，可有效抵御暴雨、沙尘、低温、高温等恶劣天气，适配-40℃~+60℃宽温环境，适用海拔≤4000m，满足不同户外场景使用需求。
产品结构紧凑、重量轻便，采用户外柱上安装方式，便于现场施工与后期维护；配备高性能弹簧操动机构，操作功小、动作灵敏，机械寿命可达10000次以上，无需频繁维护，进一步降低运维成本。该断路器广泛应用于10kV城乡配网主干线、分支线路、工矿企业专用配电回路、光伏/风电新能源电站并网接入点，是实现配网智能化、计量精准化的理想设备。
ZW8-12 Outdoor High Voltage Vacuum Circuit Breaker with Metering Transformers is tailor-made for 10kV outdoor power distribution scenarios. Its core advantage lies in the integrated design of “switch + metering”, which meets the dual needs of line protection and energy metering, simplifies the layout of the power distribution system, and reduces installation and operation and maintenance costs. Adopting vacuum arc-extinguishing technology, the product completely eliminates environmental pollution caused by SF6 gas leakage, complying with global low-carbon development trends, with fast arc-extinguishing speed, long electrical life and stable and reliable breaking performance.
The equipment is equipped with high-precision metering transformers (CT/PT), featuring high metering accuracy and small error. It can accurately collect line current, voltage and energy data, support remote meter reading and load monitoring, and provide precise data support for power operation management and electricity fee calculation. No additional independent metering equipment is required, which greatly saves the investment of the power distribution system. The product adopts a special outdoor sealed structure with a protection level of IP67, which can effectively resist harsh weather such as heavy rain, sand and dust, low temperature and high temperature, adapting to a wide temperature range of -40℃~+60℃ and an applicable altitude of ≤4000m, meeting the needs of different outdoor scenarios.
With a compact structure and light weight, the product adopts outdoor pole-mounted installation, which is convenient for on-site construction and later maintenance. Equipped with a high-performance spring operating mechanism, it has small operating energy and sensitive action, with a mechanical life of more than 10,000 operations, no frequent maintenance required, and further reduces operation and maintenance costs. The circuit breaker is widely used in 10kV urban and rural distribution network trunk lines, branch lines, special power distribution circuits of industrial and mining enterprises, and grid connection points of photovoltaic/wind power new energy stations, making it an ideal equipment for realizing distribution network intelligence and metering precision.
二、产品参数表（Product Parameters Table）
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参数项目
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具体参数
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产品型号
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ZW8-12（带计量互感器）
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额定电压
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12kV（最高工作电压12kV）
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额定电流
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630A（主流规格，可定制）
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额定频率
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50Hz/60Hz（可选）
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灭弧介质
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真空
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绝缘介质
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空气/SF6气体（可选）
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额定短路开断电流
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20kA/25kA（可选）
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额定短时耐受电流（4s）
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20kA/25kA
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额定峰值耐受电流
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50kA/63kA
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内置计量互感器
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CT：5-630A/5A（可选变比）；PT：10/√3 kV / 0.1/√3 kV
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操动机构
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弹簧操动机构（手动/电动可选）
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机械寿命
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≥10000次
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防护等级
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IP67
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环境温度适应范围
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-40℃~+60℃
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适用海拔
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≤4000m
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执行标准
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GB 1984、GB/T 11022、IEC 62271-100
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安装方式
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户外柱上安装（单杆/双杆可选）
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整体重量
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≤220kg
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Parameter Items
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Specific Parameters
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Product Model
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ZW8-12 (With Metering Transformers)
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Rated Voltage
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12kV (Maximum Working Voltage 12kV)
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Rated Current
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630A (Mainstream Specification, Customizable)
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Rated Frequency
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50Hz/60Hz (Optional)
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Arc-Extinguishing Medium
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Vacuum
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Insulation Medium
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Air/SF6 Gas (Optional)
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Rated Short-Circuit Breaking Current
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20kA/25kA (Optional)
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Rated Short-Time Withstand Current (4s)
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20kA/25kA
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Rated Peak Withstand Current
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50kA/63kA
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Built-in Metering Transformers
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CT: 5-630A/5A (Optional Ratio); PT: 10/√3 kV / 0.1/√3 kV
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Operating Mechanism
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Spring Operating Mechanism (Manual/Electric Optional)
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Mechanical Life
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≥10,000 Operations
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Protection Level
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IP67
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Ambient Temperature Adaptation Range
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-40℃~+60℃
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Applicable Altitude
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≤4000m
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Execution Standards
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GB 1984, GB/T 11022, IEC 62271-100
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Installation Method
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Outdoor Pole-Mounted (Single/Double Pole Optional)
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Overall Weight
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≤220kg
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