CATAGÓIRÍ
TÁIRGÍ RÁTHAÍOCHTA
ZW32-11kV Outdoor Vacuum Circuit Breaker | Professional Manufacturer of Medium Voltage Switchgear
Short Description:
Our 11kV Outdoor Medium Voltage Vacuum Circuit Breaker is a high-performance switching and protection device specially designed for 11kV outdoor power systems. It adopts vacuum as the arc-extinguishing medium, featuring excellent arc-extinguishing performance, fast breaking speed, and no environmental pollution. The product is equipped with a reliable spring or hydraulic operating mechanism, with high mechanical strength and long service life. The shell is made of high-quality stainless steel or anti-corrosion steel plate, with strong pollution resistance, corrosion resistance and weather resistance, adapting to various harsh outdoor environments. It is mainly used for switching, control and fault protection of 11kV power transmission lines, substations, power plants and industrial power systems. Complying with IEC and GB standards, the product has compact structure, stable operation, high safety and low maintenance cost, which can effectively ensure the safe and stable operation of the 11kV power grid.
1. Product Overview 产品概述
The 11kV Outdoor Medium Voltage Vacuum Circuit Breaker is a key equipment in 11kV medium voltage power systems, mainly responsible for the tasks of connecting and breaking normal load current, and quickly cutting off short-circuit current and overload current in case of system faults. It adopts vacuum arc-extinguishing technology, which has the advantages of fast arc-extinguishing speed, high insulation recovery speed and no arc reburning. The product is designed with a fully sealed structure, which effectively prevents the entry of moisture, dust and corrosive substances, ensuring stable operation in outdoor environments such as high temperature, low temperature, humidity, salt spray and heavy pollution. It is widely used in 11kV outdoor substations, high-voltage transmission lines, rural power grids, industrial and mining enterprises and other power supply occasions, providing reliable technical support for the safe and efficient operation of the power grid.
11kV户外中压真空断路器是11kV中压电力系统中的关键设备，主要承担接通和分断正常负荷电流，以及系统故障时快速切断短路电流、过载电流的任务。采用真空灭弧技术，具有灭弧速度快、绝缘恢复速度高、无电弧重燃等优势。产品采用全密封结构设计，有效阻挡水分、灰尘及腐蚀性物质侵入，确保在高温、低温、潮湿、盐雾、重污染等户外环境中稳定运行。广泛应用于11kV户外变电站、高压输电线路、农村电网、工矿企业等供电场合，为电网安全高效运行提供可靠技术支撑。
2. Core Features 核心特点
1. Excellent Vacuum Arc-Extinguishing Performance（真空灭弧性能优异）
Adopts high-quality vacuum interrupter with high vacuum degree (≤10⁻⁴ Pa), which can quickly extinguish the arc within a few milliseconds. It has strong breaking capacity for short-circuit current and load current, and no harmful gas is generated during operation, which is environmentally friendly and pollution-free.
采用优质真空灭弧室，真空度高达≤10⁻⁴ Pa，可在数毫秒内快速熄灭电弧。对短路电流和负荷电流的开断能力强，运行过程中不产生有害气体，环保无污染。
2. Strong Environmental Adaptability（环境适应性强）
The shell is treated with anti-corrosion and anti-pollution coating, and the protection grade reaches IP65. It can work normally in the ambient temperature range of -40℃ ~ +70℃, and is resistant to humidity, salt spray, dust and ultraviolet radiation, suitable for various harsh outdoor working conditions.
外壳经防腐、防污涂层处理，防护等级达IP65。可在-40℃~+70℃环境温度范围内正常工作，耐潮湿、抗盐雾、防灰尘、抗紫外线，适配各类恶劣户外工况。
3. High Reliability & Long Service Life（可靠性高，使用寿命长）
The operating mechanism adopts spring or hydraulic structure, with stable mechanical performance and high action accuracy. The mechanical life is ≥10000 times, and the electrical life is ≥3000 times, which can meet the long-term operation needs of the power grid. Key components are made of high-strength materials, with strong wear resistance and fatigue resistance.
操作机构采用弹簧或液压结构，机械性能稳定、动作精度高。机械寿命≥10000次，电气寿命≥3000次，可满足电网长期运行需求。关键部件选用高强度材料制成，耐磨性、抗疲劳性强。
4. Compact Structure & Easy Installation（结构紧凑，安装便捷）
Adopts integrated design, small volume and light weight, which is convenient for hoisting and installation. The base is equipped with standard mounting holes, which can be quickly fixed on the concrete foundation or steel frame. The wiring terminal is clearly marked, facilitating on-site wiring and commissioning.
采用一体化设计，体积小、重量轻，便于吊装和安装。底座设有标准安装孔，可快速固定于混凝土基础或钢架上。接线端子标识清晰，便于现场接线和调试。
5. Perfect Protection & Interlocking Functions（保护与联锁功能完善）
Equipped with overcurrent protection, short-circuit protection and undervoltage protection functions (optional). It is equipped with reliable mechanical interlocking and electrical interlocking devices, which can prevent misoperation such as closing with load, opening with ground switch closed, and ensure the safety of operators and equipment.
具备过电流保护、短路保护、欠电压保护功能（可选配）。配备可靠的机械联锁和电气联锁装置，可防止带负荷合闸、带接地开关合闸等误操作，保障操作人员及设备安全。
6. Good Insulation Performance（绝缘性能优良）
The insulation parts are made of high-quality epoxy resin or silicone rubber materials, with high insulation strength and good hydrophobicity. The power frequency withstand voltage and lightning impulse withstand voltage meet the requirements of high-voltage equipment, effectively avoiding insulation breakdown accidents.
绝缘部件采用优质环氧树脂或硅橡胶材料制成，绝缘强度高、憎水性好。工频耐受电压和雷电冲击耐受电压均满足高压设备要求，有效避免绝缘击穿事故。
3. Technical Parameters 技术参数
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Item 项目
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Specification 技术指标
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|---|---|
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Product Model 产品型号
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ZW32-11 (or customizable)
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Rated Voltage 额定电压
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11kV
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Rated Frequency 额定频率
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50Hz
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Rated Current 额定电流
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630A / 1250A (optional)
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Rated Short-Circuit Breaking Current 额定短路开断电流
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20kA / 25kA / 31.5kA (optional)
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Rated Short-Time Withstand Current 额定短时耐受电流
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20kA / 25kA / 31.5kA (4s)
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Rated Peak Withstand Current 额定峰值耐受电流
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50kA / 63kA / 80kA
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Arc-Extinguishing Medium 灭弧介质
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Vacuum
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Operating Mechanism 操作机构
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Spring operating mechanism / Hydraulic operating mechanism
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Mechanical Life 机械寿命
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≥10000 times
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Electrical Life 电气寿命
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≥3000 times
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Protection Grade 防护等级
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IP65
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Ambient Temperature 环境温度
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-40℃ ~ +70℃
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Altitude 适用海拔
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≤2000m (can customize for higher altitude)
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Insulation Level 绝缘水平
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Power frequency withstand voltage: 42kV (1min); Lightning impulse withstand voltage: 75kV
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Shell Material 外壳材质
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Stainless steel / Anti-corrosion steel plate
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Execution Standard 执行标准
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IEC 62271-100, GB 1984
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4. Application Scenarios 应用场景
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11kV outdoor substations for line switching and fault protection（11kV户外变电站，用于线路投切与故障保护）
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11kV high-voltage transmission lines in urban and rural areas（城乡11kV高压输电线路）
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Power supply systems of industrial and mining enterprises with 11kV power supply（采用11kV供电的工矿企业供电系统）
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Rural power grid transformation and upgrading projects（农村电网改造升级工程）
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Power distribution systems of commercial centers, residential areas and large public buildings（商业中心、居民区及大型公共建筑的配电系统）
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Renewable energy power generation projects (solar power plants, wind power plants) supporting power grids（新能源发电项目（光伏电站、风电场）配套电网）
5. After-Sales Service 售后服务
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Factory Direct Supply & Quality Assurance：All products are produced in strict accordance with IEC and GB standards, and provide complete quality certification documents (type test report, factory test report, product certificate). We offer a one-year free warranty and lifelong maintenance service.（工厂直供&品质保障：所有产品严格按IEC及国家标准生产，提供型式试验报告、出厂试验报告、产品合格证等齐全资质文件。提供一年免费质保、终身维修服务。）
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Customization Service：According to the customer’s actual power grid configuration, rated current, short-circuit breaking current, operating mechanism type, altitude and anti-pollution level requirements, we provide personalized product customization services.（定制化解决方案：根据客户实际电网配置、额定电流、短路开断电流、操作机构类型、海拔及防污等级要求，提供个性化产品定制服务。）
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Installation & Commissioning Guidance：A professional technical team provides on-site installation guidance, wiring debugging, operation training and technical consultation services to ensure the product is installed and put into operation smoothly.（安装调试指导：专业技术团队提供现场安装指导、接线调试、操作培训及技术咨询服务，确保产品顺利安装投运。）
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Spare Parts Supply & Maintenance Support：We have a complete spare parts supply system, providing long-term supply of vacuum interrupters, operating mechanisms, seals and other spare parts. For product faults, we respond within 24 hours and send technicians to the site for disposal in a timely manner.（备品备件供应&维护支持：拥有完善的备品备件供应体系，长期供应真空灭弧室、操作机构、密封件等备品备件。针对产品故障，24小时内响应，及时派遣技术人员上门处置。）
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