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特色產品

LW8-40.5六氟化硫 (SF6) 斷路器, 35kV戶外高壓開關設備, 氣體絕緣

簡短的介紹:
LW8-40.5六氟化硫 (SF6) Circuit Breaker is a core arc-extinguishing device specially designed for 35kV (40.5電壓) outdoor high-voltage distribution networks. Using sulfur hexafluoride (SF6) gas as the insulation and arc-extinguishing medium, it boasts outstanding advantages such as strong breaking capacity, stable electrical performance, excellent weather resistance and maintenance-free. Featuring an outdoor compact structure, it adapts to a wide temperature range from -40℃ to +40℃. Widely used in urban and rural power grids, 工礦企業, new energy power stations and railway power supply, it effectively ensures the safe isolation and fault clearance of medium and high-voltage lines, making it an ideal choice for 35kV outdoor distribution network automation transformation.

一、產品描述(Product Description)

LW8-40.5 六氟化硫断路器定位于 35kV 户外中高压配电系统的 “可靠守护者”核心解决方案在于利用 SF6 气体优异的绝缘与灭弧性能完美解决传统空气开关在高电压大电流场景下断口距离长体积庞大可靠性不足的问题

核心性能与材料

产品核心部件采用优质断口设计灭弧室充入纯净的六氟化硫(SF6)气体该气体具有极强的电负性,滅弧速度快、耐电强度高其绝缘能力是空气的 2-3 开断性能远超传统设备配合高导磁冷扎硅钢片铁芯与优质导电回路确保设备在 35kV 高电压等级下仍能保持极低的操作功与稳定的开断特性空载损耗低运行效率极高

户外适应性与防护

设备采用全密封防腐蚀结构设计外壳选用优质冷轧钢板经过严格的磷化喷塑防腐处理防护等级可达 IP65 及以上可长期耐受户外暴雨风沙、鹽霧、紫外线照射等恶劣环境有效防止气体泄漏与内部凝露其温度适应范围宽达 – 40℃至 + 40℃,满足全国绝大多数地区的户外运行标准尤其适配高寒高湿度及沿海多风地区

操作与维护

配備高性能彈簧操動機構,动作可靠分合闸速度快机械寿命长满足频繁操作需求SF6 气体作为绝缘介质其化学性质稳定无老化失效之忧配合全密封结构实现了真正意义上的 “免维护”大幅降低了长期运维成本与巡检工作量

應用場景

广泛适用于 35kV 城乡配网主干线分支线路改造工矿企业专用供电回路光伏风电新能源电站的并网关口以及铁路机场等重点基础设施的中高压配电保护是构建智能化可靠化户外配网的关键设备

LW8-40.5六氟化硫 (SF6) Circuit Breaker is positioned as theReliable Guardianfor 35kV outdoor medium and high-voltage power distribution systems. Its core solution lies in utilizing the excellent insulation and arc-extinguishing properties of SF6 gas, perfectly solving the industry pain points of traditional air switches such as long gap distance, large volume and insufficient reliability in high-voltage and high-current scenarios.

Core Performance & Materials:

The core components adopt a high-quality break design, and the arc chute is filled with pure sulfur hexafluoride (SF6) gas. This gas has strong electronegativity, fast arc extinguishing speed and high dielectric strength. Its insulation capability is 2-3 times higher than air, offering far superior breaking performance than traditional devices. Combined with a high-permeability cold-rolled silicon steel sheet core and high-quality conductive circuit, the device ensures low operating force and stable breaking characteristics even under the 35kV high-voltage level, with low no-load loss and extremely high operating efficiency.

Outdoor Adaptability & Protection:

Featuring a fully sealed and corrosion-resistant structural design, the outer shell is made of high-quality cold-rolled steel sheet, treated with strict phosphating and electrostatic spraying for anti-corrosion. It achieves a protection level of up to IP65 and above. It can withstand long-term harsh outdoor environments such as heavy rain, sandstorms, salt fog and UV radiation, effectively preventing gas leakage and internal condensation. With a wide temperature adaptation range of -40℃ to +40℃, it meets the outdoor operation standards of most regions in China, especially suitable for cold, high-humidity and coastal areas with strong winds.

Operation & Maintenance:

Equipped with a high-performance spring operating mechanism, it features reliable action, fast switching speed and long mechanical life, meeting the demands of frequent operations. As an insulating medium, SF6 gas has chemically stable properties without aging failure. Coupled with the fully sealed structure, it realizes truly “免維護”, significantly reducing long-term operation and maintenance costs and inspection workload.

應用場景:

Widely used in 35kV urban and rural distribution network trunk line and branch line transformation, dedicated power supply circuits of industrial and mining enterprises, grid connection points of photovoltaic/wind power new energy stations, and medium and high-voltage power distribution protection of key infrastructure such as railways and airports. It is a key device to build an intelligent and reliable outdoor power distribution network.

二、產品參數表(Product Parameters Table)

參數項目 具體參數
產品型號 LW8-40.5
产品类型 户外高压六氟化硫断路器
額定電壓 40.5電壓 (35kV 系统适用)
額定頻率 50赫茲 (60Hz 可选)
額定電流 630一個 / 1250一個 (主流规格可定制)
額定短路開斷電流 25kA / 31.5kA / 40kA (可选)
额定短路关合电流 63kA / 80kA / 100kA (对应开断电流)
絕緣介質 六氟化硫 (SF6) 气体
滅弧介質 六氟化硫 (SF6) 气体
操作機構 弹簧操动机构 (可电动 / 手动)
额定操作电压 DC 220V (标准可定制 DC 110V/AC 110V)
SF6 气体充装压力 0.45MPa ~ 0.6MPa (20℃,可定制)
機械壽命 ≥3000 次
防護等級 IP65 (户外防腐蚀型)
环境温度范围 -40℃~+40℃
適用海拔 ≤1000m (高海拔可定制)
執行標準 國標/T 1984、國標/T 4089.1、國際電工委員會 62271-100
外形尺寸 约 1200×600×1500mm (具体以实物为准)
整體重量 约 850kg ~ 1100kg (随规格变化)
參數項 具體參數
產品型號 LW8-40.5
Product Type Outdoor High-Voltage Sulfur Hexafluoride (SF6) 斷路器
額定電壓 40.5電壓 (For 35kV System)
額定頻率 50赫茲 (60Hz Optional)
額定電流 630一個 / 1250一個 (Mainstream Specifications, 可客製化)
額定短路開斷電流 25kA / 31.5kA / 40kA (選修的)
Rated Short-Circuit Making Current 63kA / 80kA / 100kA (Corresponding to Breaking Current)
Insulating Medium Sulfur Hexafluoride (SF6) Gas
滅弧介質 Sulfur Hexafluoride (SF6) Gas
運作機制 彈簧操作機構 (Electric/Manual Available)
Rated Operating Voltage DC 220V (Standard, DC 110V/AC 110V Customizable)
SF6 Gas Filling Pressure 0.45MPa ~ 0.6MPa (20℃, 可客製化)
機械壽命 ≥3000 Operations
防護等級 IP65 (Outdoor Anti-Corrosion Type)
Ambient Temperature Range -40℃~+40℃
適用海拔 ≤1000m (High Altitude Customizable)
執行標準 國標/T 1984, 國標/T 4089.1, 國際電工委員會 62271-100
Overall Dimensions Approx. 1200×600×1500mm (Subject to Actual Product)
整機重量 Approx. 850kg ~ 1100kg (Varies with Specifications)
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