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LW8-40.5 Heicseafluairíd Sulfair (SF6) Briste Cuarda, 35kV Lasmuigh den Ardvoltas Lasmuigh, Gás Inslithe

Cur síos gairid:
An Heicseafluairíd Sulfair LW8-40.5 (SF6) Circuit Breaker is a core arc-extinguishing device specially designed for 35kV (40.5kV) 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, fiontair thionsclaíocha agus mhianadóireachta, 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.

aon、产品描述(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,灭弧速度快、耐电强度高,其绝缘能力是空气的 2-3 倍,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,Caillteanas gan ualach íseal,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、spraeála salann、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℃ go + 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:

Feistithe le meicníocht oibriúcháin earrach ardfheidhmíochta,动作可靠、分合闸速度快,Saol meicniúil fada,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。

Cásanna iarratais:

广泛适用于 35kV 城乡配网主干线、Atógáil líne brainse,工矿企业专用供电回路,fótavoltach、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。

An Heicseafluairíd Sulfair LW8-40.5 (SF6) Circuit Breaker is positioned as the “Reliable Guardian” for 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 & Cosaint:

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 “saor ó chothabháil”, significantly reducing long-term operation and maintenance costs and inspection workload.

Cásanna Iarratais:

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.

dhá、产品参数表(Product Parameters Table)

Míreanna paraiméadar Paraiméadair shonracha
Múnla táirge LW8-40.5
产品类型 户外高压六氟化硫断路器
Voltas rátáilte 40.5kV (35kV 系统适用)
Minicíocht rátáilte 50Hz (60Hz 可选)
Reatha rátáilte 630A / 1250A (Sonraíochtaí príomhshrutha,可定制)
Sruth briste gearrchiorcaid rátáilte 25kA / 31.5kA / 40kA (Roghnach)
额定短路关合电流 63kA / 80kA / 100kA (对应开断电流)
mheán inslithe Heicseafluairíd sulfair (SF6) 气体
meán múchta stua Heicseafluairíd sulfair (SF6) 气体
操作机构 Meicníocht oibriúcháin earraigh (可电动 / Lámhleabhar)
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)
Saol meicniúil ≥3000 次
Leibhéal cosanta IP65 (户外防腐蚀型)
环境温度范围 -40℃ ~ +40℃
Airde is infheidhme ≤1000m (高海拔可定制)
Caighdeáin forfheidhmithe GB/T 1984、GB/T 4089.1、IEC 62271-100
外形尺寸 约 1200×600×1500mm (具体以实物为准)
meáchan iomlán 约 850kg ~ 1100kg (随规格变化)
Míreanna Paraiméadar Paraiméadair Sonracha
Múnla Táirge LW8-40.5
Product Type Outdoor High-Voltage Sulfur Hexafluoride (SF6) Briste Cuarda
Voltas Rátáilte 40.5kV (For 35kV System)
Minicíocht Rátáilte 50Hz (60Hz Optional)
Reatha Rátáilte 630A / 1250A (Mainstream Specifications, Incheaptha)
Reatha Briseadh Gearrchiorcaid Rátáilte 25kA / 31.5kA / 40kA (Roghnach)
Rated Short-Circuit Making Current 63kA / 80kA / 100kA (Corresponding to Breaking Current)
Insulating Medium Sulfur Hexafluoride (SF6) Gas
Arc-Múchadh Meán Sulfur Hexafluoride (SF6) Gas
Meicníocht Oibriúcháin Spring Operating Mechanism (Electric/Manual Available)
Rated Operating Voltage DC 220V (Standard, DC 110V/AC 110V Customizable)
SF6 Gas Filling Pressure 0.45MPa ~ 0.6MPa (20℃, Incheaptha)
Saol Meicniúla ≥3000 Operations
Leibhéal Cosanta IP65 (Outdoor Anti-Corrosion Type)
Ambient Temperature Range -40℃ ~ +40℃
Airde is Infheidhme ≤1000m (High Altitude Customizable)
Caighdeáin Forghníomhaithe GB/T 1984, GB/T 4089.1, IEC 62271-100
Overall Dimensions Approx. 1200×600×1500mm (Subject to Actual Product)
Meáchan Iomlán Approx. 850kg ~ 1100kg (Varies with Specifications)
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