LW-126/3150-40型自能式交流高压六氟化硫断路器为户外型产品，适用于海拔不超过2000米(可设计海拔3000米产品)，环境温度不低于-30℃，污秽等级不高于Ⅳ级地区的交流50HZ，最高电压为126kv的电网中，用以切断额定电流、故障电流或转换线路，实现对电力系统的控制和保护，也可作为联结断路器使用。该产品以SF6气体作为灭弧和绝缘介质，采用了国际最先进的自能式灭弧技术，配用新型的弹簧操动机构，具有电寿命长、操作功小、噪声低、可靠性高等特点，其结构简单、体积小，不检修周期长，在目前电力设备趋向无油化、大容量的进程中，可完全替代同类型的进口产品。
型号及含义：
结构特点
1、断路器采用三相瓷柱式单断口结构，三相配用一个弹簧操动机构，居中布置，三相联动，故外观新颖精致。断路器以SF6气体作为绝缘和灭弧介质，运行时断路器三极SF6气体联通，并采用指针式密度继电器对其压力和密度进行监控。由于采用自能式灭弧原理，且在断路器运动系统中进行了优化设计，故有效的提高了机械效率，最大限度地降低了操作功；
2、开断性能优良，电寿命长；
3、安装底架及支撑采用优质钢板整体折弯而成，表面处理全部采用热镀锌工艺，所有外露紧固件采用高强度材料并热镀锌处理，或采用不锈钢标准件，机构箱外壳采用不锈钢材料，故产品的抗腐蚀性能优良；
4、机械可靠性高，能频繁操作；
5、由于六氟化硫气体固有的高绝缘强度，且断路器采用最优的触头运动，所有断路器开断容性电流无重燃；
6、外绝缘水平高，外绝缘为大爬距离设计，爬电比距≥31mm/kV,耐污秽性能优良，在恶劣的环境下也可安全运行；
7、载流能力强：按额定电流3150的1.2倍即3780A进行温升试验，各点温升仍有较大的裕度；
8、产品整体外观结构紧凑，安装调试方便，维护工作量小。
主要技术参数
项目 | 单位 | 数据 | |
額定电压 | kV | 126 | |
额定工频耐受电压(1min) | 对地 | K•265 | |
断口间 | K•265 | ||
额定雷电冲击耐受电压 | 对地 | K•630 | |
断口间 | K•630 | ||
SF6气体零表压时的工频耐受电压(5min) | K•95 | ||
额定频率 | Hz | 50 | |
額定电流 | A | 3150 | |
首开级系数 |
| 1.5 | |
额定短路开断电流 | kA | 40 | |
额定短路关合电流(峰值) | 100 | ||
额定短时耐受电流 | 40 | ||
額定蜂值耐受电流 | 100 | ||
額定短路持续时间 | s | 4 | |
额定失步开断电流 | kA | 10 | |
近区故障开断电流 | kA | 90%lk,75%lk | |
额定线路充电开合电流 | A | 31.5 | |
额定操作販序 |
| 0-0.3s-c0-180s-c0 | |
主回路电阻 | μΩ | ≤40 | |
額定六氰化硫气体压力(20℃表压) | Mpa | 0.6 | |
报警/最低功能压力(20℃表压) | Mpa | 0.55±0.03/0.50±0.03 | |
SF6气体年漏气率 |
| ≤1% | |
气体水分含量(V/V) |
| ≤150×10-6 | |
机械寿命 | 次 | 6000(2000×3) | |
无线电干扰电平 | μv | ≤500 | |
爬电距离 | 断口间 | mm | 3906/3150 |
| 对地 | 3906/3150 | |
每台SF6冲入质量 | kg | 10 | |
每台断路器质量 | kg | 1500 | |
Zibo Jinlong Electric Power Equipment Co., Ltd. mainly produces: high and low voltage electrical equipment, vacuum circuit breakers, high voltage isolation switches, solid vacuum ring network cabinets, modular wind and solar power systems, box substations, wind power photovoltaic power generation projects, clean energy Conversion systems and other products, products have passed the 3C certification and the type test report of the national laboratory, the company passed the ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification. It is a network enterprise of the State Grid Corporation of China, Huadian Group (Group supplier), Datang Group, Huaneng Group, Shenhua Group and other large enterprises. It has established a complete sales system and marketing network throughout the country and can provide better quality for customers service.
As a state-level high-tech enterprise, Jinlong has an independent research and development system and a strong scientific research team. The Chinese Academy of Engineering Academician Zhang Yongchuan has built a academician workstation and is the transformation center of Huazhong University of Science and Technology. The company’s technical center and engineering laboratory have been identified as Shandong respectively. Provincial High Voltage Switchgear Engineering Laboratory, Zibo High Voltage Switchgear Solid Insulation Engineering Technology Research Center, Zibo City Enterprise Technology Center, Zibo High Voltage Electrical Equipment Engineering Laboratory, and Zibo Shenhua Electrical Technology Co., Ltd., etc. Established Zibo High-end Electric Equipment Industry Technology Innovation Strategic Alliance. The Clean Energy Application Center and Shenyang University of Technology have jointly built a new energy education and training base, established a school-enterprise joint technical research center, and established a strategic cooperative relationship with China Architecture Design Institute.
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