华电技术 ›› 2020, Vol. 42 ›› Issue (1): 73-77.

• 技术交流 • 上一篇    下一篇

在运分相操作GIS断路器现场改造

  

  1. 1.湖北华电西塞山发电有限公司,湖北黄石〓435000; 2.湖北西塞山发电有限公司,湖北 黄石〓435000; 3.湖北华电武昌热电有限公司,武汉〓430000;4.华电湖北发电有限公司黄石热电分公司,湖北黄石〓435000
  • 出版日期:2020-01-25 发布日期:2020-03-20

Field transformation of GIS circuit breaker in phasedivision operation

  1. 1.Hubei Huadian Xisaishan Power Generation Company Limited,Huangshi 435000, China; 2.Hubei Xisaishan Power Generation Company Limited, Huangshi 435000, China; 3.Hubei Huadian Wuchang Thermal Power Company Limited,Wuhan 430000, China; 4.Huangshi Thermal Power Generation Branch of Huadian Hubei Power Generation Company Limited,Huangshi 435000,China
  • Online:2020-01-25 Published:2020-03-20

摘要: 为防止发电机组非全相运行而导致机组损坏,某电厂将在运分相操作气体绝缘金属封闭开关设备(GIS)断路器现场改造成三相机械联动操作机构。针对机组实际运行情况,通过对比2种改造方案,确定了不解体断路器,仅调整部分物料尺寸,保证传动部分可与现场使用的断路器转轴直接连接的改造方案。该方案具有造价低、不需要停母线、不解体断路器灭弧室、简单方便、改造灵活等优点,从根本上消除了发电机变压器组GIS断路器非全相的风险,保证了设备安全运行。

关键词: GIS, 断路器, 非全相, 三相机械联动

Abstract: To prevent units from being damaged by open phrase operation, a power plant planned to update GIS circuit breakers in phasedivision operation into threephase mechanicallinked mechanism on site.Comparing two updating schemes and the operation situation of the unit, nondisassembling circuit breaker, partial adjustment on the size of material,and direct connection between the transmission part and the shaft of the circuit breaker must be taken in the updating scheme. The scheme has the advantages of low cost, nonstop busbar, arc extinguishing chamber with nondisassembling circuit breakers, convenience, flexible transformation and so on, which fundamentally eliminates the risk in the open phase operation of GIS circuit breakers in generator transformers,and ensures the safe operation.

Key words: GIS, circuit breaker, open phase, threephase mechanical linkage