电器与能效管理技术Issue(5)：52-55,4.DOI:10.16628/j.cnki.2095-8188.2025.05.007
2P DC 2 000 V框架隔离开关设计
Design of 2P DC 2 000 V Frame Disconnector
张文龙 1蒋顾平1
作者信息
- 1. 上海良信电器股份有限公司,上海 200137
- 折叠
摘要
Abstract
The 2P DC 2 000 V frame disconnector is suitable for the new generation of new energy systems.For the design of the DC 2 000 V frame disconnector,in terms of the forced isolation of the main arc contact,the insulation parts are added to concentrate the arc on the arc contact,thereby improving the breaking capacity.In terms of reliable control of the contact timing,the appropriate timing difference is determined according to the relationship between the arc column voltage and the residual voltage under different currents,and the influence of contact wear is considered to ensure reliable arc extinction.Combined with high-voltage dynamic insulation simulation and DC arc voltage precise control calculation,the reliability of the product is accurately ensured.Through experimental verification,the new 2P DC 2 000 V frame disconnector meets the requirements of both new and old standards.关键词
2P/DC 2 000 V/主触头/弧触头/动态绝缘/直流弧压Key words
2P/DC 2 000 V/main contact/arc contact/dynamic insulation/DC arc voltage分类
信息技术与安全科学引用本文复制引用
张文龙,蒋顾平..2P DC 2 000 V框架隔离开关设计[J].电器与能效管理技术,2025,(5):52-55,4.
