A novel vacuum circuit breaker with multiple breaks based on fiber-controlled vacuum interrupter modules

• Main Authors: LIAO, Min-Fu, DUAN, Xiong-Ying, ZOU, Ji-Yan
• Format: Conference Proceeding
• Language: English
• Subjects: Capacitors; Circuit breakers; Costs; Electric discharges; Exact sciences and technology; Flanges; Global warming; Interrupters; Optical fibers; Optical films; Physics; Physics of gases, plasmas and electric discharges; Physics of plasmas and electric discharges; Power supplies; Vacuum technology
• ISSN: 1093-2941
• DOI: 10.1109/DEIV.2004.1422688

Interest in the application of vacuum circuit breaker (VCB) with multiple breaks arises from technical and economic considerations. Based on the introduction of a novel VCB with multiple breaks based on the fiber-controlled vacuum interrupter modules is proposed in this contribution. A fiber-controlled vacuum interrupter module is composed of its own outer insulation, vacuum interrupter, permanent magnetic actuator with its controller and power supply. In order to make a VCB with multiple breaks that can be used in higher voltage grades, the fiber-controlled vaccum interrupter module can be placed in series just like the building blocks. The fiber-controlled technology is used to control the modules at the low voltage area while permanent magnetic actuator operates at the high voltage area. The application of fiber-controlled technology can achieve the aim of separation between high voltage area and low voltage area. The new-style power supply individually provides the energy needed for operating the vacuum interrupter inside the module. The experimental results show that the deviation of operation time in the fiber-controlled module is less than 1ms. Compared with conventional VCBs with multiple breaks, it has a significant reduction in size, weight and cost as well as simpler control and better operating synchronization among its breaks.