高能正温度系数电阻与氧化锌非线性电阻在灭磁装置中的应用  

High-Energy Semister and Zinc-Oxide Non-Linear Resistor Used in magnetic eraser Unit

作　　者：吴光军[1] 

机构地区：[1]华中科技大学水电与数字化工程学院,湖北武汉430074

出　　处：《电工技术》2003年第9期51-52,共2页Electric Engineering

摘　　要：介绍了用高能正温度系数电阻 PTC 与氧化锌非线性电阻为主构成的电子换流器与移能器组成的新型灭磁装置的灭磁原理和参数设计方法。该装置可实现灭磁时灭磁开关主触头的无弧分断。它是替代由熔断器和可控硅跨接器组成的无弧建压辅助灭磁方案的最佳选择。The paper introduces the principle of magnetic eraser and parameter design method of the new type magnetic eraser unit composed of electronic current converter and energy moving unit with high-energy semister and zinc-oxide non-linear resistor as the main part.With the said unit,no-arc separation of magnetic eraser switch's main contact can be realized when magnetic eraser is carried out.it is the best substitute choice of the solution for no-arc voltage building auxiliary magnetic eraser composed of fuser and silicon controlled jumper unit.

关 键 词：灭磁装置 灭磁系统 大型发电机组 高能正温度系数电阻 氧化锌非线性电阻 

分 类 号：TM31[电气工程—电机]