摘要
研制了一种检测氧化锌避雷器阀片的重复频率充放电装置,采用L C恒流充电技术,通过电压反馈法控 制充放电运行过程。电压反馈控制单元由指轮拨码开关、高压分压器、触发控制器及大功率可控硅组成,可数码连 续预置充电电压值,有充电电压值调节方便、精度高。
A repeated charging and discharging device to test ZnO nonlinear varistor is developed in this paper. The charging technique with L-C constant-current converter is adopted, and the repeated charging and discharging process of the device is controlled by voltage feedback. The control unit is composed of dialer switches, high voltage divider, triggering controller and power SCR. The charging voltage can be preset continuously by the dialer switches. The device has characteristics of high charging efficiency, easy and accurate charging voltage control, strong anti-interference ability to electromagnetic.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2005年第2期14-15,共2页
High Voltage Engineering
关键词
氧化锌避雷器
恒流
电压反馈
ZnO arrester
constant current
voltage feedback
