摘要
基于磁控脉冲放电的真空度测试仪在电力系统中广泛应用,但其测量结果和精度越来越受到关注。笔者论述了真空度校验仪的测量原理,阐述了校验仪主要四部分的设计,包括真空灭弧室选择、抽真空系统、绝缘考虑和真空度测量,给出了校验仪的控制流程和方法,通过测试介绍了校验仪装置的抽真空时间曲线、典型离子电流与真空度关系曲线及在短期重复测试的问题及解决办法。该装置适合电力系统用校验12 kV真空灭弧室真空度测试仪的校验。
Vacuum degree measurement of vacuum interrupter based on magnetron discharge method has been used extensively in the power system,and the precision has been paid more and more attention.In this paper,a vacuum calibration instrument was studied.Firstly,the measurement principles and design was described,and its four parts including vacuum interrupter choice,vacuum pumping system,insulation consideration and measurement of vacuum degree were presented.The control method of the instrument was also given.Via the experiment and test,the vacuum pumping time,relation curve of typical ionic current and vacuum degree,and repetitive measurement problem were presented.It can be found that the test instrument of vacuum interrupter can be used for the calibration.
出处
《高压电器》
CAS
CSCD
北大核心
2011年第2期22-26,共5页
High Voltage Apparatus
基金
国家自然科学基金重点项目(50437020)~~
关键词
真空开关
真空度测量
磁控放电法
校验仪
vacuum interrupter
vacuum degree measurement
magnetron discharge
calibration instrument
