摘要
为提高高压断路器速度检测效率与精度,提出了一种基于超声波传感器的高压断路器速度检测方法,利用TR40系列超声波换能器产生超声波信号,将发射传感器固定于断路器合/分连接杆上,接收传感器安装在万能三角支架上,通过统计接收和发送信号的频率差,计算当前断路器运行的瞬时速度,并在此基础上开发了断路器机械特性测试仪。现场试验结果表明,超声波传感器安装方便、测试数据精度较高、不确定度小,能满足高压断路器现场速度检测的需求。
In order to improve the efficiency and precision of velocity detection of High voltage circuit breaker （HVCB）, a detection method based on ultrasonic sensor is proposed. The TR40 series of ultrasonic transducer is adopted to generate ultrasonic signals. The emission sensor is fixed on the breaker＇s closing/opening connection rod while receiving sensor installed in the universal triangular bracket. By measuring the frequency difference between emission signals and receiving signals, instantaneous velocity of the current circuit breaker operation can be calculated. Furthermore, a me- chanical characteristic detection instrument for HVCB is developed. Field test results show that the ultrasonic sensor is convenient to be installed and the results has high accuracy and small uncertainty, which satisfies the field test require- ments for velocity detection of HVCB.
出处
《水电能源科学》
北大核心
2011年第12期157-159,共3页
Water Resources and Power
关键词
高压断路器速度测试
超声波传感器
刚合速度
刚分速度
velocity detection of HVCB
ultrasonic sensor
rigid closing velocity
rigid opening velocity
