【摘要】 以国际电工委员会(IEC)和我国关于高压断路器合成试验的相关标准为依据,笔者提出了一种基于真空触发开关(TVS)的电流源快速合闸开关和全电压关合试验回路。分析了全电压关合试验的实施难点以及影响与直接试验等价性的主要因素,引入短路关合电流是否投入的综合判据,设计并实现了可进行额定参数为110 kV/63 kA电流源主控开关和全电压关合试验系统样机。以进行具有最大预燃弧时间的全电压关合为例,对所研究的试验系统进行了功能和可靠性现场试验。结果表明,该系统在大功率试验站强电磁干扰环境下具有较高的控制精度和工作稳定性。更多还原

【Abstract】 Taking the IEC and Chinese national standards on synthetic test of high-voltage circuit breaker as the guidance,a closing switch of current source based on triggered vacuum switch(TVS) and a synthetic making test circuit at full rated voltage were presented.The key difficulty to perform a synthetic making test at full rated voltage and the main factors impacting the equivalent condition and performance of synthetic test with direct test were analyzed.The criterion on whether the launching device of current source is to work was also discussed.A prototype of the proposed launching device of current source at rated parameter 110 kV/63 kA and the measurement and control system for synthetic making test were designed and implemented.The functional and reliability tests of the system at the applied peak voltage were carried out in Xi’an High Voltage Apparatus Research Institute.The results indicate that the measurement and control system performs accurately and reliably in high power laboratory condition.更多还原