介绍了断路器瞬动特性的检测技术。
This paper introduced the technology of testing instantaneous characteristics for circuit breaker.
给出了长延时和瞬动二段保护的算法流程。
Flow diagrams of algorithm for inverse time current protection and instantaneous over current protection were given as well.
给出了长延时和瞬动二段保护的算法流程。
Flow diagrams of algorithm for inverse time current protection and instantaneous over current protection were give…
算法的实现简洁快速,兼顾瞬动保护的快速性和可靠性。
The algorithm, which takes both quickness and reliability into consideration, is convinent and suitable for distribution network.
文章最后,介绍了计算机控制的断路器瞬动特性试验设备。
The circuit breaker's instantaneous characteristics test equipment controlled by computer is introduced at the end of this paper.
该断路器通过拨码开关完成整定电流、脱扣时间、瞬动倍数等参数的设定。
Through dial switches the circuit breaker can set rated current, tripping time, instantaneous multiple and so on.
用窗口实时移动的思想计算当前时刻以前一周波电流方均根值平方作为瞬动脱扣的判断依据。
Using the method of window moving in real time, the root mean square value of current of the last cycle was calculated as the criteria for instantaneous overcurrent protection.
在此基础上首次提出了采用操作故障率等级与瞬动保护成功率等级作为低压断路器的可靠性指标。
Failure ratio and success ratio degree were confirmed as the reliability indexes of low-voltage circuit breaker at the first time.
对比开阀和气压脉冲所形成的两种瞬变流形式的压力波传播速度、压力等参数,发现气压脉冲更能增加管道中水流的紊动程度,冲洗效果更好。
Barometric pulse could cause stronger disordery degree and better flushing effect by comparing the transfer rates of two pressure waves and pressures caused by valve opening and barometric pulse.
对比开阀和气压脉冲所形成的两种瞬变流形式的压力波传播速度、压力等参数,发现气压脉冲更能增加管道中水流的紊动程度,冲洗效果更好。
Barometric pulse could cause stronger disordery degree and better flushing effect by comparing the transfer rates of two pressure waves and pressures caused by valve opening and barometric pulse.
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