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首页> 外文期刊>IEE proceedings. Part C >Optical-fibre-based investigations of contact travel, gas pressure and particle concentration in SF/sub 6/ puffer circuit breakers
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Optical-fibre-based investigations of contact travel, gas pressure and particle concentration in SF/sub 6/ puffer circuit breakers

机译：基于光纤的SF / sub 6 / puffer断路器中的接触行程，气压和颗粒浓度的调查

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摘要

Experimental results have been obtained about conditions within SF/sub 6/ puffer circuit breakers during and after the interruption of fault currents up to 45 kA peak using optical-fibre sensors based on chromatic modulation. The particular parameters measured with the optical-fibre sensors were the contact travel, the gas pressure in both the puffer piston chamber and the circuit-breaker tank, the radiative emission from the electric arc and the concentration of micron-sized particles produced by the arcing. The experimental results are compared where possible with theoretical calculations from a computational-fluid-dynamics computer package. The possible role of the particulate material in the longer-timescale conditions within the circuit-breaker tank is considered and the need for a better understanding of the particulate-material properties and formation is highlighted.
机译：使用基于色调制的光纤传感器，在故障电流高达45 kA的峰值中断期间和之后，SF / sub 6 / puffer断路器内部条件得到了实验结果。用光纤传感器测量的特定参数是接触行程，吹气活塞腔和断路器箱中的气压，电弧的辐射发射以及电弧产生的微米级颗粒的浓度。在可能的情况下，将实验结果与来自计算流体动力学计算机软件包的理论计算进行比较。考虑了颗粒物质在断路器箱内较长时间条件下的可能作用，并着重指出了需要更好地了解颗粒物质特性和形成的需求。

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