在受控湿度水平下,泛相机连锁电缆的弧形动力学和侵蚀行为
Bingquan Li1,2, Yijian Zhao1, Ran Ji2
1School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China.
Sensors (Basel, Switzerland)
|August 28, 2025
概括
湿度显著影响了泛相电缆系统 (PCS) 的弧度. 在中等湿度 (50% RH) 时,电弧稳定性和电极磨损减少,这对于PCS设计和风险评估至关重要.
科学领域:
- 电气工程
- 材料科学
- 环境科学
背景情况:
- 由于环境湿度的变化,光谱电缆系统 (PCS) 经历了弧形不稳定和侵蚀.
- 了解这些湿度引起的变化对于可靠的PCS操作和维护至关重要.
研究的目的:
- 研究不同湿度水平对PCS电弧特性和电极侵蚀的影响.
- 在PCS中确定最佳的湿度条件以提高弧度稳定性和减少材料降解.
主要方法:
- 开发了一种新型的湿度控制反流传导弧启动测试平台.
- 集成的数字图像处理与多物理传感器数据 (电流,电压,温度) 进行分析.
- 使用直流电源 (120 V/25 A) 在30%,50%和70%的相对湿度下进行实验.
主要成果:
- 增加的湿度导致更高的接触阻力和积累的弧能.
- 弧度稳定性最初随着湿度的增加而提高,然后下降;低湿度导致了强烈的弧度和更快的侵蚀.
- 电极磨损从粘合剂转移到电化学磨损随着湿度的增加,涉及铜转移.
结论:
- 中等湿度 (50% RH) 优化了PCS电弧稳定性,达到66%的峰值电流传输效率和14.5%的最小损耗率.
- 湿度显著改变PCS弧形行为和电极磨损机制.
- 这些发现为PCS设计优化和在不同湿度下进行风险评估提供了理论基础.
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