摘要
针对某交流不间断电源系统的绝缘监视仪运行中频繁出现绝缘低报警问题,通过深入分析,发现其报警的真正原因是绝缘监视仪采样频率偏高,导致负荷对地电容的容抗给绝缘电阻测量结果带来了较大误差。采用新型号的低频率绝缘监视仪后,解决了该问题。
Aiming at the problem which insulation low resistance alarm was emerged frequently in running cer- tain AC UPS system insulation monitor, it was found that the true reason was the signal frequeney of the insulation monitor being so high to lead measure error of insulation resistance by the capacitor of the load. After the new type of low frequency insulation monitor, the problem was resolved.
出处
《低压电器》
北大核心
2010年第5期62-64,共3页
Low Voltage Apparatus
关键词
绝缘监视
信号频率
报警
insulation monitor
signal frequency
alarm
