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高压电器  2015 

110 kV 电容式电压互感器油箱发热缺陷分

, PP. 152-157

Keywords: 电容式电压互感器, 发热缺陷, 电气试验, 解体检查, 防范措施

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Abstract:

电容式电压互感器(CVT)是变电站的重要设备,设备停电预试时通过测量其介质损耗因数和电容量可以及时发现设备的绝缘缺陷。但是由于其绝缘结构的特殊性,使得诊断变得更加复杂。针对这个问题,笔者通过红外线测温时发现的一起CVT发热缺陷,进行电气试验检查分析,以及进行了解体检查,对缺陷部位进行判断和验证,并提出了相应的防范措施加强红外测温巡检,提高产品质量,加强在线监测。

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