首页|适用于550 kV GIS现场的局放检测方法研究与应用

适用于550 kV GIS现场的局放检测方法研究与应用

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随着GIS设备投运数量的逐渐增加,由设备本身缺陷造成的故障时有发生,而局部放电测量是检测GIS缺陷最方便、有效的方法.为确定真实局放量与人工脉冲之间的最佳匹配规律,以验证超高频局放测量方法的灵敏度,以550 kV GIS产品为研究对象,选择金属颗粒模型作为标定5 pC模型,获取标定5 pC时的陡脉冲信号,并将该信号注入内部UHF传感器进行测量,结果表明获取的内部信号UHF传感器噪声水平明显高于标准值,验证了该方法的有效性,为后续GIS产品现场局放检测方法实施的准确性和可靠性提供了依据.
On-site Partial Discharge Detection Method for 550 kV GIS and Its Application
With the gradual increase in the number of GIS equipment put into operation,faults caused by the defects of the equipment itself occur frequently. Partial discharge (PD)measurement is the most convenient and effective method to de-tect GIS defects. In order to determine the best matching rule between real PD and artificial pulse,so as to verify the sen-sitivity of UHF PD detection method,this study was focused on 550 kV GIS. Metal particle model was selected as the calibration 5 pC model to acquire a steep pulse signal at a calibrated 5 pC. The acquired signal was injected into the built-in UHF sensor for measurement. The proposed method was then verified capable of acquiring internal signal with UHF noise level significantly higher than the standard value,and effective and helpful for accuracy and reliability of the subse-quent implementation of the PD detection for GIS products.

UHF detectionultrasonic detectionpartial dischargeGISsteep pulse voltage

高天浩、屈婷、侯磊、崔庆、张彤辉、王兆珉

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山东泰开高压开关有限公司,山东 泰安 271000

超高频检测 超声波检测 局部放电 GIS 陡脉冲电压

2024

电工技术
重庆西南信息有限公司(原科技部西南信息中心)

电工技术

影响因子:0.177
ISSN:1002-1388
年,卷(期):2024.(7)
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