电力技术检测 - 鸿蒙官网

三相继电保护测试仪如何设置谐波计算方式

发布时间：2023-05-19 10:24

测试操作模式在“参数设置”属性页中设置，可选择三种模式:“手动控制”、“自动增量”和“自动减量”。

电缆故障处理方法有哪些？

发布时间：2023-05-19 10:23

如果地面被挖掘和挖掘损坏，可以挖掘地面来修复绝缘。人工接地未拆除，接地线应拆除。如果负载过大且温度过高，绝缘材料将会老化。应调整负荷，降低温度，更换老化的绝缘材料，并

低压电缆故障查找方法

发布时间：2023-05-19 10:22

跨步电压法适用于所有接地故障电压等级的电缆故障。它是一种利用接地电流输入点周围的两条腿之间的电压来发现电缆故障的方法。具体接线方法是将电力电缆故障检测器的红色夹片连

路灯电缆故障测试仪如何查找故障

发布时间：2023-05-19 10:21

怎么判断避雷器的绝缘性能？

发布时间：2023-05-19 10:21

避雷器的性能可以从阻性的电流基波来判断，或者可以从电流-电压相位角差Φ来更有效地判断，因为90°-Φ等于介电损耗角。如果指定的阻性电流小于总电流的25％，则对应的φ为

变压器直流电阻测试仪的测量和放电

发布时间：2023-05-18 15:46

电缆故障快速查找的方法有哪些？

发布时间：2023-05-18 15:45

2.电缆故障搜索的分段搜索法所谓测声方法，就是找出故障电缆的放电声。该方法对高压电缆芯线与绝缘层之间的绝缘层闪络放电更为有效。当电容器充电到一定电压时，球隙放电电缆的故障芯。在故障

电缆故障低压脉冲法及直闪法工作原理

发布时间：2023-05-18 15:44

鸿蒙电气生产的LD-2004电缆故障测试仪又称埋地电力电缆故障测试仪、矿用电缆故障测试仪、通信电缆故障测试仪、路灯电缆故障测试仪、高低压电缆故障测试仪、直埋电缆故障测

带电电缆识别仪的查找方法

发布时间：2023-05-18 15:43

油浸式变压器绝缘诊断方法

发布时间：2023-05-18 15:43

传统特征值诊断方法中用于诊断油浸式变压器绝缘状态的参数主要有：油中溶解气体表示的化学参数、纤维素绝缘纸的糠醛含量和聚合度；绝缘电阻表示的电气参数，极化指数、介质损耗因

电缆故障处理方法有哪些？

发布时间：2023-05-17 10:43

怎样通过脉冲波形判断电缆故障的位置

发布时间：2023-05-17 10:42

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三相继电保护测试仪如何设置谐波计算方式

电缆故障处理方法有哪些？

低压电缆故障查找方法

路灯电缆故障测试仪如何查找故障

怎么判断避雷器的绝缘性能？

变压器直流电阻测试仪的测量和放电

电缆故障快速查找的方法有哪些？

电缆故障低压脉冲法及直闪法工作原理

带电电缆识别仪的查找方法

油浸式变压器绝缘诊断方法

电缆故障处理方法有哪些？

怎样通过脉冲波形判断电缆故障的位置