Method and equipment for detecting ground insulation fault of cathode bus of aluminum electrolysis cell

• Main Authors: LI KANG, HE JIPING, WEI QIWEI, LIANG JIAYUAN
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a method and equipment for detecting a ground insulation fault of a cathode bus of an aluminum electrolysis cell, and the method comprises the steps: arranging a plurality of detection devices in an aluminum electrolysis cell system, monitoring the ground voltage change of the cathode bus of the aluminum electrolysis cell, analyzing the system impedance, and enabling the system impedance to change when the ground insulation fault occurs, compared with an existing detection method, the method has the advantages that the positioning of the fault point is more accurate, and only a small number of detection nodes are needed. 一种铝电解槽阴极母线对地绝缘故障检测方法及设备，本发明通过在铝电解槽系统设置若干检测装置，通过监测铝电解槽阴极母线对地电压变化，分析系统阻抗，当出现对地绝缘故障时，系统阻抗发生变化，从而根据变化值计算出故障点位置，与现有的检测方法相比，故障点的定位更加准确，且只需要少量的检测节点。