Monemi Moein, Shahrtash Seyed Mohammad, Kalantar Mohsen
Center of Excellence for Power System Automation and Operation, School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran.
PLoS One. 2025 Jun 11;20(6):e0314708. doi: 10.1371/journal.pone.0314708. eCollection 2025.
The main task of insulators is to isolate the conductor from the tower. These insulators must be able to isolate the high voltages of the transmission lines from the tower without having a leakage current (LC). These insulators get damaged over time and may not work properly. Currently, identifying and replacing defective insulators, in addition to being time-consuming, requires frequent and long blackouts to be imposed on the customers. For this reason, this paper examines the problems and failures caused by the use of insulators in networks with different voltage levels and suggests the failure rate for planning the maintenance of these electrical network equipment. Based on this, according to the insulator leakage current data, the failure or damage rate of the insulator equipment will be investigated using the normal distribution. This distribution function will calculate the probability of insulator failure using LC data, and then the failure rate and the priority of insulator maintenance will be measured compared to other data. According to this article, the final goal of the proposed methodology will be to determine the failure rate as well as decision-making for the maintenance of the insulator equipment and finally determine the damaged insulator among all the insulators of the electrical network. By identifying the insulators with a higher failure rate, the maintenance team will decide to repair or replace the damaged insulator before the insulator failure and the fault in the power grid.
绝缘子的主要任务是将导体与杆塔隔离开来。这些绝缘子必须能够在无泄漏电流（LC）的情况下，将输电线路的高电压与杆塔隔离开。随着时间的推移，这些绝缘子会受损，可能无法正常工作。目前，识别和更换有缺陷的绝缘子，不仅耗时，还需要对客户频繁实施长时间停电。因此，本文研究了不同电压等级网络中使用绝缘子所导致的问题和故障，并提出了用于规划这些电网设备维护的故障率。基于此，根据绝缘子泄漏电流数据，将使用正态分布研究绝缘子设备的故障或损坏率。该分布函数将利用泄漏电流数据计算绝缘子故障的概率，然后与其他数据相比，测量绝缘子维护的故障率和优先级。根据本文内容，所提出方法的最终目标将是确定故障率以及对绝缘子设备维护进行决策，最终在电网所有绝缘子中确定损坏的绝缘子。通过识别故障率较高的绝缘子，维护团队将在绝缘子故障和电网故障发生之前决定修理或更换损坏的绝缘子。
