变电站配网保测装置信号回路改进

分析变电站内配电网信号的采集方式,研究当前设计模式下调度主站端信号漏监视问题及其后果。结合现状,提出一种保测装置信号回路设计改进方案,隔离异常设备,提高调度主站端信号监视的精准性,以保证电网稳定可靠运行。

10kV保测装置综合自动化改造业务流程优化研究

对目前10 kV保测装置综自改造情况进行了分析,针对改造工序受限于停电窗口的问题,提出10 kV保测装置综自改造业务流程优化,通过调试车仓储调试、模拟主站和遥控验收前置等方法优化改造业务流程,有效解决了停电窗口小、改造配线难、应急处理慢和人力资源耗费大的问题。

10kV保测一体装置调试验收优化研究

本文针对10kV保测一体装置调试验收工作中,因装置背板配线困难,验收受限于现场配线进度和工艺水平,存在耗费大量时间进行保护装置采集板接线的问题,研发出一种10kV保测装置调试辅助连接工具并对调试工作进行优化,提高工作效率,减少改造期间时间耗费。

变电站CAN网通讯技术及缺陷排查

介绍CAN-bus总线作为间隔层数据采集的通讯模式损坏，导致通讯节点异常中断的情况，提出查找和处理方法。

A Testing Method for Ratio Restraint Characteristics of Differential Relay Protection of Transformers

In this paper, a method to calculate the slope of the ratio restraint characteristic of a transformer differential relay protection is proposed. The method allows using some concise but effective means to get the slope. Modulating the argument of current output from ONLLY testing equipment can make the relay protection device operate, thus, the data used for calculation would be obtained naturally after several trails. In order to make sure how effective that method could be, some experiment data is given as well.