智能低压集中选择性漏电保护测控装置开发

The Development of Smart Low Pressure Centralized Selective Leakage Protection Monitoring Device

在分析国内漏电保护装置现存问题的基础上,提出了一种基于群体比幅比相和零序电流幅值法原理综合利用,可以智能实现漏电保护的横向、纵向选择性的矿井低压电网集中选择性漏电保护系统。该系统以32位DSP处理器为核心,重点讨论该系统的工作原理、硬件结构、软件设计。经现场运行实现了漏电保护的快速性、选择性和准确性。

This paper comparing amplitude and phase and zero sequence current amplitude principle of comprehensive utilization of smart leakage protection based on analysing domestic leakage protection device. It can achieve leakage protection of horizontal and vertical mine low-voltage power grid selective focus selective leakage protection system. The system has 32 DSP processor as the core and focuses on the working principle, hardware architecture and software design. The field operation realized a rapid leakage protection, selectivity and accuracy.