建筑物低压配电系统电涌保护器能量配合分析

摘要

低压配电系统中，实现电涌保护器（Surge Protective Device，缩写成SPD）之间有效的配合，确保发生雷击瞬间各级SPD依次按级启动，从而保护设备免遭雷电损坏，需要对SPD各种能量配合方案进行分析，选择更优的解决方案。本文通过行波理论分析SPD前后级的关系，提出各级电源SPD与被保护设备能量配合基本原则和方法，对实际工程问题具有重要指导意义。%In low-voltage power distribution system, in order realize the effective coordination of Surge Protective Device (SPD) and ensure that SPD at all levels successively start by grade in the lightning instantaneous, so as to protect equipment from lightning damage, it is necessary to analyze different SPD energy cooperation solutions and choose a better solution. Based on the traveling wave theory, this paper analyzes the relationship between the before and after level of the SPD, proposes the basic principle and method of energy cooperation between all levels of SPD power and protected equipment, which has important guiding significance to the actual engineering problems.