电瓷避雷器Issue(1)：21-27,7.DOI:10.16188/j.isa.1003-8337.2026.01.003
基于组合波的信号浪涌保护器开发关键技术分析
Analysis of Key Technologies for the Development of Signal Surge Protective Device Based on Combination Wave
摘要
Abstract
In view of the selection of PCB's substrate and copper foil thickness,determination of decou-pling resistor types and values during the development of SPD,the combination of theoretical derivation and experimental testing were conducted using the combination wave platform and network analyzer.The results show that the lower the dielectric loss and permittivity of PCB's substrate,the higher the cut-off frequency.With the increase of PCB's copper foil thickness,the residual voltage of signal SPD under C2 combination wave impact shows a downward trend.When the copper foil thickness reached 3.5oz,it con-tinued to increase,and the residual voltage decreased to a limited extent.The winding resistor has a lar-ger inductance,resulting in a decrease in the signal SPD cut-off frequency.The new calculation formu-la of decoupling resistance is used to calculate the resistance value and is substituted into the test residual voltage and shunt ratio to verify.The results show that the new calculation formula is effective.关键词
信号浪涌保护器/退耦电阻/截止频率/残压/厚度Key words
signal SPD/decoupling resistance/cut-off frequency/residual voltage/thickness引用本文复制引用
张宏建,张兵兵,陈强,吴疆..基于组合波的信号浪涌保护器开发关键技术分析[J].电瓷避雷器,2026,(1):21-27,7.基金项目
内蒙古自治区科技创新引导项目(编号:41175003).Project supported by Inner Mongolia Autonomous Region S & T Innovation Guidance Project(No.41175003). （编号:41175003）
