直流电源避雷器又称电源防雷模块，电涌保护器/浪涌保护器|浪涌抑制器|防雷器|避雷器都是一系列防雷产品。
连接于极线的输电设备主要有平波电抗器、滤波电容器、直流电压分压器、光学电流传感器、直流避雷器等。
The equipment which connected in the DC bus includes smoothing reactors, capacitors, voltage dividers, optical current transducers and arresters.
而相关标准及导则的制订，直流金属氧化物电阻片的制造与检验，多柱（或只）避雷器的电流分布测量是其国产化的关键。
So, the key techniques for development of MOA domestics are correlation standards, making and test of elements for DC MOA, and the measurement of non-uniform current between multi-column arresters.
分析认为，与相对成熟的交流金属氧化物避雷器相比，直流金属氧化物避雷器的研究和试验较复杂。
Based on analysis it is considered that the development and test of HVDC MOA are very complex in contrast with relatively maturation HVAC MOA.
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