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116问答网 > 浪涌保护器和避雷器的区别在哪？为什么浪涌进线前要加一组熔断器？

浪涌保护器和避雷器的区别在哪？为什么浪涌进线前要加一组熔断器？

2025-03-14 07:57:32

推荐回答（1个）

回答1：

答：浪涌保护器既过电压吸收器，一般应该安装在各种大、中功率半导体器件，二极管、晶闸管、GTO、IGBT等的过电压保护，替代传统的阻容吸收装置、硒堆等。重要设备的浪涌保护器前面也装有快速熔断器，其状态开关的触点要送到PLC等控制系统
金属氧化物避雷器（又称压敏电阻器），避雷器主要用于吸收大气过电压或操作过电压，以保护高、低压设备的绝缘不受损坏。
由于金属氧化物避雷器的非线性伏安特性和良好的陡波响应特性，用其组装的避雷器可将过电压限制在较低水平，从而对电气设备的绝缘提供可靠地保护。

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