发布时间:2025-02-07 18:42:35
如果没有跳闸 就表示进入保护范围了 如果是额定电流是1600A 那长延时是1.15倍开始保护了 但是还没有达到跳闸的电流
闭门器关门时慢慢关到30度时速度变快猛烈撞击门框造成很大声音
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