전자파동으로 泵采购时需要配空转保护器吗？还是买回来后自己设计料罐低液位连锁停泵？
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전자파동으로 泵采购时需要配空转保护器吗？还是买回来后自己设计料罐低液位连锁停泵？哪个比较好，比较节省成本？
전자파동으로 空转保护器比较好、过滤器堵了呢？液位也不变
전자파동으로 电机控制柜中，设置个电机过载保护就可以了、不论低液位、入口堵塞还是发生汽蚀、都会动作、前提是对于连续运转的泵、要与备泵的关系需处理好、是连锁控制还是人工控制
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