... 防止失速内部计数器保护 Anti-stall timer protection 启动保护控制 Start protection control 检修操作 Inspection operation ...
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Put any control handle to the working position, press the "start" button, the total contactor should not move, then explain the zero position protection has played a role.
把任一个控制手柄拨到工作位置上，再按“起动”按钮，总接触器应不动作，则说明零位保护已发挥作用。
Put any control handle to the working position, press the "start" button, the total contactor should not move, then explain the zero position protection has played a role.
④将所有操作手柄拨在中位，按动“起动”按钮，查看总接触器的动作情况，再按“停止”按钮，总接触器应跳开。
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