1786-CTK===1786-CTK

===

欠压

    欠压也是我们在使用中经常碰到的问题。主要是因为主回路电压太低(220V系列低于200V，380V系列低于400V)，主要原因:整流桥某一路损坏或可控硅三路中有工作不正常的都有可能导致欠压故障的出现，其次主回路接触器损坏，导致直流母线电压损耗在充电电阻上面有可能导致欠压.还有就是电压检测电路发生故障而出现欠压问题。

：张亮（工程师）    专线：
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