Potential causes: Mechanical problem with pump, motor, or hydraulic system, malfunction in IGBT controller.

可能的原因: 泵, 电机或液压系统的机械故障, 或IGBT控制器误动作.

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Otherwise lead to equipment other than the normal work and lead to dangerous and mistaken action.

否则导致设备的非正常工作及误动作而导致危险.

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This paper studies the influence of converter transformer - zero sequence current on valve short circuit protection.

笔者研究了 换流 阀三角形侧零序环流对阀短路保护误动作的影响.

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But there are possibility of both incorrect operation and refusal to operte of thermo - thchnique protective contacts.

但热工保护接点都存在误动作或拒动作的失效可能.

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