The power system often suffers natural and artificial disturbances during operation, so malfunction is inevitab.

电力系统运行中，时常经受各种自然和人为的干扰，故障的发生难以避免。

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Shunt trip disconnecter - provides maximum protection by interrupting all power to the system in the event of a control sensed malfunction or overcurrent.

并联跳闸装置- - -一旦控制装置监测到故障发生或电流过载，将自动切断所有连接热水器的所有电源，最大限度保护热水器。

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Waste of electric and malfunction were caused by the shortage existing in design of the technology parameters of polarization power supply units of rectification sets and control system.

介绍了整流机组极化电源装置的控制系统及技术参数原设计中存在的不足之处造成的电能浪费及运行故障。

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