| 摘要 |
PURPOSE: A GIS(Gas Insulated Switchgear) local digital system for subway control is provided to grasp a cause of the trouble of the GIS by including an SOE(Sequence Of Event) module. CONSTITUTION: A CPU(120) is arranged in a housing(110). The CPU controls a GIS and a transformer. A communication protocol converter(160) converts the digital signal about the state of the GIS and the transformer into a communication protocol. A display unit(150) provides a screen and an input unit for controlling the GIS in a field. An input and output control cable(190) connects the CPU and the GIS. A relay unit(180) blocks the flow of the current when the current flowing between the transformer and the GIS is abnormal. An SOE module(140) is connected to the input and output control module. The SOE module provides the detail device signal of the GIS to the CPU.
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