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FAULT DATA ANALYSIS INTERNAL ABNORMALITY CONDITION MONITORING DIAGNOSIS FUNCTION EMBEDDED SWITCHGEAR WITH FAULT MONITORING-DIAGNOSIS CONTROLLER
FAULT DATA ANALYSIS INTERNAL ABNORMALITY CONDITION MONITORING DIAGNOSIS FUNCTION EMBEDDED SWITCHGEAR WITH FAULT MONITORING-DIAGNOSIS CONTROLLER
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机译：故障数据分析，内部异常条件监测，嵌入式功能的故障诊断开关控制器
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摘要
The present invention relates to a switchgear having an embedded fault monitoring and diagnostic device with fault data analysis, internal abnormality condition monitoring, and diagnosis functions. According to the present invention, the switchgear comprises: a function storing voltage, current, and contact data before/after the accident in a memory inside a fault monitoring and diagnosis device when a breaker trip operation occurs or under voltage is detected due to short circuit and ground fault accidents in customer electric equipment receiving power from a power grid of an electric power company, and checking occurrence date, and the magnitude and an accident waveform of accident voltage/current through a color graphic liquid crystal display (LCD) as necessary to perform accident analysis; and an all-time monitoring and diagnosis function using an ultrahigh frequency (UHF) sensor, a tertiary vibration acceleration sensor, a temperature/humidity sensor, and a fault monitoring and diagnosis device when an abnormal state, such as insulation degradation, arc, flame, overheat, vibration/shock, door opening in a live line state, and the like, occurs inside the switchgear. Accordingly, using such function, fault analysis, risk display, buzzer alarm, breaker control, voice alarm, and remote monitoring are performed, thereby being able to stabilize power supply, extend a device line, and enhance user safety. According to the present invention, the switchgear comprises a transformer, the UHF sensor, the tertiary vibration and acceleration sensor, the temperature/humidity sensor, and the fault monitoring/diagnosis device.
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