中壓開關柜狀態監測裝置設計 

吳宗武，江和，傅培村，游勝強 
福州大學 電氣工程與自動化學院，福建 福州 350108 
 

摘 要：以中壓開關柜的電壓、電流、頻率、功率和溫度為監測對象，設計了一套以dsPIC單片機為核心的在線監測裝置。該裝置由互感器采集開關柜的電壓和電流信號，頻率檢測模塊檢測電流頻率，紅外溫度傳感器采集開關柜的溫度信號，給出了硬件電路設計及軟件流程。實際運行結果表明，該裝置具有較高的測量精度且實現了對設備的非接觸式測溫。
關鍵詞：開關柜；狀態監測；非接觸式測溫
中圖分類號：TM591 文獻標識碼：A 文章編號：1007-3175(2014)04-0012-03

Monitoring Device Design for Medium-Voltage Switchgear State 

WU Zong-wu, JIANG He, FU Pei-cun, YOU Sheng-qiang 
College of Electrical Engineering & Automation, Fuzhou University, Fuzhou 350108, China 
 

Abstract: With voltage, current, frequency, power and temperature of medium-voltage switchgear as monitoring objects, this paper designed a set of on-line monitoring device taking single chip dsPIC as the core. The device collected voltage and current signals of switchgear with mutual inductors, testing current frequencies with frequency modules and collecting temperature signals of switchgears with infrared temperature sensors. This paper gave the hardware circuit design and software flow chart. The actual operation result shows that the device is with higher measurement accuracy, realizing non-contact temperature measurement for the equipment.
          Key words: switchgear; state monitoring; non-contact temperature measurement

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