傳統使用人力定期檢修地下電纜系統，不但造成成本支出負擔，也無法有效地監控整體電纜系統狀況，因此建立一套完善的長期電力電纜監控系統，持續多點監測電纜絕緣狀態，適時提出警訊，如此可以有效地提升電力系統品質與安全。
　　本文針對地下電纜常見事故，工程施工的電纜接續部份，以配電級地下電纜接頭為實驗對象，建置一套電力電纜分散式監控系統量測多點局部放電信號。本文系統架構，在硬體電路部份以微控制器晶片TMS320F28069控制信號量測電路、資料運算與資料傳輸之功能；軟體程式部份包含資料儲存與展示之人機介面。
　　本文中電力電纜分散式監控系統經過實際應用至同時監測多個人為瑕疵電纜接頭後，得到的量測數據確實可以用來判斷電纜接頭絕緣狀態，證明此系統的確能達到監控整體電纜系統狀況之目標。

　　In the past, maintaining the underground cable system periodically by the personnel has not only burdened with the cost but also been not able to monitoring the overall cable system effectively. Therefore, building a complete monitoring system of power cable for long time, that distributively monitors the insulation status of cable continuously and issues a warning timely, can greatly promote the quality and safety of power system.
　　In terms of the cable joint assembled by the personnel, that is one of common accident of the underground cable system, this thesis build a distributed monitoring system for power cable with distribution cable joint to acquire multiple partial discharge signal sources. The system structure in this thesis can be divided into two parts, one is hardware circuit based on microcontroller chip TMS320F28069, that instructs signal acquiring circuit and data computation and transmission, the other is software program which execute data storage and show by HMI.
　　By applying distributed monitoring system for power cable to monitor multiple cable joints contained artificial defection simultaneously, the acquired data can truly identify insulation status of cable joint. According to experiment mentioned above, it prove that the distributed monitoring system for power cable can truly monitor overall cable system.

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