TWI668597B - Partial discharge signal capture system - Google Patents
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Abstract
本發明揭露一種局部放電訊號捕捉系統，適用於感測物件之局部放電訊號，據以產生分析資料。局部放電訊號捕捉系統包括根據待測物件周遭之磁場變化而產生感應訊號之至少一高頻電流感測器；與該高頻電流感測器形成電連接之一現場可程式化閘陣列；與現場可程式化閘陣列形成電連接，傳輸控制訊號至現場可程式化閘陣列以修改該程式，並根據分析資料顯示所繪示之波形圖、傅立葉轉換圖、相位分解圖、時間頻率圖中至少一者之人機介面系統。 The invention discloses a partial discharge signal capturing system, which is suitable for sensing a partial discharge signal of an object, thereby generating analysis data. The partial discharge signal capture system includes at least one high frequency current sensor that generates an inductive signal according to a change in a magnetic field around the object to be tested; a field programmable gate array electrically connected with the high frequency current sensor; The programmable gate array forms an electrical connection, transmits a control signal to the field programmable gate array to modify the program, and displays at least one of the waveform diagram, the Fourier transformation diagram, the phase decomposition diagram, and the time frequency diagram according to the analysis data. Human interface system.
Description
本發明是關於一種訊號捕捉系統，特別是關於局部放電訊號捕捉系統。 The present invention relates to a signal capture system, and more particularly to a partial discharge signal capture system.
在現今高科技產業快速發展下，穩定的電力供給越來越成為重要的議題，其中，電力設備的性能與狀態是維持電力系統正常運作的重要因素，若在無預警的情況下斷電，將給科技業帶來巨大損失，所以進一步感測電力設備的性能與監控方法越來越受重視。 Under the rapid development of today's high-tech industry, stable power supply has become an increasingly important issue. Among them, the performance and status of power equipment is an important factor in maintaining the normal operation of the power system. If there is no power failure, it will be powered off. It has brought huge losses to the technology industry, so further sensing the performance and monitoring methods of power equipment is receiving more and more attention.
局部放電通常發生於絕緣體的內部或表面電場集中區域，會產生化學反應侵蝕絕緣材料使其劣化，並在電場集中區域造成放電效果，最後使絕緣材料崩潰進而導致儀器毀損和危及使用者人身安全。 Partial discharge usually occurs in the interior of the insulator or on the surface of the electric field. It will cause a chemical reaction to erode the insulating material to deteriorate it, and cause a discharge effect in the concentrated area of the electric field. Eventually, the insulating material will collapse and cause damage to the instrument and endanger the safety of the user.
一般離線型的局部放電檢測必須在設備停止運轉的情況下才能進行檢測，其實用性略顯不足，且檢測過程中的設備中斷亦會為製程帶來損失，為改善此一缺點，本發明人發明一種不需中斷設備運轉即可檢測待測物局部放電的系統，並配合本發明中的多種分析工具以檢測局部放電訊號，進一步增加判斷的準確性。 Generally, the off-line partial discharge detection must be performed when the equipment is stopped, and its practicality is slightly insufficient, and the equipment interruption during the detection process also causes losses to the process. To improve this disadvantage, the inventor The invention discloses a system for detecting partial discharge of a test object without interrupting the operation of the device, and cooperates with various analysis tools in the invention to detect the partial discharge signal, thereby further increasing the accuracy of the judgment.
有鑑於上述習知之問題，本發明之目的在於提供一種局部放電訊號捕捉系統。 In view of the above conventional problems, it is an object of the present invention to provide a partial discharge signal capturing system.
根據上述之目的，本發明係提出一種局部放電訊號捕捉系統，適用於感測待測物件之局部放電訊號，據以產生分析資料，其包含至少一高頻電流感測器，係根據待測物件周遭之磁場變化而產生感應訊號、與高頻電流感測器形成電連接，執行經配置之一程式，分析感應訊號據以得出分析資料之現場可程式化閘陣列、與現場可程式化閘陣列形成電連接，傳輸控制訊號至現場可程式化閘陣列以修改程式，並根據該分析資料顯示所繪示之波形圖、傅立葉轉換圖、相位分解圖、時間頻率圖中至少一者的人機介面系統。 According to the above object, the present invention provides a partial discharge signal capturing system, which is suitable for sensing a partial discharge signal of an object to be tested, thereby generating analysis data, which comprises at least one high frequency current sensor according to the object to be tested. The surrounding magnetic field changes to generate an inductive signal, form an electrical connection with the high-frequency current sensor, execute a configured program, analyze the inductive signal to obtain a field programmable gate array of analytical data, and a field programmable gate The array forms an electrical connection, transmits a control signal to the field programmable gate array to modify the program, and displays at least one of the waveform diagram, the Fourier transformation diagram, the phase decomposition diagram, and the time frequency diagram of the illustrated waveform according to the analysis data. Interface system.
較佳地，其中人機介面系統還包括資料庫，透過於資料庫中所儲存的複數個指令模式，人機介面系統根據各個不同的指令模式來產生不同控制訊號。 Preferably, the human-machine interface system further includes a database, and the human-machine interface system generates different control signals according to different instruction modes through a plurality of instruction modes stored in the database.
較佳地，複數個指令模式包括頻率修改模式、波形修改模式及觸發訊號修改模式。 Preferably, the plurality of command modes include a frequency modification mode, a waveform modification mode, and a trigger signal modification mode.
較佳地，本發明之局部放電訊號捕捉系統還包括電連接於人機介面系統與可程式化閘陣列之間的通訊介面，透過通訊介面將分析資料與控制訊號轉換為相同之資料格式。 Preferably, the partial discharge signal capture system of the present invention further comprises a communication interface electrically connected between the human interface system and the programmable gate array, and converts the analysis data and the control signal into the same data format through the communication interface.
較佳地，人機介面系統係為符合所接收訊號之通訊協定及資料傳輸格式的通訊硬體包括電腦、行動裝置之設備。 Preferably, the human-machine interface system is a communication hardware including a computer and a mobile device that conforms to the communication protocol and data transmission format of the received signal.
較佳地，人機介面系統更可包括比對單元，透過於比對單元所儲存之標準料與分析資料比對以產生比對結果，人機介面系統據以顯示包括由分析資料與比對結果所繪示之波形圖、傅立葉轉換圖、相位分解圖、時間頻率圖中至少一者。 Preferably, the human-machine interface system further comprises a comparison unit, which compares the standard material stored in the comparison unit with the analysis data to generate a comparison result, and the human-machine interface system displays the data and the comparison data. The result is at least one of a waveform diagram, a Fourier transform diagram, a phase decomposition diagram, and a time-frequency diagram.
較佳地，本發明之局部放電訊號捕捉系統還包括輸入模組，係電連接於高頻電流感測器及現場可程式化閘陣列之間，輸入模組還包括：接收來自高頻電流感測器之感應訊號之訊號接口。 Preferably, the partial discharge signal capture system of the present invention further includes an input module electrically connected between the high frequency current sensor and the field programmable gate array, and the input module further comprises: receiving a sense of high frequency current The signal interface of the sensor's sensing signal.
較佳地，控制訊號包括改變高頻電流感測器感應頻率範圍之修改指令。 Preferably, the control signal includes a modification command that changes the frequency range of the high frequency current sensor sensing.
較佳地，人機介面系統更可包括比對單元，比對單元儲存標準資料據以與分析資料比對產生比對結果，以顯示包括由分析資料與比對結果所繪示之波形圖、傅立葉轉換圖、相位分解圖、時間頻率圖中至少一者。 Preferably, the human-machine interface system further comprises a comparison unit, wherein the comparison unit stores the standard data to compare the analysis data to generate a comparison result, so as to display the waveform diagram, which is represented by the analysis data and the comparison result, At least one of a Fourier transform graph, a phase decomposition map, and a time frequency map.
承上所述之本發明之局部放點訊號捕捉系統藉由人機介面修改現場可程式化閘陣列之執行程式，據以感測待測物之局部放電訊號，並與標準情況進行比對，使用者可藉此來評估設備之運作風險，而不須中斷設備運轉。 The partial discharge signal capture system of the present invention described above modifies the execution program of the field programmable gate array by the human interface, thereby sensing the partial discharge signal of the object to be tested and comparing it with the standard situation. Users can use this to assess the operational risk of the equipment without interrupting the operation of the equipment.
10‧‧‧局部放電訊號捕捉系統 10‧‧‧Partial Discharge Signal Capture System
11‧‧‧高頻電流感測器 11‧‧‧High frequency current sensor
111‧‧‧感應訊號 111‧‧‧Induction signal
112‧‧‧傳輸接口 112‧‧‧Transport interface
120‧‧‧現場可程式化閘陣列 120‧‧‧Field programmable gate array
121‧‧‧分析資料 121‧‧‧Analytical data
122‧‧‧控制訊號 122‧‧‧Control signal
130‧‧‧人機介面系統 130‧‧‧Human Machine Interface System
131‧‧‧資料庫 131‧‧‧Database
132‧‧‧比對單元 132‧‧‧ comparison unit
140‧‧‧輸入模組 140‧‧‧Input module
141‧‧‧訊號接口 141‧‧‧ Signal Interface
142‧‧‧前置放大器 142‧‧‧ preamplifier
143‧‧‧訊號轉換器 143‧‧‧Signal Converter
150‧‧‧通訊介面 150‧‧‧Communication interface
S601~S607‧‧‧步驟 S601~S607‧‧‧Steps
第1圖係為本發明之局部放電訊號捕捉系統之第一實施例方塊圖。 Figure 1 is a block diagram of a first embodiment of a partial discharge signal capture system of the present invention.
第2圖係為本發明之局部放電訊號捕捉系統之第二實施例方塊圖。 Figure 2 is a block diagram of a second embodiment of a partial discharge signal capture system of the present invention.
第3圖係為本發明之局部放電訊號捕捉系統之第三實施例方塊圖。 Figure 3 is a block diagram of a third embodiment of a partial discharge signal capture system of the present invention.
第4圖係為本發明之局部放電訊號捕捉系統之第四實施例方塊圖。 Figure 4 is a block diagram of a fourth embodiment of the partial discharge signal capture system of the present invention.
第5圖係為本發明之局部放電訊號捕捉系統之第五實施例方塊圖。 Figure 5 is a block diagram of a fifth embodiment of the partial discharge signal capture system of the present invention.
第6圖係為本發明之局部放電訊號捕捉系統之人機介面流程圖。 Figure 6 is a flow chart of the human interface of the partial discharge signal capture system of the present invention.
請參閱第1圖，其係為本發明之局部放電訊號捕捉系統之第一實施例方塊圖。如圖所示，本發明之局部放電訊號捕捉系統10包含至少一高頻電流感測器110、現場可程式化閘陣列120、人機介面系統130。本發明之局部放電訊號捕捉系統適用於感測待測物之局部放電，即時分析並呈現於人機介面系統130上。 Please refer to FIG. 1 , which is a block diagram of a first embodiment of a partial discharge signal capture system of the present invention. As shown, the partial discharge signal capture system 10 of the present invention includes at least one high frequency current sensor 110, a field programmable gate array 120, and a human interface system 130. The partial discharge signal capture system of the present invention is suitable for sensing a partial discharge of a test object, and is analyzed and presented on the human-machine interface system 130 in real time.
其中，現場可程式化閘陣列120電連接於高頻電流感測器110與人機介面系統130之間，該高頻電流感測器110感測待測物件之磁場變化而產生一感應訊號111，並將該感應訊號111傳輸至該現場可程式化閘陣列120；使用者透過操作該人機介面系統130，進而傳輸一控制訊號122至該現場可程式化閘陣列120以改變該現場可程式化閘陣列120所執行之程式；該現場可程式化閘陣列120根據所執行之程式分析感應訊號111，傳輸分析資料121至人機介面系統130，進一步地，人機介面系統130根據所接收之分析資料121呈現相對應的顯示內容。 The field programmable gate array 120 is electrically connected between the high frequency current sensor 110 and the human interface system 130. The high frequency current sensor 110 senses a magnetic field change of the object to be tested to generate an inductive signal 111. And transmitting the sensing signal 111 to the field programmable gate array 120; the user operates the human interface system 130 to transmit a control signal 122 to the field programmable gate array 120 to change the field programmable The program executed by the gate array 120; the field programmable gate array 120 analyzes the sensing signal 111 according to the executed program, transmits the analysis data 121 to the human interface system 130, and further, the human interface system 130 receives the data according to the The analysis data 121 presents the corresponding display content.
其中，現場可程式化閘陣列120包括不同之訊號處理模組，係根據控制訊號122而決定感應訊號111所傳輸之模組並據以分析，其中至少包含將感應訊號進一步運算經傳立葉轉換、相位分解，或區分為時間頻率分布資料之分析資料121的不同運算模組。 The field programmable gate array 120 includes different signal processing modules, and determines, according to the control signal 122, the module transmitted by the sensing signal 111 and analyzes the data according to the control signal 122, wherein at least the sensor signal is further calculated and converted, and the phase is converted. Decomposed, or divided into different computing modules of the analysis data 121 of the time-frequency distribution data.
更進一步而言，人機介面系統130根據所接收之分析資料121，可選地顯示包括波形圖、傅立葉轉換圖、相位分解圖、時間頻率圖中之至少一者。 Further, the human interface system 130 optionally displays at least one of a waveform diagram, a Fourier transform diagram, a phase decomposition map, and a time frequency map according to the received analysis data 121.
請參閱第2圖，其係為本發明之局部放電訊號捕捉系統之第二實施例方塊圖，其與本發明之局部放電訊號捕捉系統之第一實施例的差異在於，人機介面系統130中進一步包括一資料庫131，於該資料庫中儲存複數個指令模式，便於當使用者操作人機介面系統130時，點選或輸入相應各指令模式或各指令模式代碼據以根據各指令模式產生相應的控制訊號122，並將控制訊號122傳輸至現場可程式化閘陣列120。 Please refer to FIG. 2, which is a block diagram of a second embodiment of a partial discharge signal capture system of the present invention, which differs from the first embodiment of the partial discharge signal capture system of the present invention in a human interface system 130. Further comprising a database 131, wherein a plurality of instruction modes are stored in the database, so that when the user operates the human interface system 130, clicking or inputting the corresponding instruction mode or each instruction mode code is generated according to each instruction mode. Corresponding control signals 122 are transmitted and control signals 122 are transmitted to the field programmable gate array 120.
更進一步而言，高頻電流感測器110與現場可程式化閘陣列120分別透過相對應之連接埠形成電連接；現場可程式化閘陣列120與人機介面系統130透過相對應之至少一通訊接口形成電連接。 Furthermore, the high-frequency current sensor 110 and the field programmable gate array 120 are respectively electrically connected through corresponding ports; the field programmable gate array 120 and the human-machine interface system 130 correspond to at least one of the corresponding The communication interface forms an electrical connection.
各指令模式包括但不限於例如：選取現場可程式化閘陣列120與高頻電流感測器110形成電連接之連接埠、控制現場可程式化閘陣列120開啟與人機介面系統130電連接之通訊接口或掃描通訊接口、選擇顯示在人機介面系統130之通道等通道選取模式、觸發位準選擇模式、選擇包含波形分析、傅立葉轉換分析、相位分解分析、時間頻率分析中至少一分析功能模式，以及控制人機介面系統130是否儲存所接收之分析資料121。 Each command mode includes, but is not limited to, for example, selecting a connection between the field programmable gate array 120 and the high frequency current sensor 110, and controlling the field programmable gate array 120 to be electrically connected to the human interface system 130. The communication interface or the scanning communication interface, the channel selection mode selected in the channel of the human interface system 130, the trigger level selection mode, the selection including the waveform analysis, the Fourier transform analysis, the phase decomposition analysis, and the time frequency analysis are at least one analysis function mode. And controlling whether the human interface system 130 stores the received analysis data 121.
請參閱第3圖，其係為本發明之局部放電訊號捕捉系統之第三實施例方塊圖，其與本發明之局部放電訊號捕捉系統之第一實施例的差異在於， 於人機介面系統130與現場可程式化閘陣列120間進一步設置一通訊介面150，透過該通訊介面，將人機介面系統130所發送之控制訊號，以及現場可程式化閘陣列120所發送之分析資料轉換為相同資料格式。 Please refer to FIG. 3, which is a block diagram of a third embodiment of a partial discharge signal capture system of the present invention, which differs from the first embodiment of the partial discharge signal capture system of the present invention in that Further, a communication interface 150 is further disposed between the human interface system 130 and the field programmable gate array 120. The control signal sent by the human interface system 130 and the field programmable gate array 120 are sent through the communication interface. Analytical data is converted to the same data format.
進一步而言，相同資料格式係指，將所接收之訊號封包，轉換為具有下述相同格式中之至少一種：資料開頭：係利於接收端接收辨識之封包資料的開頭，用於當接收資料之系統辨識出資料開頭與預計接收之資料開頭不吻合，將為所接收之封包資料封包判定為遭到破壞，進一步將該資料刪除。 Further, the same data format refers to converting the received signal packet into at least one of the following formats: beginning of the data: at the beginning of receiving the identified packet data, and receiving data The system recognizes that the beginning of the data does not coincide with the beginning of the expected data, and will determine that the received packet data packet is damaged, and further delete the data.
資料編號：係提供於接收端辨識係何種資料，藉由不同編號進一步分配所接收之封包運算格式。 Data number: It is provided by the receiving end to identify what kind of data, and the received packet computing format is further allocated by different numbers.
資料驗證：係用於使接收端確認所接收之資料封包是否傳輸完畢，以利接收端進一步進行後續動作。 Data verification: It is used to enable the receiving end to confirm whether the received data packet has been transmitted, so that the receiving end can further perform subsequent actions.
資料長度：係用於確認所接收之資料封包長度，例如，所傳輸之封包資料若為具時間頻率分析資料、相位分解資料，其係會根據所分析之資料形式而改變資料長度，接收端透過封包中之資料長度數據，據以確認所接收之封包資料之大小。 Data length: used to confirm the length of the received data packet. For example, if the transmitted packet data is time-frequency analysis data and phase decomposition data, the data length will be changed according to the analyzed data format. The length data of the data in the packet is used to confirm the size of the received packet data.
其中，本發明之通訊介面150可為RS-232通訊介面。 The communication interface 150 of the present invention may be an RS-232 communication interface.
請參閱第4圖，其係為本發明之局部放電訊號捕捉系統之第四實施例方塊圖。其與本發明之局部放電訊號捕捉系統之第三實施例的差異在於，人機介面系統130中進一步包括一比對單元132，透過於該比對單元132中所儲存之標準資料，以與所接收之分析資料121比對，據以於人機介面系統130顯示比對結果，其中，比對結果所顯示之內容包過透過分析資料與標準資料分別繪示之波形圖、傅立葉轉換圖、相位分解圖、時間頻率圖於同一坐標系之至少一 者。 Please refer to FIG. 4, which is a block diagram of a fourth embodiment of a partial discharge signal capture system of the present invention. The difference from the third embodiment of the partial discharge signal capture system of the present invention is that the human interface system 130 further includes a comparison unit 132 that transmits the standard data stored in the comparison unit 132. The received analysis data 121 is compared, and the comparison result is displayed in the human interface system 130. The content displayed by the comparison result is a waveform diagram, a Fourier transformation diagram, and a phase respectively displayed through the analysis data and the standard data. The exploded view and the time-frequency map are at least one of the same coordinate system By.
請參閱第5圖，其係為本發明之局部放電訊號捕捉系統之第五實施例方塊圖。其與本發明之局部放電訊號捕捉系統之第三實施例的差異在於，其進一步包括電連接於高頻電流感測器110與現場可程式化閘陣列120之間的輸入模組140，輸入模組140包括至少一訊號接口141，訊號接口141係用於接收來自高頻電流感測器之感應訊號，至少一前置放大器142，各前置放大器142電連接於相應之訊號接口141與現場可程式化閘陣列120之間，透過各前置放大器142，將訊號接口141所接收之感應訊號111放大至一指定倍數後，向現場可程式化閘陣列120傳輸感應訊號111。 Please refer to FIG. 5, which is a block diagram of a fifth embodiment of a partial discharge signal capture system of the present invention. The difference from the third embodiment of the partial discharge signal capture system of the present invention is that it further includes an input module 140 electrically coupled between the high frequency current sensor 110 and the field programmable gate array 120, the input mode The group 140 includes at least one signal interface 141 for receiving the sensing signals from the high frequency current sensor, at least one preamplifier 142, and each preamplifier 142 is electrically connected to the corresponding signal interface 141 and the field. Between the programmed gate arrays 120, the sensing signals 111 received by the signal interface 141 are amplified to a specified multiple by the preamplifiers 142, and then the sensing signals 111 are transmitted to the field programmable gate array 120.
更進一步而言，輸入模組140還包括電連接於各前置放大器142與現場可程式化閘陣列120之間的訊號轉換器143，透過訊號轉換器143進一步將經放大之感應訊號轉換為具指定位元數之數位訊號，並將經轉換之感應訊號向現場可程式化閘陣列120傳輸。 Further, the input module 140 further includes a signal converter 143 electrically connected between each preamplifier 142 and the field programmable gate array 120, and further converts the amplified inductive signal into a device through the signal converter 143. A digital signal of the number of bits is designated and the converted sensing signal is transmitted to the field programmable gate array 120.
其中，前置放大器142將感應訊號放大之放大倍率為10至100倍。 The preamplifier 142 amplifies the inductive signal by a magnification of 10 to 100 times.
其中，高頻電流感測器具有至少一傳輸接口112，各傳輸接口112與輸入模組140中之各訊號接口141相對應，高頻電流感測器透過傳輸接口112向輸入模組140傳輸具有不同相位之感應訊號111。 The high-frequency current sensor has at least one transmission interface 112. Each transmission interface 112 corresponds to each signal interface 141 in the input module 140, and the high-frequency current sensor transmits to the input module 140 through the transmission interface 112. Inductive signal 111 of different phases.
根據本發明之局部放電訊號捕捉系統10，其中高頻電流感測器110係為一具複數個組合部件，各部件結合後為中空之環狀結構。 According to the partial discharge signal capturing system 10 of the present invention, the high frequency current sensor 110 is a plurality of combined components, and the components are combined to form a hollow annular structure.
根據本發明之局部放電訊號捕捉系統10，其中高頻電流感測器110係為可感測端點固定半徑範圍內之磁場變化之感測探棒。 The partial discharge signal capture system 10 in accordance with the present invention, wherein the high frequency current sensor 110 is a sense probe that senses changes in the magnetic field over a fixed radius of the endpoint.
根據本發明之局部放電訊號捕捉系統10，其中人機介面系統130 為符合所接收訊號之通訊協定及資料傳輸格式的設備包括電腦、行動裝置等設備。 Partial discharge signal capture system 10 in accordance with the present invention, wherein human-machine interface system 130 Devices that conform to the communication protocol and data transmission format of the received signals include computers, mobile devices, and the like.
復請參照第6圖，其係為本發明之局部放電訊號捕捉系統10之人機介面系統130之操作流程圖，其包括：步驟S601：初始化人機介面系統130 Referring to FIG. 6, which is an operational flowchart of the human interface system 130 of the partial discharge signal capture system 10 of the present invention, the method includes the following steps: Step S601: Initializing the human interface system 130
步驟S602：於人機介面系統130設定觸發模式及分析功能 Step S602: setting a trigger mode and an analysis function in the human interface system 130
步驟S603：人機介面系統130向現場可控制閘陣列20傳送控制訊號 Step S603: The human interface system 130 transmits a control signal to the field controllable gate array 20.
步驟S604：人機介面系統130接收分析資料121 Step S604: The human interface system 130 receives the analysis data 121.
步驟S605：人機介面系統130進行資料判定，進一步輸入資料儲存指令則 Step S605: The human-machine interface system 130 performs data determination, and further inputs a data storage instruction.
執行步驟S606，若輸入顯示繪示圖視則進入步驟S607 Step S606 is performed, and if the display drawing view is input, the process proceeds to step S607.
步驟S606：儲存分析資料121 Step S606: storing the analysis data 121
步驟S607：於人機介面系統130顯示繪示圖示 Step S607: displaying a graphic icon on the human interface system 130
綜上所述，本發明之局部放電訊號捕捉系統其不需停止設備運轉即能量測待測物之磁場變化，透過高頻電流感測器以準確抓取待測物之局部放電訊號，更進一步具有多種數據分析工具以分析驗證設備所產生的局部放電訊號的特性，透過數據分析以檢測待測物之局部放電是否於安全規範，以利使用者即時分析。 In summary, the partial discharge signal capturing system of the present invention does not need to stop the operation of the device, that is, the energy is measured to change the magnetic field of the object to be tested, and the high-frequency current sensor is used to accurately capture the partial discharge signal of the object to be tested. Further, a plurality of data analysis tools are provided to analyze the characteristics of the partial discharge signals generated by the verification device, and the data analysis is performed to detect whether the partial discharge of the test object is in a safety specification, so as to facilitate immediate analysis by the user.
以上所述僅為舉例性，而非為限制性者。任何未脫離本創作之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。 The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.
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Citations (5)
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|---|---|---|---|---|
| US6161077A (en) * | 1999-01-05 | 2000-12-12 | Hubbell Incorporated | Partial discharge site location system for determining the position of faults in a high voltage cable |
| US6448782B1 (en) * | 1999-10-19 | 2002-09-10 | Abb Substation Automation Oy | Arrangement and method for defining the location of source of partial discharges |
| CN103424674A (en) * | 2013-08-02 | 2013-12-04 | 华北电力大学 | Detection device and warning method for partial discharge of power cable terminal |
| TW201621340A (en) * | 2014-12-01 | 2016-06-16 | J Power Systems Corp | Partial discharge determining device and partial discharge determining method |
| CN206248765U (en) * | 2016-10-10 | 2017-06-13 | 江苏省电力公司泰州供电公司 | A kind of hand-held High Frequency Current Sensor for Partial Discharge Detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6161077A (en) * | 1999-01-05 | 2000-12-12 | Hubbell Incorporated | Partial discharge site location system for determining the position of faults in a high voltage cable |
| US6448782B1 (en) * | 1999-10-19 | 2002-09-10 | Abb Substation Automation Oy | Arrangement and method for defining the location of source of partial discharges |
| CN103424674A (en) * | 2013-08-02 | 2013-12-04 | 华北电力大学 | Detection device and warning method for partial discharge of power cable terminal |
| TW201621340A (en) * | 2014-12-01 | 2016-06-16 | J Power Systems Corp | Partial discharge determining device and partial discharge determining method |
| CN206248765U (en) * | 2016-10-10 | 2017-06-13 | 江苏省电力公司泰州供电公司 | A kind of hand-held High Frequency Current Sensor for Partial Discharge Detection |
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