產品介紹∣變電所開關櫃｜電纜局部放電監測｜定位

為先進的設備監測及局部放電預警系統，可全年全天候持續監測變電所開關設備及電纜的局部放電活動。
全面性的局部放電監測：
- 提供關於設備實際狀態的寶貴資訊 - Astute® HV 透過同步精準的測量及分析設備的實際狀態，而實現變電所的漸進式管理。
- 透過降低成本、改善可靠性與效率，提高設備管理的效益。
- 減少開關設備意外的當機。
- 提高現場安全性。
新一代的技術：Astute® HV 是EA Technology近40年來在局部放電活動測量及解讀方面，領先市場的獨家經驗的產品。
多種感測器系統：Astute® HV是新一代設備管理系統的一部份，整合多種局部放電器的功能在單一儀器內。
優點及特點：
- 2年內回收設備成本。
- 獨家的外部雜訊消除技術，能在高雜訊環境下辨識局部放電活動。
- 以無比的精度定位局部放電，免除高昂的調查需求。
- 創新的非侵入式測量技術、靈活的系統安裝及移動、最大程度的減少開關設備當機及接線需求。
- 持續的線上狀態監測，能及早發現設備惡化情況，並依據偵測結果採取防範措施。
- 內部局部放電、表面局部放電及電纜內局部放電活動，全都可以進行測量及分析，從而預防故障發生。
- 監測與局部放電的變化有關的環境溫/濕度。
- 可設定警報及通知訊息，能立即反應惡化中的狀態。
- 直觀的網頁型管理暨資料分析系統，既簡單又好用。
- 可選購智能雲端解決方案，從遠端管理多個系統。
- 可容納最多300個局部放電測量點，即使最大的系統也適用。
- 產品型式可選擇固定式或可攜式系統，能滿足大型或小型站點的需求。
系統功能：可同時持續監測幾百個點的局部放電活動的位置、大小及嚴重程度。
局部放電偵測：在隨時間記錄的同時，持續檢查在絶緣表面、絶緣內部元件及電纜內有無局部放電活動。
局部放電預警：
- 以智能型組態配置設定的預警系統，可在每個通道個別設定臨界值，以適用不同的測量類型。
- 可選購透過SCADA、電子郵件及SMS發送通知。
局部放電測量：最多300個測量點同時測量局部放電活動。
局部放電趨勢：最多300個並存的測量點監測局部放電活動隨著時間的變化及與環境條件（溫度和濕度）的關聯性。
局部放電分析：可持續評估及報告局部放電活動，並可從測量裝置、桌上型電腦或透過雲端讀取資料。
局部放電定位：使用飛行時間測量法測量到1ns（奈秒）的解析度，定位局部放電活動來源在30cm以內。

UAstute® HV 測量點裝置：
- 暫態地電壓檢測（TEV）：
  - 測量範圍：0～60dBmV。
  - 頻寬：3～80MHz。
  - 解析度：1dB。
  - 精度：±1dB。
  - 定位解析度：1ns。
- 超音波檢測：
  - 測量範圍：-7dBμV～68dBμV。
  - 解析度：1dB。
  - 精度：±1dB。
  - 傳感器靈敏度：-65dB（0dB = 1volt/μbar rms SPL）。
  - 傳感器中心頻率：40kHz。
  - 傳感器直徑：16mm。
- 電纜局部放電：
  - 測量範圍：0～102,400pC。
  - 頻寬：200kHz～20MHz。
  - 解析度：50pC。
- 指示燈：
  - 電源LED燈：紅/綠雙色LED燈。
  - 狀態LED燈：紅/綠雙色LED燈。
  - TEV狀態：紅/綠雙色LED燈。
  - 超音波狀態：紅/綠雙色LED燈。
  - 電纜局部放電狀態：紅/綠雙色LED燈。　
- EMC/安規：
  - 安規：安全超低電壓（SELV）。
  - EMC耐受性標準：符合工業等級。
  - EMC放射性標準：符合工業等級。
可攜式中央主機：
- 中央主機指示燈：
  - 系統電源：1個綠色LED燈。
  - UltraBus電源：1個綠色LED燈。
  - 測量點健康狀態：1個綠色LED燈。
  - 警報、SCADA輸出1-3：4個紅色LED燈。
- EMC/安規：
  - 安規等級：1。
  - EMC耐受性標準：符合工業等級。
  - EMC放射性標準：符合工業等級。
詳細規格、配件、軟體及選購，歡迎洽詢。

Award winning advanced asset monitoring and PD alarm system
For 24/7 monitoring of Partial Discharge (PD) activity in substation switchgear and cables
Comprehensive PD Monitoring:
- Provides valuable information on the actual condition of assets. The Award Winning Astute® HV enables progressive management of substations through its ability to precisely measure and analyse the actual condition of assets simultaneously.
- Enhances the effectiveness of asset management, by improving reliability and efficiency with reduced costs
- Reduces unplanned switchgear outages
- Increases site safety
Next Generation Technology: The Astute® HV is the product of EA Technology’s unique experience as a pioneer in the measurement and interpretation of PD activity for nearly 40 years.
Multiple Sensor Systems: The Astute® HV is part of a new generation of asset management systems, combining the functions of multiple PD instruments in a single package.
Benefits and Features:
- Cost of installation payback within two years
- Astute® HV unique external noise cancellation allows it to identify PD in high noise environments
- PD is located with unrivalled precision, eliminating costly investigations
- Innovative non-intrusive measurement technology allows flexible system installation and movement with switchgear outage and minimal cabling
- Continuous online condition monitoring provides early detection of asset deterioration, enabling informed preventative measures
- Internal PD, surface PD and PD in cables are all measured and analysed thereby pre-empting failures
- Monitoring of environmental conditions correlates changes in PD with humidity and temperature
- Configurable alarms and notifications allow instant response to deteriorating conditions
- Intuitive web-based management and data analysis system is simple and easy to use
- The option of intelligent cloud-based solution capable of remotely managing multiple systems
- Capacity for up to 300 individual PD measurement points so that even the largest of systems can be covered
- Product options include both fixed and portable systems to suit large or small site requirements
System Capabilities: The Astute® HV continuously monitors hundreds of points simultaneously, measuring the location, magnitude and severity of PD activity.
PD Detection: Continuously checks for the presence of PD activity on the surface of insulation, internal to components and in cables while recording over time.
PD Alarms:
- Alarm systems with intelligent configuration capabilities, allowing thresholds to be set individually on each channel, for different measurement types
- Optional notifications via SCADA, email and SMS.
PD Measurement: Collates PD activity from up to 300 concurrent measurement points.
PD Trending: Monitors changes in PD activity from up to 300 concurrent measurement points over time, together with correlation to environmental condition (temperature and humidity).
PD Analysis: Evaluates and reports on PD activity continuously, with data accessible on the device, on the desktop or via the cloud.
PD Location: Uses time-of-flight measurement to a resolution of 1ns (nanosecond), locating the source of PD activity to within 30cms. Amplitude is not a sufficient indicator of PD so time-of-flight is used to gain an accurate location.

Astute® HV Node:
- TEV:
  - Measurement Range: 0 to 60dBmV
  - Pass Band: 3 to 80 MHz
  - Resolution: 1dB
  - Accuracy: ±1dB
  - Precedence Resolution: 1ns
- Ultrasonic:
  - Measurement Range: -7dBμV to 68dBμV
  - Resolution: 1dB
  - Accuracy: ±1dB
  - Transducer Sensitivity: -65dB (0dB = 1volt/μbar rms SPL)
  - Transducer Centre Frequency: 40 kHz
  - Transducer Diameter: 16mm
- Cable PD:
  - Measurement Range: 0 to 102,400pC
  - Pass Band: 200 kHz to 20MHz
  - Resolution: 50pC
- Indicators:
  - Power LED: Bi-colour Red/Green LED
  - Status LED: Bi-colour Red/Green LED
  - TEV State: Bi-colour Red/Green LED
  - Ultrasonic State: Bi-colour Red/Green LED
  - Cable PD State: Bi-colour Red/Green LED
- EMC/SAFETY:
  - Safety Class: SELV
  - EMC Immunity: Industrial Levels
  - EMC Emissions: Industrial Levels
Portable Hub Unit:
- Hub Unit Indicators:
  - System Power: 1x Green LED
  - UltraBus Power: 1x Green LED
  - Monitor Health: 1x Green LED
  - Alarm, SCADA Outputs 1-3: 4x Red LED
- EMC/SAFETY:
  - EMC Class: 1
  - EMC Immunity: Industrial Levels
  - EMC Emissions: Industrial Levels
Please feel free to contact for detailed specifications, accessories, software and options.