產品介紹∣數位變壓器診斷測試分析儀

可攜式，使用鋰離子電池電源操作，專用於診斷單相/三相變壓器匝比、相位差、激磁電流與繞組電阻。
具高程度防護等級：IP65（關閉上蓋）及IP54防護等級（打開上蓋），適用於惡劣的環境。
操作簡單直白，使用者無需特殊訓練，並提供自動測試順序模式，以供進階使用。
符合標準：
- 功能性：C57.12.70、IEC 60076-1。
- 電磁相容性：EN 61326
- 安全性：EN 61010-1、EN 61010-2-030、EN 61010-2-033、EN 61010–031。
- 鋰離子電池包：IEC 62133。
測量功能：
- 單相/三相變壓器匝比測量。
- 高壓及低壓繞組間的相位差測量。
- 激磁電流。
- 單相/三相變壓器繞組電阻測量（電力變壓器達1,6 MVA）。
主要特點：
- 配備3.4吋彩色觸控顯示幕，提供清楚易讀的結果及所有相關的參數。
- 測試結果可儲存在儀器或使用標準配備的電腦軟體，將測量結果轉移至電腦，以進行分析或印出。
- 內建輔助說明，可在現場就地參考。
- 自動測試順序。
- 標準配備內建充電器與可充電電池。
- 可透過內建的藍芽，與電腦、平板電腦及智慧型手機進行藍芽通訊。
- 電腦軟體Metrel ES Manager可用於建立測試結構、上傳/下載測試結果、使用自動測試編輯器及建立報告。
應用：
- 單相三相電力變壓器、比壓器、比流器。

匝比測量r、rA、rB、rC：
- 激磁電壓80V（測量範圍，解析度，精度）：
  - 0.8000 ... 9.9999；0.0001；±（0.2% rdg.+ 2位數）。
  - 10.000 ... 99.999；0.001；±（0.2% rdg.+ 2位數）。
  - 100.00 ... 999.99；0.01；±（0.2% rdg.+ 2位數）。
  - 1000.0 ... 1999.9；0.1；±（0.5% rdg.+ 2位數）。
  - 2000.0 ... 3999.9；0.1；±（0.5% rdg. + 2位數）。
  - 4000.0 ... 8000.0；0.1；±（1.0% rdg.+ 2位數）。
- 激磁電壓40V、10V、5V、1V的測量範圍、解析度與精度規格，歡迎洽詢。
激磁電流i、iA、iB、iC：
- 測試頻率55、65或70Hz（測量範圍，解析度，精度）：
  - 0.10mA ... 9.99 mA；0.01mA；±（2 % rdg.+ 0.20mA）。
  - 10.0mA ... 99.9mA；0.1mA；±（2 % rdg. + 2位數）。
  - 100mA ... 999mA；1mA；±（2 % rdg.+ 2位數）。
  - 1.00A ... 1.10A；0.01A；±（2 % rdg.+ 2位數）。
相位差fi、jA、jB、jC：
- 測試頻率55、65或70Hz（測量範圍，解析度，精度）：
  - -180.00 ... 180.00 °；0.01°；±（0.05°）。
詳細規格、配件、軟體及選購，歡迎洽詢。

The MI 3280 Digital Transformer Analyser is a portable, battery (Li-ion) powered test instrument intended for diagnosing of turn ratio, phase deviation, excitation current and winding resistance of single and three phase transformers.
It has an excellent IP protection: IP65 (case closed), IP54 (case open) allowing the use of the instrument in harsh environments.
The operation is straightforward and clear to enable the user to operate the instrument without the need for special training. For advanced users the Auto Sequences and visual tests are available.
Standards applied:
- Functionality: C57.12.70; IEC 60076-1
- Electromagnetic compatibility: EN 61326
- Safety: EN 61010 - 1;EN 61010 - 2 - 030;EN 61010 - 2 - 033; EN 61010 - 031
- Li -ion battery pack: IEC 62133
Measuring functions:
- Turn ratio measurement of single and three phase transformers;
- Phase deviation between high voltage and low voltage winding;
- Excitation current;
- Winding resistance measurement of single and three phase transformers (Power Transformers up to 1,6 MVA).
Key features:
- A 3.4' color LCD display with touch screen offers easy-to-read results and all associated parameters.
- The operation is straightforward and clear to enable the user to operate the instrument without the need for special training.
- Test results can be stored on the instrument. PC software that is supplied as a part of standard set enables transfer of measured results to PC where they can be analysed or printed.
- Built-in help screens for referencing on site.
- Autotest sequences.
- Built-in charger and rechargeable batteries as standard accessory.
- BT communication with PC, Android tablets and smart phones via built-in BT.
- PC SW Metrel ES Manager for creation of test structures and uploading, downloading of test results, autotest editor and report creation.
- High degree of protection IP 65 (case closed), IP 54 (case open).
Applications:
- Three phase and single phase power transformers.
- Voltage transformers.
- Current transformers.

Turn Ratio r, rA, rB, rC:
- Excitation voltage 80V (measuring Range, resolution, accuracy):
  - 0.8000 ... 9.9999, 0.0001, ±(0.2% of reading + 2 digits).
  - 10.000 ... 99.999, 0.001, ±(0.2% of reading + 2 digits)
  - 100.00 ... 999.99, 0.01, ±(0.2% of reading + 2 digits)
  - 1000.0 ... 1999.9, 0.1, ±(0.5% of reading + 2 digits)
  - 2000.0 ... 3999.9, 0.1, ±(0.5% of reading + 2 digits)
  - 4000.0 ... 8000.0, 0.1, ±(1.0% of reading + 2 digits)
- Please feel free to contact for measuring range, resolution and accuracy specifications for excitation voltages 40V, 10V, 5V, 1V.
Excitation Current i, iA, iB, iC:
- Test frequency 55, 65 or 70 Hz (measuring Range, resolution, accuracy):
  - 0.10 mA ... 9.99 mA; 0.01 mA; ±(2 % of reading + 0.20 mA)
  - 10.0 mA ... 99.9 mA; 0.1 mA; ±(2 % of reading + 2 digits)
  - 100 mA ... 999 mA; 1 mA; ±(2 % of reading + 2 digits)
  - 1.00 A ... 1.10 A; 0.01 A; ±(2 % of reading + 2 digits)
Phase Deviation fi, jA, jB, jC:
- Test frequency 55, 65 or 70 Hz (measuring Range, resolution, accuracy):
  - -180.00 ... 180.00 °; 0.01°; ±(0.05°).
Please feel free to contact for detailed specifications, accessories, software and options.