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Metrel MI3280 Digital Transformer Analyser

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  • Measures turn ratio, phase deviation, excitation current and winding resistance
  • Suitable for voltage and current, single- and three-phase transformers
  • Internal memory is downloadable via USB or Bluetooth connectivity

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  • Description

    Metrel MI3280 Digital Transformer Analyser

    The Metrel MI3280 Digital Transformer Analyser is a specialist instrument that allows the user to carry out advanced analysis on transformers, including current, voltage, three-phase and single-phase transformers. It can measure turn ratio on single- and three-phase transformers; phase deviation between high voltage and low voltage winding; excitation current; and winding resistance on single and three phase transformers up to 1.6MVA.

    A test sequences can be initiated using the Metrel MI3280 which makes it suitable for advanced users and it is also possible to carry out visual tests. Operating the analyser is surprisingly easy and requires no specific product training as the onboard memories are extremely intuitive and help screens are saved in the memory and can be consulted whenever needed. They can be accessed via the vibrant 3.4” colour touchscreen, which also clearly displays test results and related information, or by using the navigation buttons.

    The Metrel MI3280 has a sizeable internal memory that can save a large number of test results. The transformer analyser has an integrated USB port and also transfers data via wireless Bluetooth connectivity. A Metrel ES Manager software package is provided with the transformer analyser as standard and this facilitates analysis, reporting and data transfer.

    As an industrial-grade instrument, the Metrel MI3280 benefits from an IP54 ingress protection rating when the case is open and an IP65 ingress protection rating when the case is closed. Supplied accessories include a four-wire test set, USB cable, mains cable, carry case and calibration certificate.

    Metrel part number: MI 3280

    Key Features

    • Suitable for voltage and current, single-phase and three-phase transformers
    • Turn ratio measurement on single- and three-phase transformers
    • Measures phase deviation between high- and low-voltage winding
    • Capable of measuring excitation current
    • Measures winding resistance on transformers up to 1.6MVA
    • Advanced auto test sequences
    • 3.4” LCD colour touchscreen
    • Intuitive operation with built-in help screens
    • Internal memory with USB and Bluetooth connectivity
    • IP65 ingress protection rating (case closed)
  • Specification

    Turn Ratio r, rA, rB, rC

    Excitation Voltage 80V

    • Measuring ranges: 0.8000 to 9.9999; 10.000 to 99.999; 100.00 to 999.99; 1000.0 to 1999.9; 2000.0 to 3999.9; 4000.0 to 8000.0
    • Resolutions: 0.0001; 0.001; 0.01; 0.1; 0.1; 0.1
    • Accuracy: ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.5% + 2 digits); ±(0.5% + 2 digits); ±(1% + 2 digits)

    Excitation Voltage 40V

    • Measuring ranges: 0.8000 to 9.9999; 10.000 to 99.999; 100.00 to 999.99; 1000.0 to 1999.9; 2000.0 to 3999.9; 4000.0 to 8000.0
    • Resolutions: 0.0001; 0.001; 0.01; 0.01; 0.1; 0.1
    • Accuracy: ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.5% + 2 digits); ±(0.5% + 2 digits); n/a

    Excitation Voltage 10V

    • Measuring ranges: 0.8000 to 9.9999; 10.000 to 99.999; 100.00 to 999.99; 1000.0 to 8000.0
    • Resolutions: 0.0001; 0.001; 0.01; 0.1
    • Accuracy: ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.5% + 2 digits); n/a

    Excitation Voltage 5V

    • Measuring ranges: 0.8000 to 9.9999; 10.000 to 99.999; 100.00 to 999.99; 1000.0 to 8000.0
    • Resolutions: 0.0001; 0.001; 0.01; 0.1
    • Accuracy: ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.5% + 2 digits); n/a

    Excitation Voltage 1V

    • Measuring ranges: 0.8000 to 9.9999; 10.000 to 99.999; 100.00 to 999.99; 1000.0 to 8000.0
    • Resolutions: 0.0001; 0.001; 0.01; 0.1
    • Accuracy: ±(0.2% + 2 digits); ±(0.2% + 2 digits); ±(0.5% + 2 digits); n/a

    Excitation Current i, iA, iB, iC

    • Test frequency: 55Hz, 65Hz, 70Hz
    • Measuring ranges: 0.10mA to 9.99mA; 10.0mA to 99.9mA; 100mA to 999mA; 1.00A to 1.10A
    • Resolutions: 0.01mA; 0.1mA; 1mA; 0.01A
    • Accuracy: ±(2% + 0.20mA); ±(2% + 2 digits); ±(2% + 2 digits); ±(2% + 2 digits)

    Phase Deviation fi, jA, jB, jC

    • Test frequency: 55Hz, 65Hz, 70Hz
    • Measuring range: -180˚ to 180˚
    • Resolution: 0.01˚
    • Accuracy: ±(0.05˚)

    Winding Resistance R, RA, RB, RC

    • Test current: 10mA to 1000mA
    • Measuring ranges: 1.0mΩ to 999.9mΩ; 1.000Ω to 9.999Ω; 10.00Ω to 99.99Ω; 100.0Ω to 999.9Ω
    • Resolutions: 0.1mΩ; 0.001Ω; 0.01Ω; 0.1Ω
    • Accuracy: ±(2% + 3 digits); ±(2% + 2 digits); ±(2% + 2 digits); ±(2% + 2 digits)

    General

    • Battery power supply: 14.4V DC (4.4Hh Li-ion)
    • Battery charging time: Typical 4.5h (deep discharge)
    • Mains power supply: 90 to 260 VAC, 45Hz to 65Hz, 100VA (300V Cat II)
    • Protection classification: Reinforced insulation
    • Measuring category: 50V Cat IV
    • Pollution degree: 2
    • Degree of protection: IP65 (case closed); IP54 (case open)
    • Dimensions: 360mm x 160mm x 330mm
    • Weight: 8.8kg
  • Supplied Accessories

    • Metrel MI3280 Digital Transformer Analyser
    • Four-wire test lead with Kelvin clips, 2.5m 4pcs
    • USB cable
    • Mains cable
    • Soft carrying bag
    • Metrel ES Manager BASIC Licence (downloadable for free from Metrel web server)
    • Instruction manual for Metrel MI3280
    • Calibration certificate
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