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Catalog excerpts
![MI 3281 WR Analyser EN - 1](https://img.directindustry.com/pdf/repository_di/19903/mi-3281-wr-analyser-en-1050740_1m.jpg)
High Voltage Insulation / Continuity / Earth / Transformer Transformer testing MI 3281 WR Analyser The MI 3281 Winding Resistance Analyser (WR Analyser) is a portable test instrument intended for diagnosing of winding resistance of single and three phase transformers with manual or automatic tap changer test and demagnetization of tested transformer. Selectable test current in range from 10 mA to 20 A. 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. MEASURING FUNCTIONS Available functions and features offered by the WR Analyser: • Winding resistance measurement of single and three phase transformers; • Winding resistance measurement of single and three phase transformers with manual or automatic tap changer test (automatic measurement of all windings); • Demagnetization of single and three phase transformers. KEY FEATURES • Selectable test current up to 20 A. • Automatic winding resistance tests of transformers with On-Load or No-Load Tap Changer. • Automatic discharge after finished measurement. • Built-in help screens for referencing on site. • EMERGENCY STOP switch in case of any emergency situation. • A 4.3'' 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 SW Metrel ES Manager for creation of test structures and uploading, downloading of test results, Auto Sequence® editor and report generation. • Generation and printing of reports (optional) • BT communication with PC, Android tablets and smart phones via built-in BT. • Winding resistances conversion to a desired reference temperature. • Degree of protection IP 65 (case closed), IP 40 (case open). APPLICATION • Three phase and single phase power transformers. • Voltage transformers. • Current transformers. STANDARDS Functionality • C57.12.70 • C57.12.90 Electromagnetic compatibility • EN 61326-1 Safety • EN 61010
Open the catalog to page 1![MI 3281 WR Analyser EN - 2](https://img.directindustry.com/pdf/repository_di/19903/mi-3281-wr-analyser-en-1050740_2m.jpg)
TECHNICAL SPECIFICATION Function 20 A, 15 A, 10 A ORDERING INFORMATION Measuring range 10.0 µΩ … 1999.9 µΩ 2.000 mΩ … 19.999 mΩ 20.00 mΩ … 199.99 mΩ 200.0 mΩ … 1999.9 mΩ 0.100 mΩ … 19.999 mΩ 20.00 mΩ … 199.99 mΩ 200.0 mΩ … 1999.9 mΩ 2.000 Ω … 19.999 Ω 1.00 mΩ … 199.99 mΩ 200.0 mΩ … 1999.9 mΩ 2.000 Ω … 19.999 Ω 20.00 Ω … 199.99 Ω 10.0 mΩ … 1999.9 mΩ 2.000 Ω … 19.999 Ω 20.00 Ω … 199.99 Ω 200.0 Ω … 999.9 Ω 1.000 kΩ … 9.999 kΩ Test current accuracy Open terminal test voltage Max. short-circuit test current Automatic discharge Mains power supply Over-voltage category Pollution degree Degree of...
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