Metrel MI 3280 DT Analyser

The Metrel MI 3280 DT Analyser (Digital Transformer) is a versatile, portable battery (Li-ion) powered test instrument designed for diagnosing key parameters of single-phase and three-phase transformers. Engineered with practicality in mind, it provides robust IP protection—IP65 (when the case is closed) and IP54 (when the case is open).

Making it suitable for challenging environments. This instrument features a user-friendly 4.3” (10.9 cm) colour LCD with touchscreen, ensuring ease of operation and eliminating the need for advanced training, aside from reviewing the instruction manual. Test results can be stored within the device, and the included PC software allows seamless transfer for comprehensive analysis and reporting.

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• Turn ratio measurement for single-phase and three-phase transformers.
• Phase deviation and excitation current measurements ensure thorough transformer diagnostics.
• Winding resistance measurement capabilities improve maintenance accuracy.
• Auto Sequences® and Visual Tests for streamlined and guided diagnostics.
• Memory Organiser to manage stored test results efficiently.

• Turn Ratio Measurement: For single-phase and three-phase transformers
• Phase Deviation Range: -180.00° to 180.00°
• Excitation Current: 0.1 mA to 1.1 A
• Winding Resistance Measurement: For single-phase and three-phase transformers
• Open-Terminal Test Voltage Options: 1 V, 5 V, 10 V, 40 V, or 80 Vac
• Test Voltage Frequency: 55 Hz, 65 Hz, or 70 Hz
• Short-Circuit Test Current: > 250 mA @ 55 Hz, 80 Vac, > 1 A @ 55 Hz, 10 Vac
• Test Voltage Shape: Sine wave
• Measurement Time (Per Phase): 8.5 seconds
• Limit Range (Turn Ratio): 0.8 to 8000
• Limit Range (Turn Ratio Deviation): -100.0% to 100.0%
• Automatic Range Selection: Yes
• Automatic Excitation Voltage Selection: No

• Efficiency in Diagnostics: Allows quick and accurate measurements essential for transformer evaluation.
• Rugged Design: High IP rating ensures reliability in real-world applications, even in harsh conditions.
• Ease of Use: Simple operation interface with touchscreen minimises learning requirements.
• Data Management: Built-in memory for test data storage and PC software for analysis and reporting.
• Comprehensive Functionality: Conduct multiple measurements with a single device, reducing the need for additional equipment.

The MI 3280 Digital Transformer Analyser is ideal for professionals in the power industry, such as electricians, engineers, and maintenance directors. It can be employed in the following scenarios:

• Testing and maintaining transformers during scheduled maintenance or decommissioning.
• Diagnosing turn ratio, winding resistance, phase deviation, and excitation current for transformers involved in power grid projects.
• Ensuring reliable transformer function in both rural and remote locations, where efficiency and portability are critical.

This advanced analyser is an indispensable tool for power professionals aiming to meet their project needs with precision and reliability.