Megger IDAX300 and IDAX350 Insulation Diagnostic Analyser

In short, DFR is the measurement of capacitance and losses (dissipation factor (tanδ) or power factor) over multiple frequencies. The measured DFR curve is dependent on insulation geometry, moisture, oil conductivity and temperature and through advanced fitting to a reference material model moisture content, predominantly in solid insulation, oil conductivity at 25°C reference temperature and tanδ at 20°C reference temperature can be calculated. In the calculations ITC (Individual Temperature Correction), another important Megger innovation is used to translate test data from the test object temperature to the reference temperatures. It the latest release, the IDAX SW incorporates a new ITC corrected frequency sweep specifically designed for assessment of instrument transformers and bushings. IDAX is exceedingly easy to use with an automated test flow and presentation of results in an easy to understand “traffic light” manner.

Key features

• State-of-the-art measurement of moisture content, tanδ and oil conductivity using DFR (Dielectric Frequency Response)
• Easy-to-use: Software with automated measurement flow and analysis of test results
• “Traffic light” interpretation of test results
• Dedicated test procedures for power transformers, bushings and current transformers
• Automated individual temperature correction (ITC) for accurate comparison with reference data/tests
• Reliable measurements even in high-interference environments
• Interfaces to high voltage amplifiers
• Versions with or without on-board computer