Transformer Testing
Understand transformer condition, verify performance and support confident commissioning decisions.
Explore ServiceMEGGER · MIT525/2 · MIT1025/2 · MIT1525/2
Megger Advanced 5 kV, 10 kV and 15 kV Insulation Resistance Testers
A range of 5 kV, 10 kV and 15 kV insulation resistance testers for transformers, motors, switchgear and cables in environments up to 230 kV, with diagnostic tests for condition assessment and maintenance planning.
Official Megger product photography
High-voltage insulation diagnostics
Testing capabilities
- IR, DAR, PI, DD, SV, ramp and PDC (with software) diagnostic tests
- Measures up to 30 TΩ with ±5 % accuracy up to 1 TΩ at 5 kV, 2 TΩ at 10 kV or 3 TΩ at 15 kV
- Patent-applied RE>Act test mode monitors reabsorption current for accurate measurements and safety
- PI Predictor speeds up testing; internal memory with optional Bluetooth export to PowerDB or CertSuite
- Up to 6 mA noise immunity with high-performance guard terminals
- Three models — MIT525/2, MIT1025/2 and MIT1525/2 — selected by required test voltage
Manufacturer-published capabilities. Available tests depend on the selected configuration and accessories. Confirm suitability, availability and pricing with our technical team.
Technical specifications
| Manufacturer / model | Megger / MIT525/2 (5 kV), MIT1025/2 (10 kV), MIT1525/2 (15 kV) |
| Test voltage | 5 kV, 10 kV or 15 kV with user-defined test voltage; accuracy +4 % / −0 % ±10 V at 1 GΩ load |
| Resistance range | 10 kΩ to 15 TΩ at 5 kV, 20 TΩ at 10 kV, 30 TΩ at 15 kV |
| Accuracy (23 °C) | ±5 % from 1 MΩ to 1 TΩ (5 kV), 2 TΩ (10 kV), 3 TΩ (15 kV); ±20 % beyond |
| Noise immunity | Up to 6 mA noise current with measurement within accuracy specification |
| Diagnostic tests | IR, DAR, PI, DD, SV, ramp, PDC (with software); RE>Act reabsorption current mode |
| Safety | CAT IV 600 V to 3000 m altitude (MIT525/2, MIT1025/2); CAT IV 1000 V (MIT1525/2) |
| Data | Internal result memory; optional Bluetooth export to PowerDB or CertSuite |
| Real-time output | 1 Hz output readings (V, I, R) |
Downloads
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