Description
The Megger TTR310 measures transformer turns ratio, excitation current and phase deviation for commissioning and maintenance checks.
An integrated text-based display and keypad support standalone setup, stored results and comparison with nameplate ratios. Automatic phase selection reduces reconnection work on three-phase transformers. RS-232 transfer supports external reporting; an external printer is optional. This page covers the original TTR310 model.
Key Specifications
- Turns-ratio range: 0.8:1–45,000:1, excitation dependent
- Excitation voltage: 8, 40 or 80 V AC
- Ratio accuracy example: ±0.1% from 0.8:1 to 2,000:1
- Excitation-current measurement: 0–500 mA
- Interface: Text LCD and keypad
- Data transfer: RS-232
Request a rental or sales quote to confirm availability, configuration and included accessories.





