Megger TTR20-1

| Attribute | Value |
|---|---|
| Turns Ratio Range | 0.8 to 1300 |
| Turns Ratio Accuracy | ±0.1% |
| Test Voltage | 8 V AC |
| Number of Phases | Single Phase |
| Excitation Current Measurement Range | 0.1 mA to 600 mA |
| Display | Graphic LCD with backlight |
| Power Supply | Internal rechargeable battery or AC adapter (100–240 V AC) |
| Operating Temperature | -10°C to 50°C (14°F to 122°F) |
| Weight | Approximately 3.5 kg (7.7 lbs) |
| Standards Compliance | IEEE C57.12.90, IEC 60076 |
Megger TTR20-1 Options:
- TTR20-1 - 2007-713-12 - Combined test leads, "X/H" winding, 3.6 m (12 ft)
- TTR20-1 - 2007-713-20 - Combined test leads, "X/H" winding, 6 m (20 ft)
- TTR20-1 - 2007-713-33 - Combined test leads, "X/H" winding, 10 m (33 ft)
- TTR20-1 - 1012-180 - Cable bag - backpack
| Model | TTR20-1 |
|---|
The Megger TTR20-1 is a handheld, battery-powered transformer turns ratio tester that measures turns ratio, excitation current, and polarity of windings. It supports single- and three-phase transformers, CTs, PTs, and tapped transformers. Rugged yet lightweight at only 870 g, it features a high-impact case and a high-contrast backlit LCD for reliable operation in any lighting condition.
Designed for substations, transformer manufacturing, and meter shops, the TTR20-1 delivers fast and accurate measurements up to a 10,000:1 ratio. With simple one-button operation and no software required, it ensures efficient testing even in challenging environments.
Testwall can supply the used Megger TTR20-1, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Megger TTR20-1.




