The Megger TTR100-1 is an automatic handheld, battery-operated transformer turns ratio test set used to measure the turns ratio, excitation current, phase displacement, dc resistance, and polarity of windings in single- and three-phase distribution transformers (tested phase by phase), potential & current transformers, and tapped transformers
| Battery Life | Up to 15 hours of field operation |
| Charger Input Voltage | 100-250 V ac, 50/60 Hz +-2 Hz Unit can be operated while charging. Charging time is approximately thr |
| Current (rms) Accuracy | +-5% rdg +-0.5 mA |
| Dimensions | 9.5 H x 4.5 W x 1.875 D in. (241 H x 115 W x 48 D mm) |
| Display full graphics | LCD module, wide temperature range, 128 x 64 dots (21 characters by 8 lines) |
| Excitation Current Range | 0 to 100 mA, 4-digit resolution |
| Excitation Voltage | 8 V rms for testing distribution or power transformers, and PTs; 1.5 V ac RMS, or 8 V ac RMS for tes |
| Measurement Method | ANSI/IEEE C57.12.90 and IEC 600076.1 (2000) |
| Measuring Time | 8 to 20 seconds for a single-phase distribution transformer |
| Operating Temperature | -4 Deg F to 131 Deg F (-20 Degree Celsius to 55 Degree Celsius) |
| Phase Deviation Accuracy | +-5 minutes |
| Phase Deviation Range | +90 Deg1 decimal point for the minutes display,2 decimal points for the degree display, or for the c |
| Safety/EMC/Vibration | Meets the requirements of IEC-1010-1, CE and ASTM D999.75 |
| Storage temperature | -58 Deg F to 140 Deg F (-50 Degree Celsius to 60 Degree Celsius) |
| Test Frequency | 55 Hz internally generated providing a universal 50/60 Hz test set |
| Transformer Polarity | Additive or Subtractive |
| Transformer Vector Group | 1PH0 or 1PH6 |
| Turns Ratio Range | 8 V ac: 0.8 to 20,000, 5 digit resolution (for transformers and PT testing) |
| Type of Power | Rechargeable NiMH battery pack, 3.6 V dc, 3800 mAh |
| Winding Resistance Range | 0 to 2000 ohm, 4 digit resolution |
| Weight | Approx. 3.3 lbs (1.5 kg), instrument only, without leads |
| |
