When connected to a non-energized transformer, this digital transformer ratiometer accurately measures primary to secondary turns ratio, while simultaneously displaying polarity and excitation current. The DTR is fully automatic and uses an ANSI/IEEE compliant test method.
When connected to a non-energized transformer, this digital transformer ratiometer accurately measures primary to secondary turns ratio, while simultaneously displaying polarity and excitation current. The DTR is fully automatic and uses an ANSI/IEEE compliant test method.
The AEMC DTR 8510 Digital Transformer Ratiometer is a portable digital transformer ratiometer designed for on-site testing of power, potential and current transformers. No user calibration, range selection, hand cranking or tedious balancing is required. At each measurement, the DTR automatically self-calibrates and checks for open windings/connections/circuit breakers, short circuits (excess excitation current), incorrect test lead placement, and reverse polarity. Measurements are displayed quickly and accurately.
Features
Applications
VT/PT Ratio Range | Auto-Ranging 0.8000:1 to 8000:1 |
VT/PT Accuracy* | Ratio 0.8000 to 9.9999: ±0.2% of Reading Ratio 10.000 to 999.99: ±0.1% of Reading Ratio 1000.0 to 4999.9: ±0.2% of Reading Ratio 5000.0 to 8000.0: ±0.50% of Reading |
CT Ratio Range | Auto-Ranging 0.8000 to 1000.0 |
CT Accuracy* | Ratio 0.8000 to 1000.0: ±0.5% of Reading |
Excitation Signal | VT/PT Mode: 32 Vrms maximum CT Mode: 0 to 1A Auto Level, 0.1 to 5 Vrms max. |
Excitation Current Display | Range: 0 to 1000 mA Accuracy: ±2% of Reading + 2mA |
Excitation Frequency | 70 Hz |
Measurement Method | In accordance with ANSI/IEEE C57.12.90-2006 |
Display | LCD 16 character, 2 line, large format, LED backlight, day/night visible |
Languages Supported | English, Spanish, French, Italian, German, Portuguese |
Communication | Optically isolated USB 2.0 |
Data Storage | Stores up to 10,000 complete measurements |
*73.4°F ±9°F (23°C ± 5°C), 50 to 70% RH, full battery charge, no external fields or noise. |
VT/PT Ratio Range | Auto-Ranging 0.8000:1 to 8000:1 |
VT/PT Accuracy* | Ratio 0.8000 to 9.9999: ±0.2% of Reading Ratio 10.000 to 999.99: ±0.1% of Reading Ratio 1000.0 to 4999.9: ±0.2% of Reading Ratio 5000.0 to 8000.0: ±0.50% of Reading |
CT Ratio Range | Auto-Ranging 0.8000 to 1000.0 |
CT Accuracy* | Ratio 0.8000 to 1000.0: ±0.5% of Reading |
Excitation Signal | VT/PT Mode: 32 Vrms maximum CT Mode: 0 to 1A Auto Level, 0.1 to 5 Vrms max. |
Excitation Current Display | Range: 0 to 1000 mA Accuracy: ±2% of Reading + 2mA |
Excitation Frequency | 70 Hz |
Measurement Method | In accordance with ANSI/IEEE C57.12.90-2006 |
Display | LCD 16 character, 2 line, large format, LED backlight, day/night visible |
Languages Supported | English, Spanish, French, Italian, German, Portuguese |
Communication | Optically isolated USB 2.0 |
Data Storage | Stores up to 10,000 complete measurements |
*73.4°F ±9°F (23°C ± 5°C), 50 to 70% RH, full battery charge, no external fields or noise. |