The DTR® Model 8510 is an easy-to-use portable digital transformer turns ratiometer designed for on-site testing of power, potential and current transformers
The DTR® Model 8510 is an easy-to-use portable digital transformer turns ratiometer designed for on-site testing of power, potential and current transformers. When connected to a non-energized transformer, the DTR® Model 8510 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. 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.
| Weight | 15000 g |
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| VT/PT Ratio Range | Auto-Ranging: 0.8000:1 to 8000.0:1 |
| VT/PT Accuracy | 0.8000 to 9.9999: ±0.2% of Reading 10.000 to 999.99: ±0.1% of Reading 1000.0 to 4999.9: ±0.2% of Reading 5000.0 to 8000.0: ±0.25% of Reading |
| CT Ratio Range | Auto-Ranging: 0.8000 to 1000.0 |
| CT Accuracy | ±0.5% of Reading |
| Excitation Signal | VT/PT Mode: 32Vrms max CT Mode: Auto Level 0 to 1A, 0.1 to 4.5Vrms |
| Excitation Current Display | Range: 0 to 1000mA Accuracy: ±(2% of Reading +2mA) |
| Excitation Frequency | 70Hz |
| 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 | Up to 10,000 complete measurements |
| Power Source | Two rechargeable 12V NiMH batteries (included) |
| Battery Life | Up to 10 hours of continuous operation |
| Low Battery Indication | LED and LCD |
| External Charger | 90 to 240V, 50/60Hz (smart charger) |
| Charging Time | <4 hours |
| Measurement Method | In accordance with ANSI/IEEE Std. C57.12.90-2006 |
| Software | DataView analysis software included |
| Dimensions | 10.70 x 9.76 x 5.12” (272 x 248 x 130mm) |
| Weight | 8.1 lbs (3.7kg) |
| Operation Temperature | 14° to 122°F (-10° to 50°C) |
| Storage Temperature | -4° to 140°F (-20° to 60°C) |
| Index of Protection | IP40 (lid open), IP53 (lid closed) |
| Double Insulated | Yes |
| CE Approved | Yes |
| Safety Compliance | IEC 61010-1 (1995-A2) 50V CAT IV Pollution 2 |
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