Ideal for testing power, distribution, and instrument transformers, this handheld turns ratiometer test set performs routine polarity validation of AC voltage and current. Moreover, this ratiometer has an induced voltage of 37.5 V AC and uses pass/fail ratio evaluation, excitation current, and TTR tests for accurate results.
Ideal for testing power, distribution, and instrument transformers, this handheld turns ratiometer test set performs routine polarity validation of AC voltage and current. Moreover, this ratiometer has an induced voltage of 37.5 V AC and uses pass/fail ratio evaluation, excitation current, and TTR tests for accurate results.
Specially designed for single-phase source and measurement, this handheld transformer turns ratiometer uses turns ratio, routine polarity validation, and TTR excitation current testing to locate problems such as defects and failures, requiring minimal input from users. Furthermore, users can organize and export readable results by email, Microsoft Excel export, or an optional USB printer (sold separately).
Minimize training duration with the intuitive full-color Hi bright LCD user interface, rotary knob for function selection, and automatic results storage. Obtain accurate results with the easy-to-follow setup. In addition, when the batteries need recharging, plug them into any standard USB wall charger or connect them to your PC.
Features
Applications
Voltage Maximum | Induced: 37.5 V Output: 45 V AC peak |
Maximum Turns Ratio | 50,000 down |
Maximum Current | 1 A |
Pass/Fail Ratio Evaluation | Yes |
Additive/Subtractive Polarity Validation | Yes |
Excitation Current Measurements | Yes |
Automatic Results Storage | Yes |
Three Phase Measurements | Yes (unguided) |
Self-Check Diagnosis | Yes |
USB Drive Save and Export | Yes |
Output | Voltage: Single phase, 1 to 50 V Current: 0.1 mA to 1 A |
Turns Ratio | Measurement methods: Single phase step up/single phase step down Turns ratio range and accuracy: Step down excitation 25 to 50 V: ±0.05% 0.8 to 1000 ±0.1% 1001 to 2000 ±0.3% 2001 to 15,000 ±1% 15,000+ 1 to 24 V: ±0.1% 0.8 to 1000 ±0.2% 1001 to 2000 ±0.6% 2001 to 15,000 ±2% 15,000+ Step up measurement: 25 to 250 V: ±0.05% 0.8 to 200 (most Power Tx) 1 to 24 V: ±0.1% 0.8 to 200 |
Excitation | Current resolution: 0.1 mA, 0.1 mA to 100 mA/1 mA, 101 mA to 1000 mA Current accuracy: ±1% reading, ±0.1 mA |
Frequency Accuracy | ±1% reading, ±0.1 Hz |
Phase Range | Range: 0 to 360° Accuracy: ±0.05° |
Printer | 2" (51 mm) thermal printer (sold separately), prints all measurement data displayed on GUI |
Display | Full colour 3.5" (88 mm) 320 x 240 pixels Hi-bright LCD screen with 'auto dim' and 'auto off' to preserve battery life |
Case | Heavy duty over-molded case with built in connection for hook strap. Carry case with quick start guide, belt loop hook, and pouches for included lead set and accessories |
Communication/Control Software | USB interface for PC download with custom GUI Software: Microsoft Excel export |
Internal/External Data Storage | Automatic results storage Up to 10 custom vector storage Up to 10,000 sets of single-phase results internal storage Transferable via USB 2.0 drive |
Environmental Conditions | Operating: -4 to 122°F (-20 to 50°C) Storage: -22 to 158°F (-30 to 70°C) Relative humidity: 0 to 90%, non-condensing |
Transformer Testing Standards | IEEE: C57.152-2013 IEC: 60076-1:2011 AS/NZS: 6076 1:2014 CIGRE: 445 2011 GOST: 3484.1-88 |
Regulatory | Safety: IEC 61010-1:2010 + AMD1:2016 EMI/EMC: IEC 61326-1:2012 RoHS2: EN50581 Vibe/shock: MIL-STD -810G Ingress: IP54 |
Power | Auto dim and power off battery saving Type: 6 x IEC LR6 1.5 V alkaline (AA) 6 x IEC HR6 1.2 V NiMH rechargeable (AA) Battery life: 1000 TTR tests on a single charge Storage: 1+ years NiMH, 5+ years alkaline Battery charging: USB-C when set to NiMH batteries, protection against alkaline charging PowerEx PRO NiMH battery charging: 0 to 45°C |
Dimensions | 8.98 x 4.1 x 2.95" (22.8 x 10.5 x 7.5 cm) |
Weight | 2.2 lbs (1 kg) |
Click on a category to view a selection of compatible accessories with the Megger TTRU1-BASIC Handheld Transformer Turns Ratiometer, 37.5 V AC.
Voltage Maximum | Induced: 37.5 V Output: 45 V AC peak |
Maximum Turns Ratio | 50,000 down |
Maximum Current | 1 A |
Pass/Fail Ratio Evaluation | Yes |
Additive/Subtractive Polarity Validation | Yes |
Excitation Current Measurements | Yes |
Automatic Results Storage | Yes |
Three Phase Measurements | Yes (unguided) |
Self-Check Diagnosis | Yes |
USB Drive Save and Export | Yes |
Output | Voltage: Single phase, 1 to 50 V Current: 0.1 mA to 1 A |
Turns Ratio | Measurement methods: Single phase step up/single phase step down Turns ratio range and accuracy: Step down excitation 25 to 50 V: ±0.05% 0.8 to 1000 ±0.1% 1001 to 2000 ±0.3% 2001 to 15,000 ±1% 15,000+ 1 to 24 V: ±0.1% 0.8 to 1000 ±0.2% 1001 to 2000 ±0.6% 2001 to 15,000 ±2% 15,000+ Step up measurement: 25 to 250 V: ±0.05% 0.8 to 200 (most Power Tx) 1 to 24 V: ±0.1% 0.8 to 200 |
Excitation | Current resolution: 0.1 mA, 0.1 mA to 100 mA/1 mA, 101 mA to 1000 mA Current accuracy: ±1% reading, ±0.1 mA |
Frequency Accuracy | ±1% reading, ±0.1 Hz |
Phase Range | Range: 0 to 360° Accuracy: ±0.05° |
Printer | 2" (51 mm) thermal printer (sold separately), prints all measurement data displayed on GUI |
Display | Full colour 3.5" (88 mm) 320 x 240 pixels Hi-bright LCD screen with 'auto dim' and 'auto off' to preserve battery life |
Case | Heavy duty over-molded case with built in connection for hook strap. Carry case with quick start guide, belt loop hook, and pouches for included lead set and accessories |
Communication/Control Software | USB interface for PC download with custom GUI Software: Microsoft Excel export |
Internal/External Data Storage | Automatic results storage Up to 10 custom vector storage Up to 10,000 sets of single-phase results internal storage Transferable via USB 2.0 drive |
Environmental Conditions | Operating: -4 to 122°F (-20 to 50°C) Storage: -22 to 158°F (-30 to 70°C) Relative humidity: 0 to 90%, non-condensing |
Transformer Testing Standards | IEEE: C57.152-2013 IEC: 60076-1:2011 AS/NZS: 6076 1:2014 CIGRE: 445 2011 GOST: 3484.1-88 |
Regulatory | Safety: IEC 61010-1:2010 + AMD1:2016 EMI/EMC: IEC 61326-1:2012 RoHS2: EN50581 Vibe/shock: MIL-STD -810G Ingress: IP54 |
Power | Auto dim and power off battery saving Type: 6 x IEC LR6 1.5 V alkaline (AA) 6 x IEC HR6 1.2 V NiMH rechargeable (AA) Battery life: 1000 TTR tests on a single charge Storage: 1+ years NiMH, 5+ years alkaline Battery charging: USB-C when set to NiMH batteries, protection against alkaline charging PowerEx PRO NiMH battery charging: 0 to 45°C |
Dimensions | 8.98 x 4.1 x 2.95" (22.8 x 10.5 x 7.5 cm) |
Weight | 2.2 lbs (1 kg) |
Click on a category to view a selection of compatible accessories with the Megger TTRU1-BASIC Handheld Transformer Turns Ratiometer, 37.5 V AC.