Transformer Turns Ratio Meter
–TR1 / TR1P
Provenexe Enterprises
www.provenexe.com
Product Overview
The TR1 / TR1P Transformer Turns Ratio Meter is a portable, battery-operated instrument designed for accurate testing of single-phase power transformers and current transformers. The TR1P model includes a built-in thermal printer for instant test reports.
Key Features
- Fully automatic operation
- Portable and rugged design
- Rechargeable lithium-ion battery
- Reverse polarity and continuity test
- CT test current up to 1 A
- Stores 50 test results
- Memory for 16 transformers
- Pass / Fail evaluation
- RS-232 communication interface
- Firmware upgrade via PC
- Built-in printer (TR1P only)
- Over 1,000 tests per charge
- 5-year warranty
Technical Specifications
General Specifications
| Parameter |
Specification |
| Model |
TR1 / TR1P |
| Measurement Type |
Single-phase PT & CT |
| Turns Ratio Range |
0.8 – 4,000 |
| Operation Mode |
Fully automatic |
| Display |
Graphic LCD with backlight |
| Data Storage |
50 test results |
| Transformer Memory |
16 transformers |
| Interface |
RS-232 |
| Printer |
Built-in (TR1P only) |
| Warranty |
5 Years |
Turns Ratio Accuracy
| Range |
PT Mode (40 V) |
CT Mode (1–5 V) |
Resolution |
| 0.8 – 100 |
±0.08% Rdg ±1 LSD |
±0.08% Rdg ±1 LSD |
5 digits |
| 101 – 4,000 |
±0.08% Rdg ±1 LSD |
— |
5 digits |
Current Measurement Accuracy
| Mode |
Range |
Accuracy |
Resolution |
| PT Mode |
0 – 0.1 A |
±1 mA |
0.1 mA |
| CT Mode |
0 – 1 A |
±1 mA |
0.1 mA |
Electrical & Environmental Specifications
| Parameter |
Specification |
| PT Output Voltage |
40 V / 10 V / 5 V / 1 V |
| CT Output Voltage |
1 – 5 VAC (auto-ranging) |
| Power Supply |
85–264 VAC, 47–63 Hz |
| Optional Supply |
12 V DC |
| Battery |
Li-ion 16.4 V / 1.6 Ah |
| Operating Temperature |
-10°C to +60°C |
| Storage Temperature |
-20°C to +70°C |
Physical Specifications
| Parameter |
Specification |
| Dimensions (L × W × H) |
270 × 245 × 125 mm |
| Weight |
3.2 kg |
Applications
- Transformer turns ratio testing
- Polarity and phase verification
- Current transformer (CT) testing
- Power transformer (PT) testing
- Substation commissioning
- Field maintenance and diagnostics
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