Product Introduction
This device is mainly used for on-site testing of P-level CT and PT. CT PT Tester adopts LCD display, comes with a small printer, and supports on-site printing; Support the use of USB flash drives to dump data, with simple and convenient operation.
Product Features & Advantages
1. Standards Compliance
Meets GB 20840.3-2013 & GB 20840.2-2014 requirements for professional CT/PT verification.
2. Complete Testing Solution
Performs all test items independently without external devices - truly all-in-one functionality.
3. Instant Documentation
Built-in high-speed micro printer delivers immediate hardcopy results at test sites.
4. Intelligent Control
User-friendly operation via smart controller with intuitive graphical interface.
5. Visual Display
Large LCD screen clearly presents test data and graphical results.
6. Automatic Calculations
Precisely determines CT/PT excitation knee points per regulatory standards.
7. Error Curve Generation
Automatically plots both 5% and 10% error curves for compliance analysis.
8. Robust Data Storage
Retains 3,000 test records with power-loss protection.
9. Data Portability
USB interface enables easy data transfer and professional Word report generation.
10. Field-Ready Design
Compact form factor (
11. Comprehensive Protection
Features multiple safeguards for equipment and operator safety.
Product Parameters
Function Table
| I. Current Transformer (CT) | II. Voltage Transformer (PT) |
| 1. Magnetization Curve | 1. Excitation Characteristic Test |
| 2. Transformation Ratio Test | 2. Transformation Ratio Test |
| 3. Polarity | 3. Polarity |
| 4. 5％ and 10％ error curve | 4. Withstand Test of Power Frequency |
| 5. Current Injecting | 5. Degauss |
| 6. Degauss | 6. Calculation of Knee Point Value |
| 7. Withstand Test of Power Frequency Alternating Current | |
| 8. Automatic Calculation of Excitation Knee Point Value |
| Major Technical Parameters | |
| Operational Power Supply | AC220V±20V, 50～60Hz |
| Equipment Power Supply Output Waveform | Sine Wave |
| Single Machine Output Voltage of Excitation Characteristic | 0~1200V |
| Excitation Output Current Set | 0~20A |
| Single Machine Output Current of Transformation Ratio Test | 0~1000A |
| CT ratio measurement range | 5~25000A/5A(5000A/1A) |
| PT ratio measurement range | 1～500KV |
| Error | ≤0.5%(0.2%*Reading+0.3%*Range) |
| Operating Temperature | -10℃~+40℃ |
| Relative Humidity | |
| Altitude | ≤1000m |
| Overall Dimension(Length*Width*Height) | 450*280*260(mm) |
| Weight | ≤30Kg |
