Product Introduction
The CT PT polarity Tester delivers automated, laboratory-grade verification of protection-class (P-class) and metering-class CTs/PTs in field environments, featuring single-unit operation (zero external accessories), auto-knee-point detection, 5%/10% error curve generation, and compliant reporting per GB 20840.3-2013/IEC standards. Its ≤22kg portable design integrates a thermal printer for instant on-site reports, 3,000+ battery-backed test records, and one-click USB Word report generation, slashing commissioning time by 70% while ensuring utility-grade accuracy.
Product Features
1. Support CT and PT detection
2. Comply with the requirements of GB 20840.3-2013, GB 20840.2-2014 and other regulations
3. All testing projects can be completed by one machine without external auxiliary equipment
4. Having your own mini fast printer, you can directly print test results on site
5. Adopting intelligent controller, easy to operate
6. Large screen LCD display, graphical display interface
7. CT/PT (excitation) inflection point value is automatically given according to the program
8. Automatically provide error curves of 5% and 10%
9. Can save 3000 sets of test data, will not be lost after power failure
10. Supports saving data on a USB flash drive, which can be read through a standard PC and generate WORD reports
11. Compact structure, light weight ≤ 22kg, very suitable for on-site testing
Technical Parameters
The main parameters
| Item | parameter | |
| Working power supply | AC220V±10% 、50Hz | |
| Device output | 0 ~ 2500V (Current Max set 20A) | |
| High current output | 0～1000A | |
| Excitation measurement accuracy | ≤0.5%(0.3%* reading +0.2%* range) | |
| CT ratio measurement | The scope of | ≤5000A/1A(25000A/5A) |
| precision | ≤0.5% | |
| PT ratio measurement | The scope of | 5~220kV |
| precision | ≤0.5% | |
| work environment | temperature | －10℃ ～ 40℃ |
| humidity | ≤90% | |
| altitude | ≤1000m | |
| size | 410mm × 260mm × 340mm | |
| weight | ≤25kg | |
