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.
คุณสมบัติของสินค้า
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
พารามิเตอร์ทางเทคนิค
The main parameters
| Item | พารามิเตอร์ | |
| แหล่งจ่ายไฟทำงาน | AC220V±10% 、50Hz | |
| Device output | 0 ~ 2500V (Current Max set 20A) | |
| กระแสไฟขาออกสูง | 0～1000A | |
| ความแม่นยำในการวัดการกระตุ้น | ≤0.5%(0.3%* reading +0.2%* range) | |
| อัตราส่วนซีที การวัด | The scope of | ≤5000A/1A(25000A/5A) |
| ความแม่นยำ | ≤0.5% | |
| PT ratio การวัด | The scope of | 5~220kV |
| ความแม่นยำ | ≤0.5% | |
| work environment | อุณหภูมิ | －10℃ ～ 40℃ |
| ความชื้น | ≤90% | |
| ระดับความสูง | ≤1000m | |
| ขนาด | 410 มม. × 260 มม. × 340 มม | |
| น้ำหนัก | ≤25kg | |
