Product Introduction
CT PT Characteristic Tester is a portable instrument designed for on-site verification of Protection-class (P-class) Current Transformers (CTs) and Voltage Transformers (VTs/PTs). It performs key tests including excitation characteristic (knee-point, saturation), turns/ratio testing, polarity verification, core demagnetization (degaussing), 5% and 10% error curve derivation, secondary circuit continuity and burden measurement, secondary winding insulation withstand (power frequency AC), and secondary load testing. Equipped with an integrated LCD display, a built-in micro printer for instant field reports, and USB data export capabilities, it offers comprehensive functionality with streamlined operation for efficient field use.
Tính năng sản phẩm
Thông số sản phẩm
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. Resistance Test |
| 6. FAST TEST | 6. Calculation of Knee Point Value |
| 7. Withstand Test of Power Frequency Alternating Current | 7. Actual Secondary Load Test |
| 8. Automatic Calculation of Excitation Knee Point Value | |
| 9. Actual Secondary Load Test | |
| 10. Resistance Test |
Bảng thông số kỹ thuật
| Các thông số kỹ thuật chính | |
| Operational Power Supply | AC220V±20V, 50～60Hz |
| Equipment Power Supply Output Waveform | Sóng hình sin |
| Single Machine Output Voltage of Excitation Characteristic | 0~1200V |
| Excitation 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 |
| Load Range | 5 ~ 500VA |
| Resistance measurement range | 0,1 ~ 300Ω |
| Lỗi | ≤0.5%(0.3%*Reading+0.2%*Range) |
| Nhiệt độ hoạt động | -10℃~+40℃ |
| Độ ẩm tương đối | <90RH% |
| Độ cao | ≤1000m |
| Overall Dimension(Length*Width*Height) | 450*350*350(mm) |
| Cân nặng | ≤28Kg |
