Features and Advantages
1. The test subjects are AC sensors that comply with the *Technical Specifications for 10kV and 20kV AC Sensors in Distribution Networks (T/ZDG018-2018)*.
2. The system enables the testing of ratio error and phase angle error for AC sensors.
3. It displays relevant information—such as instantaneous primary voltage, current, and frequency—to facilitate a comprehensive assessment of the parameters under calibration.
4. It provides real-time waveform visualization of the sensor under calibration, allowing for the monitoring of waveform distortion in the instrument transformer under inspection.
5. It facilitates the recording of errors at specific verification points; a single click generates a report, saving the recorded error data for convenient archiving or subsequent error analysis.
6. Featuring a large-screen display with an integrated touchscreen interface and fully Chinese-language operational prompts, the device offers user-friendly operation. It displays measurement data in real-time and performs statistical analysis. Furthermore, the product boasts strong adaptability and scalability, supporting future software upgrades.
Parameter
- Calibrator Technical Specifications
- AC Analog Small Signal Output (Optional)
- Other Specifications
| Calibrator Technical Specifications | |
| Calibrator Accuracy Class | Class 0.05 (Ratio error better than 0.05%; Phase angle error better than 2′) |
| Standard Voltage Input Range | 0–120 V |
| Standard Voltage Measurement Range | 20–120 V (0.05% RD); 1–20 V (0.1% RD) |
| Standard Current Input Range | 0–6 A |
| Standard Current Input Ranges (Selectable) | 50 mA, 100 mA, 1 A, 5 A |
| Standard Current Measurement Range | 10 mA – 6 A (0.05% RD) |
| Input Range for Small Signals Under Test | 0–8.5 V (0–7 V for certain older equipment models) |
| Input Impedance for Small Signals Under Test | 200 MΩ |
| AC Analog Small Signal Output (Optional) | |
| Output Range | 0–7 V |
| Output Accuracy | 0.05% RD (200 mV – 7 V) |
| Other Specifications | |
| Power Supply | AC 220 V ±5%, 50 Hz |
| Total Power Consumption | Approx. 30 VA |
| Operating Temperature | -10°C – 50°C |
| Relative Humidity | ≤85% (Non-condensing; free of corrosive gases) |
| Dimensions | 449 mm (L) × 271 mm (W) × 182 mm (H) |
| Total Unit Weight | 8.9 kg |
