The Transformer Low-Voltage Short-Circuit Impedance Tester is a high-precision diagnostic tool designed for factory delivery, major overhauls, pre-tests, and handover testing of power transformers (single-phase or three-phase). Leveraging advanced single-chip microcomputer technology and synchronous AC sampling, it delivers reliable and accurate impedance measurements.
| Parameter | Value |
|---|---|
| Voltage (Auto Range) | 15–1000V ± (reading × 0.2% + 3 digits) |
| Current (Auto Range) | 0.1A to 100A ± (reading × 0.2% + 3 digits) |
| Power | COSΦ > 0.15 ± (reading × 0.5% + 3 digits) |
| Frequency | 45–65 Hz, Accuracy: ±0.1% |
| Short-circuit Impedance | 0 to 100%, Accuracy: ±0.5% |
| Repeatability Stability | < 0.2% |
| Display | 5 digits |
| Ambient Temperature | -10°C to 40°C |
| Relative Humidity | ≤ 85% RH |
| Working Power Supply | AC 220V ± 10%, 50Hz ± 1Hz |
| Dimensions | 380 × 260 × 120 mm |
| Weight | 4.5 kg (excluding test leads) |
