User manual for the fully automatic test transformer operating box produced by Wuhan Electric Power Testing Equipment.
This manual provides a complete overview of the fully automatic test transformer operating box, including its physical layout, panel functions, and wiring diagrams. It describes the main features such as a large back‑lit LCD, touch‑key operation, and built‑in protection outputs.
The document also details parameter settings, system work states, safety precautions, troubleshooting steps, maintenance procedures, and transport/storage guidelines to ensure reliable and safe operation in power‑testing environments. This manual is written in Chinese.
| Measurement range | 0 – 9999 |
|---|---|
| Measurement accuracy | ±0.5% FS |
| Power supply voltage | AC 220 V ± 15% , 50 Hz ± 2 Hz |
| Setting method | Panel touch‑key digital setting |
Press the function (SET) key, then use the keypad to modify the over‑voltage setting as shown in the on‑screen prompts.
The device requires an AC 220 V supply with a tolerance of ±15% at 50 Hz ± 2 Hz.
Disconnect the power, remove the fuse cover with a small screwdriver, and replace it with a fuse of the same model.
Ensure that the test enclosure is reliably grounded before performing any test.