UHV-321 Transformer Capacity Load No-load Tester
Présentation du produit
This product is specifically designed for capacity measurement, no-load loss testing, and short-circuit loss analysis of distribution power transformers. It also features harmonic analysis functionality, enabling effective assessment of on-site power quality. When testing three-phase transformers, the device automatically verifies wiring correctness and displays a three-phase current-voltage vector diagram. Furthermore, it incorporates multiple correction mechanisms—such as waveform, temperature, non-rated voltage/current, and calibration corrections—ensuring highly accurate and reliable test results.

Common Troubleshooting
Boot no display: first off, open the socket on the back panel AC 220V fuse box, check the fuse box, you can replace insurance. The screen suddenly black screen: press the reset button, to start measurement. Measurement and computation results are not correct: Check the external wiring, whether by manual operation, whether bad or take the wrong line; relevant parameter is incorrect. Measuring voltage and current display to zero the normal, check whether the current file fuse blown
The company sold the product warranty for one year, five years, responsible for the maintenance(warranty period of the instrument users to the date of purchase), free maintenance during the warranty period, maintenance fees collected only during the period, the user requires after-salesservice call Hotline 15307172868
Main technical parameters
| Plage de mesure de capacité | 30kVA ~ 31500kVA |
| Plage de mesure actuelle | 0 -100A auto-switch the measurement range |
| Précision de la mesure actuelle | ± (0,2% + 3 chiffres) |
| Plage de mesure de tension | Line Voltage0-750V;phase voltage 0-450V, auto-switch the measurement range |
| Précision de la mesure de tension | ± (0,2% + 3 chiffres) |
| La resistance d'isolement | > 100MΩ |
| Courant de fuite | <3.5mA |
| Résistance diélectrique | the power connection on the chassis can withstand: 1500V External transformer can broaden the scope of measurement instruments |
| Frequency Range | 40 ~ 65Hz, accuracy class 0.2; |
| Power Input | AC220V ± 10% |





































