What to do if Huawei SUN2000-40KTL-M3 Inverter shows 'Phase wire short-circuited to PE'?
If your Huawei Inverter displays 'Phase wire short-circuited to PE', it means the impedance of the output phase wire to PE is low, or the output phase wire is short-circuited to PE. Check the impedance of the output phase wire to PE to locate the position with low impedance and rectify the fault.
How to deal with 'Low insulation resistance' error on Huawei Inverter?
If your Huawei Inverter is showing a 'Low insulation resistance' error, it could be due to: ? The PV array being short-circuited with PE. ? The PV string being in a moist environment for a long time, and the circuit not being well insulated to ground. To address this: ? Check the impedance between the PV string and the PE cable. If a short circuit occurs, rectify the fault. ? Check whether the PE cable of the inverter is correctly connected. ? If you've confirmed that the impedance is lower than the specified protection threshold in a cloudy or rainy environment, log in to the app, SmartLogger, or NMS and set the Insulation resistance protection threshold.
General| Max. Efficiency | 98.7% |
|---|---|
| European Efficiency | 98.4% |
| Max. Input Voltage | 1100 V |
| MPPT Operating Voltage Range | 200 V - 1000 V |
| Max. Input Current per MPPT | 26 A |
| Number of MPPTs | 4 |
| Rated Output Power | 40000 W |
| Rated AC Voltage | 400 V |
| Rated AC Frequency | 50 Hz / 60 Hz |
| Adjustable Power Factor Range | 0.8 leading - 0.8 lagging |
| Total Harmonic Distortion (THD) | <3% |
| DC Reverse-Polarity Protection | Yes |
| AC Overcurrent Protection | Yes |
| DC Surge Protection | Type II |
| AC Surge Protection | Type II |
| Insulation Monitoring | Yes |
| Residual Current Monitoring | Yes |
| DC Switch | Yes |
| Protection Class | IP66 |
| Operating Temperature Range | -25°C to +60°C |
| Relative Humidity (Operating) | 0% - 100% |
| Cooling | Natural Convection |
| Max. Apparent AC Power | 44000 VA |
| AC Voltage Range | 320 V - 480 V |
| Operating Altitude | 4000 m |
| Display | LED Indicators |
| Communication | RS485, WLAN |
| Weight | 43 kg |
| Max. DC Power | 60000 W |
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