What to do if Huawei Network Hardware shows Grid Failure?
If your Huawei Network Hardware indicates a Grid Failure, check the AC voltage. Also, verify that the AC circuit is properly connected and that the AC circuit breaker is in the ON position.
How to fix Huawei Network Hardware String Reversed error?
If your Huawei Network Hardware displays a String Reversed error, first check if the PV string is connected with reverse polarity. If it is, wait for the PV string current to drop below 0.5 A, then set the DC SWITCH to OFF and correct the PV string polarity. If the problem continues, try resetting the device using the local maintenance app or the WebUI of the upper-layer controller. Alternatively, power down the device by turning off both the AC and DC switches for 5 minutes, and then turn them back on.
What to do if my Huawei Network Hardware has a Grid Overvoltage?
If your Huawei Network Hardware reports a Grid Overvoltage, there are a few things you can check. If the alarm appears only occasionally, it could be due to a temporary issue with the power grid, and the device should automatically recover when the grid returns to normal. However, if the alarm is frequent, verify that the power grid voltage is within the acceptable range; if it's not, contact your local power operator. If the voltage is within range, you can adjust the grid overvoltage protection threshold using the mobile app or network management system (NMS), but only with the consent of the local power operator. Also, check for high peak voltages on the power grid. If the problem persists, contact your power operator.
What causes Huawei Network Hardware to have String Voltage High?
A String Voltage High error on your Huawei Network Hardware usually means that the PV array is not configured correctly. Too many PV modules might be connected in series in the PV string, causing the open-circuit voltage to exceed the device's maximum operating voltage. To fix this, check the serial connection configuration of the PV string to ensure the PV string open-circuit voltage does not exceed the device's maximum operating voltage. Once the PV array configuration is corrected, the alarm should disappear.
How to troubleshoot Huawei Network Hardware AC Overcurrent?
If your Huawei Network Hardware is showing an AC Overcurrent error, it indicates a dramatic voltage drop or a short circuit in the grid. The device is designed to detect and rectify external working conditions in real time, so it should automatically recover once the fault is cleared. However, if the alarm occurs frequently and affects the power plant's energy yield, check for a short circuit at the output. If the problem persists, contact your dealer or technical support.
What to do if Huawei Network Hardware shows Device Fault?
If your Huawei Network Hardware indicates a Device Fault, turn off the AC output switch and DC input switch, and then turn them back on after 5 minutes. If the fault continues, contact your dealer or technical support.
How to resolve Huawei Network Hardware Grid Overfrequency?
If your Huawei Network Hardware displays a Grid Overfrequency error, it indicates that the power grid frequency is higher than the standard requirement for the local power grid. If the alarm occurs occasionally, it may be a temporary grid abnormality, and the device should recover automatically. If it occurs frequently, check if the power grid frequency is within the allowed range and contact the local power operator if it's not. If the frequency is within range, you can modify the grid overfrequency protection threshold via the mobile app or NMS with the consent of the local power operator.
How to fix Huawei Network Hardware DC Arc Fault?
If your Huawei Network Hardware is showing a DC Arc Fault, check the PV string power cables for arcing or poor contact.
Why does Huawei Network Hardware show Low Insulation Resistance?
A Low Insulation Resistance error on your Huawei Network Hardware indicates a short circuit between the PV array and the ground, or that the ambient air of the PV array is damp causing poor insulation. To address this: 1. Set the insulation resistance protection to the minimum value and restart the inverter. 2. Check that the PE cable of the device is correctly connected. 3. Check the output impedance of the PV array to ground, and rectify any short circuits or insulation issues. If there are multiple PV strings, check them one by one.
What causes Huawei Network Hardware to display Grid Underfrequency?
If your Huawei Network Hardware shows a Grid Underfrequency error, it means the actual power grid frequency is lower than the standard requirement for the local power grid. If this occurs occasionally, it may be due to a temporary issue with the power grid, and the device should recover automatically. If it occurs frequently, check whether the power grid frequency is within the allowed range and contact the local power operator if it isn't. If the frequency is within range, you can modify the grid underfrequency protection threshold via the mobile app or NMS with the consent of the local power operator.
General| Maximum Efficiency | 98.6% |
|---|---|
| Number of MPPTs | 2 |
| Cooling Method | Natural convection |
| Protection Class | IP65 |
| Rated Output Voltage | 220 Vac / 380 Vac, 230 Vac / 400 Vac, 240 Vac / 415 Vac, 3W+N+PE |
| Operating Temperature Range | -25 °C ~ +60 °C |
| Rated Output Power | 8 kW |
| Input Voltage Range | 200-1000 V |
| Max. Input Voltage | 1100 V |
| Max. Apparent Power | 8.8 kVA |
| Maximum Input Voltage | 1100 V |
| MPPT Voltage Range | 200-1000 V |
| Maximum Output Power | 8 kW |
| Output Frequency | 50 Hz / 60 Hz |
| Power Factor | 0.8 leading to 0.8 lagging |
| Communication | RS485 |
To Next Page
