How to troubleshoot Low Array Insulation Resistance on Huawei SUN2000-28KTL Inverter?
The Huawei Inverter shows a Low Array Insulation Resistance error when the insulation resistance against ground of the PV strings is low, possibly due to a short circuit between PV strings and the ground. Check the insulation resistance against the ground of the PV strings and rectify any short circuit.
What does Frequency Abnormal mean on a Huawei SUN2000-28KTL Inverter?
The Huawei Inverter displays a Frequency Abnormal error when the grid's actual frequency is higher or lower than the required value for the local grid. If this alarm occurs accidentally, it's possible there's an issue with the grid. The inverter will automatically revert to normal once the problem is resolved.
General| Model | SUN2000-28KTL |
|---|---|
| Rated Output Power | 28 kW |
| Max. Input Voltage | 1100 V |
| MPPT Voltage Range | 200 V - 1000 V |
| Number of MPPT Trackers | 2 |
| Max. Input Current per MPPT | 26 A |
| Rated AC Voltage | 400 V |
| Rated Output Voltage | 400 V |
| Output Frequency | 50 Hz / 60 Hz |
| Max. Efficiency | 98.6% |
| Protection Degree | IP65 |
| DC Connection | MC4 |
| Maximum Output Power | 28 kW |
| Power Factor Adjustment Range | 0.8 leading ... 0.8 lagging |
| Operating Temperature Range | -25 °C to 60°C |
| Cooling | Natural cooling |
To Next Page
