Here you can find our FAQ concerning the purchase and installation of Huawei inverters. If you can't find your question, please contact us.

The maximum layout factor can be filled in at its sole discretion. Basically we say that a layout factor of 1.20 is recommended for a south system and  for east-west we recommend 1:25 or 1:30.

The layout factor is the degree of over / under-sizing of your inverter. It is the ratio between the total installed Wp power and the rated output power of the inverter.

The SmartLogger can be programmed in a way that a make-contact from a generator is needed to allow the PV plant to work and a normally closed- contact to stop the PV plant.

This is not true, a string fuse needs to be applied when more than two strings are used.

No, lightning cannot go in the mains via de PV-plant because Huawei inverters prevent that through the surge arresters.

The maximum distance between the inverter and the SmartLogger is 1000m. The distance between the SmartLogger and router is maximum 100m. There are three ports on the Smart Logger on which a total of 80 inverters can be connected.

The PQ mode is, by default, set on 1 which is 40 kW AC. In the inverter (or via the SmartLogger or NetEco) the PQ mode can be set on 2, which is 36kW AC.

PQ stands for active power (p) and reactive power (Q).

There is a yield difference between de different MPPT voltages. The better the inverter is configured (read: takes the right MPPT voltage) the better the yield is.

The inverters do work above 200V, however you have to make sure the strings are long, then this 200V isn’t an issue. It is better to use one string less instead of shorter strings.

Huawei has earth leakage protection built in the inverters. Therefore the DC Switch is not necessary as long as the earthing resistance is not too high. When the earthing resistance is too high, you could use an circuit breaker Type A, 300MA.