Off-grid mode
1. AEH connected to PV modules on DC side and grid on the AC side;
2. AEH connected to AC load and AC supply (grid or genset)
3. Batteries started.
4. Every switches and breakers on
a. If PV greater than consumption, PV supply consumption and charge batteries
b. If PV lower than consumption, PV and batteries supply consumption, power
consumption can’t be greater than nominal power of cabinet
c. When the battery level is low, the cabinet is connected to the grid by contactor or start
genset to supply loads and charge batteries.
CAUTION
When the ambient temperature is too high, it is normal that the AEH reduces the
output power. However, if this frequently happens, check the cooling surface of the
AEH or place the AEH in a better ventilation condition place. If the AEH fan is dirty,
please clean the fan, if there is a problem with the AEH internal electrical, please
seek help from professional services.
3.5 Battery setting
Battery is an important part of the energy storage system, strict protection is needed in the whole
operation process. Protection threshold needs to be set on AEH to ensure safe operation of battery,
parameters including: battery quantity and unit quantity, capacity, charge current, discharge current,
over voltage protection, under-voltage protection and so on. Battery parameter setting need to be
done by professional personnel. lmproper setting of the battery will affect the normal operation.
3.6 Protection
Anti-islanding
When the local power grid shut down due to malfunction or maintenance of equipment, the AEH will
be physically cut off the connection to the grid, in order to protect operating personnel working in the
electricity grid, and the cabinet is in compliance with the relevant standards.
Lightning protection
Cabinet lightning protection module has the DC / AC side lightning over voltage protection to avoid
the AEH from being damaged. More protection features, please refer to section 6.3.
3.7 Storage
If there is a long time before installation or operation, the AEH cabinet should be stored appropriately.
●The packaging should be restored toits original state;
●Retain the desiccant in the packaging.
●The AEH can only be stored when it is stopped and ail the doors are closed
●in a dry room to protect the internai circuits against dust and moisture.
●Operating temperature range: -10~55 °C
●Operating relative humidity range:0 %~90%
●Max. altitude:2000 m
