LIVOLTEK Hyper 2000, Руководство по эксплуатации

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4.3.2 Off Grid / Back-up Operating Mode
*3
For systems installed in area with a weak grid or even without grid, the inverter
should be working in off grid / back-up operating mode:
i.
When grid or diesel generator is available,
•
When the battery is below the DischargeEndSOC@Grid value, it will be
charged firstly from PV and secondly from grid at the max allowable
current.
•
When the battery is above the DischargeEndSOC@Grid value, it will be
charged by excess PV energy and will discharge if the PV power is not
enough to support the loads.
ii.
When grid or diesel generator is not available,
•
When there is enough energy stored in the battery, the EPS port will
export power to s
upport local loads firstly from PV. If there’s excess PV
energy, it will be used to charge the battery. Otherwise battery will be
discharged to feed the load.
•
When the battery SOC is below the DischargeEnd SOC@EPS value, the
inverter will disconnect power to the EPS port. All energy from PV will be
used to charge the battery until the SOC reaches the EPS restart value.
iii. When working in this mode:
•
The max power*3 from the EPS port is limited by inverter type, battery
type and battery SOC.
•
A larger battery is always recommended for off grid / back up
configuration. You should never discharge the battery too deeply to
avoid it “Running Flat”.
•
When there is an overload or short circuit fault, the inverter will stop
working and an alarm will sound. It will try to restart several times before
shutting down completely. Turn off or unplug load to remove the short
circuit fault or overload as soon as possible.
*2: Firmware update may be required to support this mode.
*3: Please be noted that refrigerators, air conditioners, water pumps and etc.,
demand a large start up currents and may trip EPS overload protection. Be
sure not to connect too many of this kind of load to avoid frequent system