Alpha ESS PWG2-100K, User Manual, Page: 10 / 49

battery, the Bi-directional inverter can transfer energy form grid to batteries. When the inverter works in off-grid
model, the output is fixed amplitude and frequency voltage.
1.5
Safety instructions
This user’s manual is about installation and use of Sinexcel PWG2 series 50KW/100KW storage inverter.
Before installation, please read this user’s manual carefully.
Storage inverter must be commissioned and maintained by the engineers designated by the manufacturer or the
authorized service partner. Otherwise, it might endanger personal safety and result in device fault. Any damage
against the device caused thereby shall not be within the warranty scope.
Storage inverter is only used for commercial/industrial purposes, and it cannot be used as an energy saving device
related to life support device.
Danger
Any contact with copper bar, contactor and terminal inside the device or connected with the loop of power grid might result in
burning or fatal electric shock.

Don’t touch any terminal and conductor connected with the loop of power grid.

Pay attention to any instruction and safety documents about power on-grid.
Warning
There might be an electric shock risk inside the device!

Any operation related to this device will be conducted by professionals.

Pay attention to the safety precautions listed in safety instruction and installation documents.

Pay attention to the safety precautions listed in user’s manual and other documents.
Warning—large leakage current

Before connecting input power supply, please ensure that the grounding is reliable.

The device grounding must comply with the local electric codes.
Warning
When storage battery is connected to storage inverter, there is DC voltage at input port. Please pay attention to it during