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Alpha ESS Co., Ltd.
Page 4 of 40
Your Smart Energy
Introduction
1.1
System Introduction
AlphaESS SMILE5 can be applied in DC-coupled systems (mostly new installation),
AC-coupled systems (mostly retrofit) and Hybrid-coupled systems (mostly retrofit, and
PV capacity-increase), as the following scheme:
Figure 1 DC- and AC-/ Hybrid-coupled Storage System - Scheme
CAUTION:
For the AC-/ Hybrid-coupled system, unlike DC, two power meters are to be
mounted.
1.2
General Precautions
DANGER
Danger to life due to high voltages of the PV array, battery and electric shock.
When exposed to sunlight, the PV array generates dangerous DC voltage which
will be present in the DC conductors and the live components of the inverter.
Touching the DC conductors or the live components can lead to lethal electric
shocks. If you disconnect the DC connectors from the system under load, an
electric arc may occur leading to electric shock and burns.
Do not touch uninsulated cable ends.
Do not touch the DC conductors.
Do not open the inverter and battery.
Do not wipe the system with damp cloth.
Have the system installed and commissioned by qualified people with the
appropriate skills only.
Prior to performing any work on the inverter or the battery pack, disconnect
the inverter from all voltage sources as described in this document.
