SMA Sunny Island 5048 Installation Instructions Manual page 168

SMA
Glossary Technologie AG
String inverter
An inverter concept that avoids the disadvantages of the central inverter concept. The
PV is split into individual strings, each of which is connected to the external mains supply
with its own string inverter. This greatly simplifies installation and greatly reduces the
yield losses caused by manufacturing deviations or variations in shadowing of the solar
modules.
VRLA
Valve Regulated Lead Acid battery: Lead-acid battery with semi-solid electrolyte or
sealed lead acid battery. Examples of this type of battery are Gel batteries and AGM
batteries (Absorbent Glass Mat).
Seite 168 SI5048-11:EE4206 Technical Description