3 product description, 1 pv system overview, 2 sunny central – SMA SC 500CP-10-JP Installation Manual User Manual
Page 13: 1 design and function of the sunny central, 1 pv system overview 3.2 sunny central

SMA Solar Technology AG
3 Product Description
Installation Manual
SCCP-JP-IA-A4-en-12
13
3 Product Description
3.1 PV System Overview
The Sunny Central is a PV inverter which converts the direct current generated in the PV modules into grid-compliant
alternating current. An external MV transformer fitted downstream feeds the generated alternating current into the utility
grid.
Figure 1: Principle of a grid-tie PV system with one inverter
3.2 Sunny Central
3.2.1 Design and Function of the Sunny Central
Figure 2: Sunny Central (example)
Position
Designation
A
PV array
B
DC sub-distribution (e.g. Sunny String-Monitor)
C
Sunny Central
D
External MV transformer, e.g. Transformer Compact Station with MV transformer
E
Utility grid
Position
Designation
A
Inverter cabinet
B
Interface cabinet
C
Touch display
D
Service interface
E
Key switch