6
Chapter 2 Overview
2.1 Inverter for grid-tied PV systems
CPS SCA20/25KTL-DO series inverter is suitable for use with commercial
and large scale PV grid-tied systems. The system is generally made up of PV
modules, DC power distribution equipment, PV inverter and AC power
distribution equipment (Figure 2-1). The inverter converts the DC from PV
modules to AC with the same frequency and phase as the AC grid. All or part
of the AC power is supplied to local loads, and the surplus power is supplied to
the electricity grid.
DC power
distribution
equipments
AC Grid
Bidirectional
electric meter
AC power
distribution
equipments
Figure 2-1 Grid-tied PV system
2.2 Product features
High conversion efficiency
：
Advanced 3-level conversion technology;
Max. efficiency: 98.3%
；
Euro efficiency: 97.8%
Strong grid adaptability:
7 grid standards applicable; LVRT; Reactive
power adjustable; PF value:±0.8
Flexible communication:
Support RS485, ZigBee and Ethernet
communications; Firmware upgrade by USB disk available; Fast and
convenient operation
Wide DC input voltage range
：
Operating DC Input Voltage Range:
300-900Vdc; Max DC input voltage: 1000V
