CPS SCA Series, Installation And Operation Manual

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2 Overview
2.1 Inverter for grid-tied PV systems
CPS SCA 25 KTL-DO/US-208
、
CPS SCA50KTL-DO/US-480 and SCA60
KTL- DO/US-480 3-Phase Transformerless String Inverters are designed for
use with an UNGROUNDED PV array in carport, commercial rooftop, and
large utility scale PV grid-tied systems. The system is generally made up of
PV modules, a 3-Phase String Inverter with a fused combiner/disconnect,
and AC power distribution equipment (Figure 2-1). The inverter converts the
available DC energy from the PV modules to AC power by synchronizing the
output current to 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 exported to
the electric utility grid.
AC Grid
Bidirectional
electric meter
AC power
distribution
equipment
Figure 2-1: Grid-tied PV System
2.2 Product Features

High Conversion Efficiency: Advanced 3-level conversion topology
with Space-Vector PWM; SCA25KTL-DO/US-208 Max. efficiency: 97%,
CEC efficiency: 96.5%. SCA50/60KTL-DO/US-480 Max. efficiency:
98.8%, CEC efficiency: 98.5%.