CPS SC Series, Инструкция по установке и эксплуатации

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efficiency of the whole PV system. The inverter has 2 MPPTs, so a separate
array can be controlled by an independent Maximum Power Point Tracking
(MPPT) control circuit. This means that the two arrays can be installed in
different positions and orientations.
The transformerless design of inverter with the benefit of small size, light
weight and high power density, provides the best cost performance for the
whole PV system.
The inverter is available for both indoor and outdoor applications due to its
NEMA 3R (IP65) protection class enclosure.
The integrated DC and AC switches make the maintenance more flexible
and safer. Besides, the inverter has the function to support one or two
independent MPPTs input to improve the system efficiency. Meanwhile, the
inverter can automatically identify the connection way between PV modules
due to its excellent self-adaption ability.
2.4 Circuit structure design
The basic schematic diagram of CPS SC20KTL-DO/US-480 is shown in
Figure 2-2. The input DC passes through surge protection circuitry, DC EMI
filter, and the boost circuit to achieve maximum power tracking and boost up
voltages. The inverter converts the DC energy to 3-phase AC energy. The high
frequency components of AC voltage are removed with a line filter. Then the
3-phase AC energy is sent through two-stage relays and EMI filter to produce
high quality AC power.