PVI 36TL Installation and Operation Manual (Rev H)
DOCR-070588-H
Page
10
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120
1.3 Product Protection Functions
Reverse polarity protection of DC input
Short circuit protection
Arc-Fault Circuit Interruption
Anti-islanding protection
Input and output over-voltage protection
Input over-current protection
Monitoring of DC input insulation against ground
Monitoring of AC output voltage and frequency
Monitoring of Leakage current against ground
Monitoring of DC injection from AC output
Monitoring of ambient temperature
Monitoring of IGBT module temperature
1.4 Circuit Structure Design
The basic schematic diagram of PVI 36TL inverter is shown in Figure 1.2.
The input of PV modules passes through surge protection circuitry, DC EMI wave filter,
and the front-end boost circuitry to achieve maximum power tracking and boost up
voltages. The output of the inverter converts the DC voltage to 3-phase AC voltage.
The high frequency AC components are removed with a wave filter. Then the 3-phase
AC voltage is passed through two-stage relays and EMI wave filter to produce high
quality AC power.
Figure 1.2 - Schematic Diagram of PVI 36TL Inverter
