SECTION 1
PRODUCT DESCRIPTION
AC Interface Enclosure
This enclosure is NEMA-3R rated. The AC Interface serves as the connection between the isolation transformer/utility and the PV-225208. This enclosure is where the AC line fuses and AC disconnect switch reside. For specific control components see Drawing No. 151809 in Section 7 (Appendix).
DC Interface Enclosure
This enclosure is NEMA-3R rated. The DC Interface serves as the connection interface between the PV array and the PV-225208. This enclosure is where the DC disconnect switch and DC contactor reside. For specific control components see Drawing No. 151810 in Section 7 (Appendix).
CAUTION
The fuses within the PV-225208 are intended for protecting the PV-225208 control circuitry only. They are not intended to provide protection for the PV array or external cabling.
Power Electronics Matrix
The power electronics converters are located at the top of the PV-225208 Main Enclosure. Each matrix is comprised of switching transistors (IGBTs), transistor gate drive electronics, a laminated power bus, DC capacitor bank, and an aluminum extrusion heat sink with a cooling fan. A fan is located above each matrix heatsink.
The PV array is tied logically to the matrix DC bus via the DC interface enclosure. The embedded control unit manages the transfer of power between the DC bus and the utility grid.
Operator Interface
The operator interface is located on the front door of the PV-225208 main enclosure. It consists of an On/Off switch and a keypad with liquid crystal display for control and monitoring purposes.All interface components are NEMA-3R rated. Refer to Section 4 for detailed operation instructions.
Inductor Enclosure
This enclosure is NEMA-3R rated. It contains the necessary filter components to insure the PV-225208 line currents and voltages meet IEEE-519 and UL1741 harmonic distortion requirements. Mounted on the right and left side of the lower enclosure are inductor fans to allow cooling of the line filter components within. This enclosure also serves as the mounting base for the PV-225208 main enclosure.
CONTROL COMPONENTS
The following assemblies are contained within the PV-225208 main enclosure as shown in Figure 1-2. For specific control components see Drawing No. 151808 in Section 7 ( Appendix).
Power Distribution Panel
This panel contains many of the Electro-mechanical, protective, and control power components neces- sary to support the operation of the PV-225208.
DOCUMENT: 151811 | PV-225208 Photovoltaic Inverter | 1-2 |
| Operation and Maintenance Manual | |
