Schneider Electric Xantrex XW Guía de instalación descargar pdf (Pagina 17)

Charge Controlling

975-0540-01-01 Revision B 1–3

This guide is for use by qualified personnel only.

Charge Controlling

The charge controller can regulate PV array current at an appropriate level for

24 or 48 V batteries. It produces up to 80 amps of charging current for both

battery voltages up to 2560 watts (24 V) or 4800 watts (48 V).

The charge controller controls how the batteries are charged by the PV array. It

can be configured to use a two-stage (no float) or three-stage charging process

to maintain battery voltage at bulk, absorption, or float levels. When charging, the

charge controller regulates the battery voltage and the output current based on

the amount of DC power available from the PV array and the state of charge of

the battery. See the Xantrex XW MPPT 80 600 Solar Charge Controller Operation

Guide for more information on two-stage and three-stage charging as well as the

different stages.

Typical Installation

Figure 1-1shows a typical installation that includes a charge controller.

Figure 1-1 Typical installation

PDP

MPPT

80 600

100 Adc

SCP

Typical PV array:

• 200–240 W modules

• 10–12 modules per string

• 4800 W maximum for 48 V

systems (2 strings)

• 2560 W maximum for 24 V

systems (1 string)

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Schneider Electric Xantrex XW Guía de instalación Pagina 17