Owner`s manual

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7. PowerCenter Installation
A. Electrical System
The general electrical configuration for BWC EXCEL 1 and hybrid system installations is shown in Figure
12. In most cases the loads will be AC (alternating current) and they will be supplied through a DC-to-AC
inverter.
Alternator
Rectifier
(on turbine)
DC Wire Run
(Tower &
Ground)
PowerCenter
PV Array
DC Source Center
(optional, used on
larger systems)
Battery Bank
AC Loads
Back-up Generator
or Utility
Inverter
(connected to
DC Source, if
available)
=
~
Figure 12: Typical EXCEL 1 System Configuration
The PowerCenter has a limited current carrying capacity so we recommend that you use a DC Source
Center whenever you have multiple EXCEL 1 wind turbines. DC Source Centers are available from Ber-
gey Windpower and from other sources.
Additional Design Guidance:
1. If you have multiple EXCEL 1 turbines and PowerCenters, do not connect more than one wind
turbine to one PowerCenter.
2. Connect multiple PowerCenters to a DC Source Center via the PowerCenter’s battery terminals.
3. Do not connect the PowerCenter to another controller that could disconnect the PowerCenter
from the batteries. The PowerCenter should not be disconnected from the battery when there is
input from the wind turbine.
4. Do not connect the PowerCenter to the batteries through diodes
B. Location
The PowerCenter must be installed indoors and should be located relatively close to the battery bank. Do
not install the PowerCenter outdoors; it is not waterproof.
C. Mounting
The PowerCenter needs to be mounted vertically to a wall, or other support structure, so that air can pass
unobstructed through the passive cooling channel behind the enclosure. We recommend setting the
height of the LED’s at eye level if possible so that the system status lights will be easiest to read.
The enclosure dimensions and mounting layout for the PowerCenter are shown in Figure 13. The
PowerCenter should be mounted with four M4 (0.157” dia.) screws. We recommend the following proce-
dure: