Alpha Technologies PowerAgent SC3 - Manual (Page 7)

PowerAgent TM SC3 Site Controller Document # 700-000014-01 Rev 2
Installation and Operation
Phoenix Broadband Technologies, LLC 10/28/2010
Page 7 of 57
2 System Overview
The Phoenix Broadband Technologies (PBT)
PowerAgent
TM Battery Management System is
a comprehensive solution for remotely
monitoring the state of health for individual cells
or jars within the battery bank of a UPS or DC
power plant system.
The system consists of a series Sensor modules
which are electrically and mechanically affixed to
the terminal posts of the jars being monitored,
and a PowerAgent
TM Site Controller unit which
collects readings from the individual sensors and
makes the information available for
management purposes via an Ethernet local
area network. The Sensor modules are designed for use with 2 or 12 volt jars in DC power plants
and UPS power systems up to 600 volts DC and with several choices of mounting brackets for
different post configurations.
Each sensor in a PowerAgent
TM
Battery Management System
measures its associated cell or jar’s terminal voltage, post or
case temperature, and internal cell impedance (admittance).
Multiple sensors within a string of monitored jars are
interconnected in a “daisy-chain” utilizing CAT-5 cabling and RJ-
45 connectors. Each daisy-chain of sensors is connected via
another CAT-5 cable to one of the six string ports on the Site
Controller. Each site controller can manage up to six strings of
batteries with a maximum of 40 batteries in any string and a site
total of 240 batteries. The site controller has extensive user-definable set-up capabilities,
including labels for every monitored jar and alarm thresholds for voltage, temperature and
admittance on each individual jar.
The site controller has several user interface mechanisms built-in, including a configurable web
server that displays site, string, and individual jar
information, as well as an SNMP (Simple Network
Management Protocol) interface that allows any SNMP
compliant management software to collect data and
perform jar tests. Other features of the site controller
include a password protected Telnet port for remotely
configuring the unit, A DHCP (Dynamic Host
Configuration Protocol) client that automatically obtains
an IP (internet protocol) address from a DHCP server,
and TFTP (Trivial File Transfer Protocol) server for
uploading firmware changes remotely.
Battery String #1 Battery String #2
Up To 6
Ba ttery
String s
M asterAgent
Site
Controller
Network
Connectivity
BatteryAgent
Sensor
Units
RJ-11
“Daisy Cha in”