Galaxy Manager
User’s Guide
Select Code 193-104-107
Comcode 108988201
Issue 4.3 Preliminary
January 2004
User’s Guide
Select Code 193-104-107
Comcode 108988201
Issue 4.3 Preliminary
January 2004
Galaxy Manager
Notice:
The information, specifications, and procedures in this manual are
subject to change without notice. Lineage Power assumes no
responsibility for any errors that may appear in this document.
© 2008 Lineage Power
All International Rights Reserved
Printed in U.S.A.
Galaxy Manager
Table of Contents
1
Overview / Introduction
Customer Service Contacts
Customer Service, Technical Support,
Product Repair and Return, and Warranty Service
Customer Training
On-Line Power Systems Product Manuals
EasyView and Gateway Software
2
Specifications
3
User Screens
Intro Page
System Overview
Site Symbols
Managed Site Quick Links
Alarm Button
Screen Links
Site List Screen Link
System Information Page
Office Record
Reserve & Recharge Time
Trending
Gateway
Alarms
System Reports
Overview of All Sites
Canned Report - Capacity report
Generic Data Viewer
Active Alarms
Acknowledging Alarms
Alarm History
Print, Pie, and Bar
Engineering Tools
Reserve & Recharge Time Calculator
Office Temperature
End Cell Voltage
Plant Load
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Table of Contents - 1
Galaxy Manager
Rectifier Capacity
Battery Strings
Hours of Reserve
Total Effective Reserve AH
Hours to 95% Recharge
Rectifier Recharge Factor
Cable Sizing Calculator
Lineage Power Website
Help
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Galaxy Manager
List of Figures
Figure 2-1: Gateway Networking Diagram
2-2
Figure 3-1: Gateway Manager Home Page
3-1
Figure 3-2: System Overview Screen
3-3
Figure 3-3: “Drilled Down” Lower Level Map
3-4
Figure 3-4: Gateway Manager Screen Links
3-5
Figure 3-5: Concord System Data
3-6
Figure 3-6: Galaxy Manager Trend Data
3-8
Figure 3-7: Galaxy Gateway Login from the Live Data Link
3-9
Figure 3-8: System Reports
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Figure 3-9: Canned Report - Data Spreadsheet
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Figure 3-10: Canned Report - Capacity Report
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Figure 3-11: System Reports - Generic Data Viewer
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Figure 3-12: Active Alarms
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Figure 3-13: Acknowledge Alarms Screen
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Figure 3-14: Alarm History Viewer
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Figure 3-15: Battery Reserve Calculator
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Figure 3-16: Cable Sizing Calculator, Centralized
Architecture
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Figure 3-17: Cable Sizing Calculator, Distributed
Architecture
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List of Figures - 1
Galaxy Manager
1
Overview / Introduction
Galaxy Manager enables the secure and timely management of
geographically distributed power systems. Its graphical interface gives
the user an intuitive view of the status of all sites and their systems on
geographic maps. Continuously recorded site data as well as the system
configuration are maintained in a relational database. Users can drill
down through the maps or site listings to view specific equipment
readings, print various reports, and interact with various graphical
charts. At all times, the server is continuously monitoring for alarm
conditions and status changes across the sites being managed. All
collected data and monitored sites are also remotely accessible through
the network from the Galaxy Manager, permitting password protected
configuration changes and upgrades.
Alarm data for sites being monitored can be viewed from geographic
regional maps, through a live alarm viewer. Past site alarms are also
available in a history log. Several power management utilitiy tools are
provided, including a system cable sizing tool and a battery reserve/
recharge time calculator that uses the data from a specific site and
provides data for "what if" scenarios. Direct links to Lineage Power
internet pages are also provided to permit easy access to product data
sheets, manuals, and ordering guides. (External sites will not be
accessible if the system is not connected to the Internet).
Galaxy Manager is furnished by Lineage Power as a complete hardware
and software package, requiring only a 10Base-T (RJ-45) physical
connection to the user’s LAN/WAN intranet network. To be monitored
by Galaxy Manager, equipment must be accessible on this intranet
through one of the following:
• a Galaxy Gateway monitoring and control system
• a Galaxy Manager Portal
• another Galaxy Manager compatible data gathering unit.
This manual introduces Galaxy Manager and the views and controls it
offers. Help and guidance with specific issues may be requested via an
email to Lineage Power at galaxy.manager@lineagepower.com. Please
be sure to include your return email address so that we may respond.
Your suggestions and questions are welcomed so that we may continue
to improve the product.
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Overview / Introduction 1 - 1
Galaxy Manager
Recommended server configuration:
Main processor and processor speed: Intel-based CPU, 2 GHz
Memory: 256 MB
Number of hard drives / size: One 40 GB
Operating system: Windows 2000 Professional or Server; Fedora Linux
CD-ROM: CD-RW
Network Card: 10/100 Mbs network interface card
Client requirements:
Microsoft Internet Explorer 6.0 or later
Intranet connectivity
Display: 1024 x 768 VGA (Recommended: 1280 x 1024)
Optional: Sound card and speaker
Customer Service Contacts
Customer Service,
Technical Support,
Product Repair and
Return, and
Warranty Service
For customers in the United States, Canada, Puerto Rico, and the US
Virgin Islands, call 1-800-THE-1PWR (1-800-843-1797). This number
is staffed from 7:00 am to 5:00 pm Central Time (zone 6), Monday
through Friday, on normal business days. At other times this number is
still available, but for emergencies only. Services provided through this
contact include initiating the spare parts procurement process, ordering
documents, product warranty administration, and providing other
product and service information.
For other customers worldwide the 800 number may be accessed after
first dialing the AT&T Direct country code for the country where the
call is originating, or you may contact your local field support center or
your sales representative to discuss your specific needs.
Customer Training
Lineage Power offers customer training on many Power Systems
products. For information call 1-972-284-2163. This number is
answered from 8:00 a.m. until 4:30 p.m., Central Time Zone (Zone 6),
Monday through Friday.
Downloads and
Software
To download the latest product information, product software and
software upgrades, visit our web site at
http://www.lineagepower.com
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Galaxy Manager
2
Specifications
A simplified depiction of a power management network is shown in
Figure 2-1. The key components are the power systems, the remote users
of the system, the server that manages the retrieval, storage and
application tools that present and manipulate the data, and the network
and protocols that allow everything to communicate. Galaxy Manager is
the software manager and host system shown connected at the top of this
network.
A complete monitoring package including a host system and the Galaxy
Manager software is available. The Galaxy Manager host system
consists of a dedicated PC / server for power network management. It is
supplied by Lineage Power with the Galaxy Manager software and all
appropriate business application tools pre-loaded. This system is fully
configured and tested prior to shipping.
If only the Galaxy Manager software is ordered, the customer-provided
server should meet the following minimum specifications:
Main processor and processor speed: Intel-based CPU, 2 GHz
Memory: 256 MB
Number of hard drives / size: One 40 GB
Operating system: Windows 2000 Professional or Server, or
UNIX (e.g. RedHat Version 9)
CD-ROM: CD-RW
Display: 17” diagonal, 1280 x 1024 resolution
16MB VGA or DVI with VGA adapter
Speaker: Internal audio speaker
Network Card: 10/100 Mbs network interface card
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Galaxy Manager
Figure 2-1: Gateway Networking Diagram
Sites without network access to live data may be recorded within Galaxy
Manager using information from a detailed site survey. Detailed sited
surveys are generally performed by Lineage Power, however, these
surveys are available for self population. Limited database changes
(such as contact information, battery string and rectifiers changes, and
administration changes) can be performed using the Galaxy Manager
screens. (See the Galaxy Manager Training Guide for additional
information on how to change site equipment data in the Galaxy
Manager database.)
Galaxy Manager’s usefulness is enhanced when direct communication
with individual power plant sites within the system is provided
permitting the transmission of live alarm and other data. A simple means
for users to communicate with those sites is also provided. Galaxy
Gateway using a LAN or intranet is presently the communication tool
necessary for providing this enhanced capability to Galaxy Manager.
Galaxy Gateway is a remote communication alternative to public
network modems for use with Lineage Power Galaxy SC, Galaxy SCF,
Galaxy Millennium, Galaxy Vector and Yukon controllers. Using an
Ethernet connection, Gateway provides remote access to these power
plant controllers to display power information and permit changes to
their configuration (at the proper security levels) via the World Wide
Web and/or an intranet based LAN (Local Area Network). Working in
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Galaxy Manager
conjunction with Galaxy Manager, it serves as the cornerstone of a safe
and secure comprehensive monitoring and control system designed to
meet power plant engineering, operations, and maintenance needs.
Galaxy Gateway provides access to plant alarm and control information
for either distributed locations (with pager or email notification) or
centralized locations like a Network Operations Center or Galaxy
Manager (using the SNMP protocol), in addition to access via standard
web browsers such as Internet Explorer or Netscape Navigator and
access via any Telnet client such as HyperTerminal.
Galaxy Gateway communicates using TCP/IP internet protocol with the
network. A 10Base-T (RJ-45) physical connection is used between the
Gateway card and a LAN/WAN network device, typically a router.
Built-in Gateway software applications include a web server facility that
supports HTTP (web access), a command line interface via a Telnet
connection to the power system, and a file server, supporting FTP for
remote software upgrades. Also included are support for SMTP internet
pager service, SMTP remote server alarm email capability, and the
Galaxy Manager network management client using SNMP. The TL1
Transaction Language protocol is also supported over TCP/IP through
the Galaxy Gateway.
Galaxy Manager Portal has been developed to communicate to
non-Lineage Power (such as a DGU) and older Lineage Power
equipment. This product incorporates all the standard applicable
features of the Galaxy Gateway into a convenient rack-mounted or
wall-mounted unit. Standard versions of Galaxy Manager Portal will
also be made available for additional equipment. These units can then be
customized by Lineage Power to provide connectivity to equipment
utilizing an RS-232 or RS-485 interface and machine protocol. Thus, the
Galaxy Manager Portal can provide network connectivity to
traditionally non-networked equipment.
Additional information regarding Galaxy Gateway is available on the
Lineage Power web site at http://www.lineagepower.com/
software.html. The links available on this site include the Gateway data
sheet and product manual, plus a demo site to allow live access to a
Gateway using a web browser. There is also a demo version of Gateway
Manager which can be accessed by registering to become a Lineage
Power partner.
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Specifications 2 - 3
Galaxy Manager
3
User Screens
Intro Page
The Introduction screen of Galaxy Manager is depicted in Figure 3-1:
Figure 3-1: Gateway Manager Home Page
This screen is a temporary screen which will automatically redirect you
to the System Overview page after approximately 20 seconds.
NOTE: Unless otherwise indicated, the term “site” in this document
refers to a geographic location of a power system or power systems, and
the word “system” refers to an individual power system at that site.
There may be multiple power systems on different floors at one power
site, for example, that might share an AC Generator.
If your Galaxy Manager requires a login and password, a logon/
password box appears in the upper right hand corner. If you’ve
forgotten your Galaxy Manager login or password, type your valid
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Galaxy Manager
Galaxy Manager email address (the login/password that Lineage Power
has set up in your database) in the User Name field and your password
will be mailed to you at that address.
Administrators of Galaxy Manager can use the Administration link on
the template to administer logins, passwords, email addresses, customer
banner/warning information, and server addresses for your intranet
email.
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Galaxy Manager
System Overview
The System Overview display shows a top-level map of all sites being
monitored (Figure 3-2). Access to the regional geographic mapping and
access feature of Galaxy Manager is obtained by:
• clicking on site symbols (dots and boxes) on the site map
• clicking on the Managed Site quick-links in the upper left-hand
corner of the screen.
• clicking on the Site List link on the right side of the screen which will
display links to all monitored sites.
Figure 3-2: System Overview Screen
Site Symbols
Site symbols shown on these maps use the following legend:
• Grey dots (un-monitored sites) represent individual sites not
currently monitored by Galaxy Manager, but for which site survey
data has been collected and is available for access.
• Green dots (no alarms) represent monitored sites that have no active
alarms.
• Yellow dots (minor alarm) represent monitored sites with active
minor alarm(s).
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Galaxy Manager
• Red dots (major alarm) represent monitored sites with active major
alarm(s).
• Blue boxes represent clusters of sites located relatively close to one
another with no active alarms. Clicking on a blue box brings up a
“zoomed in” map showing increased detail and a new representation
of the individual sites.
• Blinking red/yellow boxes represent clusters of sites located
relatively close to one another, one or more of which have active
alarms. Clicking on a blinking red/yellow box brings up a “zoomed
in” map showing increased detail and a new representation of the
individual sites.
Sites and clusters of sites are identified if the mouse is placed over them.
Figure 3-3: “Drilled Down” Lower Level Map
Note the yellow San Francisco dot in Figure 3-3. Clicking on the San
Francisco dot results in the Site Data screen of Figure 3-5.
Managed Site
Quick Links
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This group of dots represent every managed site. The dots are arranged
in alphabetical order by site name, and can be furthered segregated by
Office Code. Placing the mouse over a dot shows the name of the site it
represents. Each dot is a direct link to the site’s information page.
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Galaxy Manager
Alarm Button
A network power system status indicator (Alarm button) is provided in
the upper right-hand corner of all screens. The color of the indicator
provides the following overall information:
Green: No alarms present.
Yellow or Red: Minor or major alarms are active.
White: Alarms are currently active but have all been acknowledged.
Blue: Indicates no sites are actively monitored.
Clicking on this button shows the active alarms and gives you the option
to acknowledge them by clicking on the alarm event. If all existing
alarms have been acknowledged, the Alarm Button will turn white. If a
new alarm occurs the button will change to the appropriate color (yellow
or red) to indicate that a new alarm condition has become active.
Acknowledged alarm events may be re-activated by clicking on the
alarm event and using the Unacknowledge feature.
Screen Links
Access to the Galaxy Manager data is achieved through the fixed links
located along the right side of the Galaxy Manager screens. These links
are shown in Figure 3-4:
Figure 3-4: Gateway Manager Screen Links
Note that placing the system mouse over the screen links or other links
within Galaxy Manager’s context cursor-sensitive help text provides
help or an expanded description of the link function. A discussion of
each of these Home page links follows.
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Galaxy Manager
Site List Screen
Link
Clicking this link shows a list of all managed sites in alphabetical order.
Clicking a site link in the list displays the site’s information page. For
sites with more than one managed system, the sites’ individual
descriptions are displayed. The appropriate site symbol dot is shown for
each site listed. Those actively monitored will provide the alarm status
for the system.
System Information Page
Figure 3-5: Concord System Data
The System Information screen provides a block-level view of the
managed power system. Each block shows its key parameters. Clicking
on a link in any block shows a screen displaying specific information
about the system component.
Converters, inverters and ringers are considered auxiliary equipment. If
there is no data for these components, the header will show “No
Auxiliary Equipment” and nothing will be shown in the box. This is the
same for all other system components.
Data inside gray boxes indicates “live” data, or data coming from the
Galaxy Gateway.
Note: To set up floorplans for individual systems, you must create a
Floorplans directory in the same directory where the Galaxy Manager
code exists (e.g., /var/www/html on UNIX systems and c:\sokkit\site\ on
Windows systems.) In this directory, you should place .jpg files of the
floorplans with the site name, underscore, floor number. For example,
for the CONCORD site on Floor 1, this file would be named
CONCORD_1.jpg. The floor must be set in the power_system table for
CONCORD. For a generator for a site, the name will be
CONCORD_G.jpg.
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Clicking on the paper/pencil icon in the banner at the top allows editing
of the contact information for this system.
Clicking on the email link in the banner at the top provides an email
form for emailing any information about this screen to any email address
in your network. This email icon only shows up if the contact person has
an internal email address in the Galaxy Manager database.
Clicking on the paper/pencil icons in either the Rectifiers or Battery
boxes allows editing (adding, removing, or changing) rectifier and
battery string information in the Galaxy Manager database.
Office Record
Clicking this link displays a customized report providing key items for
a particular system, such as Plant Load, Battery Strings, and Rectifiers
information.
Reserve &
Recharge Time
Clicking this link takes you to the Reserve & Recharge Calculator for
this system. This page is also accessible by clicking the Reserve &
Recharge Calculator screen link under Engineering Tools. A detailed
description of this feature is found under the Engineering Tools heading
later in this section.
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Galaxy Manager
Trending
Clicking this link takes you to the Trending feature for this system.
Manager automatically trends each monitored system’s total rectifier
capacity and system load. A linear trend approximation for the plant
capacity and load are also provided. Figure 3-6 shows a sample screen.
Figure 3-6: Galaxy Manager Trend Data
Manager trending supports filtering based on dates. The displayed trend
plot may be selected by clicking on the calendars at the left of the graph
to select a start date and an end date. The data in the trend plots may be
printed using the DATA button. This data can be exported to a
comma-delineated file for post processing, by right-clicking anywhere
in the data and choosing Export to Microsoft Excel, if your local
computer has Microsoft Excel.
The trend analysis includes an extrapolation of the data by showing a
trend line for both loads and capacities. Note that the portion of the
graph in yellow indicates time that has already passed; the white portion
of the graph indicates time in the future.
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Galaxy Manager
Gateway
Clicking this link permits the user to log directly into the Galaxy
Gateway card (Figure 3-7) of the power plant to further interrogate or
make changes to the system once the password is entered in the login
screen.
Figure 3-7: Galaxy Gateway Login from the Live Data Link
Alarms
This shows a list of the alarms (displayed in red for major, yellow for
minor, and white for remaining) that are currently active for this system.
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Galaxy Manager
System Reports
Clicking on this link provides a quick means to access Galaxy Manager
“canned” reports, and also a list of tables to generate customer reports,
as shown in Figure 3-8.
Figure 3-8: System Reports
Overview of All
Sites
Clicking this link displays a site system overview report listing more
specific site details (see Figure 3-9).
Figure 3-9: Canned Report - Data Spreadsheet
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Canned Report Capacity report
Clicking this link displays a list of the sites/system, beginning with the
highest percentage of capacity (current capacity divided by maximum
capacity time 100) for that system. This report can be used to decide
which systems may need additional resources to handle capacities. (see
Figure 3-10).
Figure 3-10: Canned Report - Capacity Report
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Galaxy Manager
Generic Data
Viewer
Galaxy Manager tables are displayed that are organized by equipment.
By clicking on any of these table, you can generate your own
customized database reports, such as shown in Figure 3-11. This screen
shows you how to generate a report from the Rectifier table, if you want
to see System Name, Rectifier ID, and Serial Number, sorted by
Rectifier ID, for the G02 rectifier for each system. Hit Generate Report
to create this table, which can then be exported to Microsoft Excel by
right-clicking anywhere in the data.
Note: If you would like to enter a manual filter (e.g., RectifierID=G% to
see all rectifiers with IDs that begin with G), you can edit the FILTER
box manually.
Figure 3-11: System Reports - Generic Data Viewer
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Galaxy Manager
Active Alarms
This screen link provides a list of active alarms for all systems currently
monitored by Galaxy Manager. See Figure 3-12. The time and date
displayed are the time and date that Galaxy Manager received the alarm
information.
Figure 3-12: Active Alarms
Alarm entries may appear in any of 3 colors:
• Black Text / Red Background: Major alarms
• Black Text / Yellow Background: Minor alarms
• White Text / Blue Background: Acknowledged alarms
Note that you can click on the header of each column in this table to sort
by that header; for example, if you’d like to see all CONCORD alarms
at the top of the report, click on the System header. You can click this
header again to have the alarms sorted in the opposite direction.
You can also click inside the table on a particular system (e.g.,
CONCORD) to get directly to that system page, for example, to try to
diagnose the alarm.
Acknowledging
Alarms
Click on any one of the alarms in the Event column in the Active Alarms
screen to acknowledge the alarm and input a comment (see Figure 3-13).
You will be prompted to verify this operation. Acknowledging an alarm
does not remove the alarm, but provides an indication that the alarm is
currently being investigated. The Acknowledge button will change to
“Unacknowledge” for acknowledged alarms, and an alarm can be
unacknowledged in the same fashion.
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Galaxy Manager
Figure 3-13: Acknowledge Alarms Screen
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Alarm History
This link displays alarms that have activated and/or retired in the last 30
days for all sites monitored by Galaxy Manager. See Figure 3-14.
Figure 3-14: Alarm History Viewer
In this screen, when you click on the FILTER link at the top, an Alarm
History Filter box appears that allows you to filter the alarm history data
by To-From Dates, System, Alarm, Severity (such as major, minor, or
warning), and Action (such as acknowledged or unacknowledged).
Print, Pie, and Bar
Three links are provided at the top of the page:
Print: This button opens a printer-friendly screen of the currently
displayed data.
Pie: Click the Pie button to see a pie chart system comparison of the
number of alarms in the history. If the display is currently filtered, only
alarms currently displayed are charted. Once the pie chart is displayed,
you can display it by system (default) or by alarm.
Bar: Click the Bar button to see a horizontal bar chart system
comparison of the number of alarms in the history. If the display is
currently filtered, only alarms currently displayed are charted. Once the
bar chart is displayed, you can display it by system (default) or by alarm.
Note: To permit printing backgrounds and bar charts in Windows
Explorer, change your internet options settings to “Print background
colors and images.” Typically this option is found in the menus under
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Galaxy Manager
Tools > Internet Options > Advanced, and under the sub-heading
“Printing”. You can also right-click over the data and Export this data to
Microsoft Excel.
Engineering
Tools
Clicking Engineering Tools in the screen links list provides access to the
following system engineering tools:
• Reserve/Recharge Calculator
• Cable Sizing Tool
Reserve &
Recharge Time
Calculator
If opened from a System Display screen, that system’s prediction data is
shown on the left half of the screen, while the right half can be used to
make changes to any of these parameters for establishing “What If?”
scenarios (see Figure 3-15). If opened from the screen links, typical
system default values (column 2) are used.
Figure 3-15: Battery Reserve Calculator
Note that this tool does not take into account battery aging within its
prediction algorithm.
The Reserve & Recharge Time Calculator can solve for hours of
reserve, total effective reserve in amp-hours, hours to 95% recharge of
the batteries and rectifier recharge factor. Enter new values for office
temperature, end cell voltage, plant load, rectifier capacity or battery
strings and hit enter to update the calculations. Calculations are
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automatically updated when a parameter is changed and the cursor is
moved to another parameter.
Office Temperature
All calculations are referenced to 77°F. This field allows you to see the
impact of ambient temperatures above or below this reference
temperature. Valid temperature range is from 40°F to 110°F. The default
temperature value is 77°F.
End Cell Voltage
Average voltage that each cell in all strings is permitted to discharge to
over the discharge period. Valid range for this parameter in the
Calculator is 1.75V to 2.00V. The default value is 1.86V.
Plant Load
Total system load of the system. For monitored systems, this is the
actual load current reported to Galaxy Manager. Valid load range for
this parameter is from 0 to 20000 amps. The default “What If” value for
plant load is 1.4 times the present system load.
Rectifier Capacity
Total rectifier capacity of the system. Valid capacity range is from 0 to
20000 amps. The default value is the present rectifier capacity of the
system.
Battery Strings
Number and type of battery strings. Enter the number of battery strings
(0 to 100) in the left-hand portion of the field, and select the battery type
from the drop-down box (listed in alphabetical order). The default
values in these fields are the number of strings and type of batteries
installed in the system. An additional battery string “What If?”
parameter is provided to allow a different battery type to be selected.
Hours of Reserve
Calculated hours of reserve for the system based on the entered
parameter values. If the hours of reserve time is between 3.6 and 4 hours
the displayed hours of reserve time value will be highlighted yellow. If
the hours of reserve time is less than 3.6 hours the displayed hours of
reserve time value will be highlighted red. This is based on a standard
4-hour reserve time.
Total Effective
Reserve AH
Calculated total effective amp-hour rating of all of the strings and
battery types installed. Also shown is an effective reserve amp-hour
reserve calculation for each battery type when multiple battery types are
used. The individual discharge current for each battery type is also
listed.
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Galaxy Manager
Hours to 95%
Recharge
Rectifier Recharge
Factor
Calculated number of hours to charge completely discharged system
batteries back to 95% capacity. This is a conservative number since the
recharge algorithm is based on an end-cell voltage of 1.75V. If the
recharge time is between 24 and 28.8 hours the displayed recharge time
value will be highlighted yellow. If the recharge time is greater than 28.8
hours the displayed recharge time value will be highlighted red. This is
based on a standard 24-hour recharge time.
Calculated ratio of rectifier capacity divided by system load.
Cable Sizing Calculator
The Cable Sizing Calculator provides a pictorial view of the major
elements of the DC distribution network. This calculator is for sizing
cable and assumes that sufficient battery strings are in place to support
the load shown, for the required reserve time, to the minimum discharge
volts per cell that is inputted. Battery voltage at the end of this reserve
period will be the number of cells multiplied by the minimum volts per
cell (VPC). The voltage drops throughout the network may then be
specified and the conductors required to support the load to those
voltage drops, and ultimately to a required minimum voltage at the end
equipment, are calculated.
The voltage drop calculation formula for copper conductors is:
Vdrop = 11.1 x Length (ft) x Load (amps) / cable size (circular mills)
Cable sizes are expressed in standard DC conductor sizes (or their
multiples) available through Lineage Power as follows: 14 AWG, 12
AWG, 10 AWG, 8 AWG, 6 AWG, 4 AWG, 2 AWG, 0 AWG, 00 AWG,
0000 AWG, 350 kcmil, 500 kcmil, and 750 kcmil. All conductor lengths
used in the tool should be entered as one-way cable run lengths and that
the negligible voltage drops of any monitoring shunts, fuses, lug
terminations, etc., within the distribution system have been ignored.
Two Cable Sizing Calculators are provided, one for power systems
using centralized architecture (containing a central bus work where all
load current is monitored using one common shunt or Hall-effect
assembly) and one for distributed architecture systems (no common
load shunt, but with individual rectifier and battery currents monitored).
The centralized calculator is displayed by default. Links are provided at
the top of each calculator (“switch to distributed” and “switch to
centralized”) to change the currently displayed calculator.
3 - 18 User Screens
Issue 4.3 Preliminary January 2004
Galaxy Manager
Both Calculators are displayed with the power system Rectifier and
Battery segments located to the left, Primary and Secondary
Distribution segments, then finally the End Equipment spreading across
to the right. The Calculators initiate with default values provided for
voltage drops between the distribution system segments, a minimum
required voltage of 42V at the End Equipment, and battery strings c/o 24
cells engineered to a 1.86 minimum voltage at the end of the designed
reserve period. These values can be changed as required to add both load
(in amps) and loop length (in feet). Any change that violates the End
Equipment’s minimum voltage parameter results in its value shown in
red. An error message is also displayed anytime that a load value entry
is made that results in a higher load value to the right of its source,
shown to its left.
Centralized Architecture
Figure 3-16: Cable Sizing Calculator, Centralized Architecture
Issue 4.3 Preliminary January 2004
User Screens 3 - 19
Galaxy Manager
Distributed Architecture
Figure 3-17: Cable Sizing Calculator, Distributed Architecture
Lineage Power
Website
Link to Lineage Power Website.
Help
When you select the HELP button, you get a pull-down menu to the
ONLINE MANUAL (pdf version of this manual), and links to Lineage
Power’s on-line manuals on the Web, and the Lineage Power customer
login page.
3 - 20 User Screens
Issue 4.3 Preliminary January 2004
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