AlphaGuard™ Potted

Alpha Technologies Inc.
Phone: 360 647 2360
Email: alpha@alpha.com

ProductsCable / BroadbandOutside Plant PowerBatteriesAlphaGuard™AlphaGuard™ Potted

AlphaGuard™ Potted

Extends battery life for batteries installed below grade
Replace only single batteries, not the entire string
Spreads charge voltage equally across batteries

AlphaGuard monitors and protects your batteries by spreading the charge voltage equally across all the batteries in a string, ensuring that every battery in the string, whether old or new, is properly charged. With an ideal voltage always across each battery, life and runtime are optimized. Individual batteries in a string can be replaced as they fail, allowing batteries to be left in service longer. This stops the wasteful and costly practice of disposing of batteries that may have years of useful life left because one battery in a string fails or replacing batteries based on a scheduled maintenance program. With the optional communications cabling and interface module individual battery measurements are made at the batteries and reported, improving accuracy and allowing the power supply to determine End-of-Discharge by individual batteries instead of the string voltage and reporting to status monitoring systems. The Potted Alpha Guard model is ideal for applications where batteries are installed below grade and subject to damp conditions or possible immersion.

General

Configuration
Quantity	One (1) AlphaGuard is required per battery string
Service Location	With the battery string

Cabling
AG-S9-Cable	AG-CMT-36/48SC Voltage Sense Cable, Single String, 9’
AG-D9-Cable	AG-CMT-36/48SC Voltage Sense Cable, Two String, 9’
AG-S35-Cable	AG-CMT-36/48SC Voltage Sense Cable, Single String, 35’
AG-D35-Cable	AG-CMT-36/48SC Voltage Sense Cable, Two String, 35’

Mechanical
Housing Material	High impact epoxy
Dimensions (in)	1.44H x 4.82W x 4.25D
(mm)	36H x 122W x 108D
Weight (lb/kg)	1.5/.67

Electrical
Batteries	Individual 12VDC nominal batteries configured into 36 or 48VDC strings
Circuit Protection	Single blow fuse, reverse polarity protected
Environmental	-40 to 55°C (-40 to 131°F), 5 to 95% humidity
Quiescent Current Draw	1mA max. (Current consumed by AlphaGuard after low voltage total shutdown)
Charge Management	Most effective during float period of charge
Max. Current	2A @ 25°C
Quality of Final Balance	±100mV max. between any two (2) batteries
Charging Efficiency	80 to 90%
Charge Balance	±100mV typical
Low Voltage Cutoff	34.5VDC/46VDC ±5%
Communication to XM2	AlphaGuard configured EDSM communications card

Document Downloads

Title	Type	Version	Date
AlphaGuard Potted Datasheet_English (LTR)	Datasheet	049-225-13-004	August 10, 2007
AlphaGuard Potted Datasheet_English (A4)	Datasheet	049-225-14-003	August 10, 2007
AlphaGuard AG-CMT-3SC/4SC-P Installation Instructions	Manual	012-306-C1-001	January 1, 2007