NDLI: Remote data collection of VRLA batteries at BellSouth distributed power sites

Content Provider	IEEE Xplore Digital Library
Author	Maeda, M. Ohara, T. Hurst, K.W. Viator, J.
Copyright Year	2002
Description	Author affiliation: Battery Dev. Center, Japan Storage Battery Co. Ltd, Japan (Maeda, M.)
Abstract	An extensive battery field test program was initiated between BellSouth Telecommunications Inc. and Japan Storage Battery (JSB) to understand the actual conditions valve regulated lead-acid (VRLA) batteries are exposed to in severe remote terminal (RT) applications. JSB's long-life VRLA battery types, PWL12V28 and PWL12V38, were installed into six remote terminal (RT) sites in Georgia and Florida along with four channel data loggers. These specific sites were selected to demonstrate worst-case conditions in terms of high ambient temperature and high solar loading. Inside and outside cabinet temperature, battery surface temperature, battery string DC current and float charge voltage was recorded every 10 seconds. The data was transmitted, via a modem, through the telephone lines to BellSouth Engineering facility in Atlanta, GA, and JSB Battery Development Center in Kyoto, Japan. Data collection began in June 2001 and continues to date. The data collection process has allowed the team to verify rectifier stability and accuracy, record ambient temperature, and record the frequency and duration of power failures at each site. This study was aimed at nonenvironmentally controlled RT enclosures. The temperature data has shown that the actual battery temperature is less than previously assumed under these conditions. Based on these findings, the team has concluded that there is a high probability that battery replacement interval may be extended from the current 4 to 5 years to more than 6 years in nonenvironmentally controlled enclosures.
Sponsorship	Power Electron. Soc. IEEE
Starting Page	66
Ending Page	73
File Size	508928
Page Count	8
File Format	PDF
ISBN	0780375122
DOI	10.1109/INTLEC.2002.1048636
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-29
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Batteries Temperature Testing Valves Lead Voltage Modems Telephony Data engineering Power engineering and energy
Content Type	Text
Resource Type	Article

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