Title :
Evolution of VRLA battery maintenance technologies at NTT
Author :
Ohnuki, Katsuhide ; Sakai, Tatsuo ; Kawagoe, Yuji
Author_Institution :
NTT Facilities, Inc., Tokyo
fDate :
Sept. 30 2007-Oct. 4 2007
Abstract :
Since the introduction of VRLA batteries in 1987, NTT Facilities has made improvements in the efficiency of battery maintenance by developing and introducing a battery management system and various maintenance tools based on our abundant maintenance experiences in the field. This paper describes the further improvement of the battery management method based on an analysis of not only a newly found phenomena in VRLA, but also the field data to improve the maintenance efficiency and management accuracy.
Keywords :
battery management systems; lead acid batteries; maintenance engineering; NTT facilities; VRLA battery; battery maintenance; battery management system; Acceleration; Battery charge measurement; Battery management systems; Circuit testing; Computerized monitoring; Degradation; Performance evaluation; Power system management; Temperature dependence; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 2007. INTELEC 2007. 29th International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-1627-1
Electronic_ISBN :
978-1-4244-1628-8
DOI :
10.1109/INTLEC.2007.4448745
