Title :
Development of on-line battery testing technology
Author :
Kozuka, Katsuhiko ; Takano, Kazuo ; Konya, Yoshitaka ; Kawagoe, Yuji
Author_Institution :
NTT Power & Building Facilities Inc., Tokyo, Japan
Abstract :
The business activities of NTT Power and Building Facilities Inc. (NTT-F) consists of engineering and management for NTT´s telecommunications system. A maintenance work related to batteries occupies about 1/4 of the entire telecommunications power system maintenance work. Moreover, a large number of valve regulated lead acid (VRLA) batteries have been installed and maintenance work of these batteries will increase in the future. To reduce this maintenance work, NTT-F has developed technology to evaluate the condition of a battery by discharging under a real load condition and to measure deterioration simply by measuring internal resistance of a single cell. NTT-F is scheduled to improve the efficiency of battery maintenance work by systematically using this technology
Keywords :
electric resistance measurement; lead; maintenance engineering; secondary cells; telecommunication power supplies; testing; NTT Power and Building Facilities Incorporated; NTT´s telecommunications system; Pb; Pb-acid valve regulated batteries; battery condition evaluation; battery maintenance; efficiency improvement; internal resistance measurement; management; on-line battery testing technology; real load condition discharge; valve regulated lead acid batteries; Automatic testing; Battery charge measurement; Circuit testing; Electrical resistance measurement; Inspection; Life testing; Power measurement; Rectifiers; System testing; Voltage measurement;
Conference_Titel :
Telecommunications Energy Conference, 1997. INTELEC 97., 19th International
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3996-7
DOI :
10.1109/INTLEC.1997.645917
