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Field Reliability of D.C. Power Plants for Telecommunication Systems

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2 Author(s)
Grossoni, M. ; SIP Società Italiana per I''Esercizio delle, Telecomunicazioni s.p.a., Roma - Italy ; Rizzi, Luigi

Field reliability data are described with references to 48V/60V 300A power plants, developed by ITALTEL according to specifications of SIP, Italian Telecommunication Operating Company. Each power plant consists of a power distribution system, 60A rectifiers and 25A buck-boost converters, redundant parallel operating with load sharing and selective cut-off of failed unit. The period under examination covers almost 4 years, during which over 200 power plants with more than 600 rectifiers and 700 buck-boost converters have been installed. The methods used for data collection are explained, as well as the statistical instruments used for the comparison of field results and estimated data.

Published in:

Telecommunications Energy Conference, 1987. INTELEC '87. The Ninth International

Date of Conference:

14-17 June 1987

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