Equipment and method of detecting fuse blown in low voltage outputs in urban transformation center.

摘要

Equipment and method of detecting fuse blown at the outputs of Low Voltage Transformation in urban centers. The method comprises obtaining the current flowing in each phase (R, S, T) of the low voltage side (BT) of a transformer (1) and, if the current in any phase exceeds a current threshold: # - determining the time variation of the specific energy (10) associated with fuses BT (3) in the phases exposed to overcurrents; # - calculating the variation value of the specific fusion energy (11) of the fuse (3 ) of said stages; # - if the specific energy (10) of the fuse of one phase reaches a certain percentage of the value of the specific fusion energy (11), activate a first alarm; # - when a predetermined number of alarms are activated send (7) to a control center (8) a warning signal detection fusion associated fuse.