Three-phase fuse status indicator
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United States of America Patent
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Nov 16, 1999
Grant Date -
N/A
app pub date -
Mar 10, 1998
filing date -
Mar 10, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
There is disclosed a multi-phase fuse status indicator having a green 'good' and a red 'bad' indicator LED for each line fuse of the respective phases, the current to the LED's being pulsed to cause them to provide a blinking indication. Power used for the logic circuit for the LED's and the LED's themselves and the related heat dissipation is less than 10 watts and is supplied from the power lines connected through the fuses regardless of the fuses' condition. Only two simple conductor connections are required from the fuse status indicator to each fused line of the multi-phase power system.
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