Method and device for insulation monitoring including alarm diagnosis display
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United States of America Patent
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N/A
Issued Date -
Jul 16, 2015
app pub date -
Jan 9, 2015
filing date -
Jan 10, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for processing and displaying insulation resistance values in insulation fault monitoring devices for an IT power supply system includes determining an insulation resistance value in predetermined time intervals, detecting an insulation fault if the determined resistance value falls below a preset limit value, showing an optical alarm message if the insulation fault is present, wherein the determined insulation resistance value is time stamped and stored, the time stamp marked as the alarm time upon detection of the insulation fault, after determining and storing n insulation resistance values following the alarm time, a number n of the insulation resistance values determined prior to the alarm time, the insulation resistance value determined at the alarm time and a number n of the insulation resistance values determined after the alarm time are copied into a cache and graphically displayed. An insulation monitoring device for an IT power supply system is also described
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