Overcurrent detecting method and apparatus

Details Overcurrent detecting method and apparatus Overcurrent detecting method and apparatus

1992-05-27

1994-05-24

Hofsass, Jeffrey A.

Communications: electrical

Condition responsive indicating system

Specific condition

340635, 361 94, 364483, G08B 2100

Patent

active

053152930

ABSTRACT:
In order to detect with high accuracy a current which may adversely affect an electric circuit if continued for an extended time, an apparatus periodically samples an output of a current sensor connected to the circuit and includes a memory storing data of current values regarded as representing overcurrents in consideration of the respective durations thereof. The current values are stored in pairs with time values representing the durations. The sampled value is compared with the current values stored in the memory while duration of the sampled value is compared with the time value paired with that current value.

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