Instantaneous fault detection circuit method and apparatus

Details Instantaneous fault detection circuit method and apparatus Instantaneous fault detection circuit method and apparatus

2006-03-21

2006-03-21

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S093200

Reexamination Certificate

active

07016174

ABSTRACT:
An algorithmic system for an electronic trip unit is provided whereby reliable instantaneous protection is provided. A multi-algorithmic approach uses an algorithm to detect bolted faults based on a direct comparison of the current and a threshold value, and an additional algorithm to detect current overloads based on a comparison of a peak-to-peak current and an additional current threshold.

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