Digital circuit interrupter with an improved sampling algorithm

Details Digital circuit interrupter with an improved sampling algorithm Digital circuit interrupter with an improved sampling algorithm

1991-03-11

1992-10-27

Stephan, Steven L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 97, 364483, H02H 300

Patent

active

051595192

ABSTRACT:
A digital circuit interrupter having a keypad and display for entering and viewing the trip parameters utilizes a sampling algorithm to periodically sample the current within a protected circuit. The sampling algorithm allows a real time constant sampling interval independent of wide variations in the power system frequency.

REFERENCES:
patent: 4319329 (1982-03-01), Girgis
patent: 4589052 (1986-05-01), Dougherty
patent: 4672501 (1987-06-01), Bilac et al.
patent: 4728914 (1988-03-01), Morris et al.
patent: 4754247 (1988-06-01), Raymont et al.
patent: 4804916 (1989-02-01), Frank
patent: 4870531 (1989-09-01), Danek
patent: 4991042 (1991-02-01), Tokarski et al.

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