Invention Grant
- Patent Title: GFCI test monitor circuit
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Application No.: US15441577Application Date: 2017-02-24
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Publication No.: US10468866B2Publication Date: 2019-11-05
- Inventor: Stephen Paul Simonin
- Applicant: Hubbell Incorporated
- Applicant Address: US CT Shelton
- Assignee: Hubbell Incorporated
- Current Assignee: Hubbell Incorporated
- Current Assignee Address: US CT Shelton
- Agency: Michael Best & Friedrich, LLP
- Main IPC: H02H1/00
- IPC: H02H1/00 ; H02H3/33 ; H02H3/02

Abstract:
A circuit interrupting device including a fault detection circuit and an auto-monitoring circuit. The fault detection circuit is configured to detect a fault condition of the circuit interrupting device, and output a fault detection signal in response to detecting the fault condition. Wherein the fault detection signal is configured to place the circuit interrupting device in a tripped condition. The fault detection circuit is further configured to output a pre-trigger signal, wherein the pre-trigger signal is configured to not place the circuit interrupting device in the tripped condition. The auto-monitoring circuit is configured to monitor an auto-monitoring input signal, wherein the value of the auto-monitoring signal is at least partially determined by a value of a pre-trigger signal generated.
Public/Granted literature
- US20170170643A1 GFCI TEST MONITOR CIRCUIT Public/Granted day:2017-06-15
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