[특허]Ground fault circuit interrupter incorporating miswiring prevention circuitry

Ground fault circuit interrupter incorporating miswiring prevention circuitry 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02H-003/28
출원번호	US-0089149 (1993-07-08)
발명자 / 주소	Neiger Benjamin (Floral Park NY) Rosenbaum Saul (East Meadow NY) Gershen Bernard (Centerport NY)
출원인 / 주소	Leviton Manufacturing Co., Inc. (Little Neck NY 02)
인용정보	피인용 횟수 : 98 인용 특허 : 0

초록 ▼

A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.

대표청구항 ▼

A ground fault circuit interrupter device electrically connected between a source of electrical power and a load for interrupting a flow of electrical current from said source of electrical power to said load when a ground fault condition is present comprising: a. a first selectively operable switch means in a hot line leading from said power source to said load, said first switch means operable in a first condition to permit the flow of current from said power source to said load in said hot line and operable in a second condition to prevent the flow of current in said hot line from said power source to said load; b. a second selectively operable switch means in a neutral line leading from said power source to said load, said second switch means operable in a first condition to permit the flow of current from said power source to said load in said neutral line and operable in a second condition to prevent the flow of current in said neutral line from said power source to said load; c. ground fault detection means coupled between said hot line and said neutral line on a line side of said first and second operable switching means to detect ground faults and produce a first output signal indicative of the detection of a ground fault condition; d. connecting means interposed between said ground fault detection means and said first and second selectively operable switch means; wherein an absence of said first output signal from said ground fault detector means permits said first and second switch means to remain in their first condition and a presence of said first output signal from said ground fault detector means causes said first and second selectively operable switch means to switch to their second condition to prevent the flow of current; and e. alarm means coupled between said hot line and said neutral line for automatically producing an alarm signal in the event of a miswiring condition.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Ground fault circuit interrupter incorporating miswiring prevention circuitry 원문보기

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Ground fault circuit interrupter incorporating miswiring prevention circuitry 원문보기

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이 특허를 인용한 특허 (98)

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