[특허]Intelligent ground fault circuit interrupter

Intelligent ground fault circuit interrupter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02H-003/28
출원번호	US-0790037 (1997-01-28)
발명자 / 주소	Neiger Benjamin Gershen Bernard Rosenbaum Saul
출원인 / 주소	Leviton Manufacturing Co., Inc.
대리인 / 주소	Sutton
인용정보	피인용 횟수 : 107 인용 특허 : 0

초록 ▼

An intelligent circuit interrupt system is electrically connected between an AC source and a load for interrupting a flow of AC from the source to the load upon detection of an interrupt condition. A circuit interrupter electrically connected to phase and neutral terminals of the AC source defines the interrupt condition. A relay switch with a relay coil and phase and neutral contacts is included such that line and load ends of the phase contact are electrically connected, respectively, between the interrupt means load side phase port and a phase terminal of the load. Line and load ends of the neutral contact are electrically connected, respectively, between the interrupt neutral port and a neutral terminal of the load. The relay coil is electrically coupled between load sides of said phase and neutral contacts for controlling the contacts in response to the interrupt signal. An open-contact miswiring detector (OCMD) is electrically connected to one of the phase and neutral contacts for detecting a miswiring condition when the contacts are in an open state, and a closed-contact miswiring detector (CCMD) is electrically connected to the OCMD and to one of the neutral and phase contacts for detecting a miswiring condition when the contacts are in a closed state. A timing signal generator generates system timing signals. A test circuit electrically coupled to the interrupt means and the timing signal generator tests the interrupt means operability. An alarm circuit is electrically responsive to the test circuit, the timing signal generator, the OCMD and the CCMD for communicating an open-contact miswiring condition, a closed-contact miswiring condition, an operational failure condition, and a need for external testing condition. A power supply is electrically connected between the load ends of the phase and neutral contacts, and to the timing signal generator.

대표청구항 ▼

[ What is claimed is:] [1.] An intelligent circuit interrupt system electrically connected between an AC source and a load for interrupting a flow of AC power from said source to said load upon detection of an interrupt condition, comprisinga) circuit interrupt means including line and load side phase and neutral ports, wherein said line side phase and neutral ports are electrically connected, respectively, to phase and neutral terminals of said AC source and said circuit interrupt means generates an interrupt signal for interrupting said AC flow at detection of said interupt condition;b) an electrical load having a load phase terminal and a load neutral terminal;c) a relay switch including a relay coil and phase and neutral contacts wherein when said phase and neutral contacts are in a first position connect said load side phase and neutral ports of said circuit interrupt means to said load phase and neutral terminals, respectively, and when in a second position disconnect said load side phase and neutral ports of said circuit interrupt means from said load phase and neutral terminals;d) control means coupled to said circuit interrupt means to receive said interrupt signal and produce a first control signal;e) said relay coil coupled to said control means to move said phase and neutral contacts to said second position upon the receipt of said first control signal;f) a timing circuit to produce a 1 HR signal every hour and a 2 HR signal every two hours;g) detector means coupled to said AC source for producing a second control signal at a predetermined phase angle of the AC source wave;h) test means coupled to said timing current to receive said 1 HR signal and to said detector means to receive said second control signal to produce a first test signal; andi) said test means further coupled to said control means to cause said control means to produce said first control signal in response to said first test signal; whereby current from said AC source is permitted to flow in said control means and said relay coil without the operation of said circuit interrupt means in order to test the proper operation of said control means and said relay coil.

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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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Intelligent ground fault circuit interrupter 원문보기

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Intelligent ground fault circuit interrupter 원문보기

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