子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | POWER DISTRIBUTION SYSTEMS AND METHODS OF OPERATING A POWER DISTRIBUTION SYSTEM INCLUDING ARC FLASH DETECTION | US13734431 | 2013-01-04 | US20140192458A1 | 2014-07-10 | Marcelo Esteban Valdes |
| An arc flash relay system is described for use in a power distribution system including an arc flash sensor, a first circuit protection device, and a second circuit protection device. The arc flash relay system includes a first input configured to receive a detection signal from the arc flash sensor, a second input configured to receive a blocking signal from the first circuit protection device, and a controller. The controller is configured to determine that an arc flash has occurred based, at least in part, on the detection signal. The controller activates the second circuit protection device in response to the determination that an arc flash has occurred when the controller is not receiving the blocking signal, and delays activation of the second circuit protection device in response to the determination that an arc flash has occurred when the controller is receiving the blocking signal. | ||||||
| 62 | RECLOSER DEVICE AND METHOD OF OPERATION | US13529218 | 2012-06-21 | US20120327545A1 | 2012-12-27 | John Witte |
| A device for interrupting the flow of electrical power in an electrical distribution system is provided. The device includes a sensor operably coupled to the electrical distribution system. A switching mechanism is coupled to the electrical distribution system, the switching mechanism movable between an open position and a closed position. A controller operably coupled to the sensor and the switching mechanism, the controller having a processor that is responsive to executable computer instructions when executed on the processor incrementing a first counter in a first mode of operation and a second counter in a second mode of operation. Wherein the processor is further responsive to executable computer instructions for switching from the first mode to the second mode in response to a signal from the sensor. | ||||||
| 63 | CIRCUIT BREAKER | US13433273 | 2012-03-28 | US20120181157A1 | 2012-07-19 | Jiasheng WAN |
| A built-in intelligent circuit breaker with an automatic closing function, including a box body and a bearing plate. Inside the box body is provided a circuit breaker actuating mechanism, a wire inlet end, and a wire outlet end. The circuit breaker actuating mechanism is triggered by a poke rod positioned in the box body. The bearing plate is positioned in the box body and combined with an electrical operating mechanism. The electrical operating mechanism is provided with an execution end, and the execution end is connected with the poke rod, such that the circuit breaker actuating mechanism is triggered by the poke rod to realize the on/off of the circuit breaker during the operation of the electrical operating mechanism under the control of an automatic closing control unit. | ||||||
| 64 | ELECTRONIC CIRCUIT BREAKER | US13329665 | 2011-12-19 | US20120113557A1 | 2012-05-10 | GÜNTER HENGELEIN; WOLFGANG SCHMIDT |
| A compact electronic circuit breaker is simple to assemble. The circuit breaker has an insulating housing, a switch contact for reversibly contacting a load power circuit to be monitored, a triggering magnet acting by way of a triggering mechanism on the switch contact, and triggering electronics for actuating the triggering magnet. The switch contact, the triggering magnet, and the triggering electronics are fixedly mounted on a printed circuit board and they form a preassembled component together with the printed circuit board. The preassembled component can thereby be inserted in the housing as a unit. | ||||||
| 65 | Circuit breaker with electronic sensing and de-latch activation | US12350997 | 2009-01-09 | US08134428B2 | 2012-03-13 | Russell T. Watford; Kevin Miller |
| A circuit breaker and method includes a mechanical pole moveable between a latched position and an unlatched position to open an electrical connection between a pair of electrical contacts. An electronic tripping device is configured to respond to a sensor signal. The sensor signal is output from a condition sensor wherein upon receiving the sensor signal the electronic tripping device trips the mechanical pole into the unlatched position. | ||||||
| 66 | Circuit Breaker with Electronic Sensing and De-Latch Activation | US12350997 | 2009-01-09 | US20090174508A1 | 2009-07-09 | Russell T. Watford; Kevin Miller |
| A circuit breaker and method includes a mechanical pole moveable between a latched position and an unlatched position to open an electrical connection between a pair of electrical contacts. An electronic tripping device is configured to respond to a sensor signal. The sensor signal is output from a condition sensor wherein upon receiving the sensor signal the electronic tripping device trips the mechanical pole into the unlatched position. | ||||||
| 67 | Annunciator with internal tachometer | US10289299 | 2002-11-06 | USRE38656E1 | 2004-11-23 | Walter R. Berger; Randol W. Read |
| An annunciator device that utilizes a microprocessor allows for the inclusion of a tachometer or an hourmeter-tachometer, functions that typically require external instruments. A display circuit sequentially provides a digital readout indicative of a fault condition, engine speed and elapsed run time. The system draws sufficiently low current to be powered from a CD ignition or magnetic pickup power supply and backup battery. An annunciator device that allows for the inclusion of a tachometer, or a tachometer and an hourmeter, eliminates a great deal of cost by reducing instrument count, customer wiring, and overall instrument panel size. | ||||||
| 68 | Safety electrical assembly for electric power equipment | US443390 | 1995-05-17 | US5485339A | 1996-01-16 | Jacques Dufresne |
| In an electric power equipment connected to an electrical power source, a defective ground conductor may result in a dangerous situation for a user. To prevent such a situation, the electric power equipment is provided with a safety electrical assembly having a safety switch mounted between the neutral conductor and the ground conductor on the electric power equipment. The safety electrical assembly also has a female plug provided with a ground socket connected to the ground wire of the power source, a neutral socket not connected to the neutral were of the power source, and one or two power sockets connected to one or two corresponding power wires of the power source. The female plug also has a relay having a normally open switch mounted in series with one of the power wires and a control coil mounted between the one power wire and the neutral socket, and a first light indicator mounted between a stationary contact of the relay and the ground wire in such a manner so as to be visible to the user. | ||||||
| 69 | Electrostatic protection device | US3509470D | 1968-03-27 | US3509470A | 1970-04-28 | DROPPA CYRIL; NEUBER RALPH E |
| 70 | Overload limiting means for electric circuits | US74368547 | 1947-04-24 | US2607029A | 1952-08-12 | FRITZ KESSELRING |
| 71 | WIDE RANGE CURRENT MONITORING SYSTEM AND METHOD FOR ELECTRONIC TRIP UNITS | EP16760872.8 | 2016-08-26 | EP3345272A1 | 2018-07-11 | MILLER, Theodore J.; HOSKO, Daniel A.; GAO, George |
| A circuit interrupter that includes a passive integration channel structured to receive an output signal from a di/dt current sensor and generate a first signal output based on the output signal, and an active integration channel structured to receive the output signal from the di/dt current sensor and generate a second signal output based on the output signal that is proportional to the primary current received by the di/dt current sensor. Circuit protection functionality is provided based on the first signal output responsive to the primary current being determined to be greater than a threshold level, current metering and circuit protection functionality is provided based on the second signal output responsive to the primary current being determined to be less than or equal to the threshold level, and a seed current value is provided to the active integrator based on the first signal output. | ||||||
| 72 | STRUCTURE OF CROSSBAR FOR MANUAL MOTOR STARTER | EP15202416.2 | 2015-12-23 | EP3051569B1 | 2018-02-28 | CHO, Hyungeun |
| The present disclosure relates to a structure of a crossbar 20 for a manual motor starter, MMS, 100 in which a function of an auxiliary lever (2) is performed by the crossbar to thus reduce the number of components and operational errors. The crossbar 20 is connected to an operating mechanism (10) and an auxiliary contact lever 30 operates an auxiliary contact 40, wherein a pressing unit 25 is formed in the crossbar 20 to operate the auxiliary contact lever 30 upwardly. | ||||||
| 73 | SINGLE-CHANNEL SAFETY OUTPUT | EP17150163.8 | 2010-04-30 | EP3174082A1 | 2017-05-31 | LORENZ, Dirk; MACHULETZ, Norbert; HELPENSTEIN, Thomas; PAPENBREER, Rudolf |
The present invention relates to a safety switching device for fail-safely switching on and off an electrical load, and to a system comprising at least two safety switching devices which interact in a fail-safe manner via a single-channel. The safety switching device comprises a fail-safe control unit; a first and a second electronic switching element; at least one input terminal for receiving a first switching signal that causes a switching of said switching elements, and a clocked output terminal (L11) for connecting said safety switching device to a second safety switching device (104). The clocked output terminal provides a clocked signal (108) depending on the first switching signal and being monitored by said control unit for performing a cross fault detection, wherein said clocked output terminal (L11) is further adapted to provide power to said second safety switching device (104), wherein said clocked signal (108) comprises a train of pulses indicative of a true safety status of the safety switching device, said clocked output terminal (L11) outputs a constant 0 V signal, if the safety status of the safety switching device indicates a fault, and wherein the clocked signal (108) differs from all other clocked signals present in the safety switching device.
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| 74 | PROTECTION RELAY APPARATUS | EP11806503 | 2011-02-04 | EP2595264A4 | 2014-11-26 | OTOMO YU; OHNO HIROFUMI |
| 75 | Single-channel safety output | EP10161647.2 | 2010-04-30 | EP2383762B1 | 2013-09-11 | Lorenz, Dirk; Machuletz, Norbert; Papenbreer, Rudolf; Helpenstein, Thomas |
| The present invention relates to a safety switching device (102) for fail-safely switching on and off an electrical load, and to a system comprising at least two safety switching devices (102,104) which interact in a fail-safe manner via a single-channel (106). The safety switching device (102) comprises a fail-safe control unit, a first and a second electronic switching element connected with a first and a second output terminal (14,24); and at least one input terminal for receiving a first switching signal that causes a switching of said switching elements. Said first and second switching elements each comprise an output which provides depending on the first switching signal an output signal having a first or second potential. A third output terminal (L11) connects said safety switching device (102) to a second safety switching device (104), providing a clocked signal (108) depending on the first switching signal and being monitored by said control unit for performing a cross fault detection. | ||||||
| 76 | PROTECTION RELAY APPARATUS | EP11806503.6 | 2011-02-04 | EP2595264A1 | 2013-05-22 | OTOMO, Yu; OHNO, Hirofumi |
This invention provides a protection relay (1) that protects the power transmission lines of a three-phase AC power system (20). In response to detection of a fault, the protection relay (1) opens a CB (4a) of the fault phase for which the fault has occurred. After opening the CB (4a), the protection relay (1) determines, on the basis of a voltage measurement value (VL) of the fault phase detected by a VT (3), whether the fault has been eliminated. If having determined that the fault has been eliminated, the protection relay (1) closes the CB (4a) again. |
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| 77 | Als Anschlussstecker ausgebildetes FI-Schutzschaltgerät | EP85100833.4 | 1985-01-28 | EP0189493A1 | 1986-08-06 | Flohr, Peter; Barucha, Heinrich |
Das als Anschlußstecker (1, 2) für einen elektrischen Verbraucher ausgebildete Fehlerstrom-Schutzschaitgerät basiert auf einer von Hand mittels Druckknopf (7) über eine Schaltmechanik (6) allpolig zu betätigenden und durch eine elektronische Differenzstrom- und Unterspannungsüberwachung (9) elektromagnetisch auslösbaren Schahkontaktanordnung (3). Für die zusätzliche Kontrollmöglichkeit des Schutzleiters der stationären installation ist dessen Anschluß im Gerät in Gegenrichtung zu dem Phasen- und Neutralleiter durch den Summenstromwandler (4) geführt. Außerdem wird der Prüfstromkreis durch Betätigen der Prüftaste (11) simultan von dem Phasen- und Neutralleiter mit Kleinspannung gegen den Schutzleiter betrieben. |
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| 78 | 고전압 전원장치 및 전기집진장치용 절환장치 | KR1020140194465 | 2014-12-30 | KR101594264B1 | 2016-02-15 | 황광호; 김해중; 김효언; 한병욱 |
| 고전압전원장치및 전기집진장치용절환장치에관한기술이개시된다. 본발명에따른고전압전원장치는고전압을발생시키는고전압발생부, 상기고전압발생부에결합되는출력부싱, 상기출력부싱을내부에수용하도록상기고전압발생부에결합되는부싱커버, 상기부싱커버및 상기고전압발생부로부터제공되는고전압을이용하여동작하는대상물사이에설치되는접지절환케이스, 일측이상기출력부싱에연결되고타측이상기접지절환케이스의내부에위치하는제1통전부, 일측이상기대상물에연결되고타측이상기제1통전부로부터이격된위치에서상기접지절환케이스의내부에위치하는제2통전부, 접지를위해상기접지절환케이스의내부에설치되는접지부, 및상기제1통전부와상기제2통전부각각에접속되어서상기대상물에고전압을인가하는인가모드및 상기제1통전부와상기제2통전부간의연결을해제하고상기접지부에접속되어서고전압을차단하는차단모드간에운전모드를절환하기위한절환부를포함할수 있다. | ||||||
| 79 | 부하 자동 감지 기능이 있는 대기 전력 차단 장치, 이를 갖는 전원 콘센트 및 전원 코드 플러그 | KR1020090105332 | 2009-11-03 | KR100950285B1 | 2010-03-31 | 손창관 |
| PURPOSE: A standby power cut-off device with automatic load sensing function, a power outlet with the same, and a power cord plug with the same are provided to prevent human victims and fire due to the electric shock, electric short, and heat generation through a power outlet or a power cord plug. CONSTITUTION: A standby power cut-off device with automatic load sensing function includes a power conversion unit, a relay(20), a load sensing unit(30), a control unit(70), and a relay output unit(80). The power conversion unit converts AC power into DC power. The relay supplies AC power to an output terminal. The load sensing unit senses at least one among load non connection state, human body contact state, load connection state, and short state depending on a resistance value. The control unit turns on or off the relay according to the decision of the load sensing unit. The relay output unit activates the relay depending on the control of the control unit. | ||||||
| 80 | 누전차단기 시험기기 | KR1020060088459 | 2006-09-13 | KR100810503B1 | 2008-03-07 | 황윤길 |
| A circuit breaker test device is provided to select a database according to the kinds of a circuit breaker and to carry out a precise driving point test and a test for discriminating the passing state of test items, selectively. A circuit breaker test device is composed of a display unit(1) outputting the test setting and a result of a circuit breaker(100); a power applying unit(2); a sine wave generator(7) connected to an input stage and a load stage of the circuit breaker to input test current in test rated voltage; a sensing unit(6) detecting the tripping state of the circuit breaker by a trip sensor, by sensing the output of the sine wave generator and detecting current by a current sensor in driving; an operation unit(4) having a measurement set switch; and a control unit(3) controlling the test device according to an input signal of the operation unit. The circuit breaker test device precisely measures the trip current and trip time by automatically controlling the output of the sine wave generator. | ||||||
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