| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Shorting switch and system to eliminate arcing faults in power distribution equipment | US10172651 | 2002-06-14 | US06657150B1 | 2003-12-02 | John J. Shea; Jeffrey A. Miller |
| A shorting switch includes a vacuum switch having fixed and movable contact assemblies and a driven member. A spring cover tube and bushing mount the driven member for linear movement along a path substantially parallel to a longitudinal axis of the movable contact assembly. The driven member moves the movable contact assembly between open and closed circuit positions. A compression spring has a compressed state and a released state, which moves the driven member and movable contact assembly to the closed circuit position. A release bolt has an opening therein and is coupled to the driven member to normally maintain the compression spring in the compressed state. A charge is disposed in the opening of the release bolt and is actuated to fracture the release bolt and release the compression spring to the released state. First and second terminals are respectively electrically interconnected with the fixed and movable contact assemblies. | ||||||
| 102 | Protection system for protecting a poly-phase distribution transformer insulated in a liquid dielectric, the system including at least one phase disconnector switch | US10274406 | 2002-10-21 | US20030086218A1 | 2003-05-08 | Philippe Folliot; Stephane Melquiond; Francois Hebert; Patrice Grave |
| The distribution transformer is installed in a station having N phases, at least N-1 phases being equipped on the high-voltage side of the transformer with respective current-limiting fuses capable of blowing in the event of a dead short circuit between the phases. The protection system comprises: at least one fault detector for detecting faults on the basis of at least one of the following indicators: pressure in the tank, level of the dielectric, or temperature of the transformer; a short-circuiter acting on all the phases situated upstream from the high-voltage windings, said short-circuiter being capable of being triggered by said fault detector to establish a dead short circuit between the phases; and on at least N-1 phases, a detector for detecting an abnormal current upstream from the transformer, said detector being associated with control means for controlling said short-circuiter. In the system, at least the phase that is not equipped with a limiting fuse is equipped with a disconnector switch which is normally closed in the absence of any fault, said disconnector switch being disposed on the high-voltage side of the transformer upstream from the short-circuiter, and opening thereof being triggered by the short-circuiter in the event of a fault, but with a certain delay. | ||||||
| 103 | Electric switching device | US09959667 | 2002-02-26 | US06518865B1 | 2003-02-11 | Falah Al-Hosini; Stefan Valdemarsson; Lars Jonsson; Jan-Anders Nygren; Per Larsson |
| An electric switching device for fast closing of a high current in a power network comprising a first electrode (1), a second electrode (2), a movable contact element (3) closing said first and second electrodes, and an operating device. The operating device comprises a helically wound first coil (6) secured to the first electrode. The movable contact element comprises a flange (4) making contact with the coil. A current pulse flowing through the coil forms a repulsive force between the coil and the flange, said repulsive force throwing the movable contact element to the second electrode and completing the closing operation. | ||||||
| 104 | Arcing fault protection system for a switchgear enclosure | US190094 | 1998-11-12 | US6141192A | 2000-10-31 | Ruben D. Garzon |
| An arcing fault protection system for a switchgear enclosure includes a switching device for rapidly diverting current from the source bus of an electrical distribution system in response to the detection of arcing faults in the system. The switching device, which may comprise a mechanical switch, a solid-state switch or hybrid device, quickly diverts current carried on the source bus to effectively extinguish arcing fault currents present in the distribution system, preventing the generation of gases at high pressures and/or temperatures so as to protect the switchgear equipment from damage. | ||||||
| 105 | Arcing fault protection system for a switchgear enclosure | US974254 | 1997-11-19 | US5933308A | 1999-08-03 | Ruben D. Garzon |
| An arcing fault protection system for a switchgear enclosure includes a grounding device for rapidly grounding the source bus of an electrical distribution system in response to the detection of arcing faults in the system. The grounding device, which may comprise a mechanical switch, a solid-state switch or hybrid device, quickly diverts current carried on the source bus to ground to effectively extinguish arcing fault currents present in the distribution system, preventing the generation of gases at hazardous pressures and/or temperatures so as to protect the switchgear equipment from damage and to prevent injury to operating personnel. | ||||||
| 106 | Substation for the distribution of electrical energy protected against arcing faults | US444620 | 1995-05-19 | US5650902A | 1997-07-22 | Manfred Herkenrath; Paul Wey; Ferenc Boros; Dietrich Stade; Holger Schau |
| Substation for the distribution of electrical energy, and protected against arcing faults, characterized by the fact that Hall-effect sensors and additional optical fiber conductors are provided as sensors, whereby the Hall-effect sensors are logically AND linked with the optical fiber conductors. | ||||||
| 107 | Electro-thermally actuated switch | US397739 | 1995-03-03 | US5510598A | 1996-04-23 | Elias A. Kawam; Terri A. Cardellino |
| A thermally-actuated switch includes a pair of switch contacts openable or closeable in response to a change in the length of a shape memory metal (SMM) rod. The SMM rod is caused to change its length by having its temperature increased by heat produced when electrical power dissipated in a heating element that is coupled in electrical circuit with the switch contacts. To this end, the heating element is thermally coupled to the SMM rod, such as by a common heatsink. Where the switch is to be openable, the heating element is preferably in series circuit with the contacts, and where the contacts are closeable, the heating element is preferably in parallel therewith. | ||||||
| 108 | Method and device for protecting starters from fault currents | US587222 | 1990-09-24 | US5072203A | 1991-12-10 | Gustave E. Heberlein, Jr.; Terrance D. Nelson |
| An apparatus for protecting the fault current intolerant elements of a motor starter circuit or the like is comprised of a protective shunt which bypasses the fault current intolerant elements in response to the detection of high fault currents. The protective shunt is formed of a "U" shaped conductor which flexes in response to the magnetic field created by the flow of the high fault currents through the "U" shaped conductor. Electrical contacts place on one leg of the "U" shaped conductor and on a stationary conductor form a shunting switch which conducts high fault currents around the starter circuitry. In a second embodiment, the stationary conductor is replaced with a flexible conductor which carries an armature. The magnetic armature is attracted by a focussed magnetic field from a magnetic yoke positioned around one leg of the "U" shaped conductor. | ||||||
| 109 | One-time-close relay useful in spacecraft power systems | US513460 | 1990-04-23 | US5025119A | 1991-06-18 | Howard H. Rogers; Jerry J. Herrin |
| A relay (30) has one or both current carrying relay contacts (12, 14) made of a soft, deformable, readily fusible metal, preferably indium, lead, cadmium, bismuth, or tin. When the relay (30) closes, the contacts (12, 14) deform or fuse together, ensuring good electrical conductance and eliminating chatter and accidental opening. The relay (30) is particularly useful in a bypass circuit (54) for a spacecraft battery system (50). | ||||||
| 110 | Safety apparatus for superconducting magnetic energy stored system | US389098 | 1989-08-03 | US4982571A | 1991-01-08 | David Marschik; James R. Logan |
| A self contained, self charging automatic hydraulic activation mechanism (AHAM) for a superconducting energy magnetic storage (SMES) system is disclosed. The AHAM is operatively coupled to arc activated switches disposed across a superconducting coil to automatically close the switches upon a coolant dump. The arc activated switches are also self actuating and close in response to arcing across the switch contacts or across spark gaps provided on the switches. | ||||||
| 111 | Thermally-activated, shorting diode switch having non-operationally-alterable junction path | US585962 | 1984-03-05 | US4774558A | 1988-09-27 | Jerry Herrin |
| The present invention generally provides a thermally-activated, shorting-diode switch whose composite diode structure possesses a non-operationally-alterable junction path, and whose diode shorting is effectuated by temperature-sensitive companion elements. The diode structure includes a semiconductor diode element to which associated first and second lead substructures are both unalterably connected. When activated by the increased temperatures experienced by the diode structure upon conduction, the shorting elements establish a direct, diode-bypass connection between the lead substructures.In a first more-specific embodiment, the shorting mechanism encompasses a solder preform which melts and flows over the diode structure when conduction-interval temperatures are generated. A second more-specific embodiment alternatively employs a temperature-responsive deformation mechanism which upon activation deflects a cantilevered segment of the first lead into diode-bridging contact with a companion segment of the second lead. | ||||||
| 112 | Protector for telecommunication lines | US736172 | 1976-10-27 | US4074337A | 1978-02-14 | George DeBortoli; Detlef Zimmermann |
| A protector for telecommunications lines has an elongated housing with a ground bar extending up one side. End webs extend from the opposite ends of the ground bar across the housing, and a central web extends from the bar also across the housing. A protection device composed of an overcurrent device and an overvoltage device extends between each end web and the center web, the devices on a common axis. In a particular arrangement a ground spring is attached to the ground bar at the side of the housing for connecting with a suitable housing of a protector field in a connector unit. Detent means can be provided to provide for positive partial withdrawal of a protector. | ||||||
| 113 | Circuit interrupter with load side short circuit | US503231 | 1974-09-05 | US3959753A | 1976-05-25 | John A. Wafer |
| A circuit interrupter protective device characterized by a two-level current limiting structure which provides current limiting on the main or supply side of the current limiter to one level of the peak let through current and to a much lower level on the load side which is achieved by activating a short circuit in parallel with the load by closing a set of shunt contacts the instant the current limiter begins to operate while the current limiter remains in the supply circuit to continue opening the circuit and dissipating the energy of an arc in deion plates. | ||||||
| 114 | High speed switch | US40260773 | 1973-10-01 | US3876909A | 1975-04-08 | HALBACH EDWARD A; GAILATIN PAUL M |
| A high speed switch for short-circuiting the electrical output of an alternating current generator or other generator. The shorting switch includes a stationary shorting bar connected to one electrical output line to be shorted. The other output lines to be shorted are respectively connected each to a separate hairpinshaped contact carrier of spring material and having low mass and low bounce characteristics. Each contact carrier is normally engaged by a "contact hold-down means" to hold the respective contact carrier and its associated contact out of conductive engagement with the shorting bar. The contact hold-down means is normally held in its contact hold-down (nonshorting) position by a magnetic detent device. Upon the occurrence of a fault in the electrical output system being protected, a signal is transmitted to the magnetic detent device to reduce the magnetic holding force sufficiently to permit the stored energy of the spring-like contact carriers, aided by an auxiliary spring, to rapidly move the contact hold-down means out of hold-down relation to the spring-like contact carriers, the contact carriers with their respective associated contacts moving into conductive engagement with the shorting bar. Shorting of the output lines instantaneously removes the energy source supplying fault current. In essence, the fault current is "diverted" from the fault to the shorting device. A motor driven relatching device is provided to move the armature which supports the contact holddown means into magnetically latched engagement with the magnetic detent means.
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| 115 | Metal enclosed switchgear with series connected switch means, circuit interrupter means, current responsive means and operating means mounted on door | US56183966 | 1966-06-30 | US3400353A | 1968-09-03 | SCHOCKELT GUENTHER G |
| 116 | Combined protective gap device and by-pass switch for series capacitor installations | US67264367 | 1967-10-03 | US3385941A | 1968-05-28 | MARBURY RALPH E |
| 117 | Automatic short-circuiting device | US25071163 | 1963-01-10 | US3179770A | 1965-04-20 | MARCEL DEMARET |
| 118 | Fusible multi-contact electrical connector | US19800662 | 1962-05-28 | US3146326A | 1964-08-25 | FREDA THORNE BERYL |
| 119 | Electrical device employing stressed column | US79977659 | 1959-03-16 | US3002065A | 1961-09-26 | TOUR JR JOHN LA |
| 120 | Automatic circuit closer for electrical systems | US79470259 | 1959-02-20 | US2918550A | 1959-12-22 | TEDESCO JACK L |
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