| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 11/21/2007 | CN100350532C Main switch conveying apparatus for vacuum circuit breaker |
| 11/21/2007 | CN100350527C Low-voltage circuit breaker with electric arc extinction system |
| 11/20/2007 | CA2378120C Electrical switchgear with synchronous control system and actuator |
| 11/15/2007 | WO2007128831A1 Power switch, especially high-current switch |
| 11/15/2007 | WO2007128819A2 Method for the production of copper-chromium contacts for vacuum switches, and associated switching contacts |
| 11/15/2007 | WO2007128814A1 Power switch, especially high-current switch |
| 11/15/2007 | US20070262654 Load control device for use with lighting circuits having three-way switches |
| 11/15/2007 | US20070262055 Alternator disconnector circuit-breaker actuated by a servomotor |
| 11/15/2007 | US20070262054 Switchgear |
| 11/15/2007 | US20070262053 Puffer-Type Gas Blast Circuit Breaker |
| 11/15/2007 | DE102006021772A1 Verfahren zur Herstellung von Kupfer-Chrom-Kontakten für Vakuumschalter und zugehörige Schaltkontakte A process for producing copper-chromium contacts for vacuum switches and associated switch contacts |
| 11/15/2007 | CA2652047A1 Power switch, especially high-current switch |
| 11/14/2007 | EP1855300A2 Circuit-breaker disconnecting switch of an alternator activated by a servomotor |
| 11/14/2007 | EP1854116A1 Switching device with a heat tube |
| 11/14/2007 | EP1854113A1 An apparatus and a method for predicting a fault current |
| 11/14/2007 | CN200976330Y Outdoor single simulation 3-core lock |
| 11/14/2007 | CN200976315Y Outdoor dual-analog 3-core lock |
| 11/14/2007 | CN101073132A Polyphase switching device comprising at least three similarinterrupter units |
| 11/14/2007 | CN101071696A Low-voltage intelligent vacuum circuit breaker |
| 11/14/2007 | CN101071695A Outdoor high-voltage open combined electri cappliance |
| 11/14/2007 | CN100349235C Manual tripping device for magnetic operating mechanism |
| 11/13/2007 | CA2255391C Disconnect feature for interrupter |
| 11/13/2007 | CA2242066C Rotary contact assembly for high ampere-rated circuit breakers |
| 11/08/2007 | DE102006033422B3 Vacuum switching tube for load diverter of on-load tap changer, has upper/lower resistance contact plungers axially movable and electrical conductively guided to other plungers, where contact plungers are operated by respective plungers |
| 11/08/2007 | DE10064525B4 Mittelspannungsschalteinrichtung Medium voltage switchgear |
| 11/07/2007 | CN200972841Y Reducing case for spring operation mechanism of high voltage breaker |
| 11/07/2007 | CN200972840Y Operation mechanism for linear electric machine of high voltage breaker |
| 11/07/2007 | CN101067988A Spring operating mechanism |
| 11/07/2007 | CN101067987A Permanent magnetic operating mechanism of AC contactor and vacuum circuit breaker |
| 11/07/2007 | CN100347799C 真空开关装置 Vacuum switchgear |
| 11/01/2007 | WO2007122064A1 Interrupter unit of an electrical switching device |
| 11/01/2007 | WO2007121938A1 Method for the production of a contact piece, and contact piece for low-voltage, medium-voltage, high-voltage, and generator switchgear |
| 10/31/2007 | EP1849168A1 Switching resistor for an electric switching device |
| 10/31/2007 | EP1192630B1 Electric switching device |
| 10/31/2007 | CN200969492Y Load switch operation mechanism for metal closed switch cabinet |
| 10/31/2007 | CN200969314Y Outdoor high-voltage duplicate power supply vacuum circuit breaker |
| 10/31/2007 | CN200969313Y Vacuum circuit breaker with isolation switch |
| 10/31/2007 | CN200969312Y Combined electrical equipment of high-voltage vacuum switch with fuse |
| 10/31/2007 | CN200969311Y Spring operating mechanism for longitudinal arrangement of high-voltage breaker |
| 10/31/2007 | CN200969310Y Hydraulic operation structure of high-voltage breaker |
| 10/31/2007 | CN101064226A Air blowing breaker |
| 10/25/2007 | US20070247006 Charge limited high voltage switch circuits |
| 10/25/2007 | US20070246444 Contact system for an electrical switching device |
| 10/25/2007 | DE102006019383A1 Unterbrechereinheit eines elektrischen Schaltgerätes The interrupter unit of an electrical switching device, |
| 10/24/2007 | EP1848019A1 Procedure for manufacturing an electric contact and according contact for low-, medium-, high- and generator-switches |
| 10/24/2007 | CN200965854Y Combination electrical loop net cabinet low energy consumption permanent magnet trip coil overcurrent protective mechanism |
| 10/24/2007 | CN200965852Y Vacuum breaker cabinet open/close position mechanical indicating device |
| 10/24/2007 | CN200965845Y HV breaker compact spring operating mechanism |
| 10/24/2007 | CN200965844Y HV breaker spring operating mechanism |
| 10/24/2007 | CN101060044A A 252kV single-break vacuum interrupter |
| 10/24/2007 | CN100345235C Vacuum switchgear system |
| 10/24/2007 | CN100345234C Electric operating equipment for double isolating switch |
| 10/24/2007 | CN100345233C Switch |
| 10/24/2007 | CN100344777C Preparation of copper-chromium alloy contact material by aluminothermal reduction-electromagnetic casting process |
| 10/23/2007 | US7285743 Shielded encapsulated vacuum interrupter |
| 10/23/2007 | US7285742 Switching device |
| 10/18/2007 | WO2007116661A1 Switchgear and method for manufacturing same |
| 10/18/2007 | WO2007116516A1 Electromagnetic operating device for switch |
| 10/18/2007 | WO2002080211A3 System for blocking a switch control device |
| 10/18/2007 | US20070241081 Slot motor and circuit breaker including the same |
| 10/18/2007 | US20070241080 Vacuum switchgear assembly and system |
| 10/18/2007 | US20070241079 High voltage circuit breaker with re-fill valve |
| 10/18/2007 | DE102006017131A1 Dreistellungsschalter insbesondere für eine Mittel- oder Hochspannungsschaltanlage Three position switch, in particular for a medium or high voltage switchgear |
| 10/18/2007 | DE102006004182B3 Leistungswandler mit einer Schalteinrichtung Power converter with a switching device |
| 10/17/2007 | EP1845540A2 Three-position switch in particular for middle- or high voltage switchgear |
| 10/17/2007 | EP1845534A1 Switching resistance for a high voltage switch |
| 10/17/2007 | EP1844486A1 Method for producing a contact piece, and corresponding contact piece for a vacuum interrupter chamber |
| 10/17/2007 | EP1595269A4 Axial magnetic field vacuum fault interrupter |
| 10/17/2007 | CN200962395Y Installation tool of pull pole component of the high-voltage vacuum breaker |
| 10/17/2007 | CN200962394Y Dual power switching mechanical interlock device of middle voltage shift on switch case |
| 10/17/2007 | CN200962393Y Dual stabilized permanent magnetic operation structure controlled by the dual coil |
| 10/17/2007 | CN200962392Y Compound load switch combined electrical appliance with the emergent buckle release device |
| 10/17/2007 | CN101055815A Vacuum switch with the dual operation machine |
| 10/17/2007 | CN101055814A High voltage vacuum breaker |
| 10/17/2007 | CN101055813A Three-position switch especially used for meddle voltage or high voltage switch device |
| 10/17/2007 | CN101055807A AC contactor bar arc-quenching chamber with the double arc slice |
| 10/17/2007 | CN100343933C Joint structure of metal and ceramics and vacuum switch using the structure |
| 10/11/2007 | WO2007113089A1 Insulating switching rod with a contact pressure arrangement comprising a plurality of helical compression springs wound in opposite senses |
| 10/11/2007 | WO2007113006A1 Electromagnetic actuator, in particular for a medium-voltage switch |
| 10/11/2007 | WO2007112605A1 Switching chamber of a high-voltage breaker having a heating volume of variable size |
| 10/11/2007 | WO2007089311A3 Vacuum-type electrical switching apparatus |
| 10/11/2007 | US20070235415 Vacuum Switch Chamber with a Protective Sleeve That is Applied by Heat Shrinking |
| 10/11/2007 | DE102006016723A1 Lichtbogenkontaktstift Arcing contact pin |
| 10/11/2007 | DE102006014286A1 Unterbrechereinheit mit Einschaltwiderstand Interrupter unit with on-resistance |
| 10/11/2007 | DE10027714B4 Betätigungsvorrichtung für Schalter zur Umpolung hoher elektrischer Gleichströme Actuator for switch for reversing high electrical DC currents |
| 10/10/2007 | EP1843376A1 Switching chamber of a high voltage switch with a variable heating volume |
| 10/10/2007 | EP1843375A1 Electromagnetic actuator for medium voltage circuit breaker |
| 10/10/2007 | EP1843374A2 Arcing contact |
| 10/10/2007 | EP1843365A2 Actuating rod assembly with an actuating rod |
| 10/10/2007 | CN200959310Y Operator for high-voltage switch |
| 10/10/2007 | CN200959309Y High-breaking rare-earth permanent-magnetic vacuum breaker |
| 10/10/2007 | CN200959308Y High-breaking rare-earth permanent-magnetic vacuum breaker |
| 10/10/2007 | CN200959307Y Polar pillar structure of high-voltage vacuum circuit breaker |
| 10/10/2007 | CN200959306Y Spring operating mechanism |
| 10/10/2007 | CN200959291Y Double-power supply mechanical interlocking device of medium-voltage fixed switch cabinet |
| 10/10/2007 | CN200959287Y Switch-changeover electric appliances |
| 10/10/2007 | CN200959286Y Automatically-converting switch electric appliances |
| 10/10/2007 | CN101053051A Electrical switchgear |
| 10/10/2007 | CN101052746A Corresponding shield parts for manufacturing fire-proof and anti-corrosion coating and for vacuum switch-box |
| 10/10/2007 | CN101051577A High energy vacuum CROWBAR switch based on high permitivity planar flashover |