| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 05/23/2012 | CN101615017B Method for synchronously regulating and controlling high-pressure circuit breaker based on programmable controller |
| 05/23/2012 | CN101527223B High-voltage vacuum breaker |
| 05/23/2012 | CN101483113B Vacuum switchgear |
| 05/23/2012 | CN101359548B Vacuum insulated switch and vacuum insulated switchgear |
| 05/22/2012 | US8183480 Withdrawable device of main circuit for vacuum circuit breaker |
| 05/18/2012 | WO2012063501A1 Gas insulated switching device |
| 05/18/2012 | WO2012062362A1 Improvements in or relating to insulator assemblies |
| 05/17/2012 | US20120120558 Circuit breaker with controlled exhaust |
| 05/17/2012 | US20120118858 Bellows For Use In Vacuum Interrupters |
| 05/16/2012 | EP2452352A1 Vacuum switching tube |
| 05/16/2012 | DE102010043984A1 Vakuumschaltröhre mit einem Röhrenkörper Vacuum interrupter with a tubular body |
| 05/16/2012 | CN202221871U Linear-shaped phase to phase all-solid insulating middle/high voltage switchgear |
| 05/16/2012 | CN202221742U Large power hydraulic actuating mechanism |
| 05/16/2012 | CN202221735U Three-position transmission device for isolating and grounding |
| 05/16/2012 | CN202221734U Low-voltage vacuum circuit breaker |
| 05/16/2012 | CN102460870A Gas insulation apparatus |
| 05/16/2012 | CN102460627A 用于具有三个断路点的开关电器设备的驱动机构 For driving mechanism has three break points switch electrical equipment |
| 05/16/2012 | CN102457020A 气体绝缘真空开关设备 Vacuum gas insulated switchgear |
| 05/16/2012 | CN102456505A Contact assembly for vacuum interrupter |
| 05/16/2012 | CN102456504A 高、低压开关用长寿命真空灭弧室 High and low pressure switch with a long life vacuum interrupter |
| 05/16/2012 | CN101465235B On-pole switch |
| 05/15/2012 | US8178813 Vacuum switch tube |
| 05/15/2012 | US8178812 Insulation of a switchgear device of vacuum cartridge type by insert moulding |
| 05/15/2012 | DE202012003901U1 Lichtbogenlöscheinheit, insbesondere für Gleichstrom-Hochstromschalter Arc extinguisher unit, in particular for direct current, high-current switch |
| 05/15/2012 | DE202012003900U1 Gleichstrom-Hochstromschalter und Schaltordnung mit einem solchen DC high current switches and switching order with such |
| 05/10/2012 | WO2012059980A1 Phase control switching device and closing phase control method |
| 05/10/2012 | US20120112562 Timing power switch |
| 05/10/2012 | CA2815679A1 Phase control switchgear and closing phase control method |
| 05/09/2012 | EP2450930A1 Gas circuit breaker with reset ohmic contact, and method for resetting and tripping same |
| 05/09/2012 | CN202217618U Permanent magnetic operating mechanism with auxiliary electromagnetic circuit |
| 05/09/2012 | CN202217617U Threaded connection structure for conducting rod and contactor seat of vacuum arc extinguish chamber |
| 05/09/2012 | CN202217616U Aerating device used for breaker, and breaker utilizing the same |
| 05/09/2012 | CN102449717A Circuit breaker |
| 05/09/2012 | CN102446655A Gas breaker |
| 05/09/2012 | CN102446654A Cam design method matched with spring operating mechanism based on moving contact switching-on motion characteristic |
| 05/09/2012 | CN102446653A Geographic information system (GIS) high-voltage alternative-current vacuum circuit breaker operating mechanism |
| 05/09/2012 | CN102446652A Vacuum circuit breaker on outdoor post |
| 05/09/2012 | CN102446651A Vacuum arc extinguishing chamber installation cylinder |
| 05/09/2012 | CN102446650A GIS high-voltage alternating-current vacuum breaker |
| 05/09/2012 | CN102446639A Monostable permanent magnetic mechanism with manual separating brake device |
| 05/09/2012 | CN101635224B Manual and electrical integral operating mechanism of 10KV vacuum circuit breaker |
| 05/09/2012 | CN101604585B High-voltage loadbreak switch with enhanced arc suppression |
| 05/09/2012 | CN101557093B Small voltaic arc large current DC switch |
| 05/09/2012 | CN101292318B Dielectric insulation seal for a vacuum tube |
| 05/08/2012 | US8173927 High and medium voltage switch apparatus with two interrupters, having common means for actuating the movable contacts of the interrupters |
| 05/08/2012 | US8173926 Electrical switching device with a thermal release |
| 05/07/2012 | DE202012101543U1 Laststufenschalter OLTC |
| 05/07/2012 | DE202012001599U1 Motorantrieb eines Schaltfeldes einer Mittelspannungsschaltanlage und Schaltfeld einer Mittelspannungsschaltanlage mit einem solchen Motorantrieb Motor drive of a switching field of a medium voltage switchgear and a medium-voltage switchgear panel with such a motor drive |
| 05/03/2012 | WO2012055923A1 Electrical apparatus in a metal case said apparatus comprising at least one corona-shield cap ensuring convective exchange |
| 05/03/2012 | US20120103941 Power switching apparatus |
| 05/03/2012 | US20120103940 Gas blast circuit breaker with making resistance contact and its making and breaking method |
| 05/02/2012 | EP2447975A1 Gas insulated switchgear |
| 05/02/2012 | EP2446455A2 High-voltage assembly |
| 05/02/2012 | EP2446454A1 High-voltage arrangement |
| 05/02/2012 | EP1974362B1 Generator isolator with inserted resistor |
| 05/02/2012 | CN202210491U Device for changing influence on vacuum arc extinguishing chamber from electrodynamic force |
| 05/02/2012 | CN202210490U Isolation equipment for vacuum circuit breaker |
| 05/02/2012 | CN202210489U Intelligent breaker |
| 05/02/2012 | CN202210488U ZW11-12/2000A-31.5kA outdoor heavy current high voltage vacuum circuit breaker |
| 05/02/2012 | CN102439676A Method for manufacturing a composite bushing, and partial discharge diagnosis system for a composite bushing |
| 05/02/2012 | CN102436964A Transmission mechanism of permanent magnet vacuum circuit breaker |
| 05/02/2012 | CN102436963A Novel vacuum arc-extinguishing chamber detecting support frame |
| 05/02/2012 | CN102436962A Novel insulating cylinder |
| 05/02/2012 | CN102436961A Indoor high-voltage vacuum circuit breaker |
| 05/02/2012 | CN102436960A Heating device of sulfur hexafluoride used in low-temperature areas |
| 05/02/2012 | CN102436959A Intrinsic safety high-voltage load switch |
| 05/02/2012 | CN102436958A Medium voltage circuit-breaker for outdoor use |
| 05/02/2012 | CN101556878B Operation mechanism of high-voltage vacuum load switch-fuse combined electric apparatus |
| 05/02/2012 | CN101116163B Interrupting chamber for a gas insulated high voltage circuit breaker |
| 05/02/2012 | CA2757038A1 Electrical switching apparatus and charging assembly therefor |
| 05/01/2012 | US8168911 Circuit breaker with improved arc quenching |
| 05/01/2012 | US8168910 Contact for a medium-voltage vacuum circuit-breaker with reinforced structure, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker |
| 05/01/2012 | US8168909 Vacuum switchgear |
| 04/26/2012 | US20120097642 Self-pressurized arc diverter |
| 04/26/2012 | DE102011008959B9 Stufenschalter mit Vakuumschaltröhren Tap changer with vacuum interrupters |
| 04/26/2012 | DE102011004212B3 Kontaktscheibe für eine Vakuumschaltröhre Contact disc for a vacuum interrupter, |
| 04/26/2012 | DE102010049137A1 Federspeicherantrieb sowie Hochspannungsleistungsschalter Spring mechanism and high voltage circuit breaker |
| 04/25/2012 | EP2445068A1 Gas insulation apparatus |
| 04/25/2012 | EP2444988A1 Stored-energy spring actuation and high voltage power switch |
| 04/25/2012 | EP1897107B1 Vacuum bulb for an electrical protection apparatus, such as a switch or a circuit breaker |
| 04/25/2012 | CN202205651U 高压真空断路器的分闸系统 High voltage vacuum circuit breaker opening system |
| 04/25/2012 | CN202205650U 12kV具有真空度、温度在线检测的真空灭弧室 12kV vacuum interrupter having a vacuum, temperature-line detection |
| 04/25/2012 | CN202205649U 大容量出线导电板 Large-capacity outlet conductive plate |
| 04/25/2012 | CN202205648U 全封闭固封极柱 Closed embedded pole |
| 04/25/2012 | CN202205647U 一种真空接触器 A vacuum contactor |
| 04/25/2012 | CN202205646U 40.5kv高可靠性真空断路器用真空开关管 40.5kv high reliability vacuum circuit breaker with a vacuum switch tube |
| 04/25/2012 | CN202205645U 12kV大电流真空断路器用真空开关管 12kV high current vacuum circuit breaker with a vacuum switch tube |
| 04/25/2012 | CN202205644U 12kV小型化户内真空断路器用真空开关管 Miniaturization of households within 12kV vacuum circuit breaker with a vacuum switch tube |
| 04/25/2012 | CN202205643U 24kV高原型真空接触器用真空开关管 Vacuum Contactor used vacuum plateau 24kV switch |
| 04/25/2012 | CN202205642U 12kV煤矿开关专用真空开关管 Mine switches for 12kV vacuum switch |
| 04/25/2012 | CN202205641U 快速切换高压开关 Fast switching high voltage switch |
| 04/25/2012 | CN202205640U 三工位开关管 Three-position switch |
| 04/25/2012 | CN202205639U 一种高压配电设备联锁装置 A high voltage power distribution equipment interlock device |
| 04/25/2012 | CN202205638U 高压断路器的动、静弧触头传动系统 Moving high voltage circuit breaker, static arcing contacts Transmission |
| 04/25/2012 | CN102428537A 开关装置 Switching device |
| 04/25/2012 | CN102428536A 在开关或电路断路器中的闩锁和锁定装置 Latching and locking means of the switch or circuit breaker |
| 04/25/2012 | CN102428535A High-Voltage Power Switch |
| 04/25/2012 | CN102428534A 多相开关器设备 Multiphase switching device |
| 04/25/2012 | CN102427011A 熔丝筒及开关柜 Fuse tube and switchgear |
| 04/25/2012 | CN102426976A 用于真空负荷开关的弹簧储能机构 Vacuum load switch for spring charging mechanism |