| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 08/28/2002 | CN1366176A Non interference monitering method for mixing ratio of gas mixture containing at least two components |
| 08/28/2002 | CN1089939C Braker with closed resistance |
| 08/22/2002 | US20020113040 Gas circuit breaker |
| 08/21/2002 | EP1149397B1 Position indicating devices and position locking devices for power circuit breaker systems |
| 08/21/2002 | EP0745262B1 High performance circuit breaker with independent pole operation linkage and conical composite bushings |
| 08/21/2002 | CN2507122Y Self-controlled current interruption device for high-voltage switch |
| 08/20/2002 | US6437276 Horizontally positioned, encapsulated high-voltage circuit breaker |
| 08/20/2002 | US6437275 Vacuum circuit-breaker, vacuum bulb for use therein, and electrodes thereof |
| 08/20/2002 | US6437274 Hybrid circuit breaker |
| 08/20/2002 | US6437273 Hybrid circuit breaker |
| 08/15/2002 | US20020108931 Vacuum switch container, vacuum switch, method for producing vacuum switch container and method for producing vacuum switch |
| 08/13/2002 | US6433980 Controlled switching device |
| 08/08/2002 | US20020104827 Gas insulated switchgear |
| 08/08/2002 | DE10104904A1 Verfahren zur Ummantelung eines Körpers Method for encasing a body |
| 08/07/2002 | EP1229563A1 Method for covering a vacuum switch housing |
| 08/07/2002 | CN2504750Y Permanent-magnet operation mechanism for vacuum breaker of bisin-shape polar |
| 08/07/2002 | CN2504749Y Single-phase high voltage breaker switch |
| 08/07/2002 | CN1362716A Vacuum arc-extinguishing chamber of 66KV and over voltage |
| 08/07/2002 | CN1088905C On-load tap changer of step switch |
| 08/06/2002 | US6429662 Internal fault indicator for power electrical devices |
| 08/06/2002 | US6429394 Power breaker |
| 08/06/2002 | US6429393 Current transfer arrangement for circuit interrupter |
| 08/06/2002 | CA2215945C Electric current switching apparatus with unitized removable contacts |
| 08/01/2002 | US20020100675 Driving force storing device for a switch operating mechanism |
| 08/01/2002 | DE10151105C1 Verbindungsbereich zwischen Gehäuseteilen einer Vakuumschaltröhre und Vakuumschaltröhre mit einem solchen Verbindungsbereich The connection area between housing parts of a vacuum interrupter and vacuum interrupter having such connecting portion |
| 08/01/2002 | DE10104392A1 Vakuumschalter sowie System und Verfahren zu seiner Steuerung A vacuum switch as well as a system and method for its control |
| 07/31/2002 | EP1226597A1 Compressed gas-blast circuit breaker |
| 07/31/2002 | EP1226596A1 Compact-structure three-pole apparatus for electric stations |
| 07/31/2002 | EP1068625B1 Drive devices for interrupter units in power supply switching devices |
| 07/31/2002 | CN1088538C 断路器 Breaker |
| 07/30/2002 | US6426627 Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof |
| 07/30/2002 | US6426616 Phasing and indicator arrangements for switchgear or the like |
| 07/30/2002 | US6426475 Vacuum valve |
| 07/25/2002 | WO2002058091A1 Vacuum circuit-breaker and a method for controlling the same |
| 07/25/2002 | DE10149894A1 Vakuumunterbrecher für Vakuumstromunterbrecher Vacuum interrupter for Vacuum Circuit Breaker |
| 07/24/2002 | EP1225610A1 Arcing contact arrangement for a circuit breaker |
| 07/24/2002 | EP1225609A2 Electromagnet and actuating mechanism for switch device |
| 07/24/2002 | CN2502391Y Spring operated mechanism for high voltage breaker |
| 07/24/2002 | CN2502390Y 真空负荷开关互锁机构 Vacuum load switch interlock mechanism |
| 07/24/2002 | CN1360729A Actuation and control device for electric switchgear |
| 07/24/2002 | CN1360326A Secondary close mechanism and drive mechanism for electric power switchgear |
| 07/24/2002 | CN1088249C Tripping device for circuit breaker equipped with electrical fault indication |
| 07/23/2002 | US6423903 Method and arrangement for minimizing electrical field stress in circuit interrupters and housings therefor |
| 07/18/2002 | US20020095262 Method of non-intrusively monitoring the mixture ratio of a gas mixture having at least two components |
| 07/18/2002 | US20020093408 Electromagnet and actuating mechanism for switch device, using thereof |
| 07/18/2002 | US20020092830 Metal-ceramic composite and vacuum switch unit using the same |
| 07/18/2002 | US20020092752 Closing assistance mechanism for an electrical switchgear apparatus and drive mechanism of an electrical switchgear apparatus equipped with such an assistance mechanism |
| 07/18/2002 | DE19932996C2 Leiter mit Flexiblem Teil Head with Flexible part |
| 07/17/2002 | EP1222472A1 Partial discharge monitoring system for transformers |
| 07/17/2002 | CN2501175Y Magnetic quenching microswitch |
| 07/16/2002 | US6418791 System and method for acoustic integrity monitoring |
| 07/11/2002 | WO2002054429A1 Vacuum sensor for medium-voltage vacuum circuit breaker |
| 07/11/2002 | US20020088775 High voltage disconnect switch |
| 07/11/2002 | DE10120784C1 Travel drive for plug-in load switch has hand crank with hollow shaft fitted to drive shaft to allow relative axial movement into operating position |
| 07/10/2002 | EP1221612A1 Method for noninvasively controlling a mixture ratio in a gaseous mixture with at least two components |
| 07/10/2002 | CN2499961Y Four work stage closed load switch |
| 07/10/2002 | CN2499960Y Outdoor high voltage vacuum load isolation switch |
| 07/10/2002 | CN2499959Y Spring operation mechanism |
| 07/10/2002 | CN2499958Y Connection structure for insulation outer casing and shield tube of vacuum switch pipe |
| 07/10/2002 | CN1357902A Vacuum disconnector |
| 07/10/2002 | CN1357901A High-voltage electric switch unit with composite motion |
| 07/10/2002 | CN1087480C 断路器 Breaker |
| 07/10/2002 | CN1087479C Electric arc explosion chamber system |
| 07/09/2002 | US6417604 Low pressure gas discharge switch |
| 07/09/2002 | US6417473 Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same |
| 07/09/2002 | US6417472 Vacuum switching chamber having an annular insulator |
| 07/09/2002 | CA2353190A1 High voltage disconnect switch |
| 07/09/2002 | CA2074543C Method of assembling a circuit-breaker pole, apparatus for carrying out this method and circuit-breaker pole for a medium-voltage or high-voltage circuit breaker |
| 07/08/2002 | CA2366029A1 Process for non-intrusive monitoring of rate of mixing of a gaseous mixture consisting of at least two compounds |
| 07/04/2002 | WO2002052596A1 Vacuum selector switch light-bulb |
| 07/03/2002 | EP1220252A1 Vacuum chamber |
| 07/03/2002 | EP1218906A1 High voltage circuit breaker |
| 07/03/2002 | EP1218905A1 Vacuum contactor |
| 07/03/2002 | EP1218904A1 Drive for the pole module of a circuit breaker |
| 07/03/2002 | CN1357166A Magnetic linear drive |
| 07/03/2002 | CN1357152A Operating mechanism for autorecloser with series disconnector |
| 07/03/2002 | CN1357151A Electric switching device |
| 07/03/2002 | CN1356750A Gas-tight switch |
| 07/03/2002 | CN1087097C Sealing appts. for breaker and its mfg. method |
| 07/02/2002 | US6414257 Gas-insulated circuit-breaker with an integrated electronic current transformer |
| 07/02/2002 | CA2101824C Gas circuit breaker |
| 06/27/2002 | WO2002050854A1 Contact arrangement for a vacuum switch tube |
| 06/27/2002 | US20020079291 Molded case circuit breaker including vacuum switch assembly |
| 06/27/2002 | DE10064832A1 Vacuum chamber comprises main and auxiliary contact positions and coil providing axial magnetic field with attached contact plate |
| 06/26/2002 | EP1217639A1 Closing assist mechanism for electrical switchgear and driving mechanism for an electrical apparatus having such an assist mechanism |
| 06/26/2002 | EP0801798B1 Sealed relay device |
| 06/26/2002 | CN2497422Y Load switch for box-type transformer |
| 06/26/2002 | CN2497421Y Hihg-voltage switch controller |
| 06/26/2002 | CN2497420Y Load switch for combined transformer |
| 06/26/2002 | CN1355925A High-voltage circuit breaker with discharge channel |
| 06/25/2002 | US6410875 Electrical switchgear apparatus comprising a vacuum cartridge and a flexible electrical connector |
| 06/25/2002 | US6410874 Breaking module comprising a vacuum cartridge and fixing means, and an electrical switchgear apparatus comprising such a module |
| 06/25/2002 | US6410873 High voltage circuit breaker, especially a gas-blast circuit breaker |
| 06/25/2002 | US6410867 Bolted conical loading joint system |
| 06/20/2002 | WO2002049057A1 Method and device for monitoring vacuum degree in vacuum circuit breaker |
| 06/20/2002 | WO2002049056A1 Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type |
| 06/19/2002 | EP1214727A2 Circuit breaker |
| 06/19/2002 | EP1214725A2 Clutch assembly for electrical switching apparatus with large compression close spring |
| 06/19/2002 | CN2496126Y Protecting phase-sequence casing for high-voltage switch |
| 06/19/2002 | CN1354538A Gas insulating switching device |