| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 04/22/2004 | US20040074875 Power use circuit breaker and electrical circuit arrangement for electric power generation plant |
| 04/22/2004 | US20040074874 Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type |
| 04/22/2004 | DE20220204U1 Heating device for control box of high voltage device, especially circuit breaker, has temperature sensor arranged outside control box and first heating element arranged inside control box |
| 04/21/2004 | EP1411535A1 Power switch with arc cooling means |
| 04/21/2004 | CN2613040Y AC high-voltage vacuum load switch |
| 04/21/2004 | CN1146932C Switch |
| 04/20/2004 | US6723940 Encapsulated magnetically actuated vacuum interrupter with integral bushing connector |
| 04/15/2004 | WO2004032298A1 Gas insulated switch |
| 04/15/2004 | WO2004032169A1 Vacuum beaker |
| 04/15/2004 | US20040070473 Low -voltage power switch with a bearing arrangement for a switch shaft |
| 04/15/2004 | US20040069749 Rotating arc fault-current interrupter |
| 04/14/2004 | CN2612053Y High voltage isolation switch contactor |
| 04/14/2004 | CN1489162A Method for preparing low segregation copper-chromium contact for vacuum switch |
| 04/14/2004 | CN1145997C Contact of integrated power swicth |
| 04/13/2004 | US6720515 Vacuum interrupter with two contact systems |
| 04/08/2004 | WO2004006275A3 Arc contact element for an electrical apparatus, production method thereof, corresponding contact assembly and electrical apparatus |
| 04/08/2004 | DE10244846A1 Circuit breaker for interrupting electric current, has spark cooling element arranged on main contact arrangement with at least one interaction section for cooling spark during switching process |
| 04/07/2004 | EP1406279A1 Gas blast circuit breaker with rotating arc |
| 04/07/2004 | EP1406278A2 Gas insulated switchgear |
| 04/07/2004 | CN2610477Y 真空断路器 Vacuum Circuit Breaker |
| 04/07/2004 | CN1488156A Low-voltage power switch with a bearing arrangement for a switch shaft |
| 04/07/2004 | CN1487639A Gas insulating openingand closing apparatus |
| 04/07/2004 | CN1487549A Electric operation mechanism for intelligent breaker |
| 04/07/2004 | CN1487546A High-voltage breaker-isolating switch combination electric device |
| 04/07/2004 | CN1145182C Contact material for vacuum circuit breaker |
| 04/06/2004 | US6717791 High-voltage circuit breaker with interrupter unit |
| 04/06/2004 | US6717088 Gas-insulated switch |
| 04/01/2004 | WO2004027805A1 Spring operator for switch |
| 04/01/2004 | WO2004027804A2 Monitoring system for high-voltage switchboards |
| 04/01/2004 | US20040061504 Vacuum circuit-breaker and a method for controlling the same |
| 03/31/2004 | EP1403891A1 Circuit breaker |
| 03/31/2004 | EP1402549A1 Electrical cutoff and sectioning equipment comprising a vacuum bulb |
| 03/31/2004 | EP1402548A1 Electrical circuit interrupting device |
| 03/31/2004 | EP1402546A1 Electrodynamic linear drive |
| 03/31/2004 | EP1145262B1 Vibro-acoustic signature treatment process in high-voltage electromechanical switching system |
| 03/31/2004 | CN2609158Y Circuit breaker for vacuum electric generator |
| 03/31/2004 | CN2609157Y Outdoor high voltage isolated switch |
| 03/31/2004 | CN2609156Y Sulfur hexafluoride circuit breaker automatic gas-supplementing device |
| 03/31/2004 | CN1486499A Vacuum circuit-breaker and a method for controlling the same |
| 03/31/2004 | CN1485870A Vacuum breaker |
| 03/31/2004 | CN1144333C 开关装置 Switching device |
| 03/31/2004 | CN1144246C Encapsulated vacuum interrupter and method of making same |
| 03/30/2004 | US6713984 Operating device for driving and controlling an electrical switching apparatus |
| 03/30/2004 | US6713679 Terminal pad for an insulator assembly |
| 03/25/2004 | WO2004025312A1 Method and apparatus for detecting wear in components of high voltage electrical equipment |
| 03/25/2004 | WO2003096363A3 Drive rod for switch |
| 03/25/2004 | US20040057185 Pluggable electrical apparatus, in particular surge arrester |
| 03/25/2004 | US20040057167 Circuit-breaker |
| 03/25/2004 | DE10339214A1 Magnetischer Betätiger Magnetic actuator |
| 03/25/2004 | DE10243825A1 Leistungsschalter mit schwenkbarem Schaltmesser Circuit breaker with swivel switch blade |
| 03/24/2004 | EP1254471B1 Method for producing an electromagnetic switchgear, e.g. a contactor |
| 03/24/2004 | CN1143340C Actuation and control device for high and medium-voltage circuit breakers |
| 03/24/2004 | CN1143339C Pole of a circuit breaker with an integrated optical current sensor |
| 03/18/2004 | US20040052026 Device for receiving interrupters of circuit breaker systems |
| 03/18/2004 | US20040050820 Circuit breakers |
| 03/18/2004 | US20040050819 Contact for vacuum interrupter and vacuum interrupter using the contact |
| 03/17/2004 | EP1398810A2 Circuit breaker with pivoting switch blade |
| 03/17/2004 | CN2606962Y Sulfur hexafluoride load switch combined safety device |
| 03/16/2004 | CA2092027C Operating mechanism usable with a vacuum interrupter |
| 03/11/2004 | US20040046568 Re-locatable partial discharge transducer head |
| 03/11/2004 | US20040046563 Method and apparatus for detecting wear in components of high voltage electrical equipment |
| 03/10/2004 | EP1034591A4 Arcing fault protection system for a switchgear enclosure |
| 03/10/2004 | CN2606440Y High-voltage separated switch with arc strike device |
| 03/10/2004 | CN1481567A Contact arrangement for vacuum switch tube |
| 03/10/2004 | CN1481566A Connection area between housing parts of vacuum interrupter, and vacuum interrupter having connection area of this type |
| 03/10/2004 | CN1480970A Transmission equipment and releasing arrangement |
| 03/10/2004 | CN1141719C Electromagnetic actuator |
| 03/09/2004 | US6703575 Arc-extinguishing system for a contact switching apparatus |
| 03/04/2004 | US20040040935 Control system for at least one vaccum interrupter gap |
| 03/04/2004 | DE10238950A1 Vacuum electrical switching device has in line structure having contacts operated by an electro mechanical actuator |
| 03/03/2004 | CN1479322A Solid insulator and method for manufacturing solid insulator |
| 03/02/2004 | US6700466 Contactor |
| 02/26/2004 | WO2004017348A2 Drive mechanism for switching installation and method for operating it |
| 02/26/2004 | WO2004017347A1 Power circuit-breaker |
| 02/26/2004 | US20040035828 Integrated contact for power switchgear |
| 02/26/2004 | US20040035827 Multipolar itegrated contact for power switchgear |
| 02/26/2004 | DE10320227A1 Hochspannungsschaltvorrichtung High voltage switching device |
| 02/25/2004 | EP1390961A1 Control for at least one vacuum breaker gap |
| 02/25/2004 | CN2604769Y AC vacuum contactor with motor protector |
| 02/25/2004 | CN1477662A High voltage or medium voltage switch device composed of vacuum and gas circuit breaker |
| 02/25/2004 | CN1139960C Oil filter apparatus and filter joint therefor |
| 02/25/2004 | CN1139958C Vacuum additron |
| 02/24/2004 | US6696658 Circuit interrupter and operating mechanism therefor |
| 02/24/2004 | US6696657 Puffer type gas circuit breaker |
| 02/18/2004 | CN2603999Y Solid sealed pole |
| 02/18/2004 | CN2603998Y Solid sealed pole |
| 02/18/2004 | CN1476658A Device for earthing switching device arranged in module frame in displaceable manner |
| 02/18/2004 | CN1476032A Spring energy storage device |
| 02/17/2004 | US6693250 Hybrid gas insulation switchgear apparatus |
| 02/12/2004 | WO2003055026A3 Armoured station element articulated to the ground |
| 02/12/2004 | US20040027741 Device for earthing a switching device arranged in a module frame in a displaceable manner |
| 02/12/2004 | US20040026377 Arc extinguisher with an attachment for low voltage switchgear |
| 02/12/2004 | US20040026376 Contact arrangement for a vacuum switch tube |
| 02/12/2004 | DE19952720B4 Hochspannungs-Leistungsschalter mit zwei Schaltkammern High-voltage circuit breaker with two switching chambers |
| 02/12/2004 | DE10219299B3 Gas-insulated single-pole switching device has load breaker and earthing switches within gas-tight housing having cylindrical section fitted with at least one concave end wall |
| 02/11/2004 | CN1475021A Switching device system, components therefore and method relating thcreto |
| 02/11/2004 | CN1475020A Switching device |
| 02/11/2004 | CN1474425A Cable lead wire electric porcelain sleeve for high voltage switch |
| 02/11/2004 | CN1138294C Modular accessory mechanical lockout mechanism |
| 02/11/2004 | CN1138291C Operating device for switch gear |