| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/23/2004 | CN1155035C Vacuum switch and vacuum switch gear |
| 06/23/2004 | CN1155034C Isolating/earthing switch for metal-encapsulated, gas-insulated high-voltage switchgear |
| 06/22/2004 | US6754059 Multi-pole low voltage circuit breaker with one current measuring device per line |
| 06/22/2004 | US6753494 Sintered body and electrode, method for surface densitication of these, process for manufacturing electrode by this method and circuit breaker |
| 06/22/2004 | US6753493 Electrical circuit interrupting device |
| 06/22/2004 | US6753492 Arc extinguishing device with a metal matrix composite high speed whip |
| 06/22/2004 | CA2130607C Arc-quenching compositions for high voltage current limiting fuses and circuit interrupters |
| 06/19/2004 | CA2453788A1 Vacuum electrical interrupter with pull-to-close mechanism |
| 06/16/2004 | EP1124242B1 Vacuum switch and vacuum switch gear |
| 06/16/2004 | CN2620922Y Circuit breaker spring control mechanism |
| 06/16/2004 | CN1505824A Switching arrangement for low-voltage circuit breakers |
| 06/16/2004 | CN1505080A Hydraulically driven high voltage large current arc extinction switch |
| 06/16/2004 | CN1154217C Bus connector for enclosed switchboard inflated with insulating gas |
| 06/16/2004 | CN1154138C Vacuum circuit breaker electrode arrangement with magnetic member for longitudinal magnetization |
| 06/15/2004 | US6751078 Power use circuit breaker and electrical circuit arrangement for electric power generation plant |
| 06/15/2004 | US6750567 Actuation and control device for electric switchgear |
| 06/15/2004 | US6750561 Protecting device |
| 06/15/2004 | CA2281971C Switch control equipped with a long-duration resistance insertion system |
| 06/15/2004 | CA2281779C Method of discrimination between a nontransferred arc and a breaking arc in a medium or high-voltage circuit breaker |
| 06/10/2004 | WO2004049366A1 Vacuum valve unit |
| 06/10/2004 | WO2004049365A1 Drive mechanism and vacuum breaker for vacuum switch tube |
| 06/10/2004 | WO2004017348A3 Drive mechanism for switching installation and method for operating it |
| 06/09/2004 | DE10313723B3 Absorber element module for absorption or damping of hot gas resulting from arcing in electrical function unit of HV or MV switchgear, has ceramic absorber element and channels for passage of hot gas |
| 06/09/2004 | CN2620372Y Local discharge detector for GIS |
| 06/09/2004 | CN1504008A Driving apparatus for insertion type circuit breaker |
| 06/09/2004 | CN1503979A Latching mechanism for locking spring energy store device |
| 06/09/2004 | CN1503417A Gas-insulated switch gear |
| 06/09/2004 | CN1153238C Low voltage multipole circuit breaker with high electrodynamic resistance, whereof the pole shaft is arranged in the compartment housing the poles |
| 06/09/2004 | CN1153237C Vacuum arc-suppressing autdoor silcone rubber layer covering method |
| 06/09/2004 | CN1153236C Vacuum electrical switch or circuit breaker |
| 06/09/2004 | CN1153235C Powre breaker |
| 06/08/2004 | US6747234 High voltage interrupter |
| 06/08/2004 | US6747233 Non-linear magnetic field distribution in vacuum interrupter contacts |
| 06/08/2004 | US6747232 Vacuum contactor |
| 06/08/2004 | CA2290850C Closure resistance insertion mechanism with ball locking |
| 06/03/2004 | WO2004047135A1 Contact element comprising rounded slot edges |
| 06/03/2004 | US20040104201 Metal-enclosed switchgear |
| 06/03/2004 | DE10254497B3 Short-circuit device for arcing protection of energy distribution network, uses energy provided by chemical reaction mixture for displacement of short-circuit contact |
| 06/03/2004 | DE10253866A1 Kontaktstück mit abgerundeten Schlitzkanten Contact piece with rounded slot edges |
| 06/03/2004 | DE10242443A1 Überwachungsanordnung für Hochspannungsschaltanlagen Monitoring arrangement for high voltage switchgear |
| 06/02/2004 | EP1423864A1 Drive device for a switching tube with a fixed and movable contact part |
| 06/02/2004 | CN2619352Y Contact seat coil for vacuum arc suppressing room |
| 06/02/2004 | CN1501414A Actuator, method of manufacturing the actuator and circuit breaker provided with the actuator |
| 06/02/2004 | CN1152399C Mechanism for operating three-position switch device |
| 06/01/2004 | US6744001 High-voltage circuit-breaker including a valve for decompressing a thermal blast chamber |
| 06/01/2004 | US6744000 High-voltage circuit breaker having an insulating nozzle |
| 06/01/2004 | US6743272 Filter bag |
| 06/01/2004 | CA2146040C Rotating arc interrupter for loadbreak switch |
| 05/27/2004 | US20040099639 Switching device system, components therefore and methods relating thereto |
| 05/27/2004 | DE10351766A1 Metallgekapselte Schaltvorrichtung Metal-encapsulated switching device |
| 05/26/2004 | EP1360710B1 Low-voltage power switch with a bearing arrangement for a switch shaft |
| 05/26/2004 | CN1499687A Metallic locking shutter |
| 05/26/2004 | CN1499560A Breaker comprising control assembly and breaker chamber, its mounting method and auxiliary component for mounting |
| 05/26/2004 | CN1499552A Arc arrester and switch having same |
| 05/26/2004 | CN1499540A Solenoid operator and solenoid-operated switching device and control device for electromagnet |
| 05/25/2004 | US6741435 Power controller with DC ARC-supression relays |
| 05/25/2004 | US6740838 Contact for vacuum interrupter and vacuum interrupter using the contact |
| 05/25/2004 | US6740837 Contact zone for a power breaker |
| 05/20/2004 | US20040095711 Gas-insulated switchgear |
| 05/20/2004 | US20040094513 Switching arrangement for low-voltage circuit breakers |
| 05/20/2004 | US20040093718 Actuator, method of manufacturing the actuator and circuit breaker provided with the actuator |
| 05/19/2004 | EP1420426A1 Operating device for simultaneous disconnecting switch |
| 05/19/2004 | DE10346301A1 Power switching method for switchgear, using liquid-metal contact film which electrically bridges gap between fixed electrodes and moving electrode |
| 05/19/2004 | DE10249614B3 Isolierstoffgehäuse mit Rippenkontur Insulated ribbed contour |
| 05/19/2004 | CN2617023Y 路灯开关 Street light switch |
| 05/19/2004 | CN1497632A 断路器 Breaker |
| 05/13/2004 | WO2004040729A1 Gas-insulated switchgear |
| 05/13/2004 | WO2004040728A1 Gas-insulated switchgear |
| 05/13/2004 | WO2004040610A1 Circuit breaker |
| 05/13/2004 | WO2004040609A1 Insulant housing comprising an inner ribbed contour |
| 05/13/2004 | US20040090720 Method and an apparatus for controlling an electric switching device |
| 05/13/2004 | US20040090719 Method and device for prediction of a zero-crossing alternating current |
| 05/13/2004 | US20040089635 Disconnect swithch for switching capacitive currents |
| 05/13/2004 | DE10249615A1 Herstellung eines feststoffisolierten Schalterpols Preparation of a solid-insulated switch pole |
| 05/12/2004 | EP1417693A1 Electric switching device for medium or high voltage |
| 05/12/2004 | CN2615842Y Electric resistance switch |
| 05/12/2004 | CN1495817A Electromagnetic operation device |
| 05/12/2004 | CN1149601C Vacuum switch apparatus |
| 05/12/2004 | CN1149600C Electrical circuit breaker |
| 05/11/2004 | US6734378 Operating shaft for a multiple electrical power circuit breaker and method for its production |
| 05/11/2004 | US6733871 Process for producing ceramic member for bonding, ceramic member for bonding, vacuum switch, and vacuum vessel |
| 05/07/2004 | CA2432768A1 Disconnect switch for switching capacitive currents |
| 05/06/2004 | WO2004038748A1 Production of a circuit-breaker pole, insulated by a solid material |
| 05/06/2004 | EP1416507A1 Circuit breaker with a control unit and an interrupting chambre, method for assembling the same and auxiliary member for this assembling |
| 05/06/2004 | EP1416503A2 Solenoid-operated switching device and control device for electromagnet |
| 05/06/2004 | EP1245064B1 Isolator switch |
| 05/06/2004 | DE4243537B4 Verfahren zum Schalten eines Sicherungslasttrenners und Sicherungslasttrenner hierzu A method for switching a fuse switch disconnector and fuse switch disconnectors this |
| 05/06/2004 | DE19513790B4 Verfahren zur Herstellung einer Vakuumschaltkammer A method for producing a vacuum switching chamber |
| 05/05/2004 | CN1494727A 空气自动断路器 Automatic air circuit breakers |
| 05/05/2004 | CN1494725A Low-voltage circuit breaker with electric arc extinction system |
| 05/05/2004 | CN1494100A Operating device for shielding device |
| 05/05/2004 | CN1148772C Self-energized thermal expansion type SF6 arc-extinguishing chamber of circuit breaker |
| 05/05/2004 | CN1148771C Instantaneous current conversion switch circuit |
| 05/04/2004 | US6730871 Compressed gas-blast circuit breaker |
| 04/29/2004 | US20040079731 Gas insulated switchgear |
| 04/29/2004 | DE10291282T5 Kombination aus einer Vakuum-Unterbrechungseinrichtung und einem ölgefüllten Transformator Combination of a vacuum interruption device and an oil-filled transformer |
| 04/28/2004 | CN1493099A Switch gear and multi-layer switch gear |
| 04/28/2004 | CN1493084A 空气断路器 Air Circuit Breakers |
| 04/28/2004 | CN1147892C Method of utilizing non-uniform longitudinal magnetic field in inhibiting vacuum are aggregation |
| 04/27/2004 | US6727453 Hybrid circuit breaker with a transmission |