| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 07/19/2000 | EP0934598A4 Vertical antitracking skirts |
| 07/19/2000 | EP0929905A4 Encapsulated vacuum interrupter and method of making same |
| 07/19/2000 | CN2388701Y Safety barrier plate |
| 07/19/2000 | CN1260617A Part with cooling device of high-tension system |
| 07/19/2000 | CN1260577A Vacuum additron |
| 07/18/2000 | US6091040 Outdoor high-voltage power circuit breaker |
| 07/13/2000 | WO2000041202A1 Current limiter and circuit breaker with current-limiting function |
| 07/13/2000 | WO2000041199A1 Method for assembly of insulated housings for electrical equipment and incorporation of circuit interrupters therein |
| 07/13/2000 | DE19900778A1 Hydraulic drive for electric switch operating device has cylinder for inner piston and outer cylinder ring for outer annulkar piston formed in one piece |
| 07/13/2000 | DE19900772A1 Hydraulic piston for e.g. high voltage power-switching actuator, includes piston with blind axial hole into which piston rod is screwed, and plastic ring seals on either side of piston ring seal |
| 07/13/2000 | DE19900771A1 Switching valve for hydraulic drive for HV power switch has electromagnetic system controlling hydraulic device for linear displacement of control piston and valve between pressure line and pressure space for operating piston |
| 07/13/2000 | DE19900666A1 Elektrischer Schnellschalter Electric pressure switch |
| 07/13/2000 | DE19854108C1 Vorrichtung zur Löschung eines Lichtbogens Apparatus for quenching of an arc |
| 07/12/2000 | EP0925595B1 Wheeled circuit interrupter provided with a blower-attenuator |
| 07/12/2000 | CN2387627Y Deciliter power source of permanent-magnet switching mechanism |
| 07/12/2000 | CN1259753A Buffer type gas circuit breaker |
| 07/12/2000 | CN1259752A Method for detecting between electric arc and interruption in high voltage or medium voltage breaker |
| 07/11/2000 | US6087913 Circuit breaker mechanism for a rotary contact system |
| 07/11/2000 | US6086398 Terminal connection device |
| 07/11/2000 | US6085964 Method of sealing a hole |
| 07/06/2000 | WO2000039825A1 Actuating shaft for a multipolar circuit breaker and method for producing same |
| 07/06/2000 | DE19859815A1 Switching movement transmission device for circuit breaker |
| 07/05/2000 | EP1017142A1 Recloser-automatic switch for aerial power lines of the tel series |
| 07/05/2000 | EP1017074A1 Electrical switch apparatus having a contact member provided with a slit |
| 07/05/2000 | EP1017071A2 Improved circuit breaker |
| 07/05/2000 | EP1016111A2 High voltage circuit-breaker with a counter-contact which can be actuated |
| 07/05/2000 | EP1016104A1 Transformer system provided with a decoupling system |
| 07/05/2000 | CN2386526Y Post isolation vacuum load switch |
| 07/05/2000 | CN2386525Y Rotatable contact holding spring for high voltage vacuum switch |
| 07/05/2000 | CN2386523Y Switchover switch control mechanism for dry vacuum on-load tap changer |
| 07/05/2000 | CN1258924A Electric switch equipment having contact part with groove |
| 07/05/2000 | CN1258923A Very fast transient overvoltage suppressing method for completely enclosed combined electrical appliance |
| 07/05/2000 | CN1258922A Ball locking mechanism inserted in closed electrical resistor |
| 07/05/2000 | CA2292050A1 Multi-pole breaker assembly |
| 07/04/2000 | US6084758 Power distribution system with circuit breakers remotely resettable by signals transmitted over the power lines |
| 07/04/2000 | US6084492 Magnetic actuator |
| 06/29/2000 | DE19959782A1 Vacuum switch tubes |
| 06/29/2000 | DE19860717A1 Schaltwelle für einen mehrpoligen elektrischen Leistungsschalter und Verfahren zu ihrer Herstellung Switching shaft for a multipole electrical circuit breakers and methods for their preparation |
| 06/29/2000 | DE19859766A1 Self quenching light arc switch has storage chamber radially inside annular contact arrangement with channels to light arc zone arranged to produce tangential gas speed component |
| 06/29/2000 | DE19859764A1 Self quenching light arc switch has storage arrangement with smaller first volume connected to light arc zone, and valve actuated by volume pressure difference to connect second volume to light arc zone |
| 06/29/2000 | DE19859008A1 Contact part arrangement for vacuum chamber has second contact part permanently connected to first, at distance behind its contact surface, and circular coil behind second contact part |
| 06/29/2000 | DE19859007A1 Load isolation switch has first contact point with fixed contact arrangement and movable contact arrangement in form of linearly movable thrust tube containing movable vacuum chamber |
| 06/28/2000 | EP1014522A1 Method for measuring the density of a dielectric gas in a buried encapsulated cable |
| 06/28/2000 | EP1014411A1 Device using locks for locking the manual operation of a circuit breaker |
| 06/28/2000 | EP1014403A1 Current-limiting switch |
| 06/28/2000 | EP1014396A2 Oil filter facility and filter element for this oil filter facility |
| 06/28/2000 | EP1012857A1 Electromagnetic actuator |
| 06/28/2000 | CN2385425Y Vacuum arc-extinguishing chamber mechanism |
| 06/28/2000 | CN2385424Y Integral vacuum load switch |
| 06/28/2000 | CN1258374A Rotation-activated circuit-breaker with leading auxiliary switch |
| 06/28/2000 | CN1258087A Oil filter apparatus and filter joint therefor |
| 06/28/2000 | CN1258086A 相位控制开关装置 Phase-control switching apparatus |
| 06/28/2000 | CN1258084A Current-limiting switch |
| 06/28/2000 | CN1258083A Contact device for current-limiting switch |
| 06/27/2000 | US6080952 Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization |
| 06/27/2000 | CA2158962C Arc stack for a circuit breaker |
| 06/23/2000 | CA2293055A1 Oil-filter assembly |
| 06/22/2000 | WO2000036621A1 Operating device for driving and controlling an electrical switching apparatus |
| 06/22/2000 | WO2000036620A1 Device for transmitting a movement |
| 06/21/2000 | EP1011121A1 Gas blast switch |
| 06/21/2000 | EP1010187A1 Power circuit breaker with an actuating shaft |
| 06/21/2000 | DE19858793A1 Druckgasschalter Gas pressure switch |
| 06/21/2000 | DE19852530C1 High voltage vacuum switch |
| 06/21/2000 | CN2384307Y Vacuum switching tube with all range sensor |
| 06/21/2000 | CN2384306Y Spring operating mechanism for medium voltage vacuum circuit breaker |
| 06/21/2000 | CN2384302Y Electric power switch |
| 06/21/2000 | CN1257296A Combined type circuit breaker with electric operation mechanism |
| 06/21/2000 | CN1257288A Isolator for high-voltage switch equipment |
| 06/21/2000 | CN1053768C Switching apparatus |
| 06/20/2000 | US6078485 Medium- and high-voltage gas-insulated circuit breaker with arc quenching means |
| 06/18/2000 | CA2292930A1 Method for measuring the density of a dielectric gas in a shielded underground line |
| 06/18/2000 | CA2292911A1 Device for locking a manual breaker switch with locks |
| 06/15/2000 | WO2000034969A1 Electric circuit breaker |
| 06/15/2000 | DE19857170A1 Switchgear with a vacuum switch chamber for loading, isolating, grounding and protecting against overload and short-circuits includes movable contact stems with movable contacts under pressure from a disconnecting spring. |
| 06/15/2000 | DE19856775A1 High voltage (HV) power switch with interrupter unit e.g. for overhead lines |
| 06/14/2000 | CN1256503A Vacuum switch device |
| 06/13/2000 | US6075684 Method and arrangement for direct current circuit interruption |
| 06/13/2000 | CA2040863C Instantaneous trip device of a circuit breaker |
| 06/08/2000 | DE19952720A1 High voltage power switch |
| 06/08/2000 | DE19952719A1 Molded resin insulator unit for a high voltage switch, has large surface metallic connection zones embedded in upper and lower faces |
| 06/08/2000 | DE19856288A1 Vacuum switching chamber for vacuum circuit breaker, has insulating bodies with vacuum tightly closed by metal lid and containing several screens |
| 06/07/2000 | EP1006548A1 High tension switch |
| 06/07/2000 | EP1006547A1 Closing resistor insertion mechanism with ball lock retainer |
| 06/07/2000 | CN2382153Y Quick opening mechanism for mineral explosionproof switch |
| 06/07/2000 | CN2382122Y Vacuum loaded switch |
| 06/07/2000 | CN2382121Y Spring operating mechanism of outdoor A. C. high voltage loaded switch |
| 06/07/2000 | CN1053289C Forced charge indicator for ampere-rated circuit breaker operated by spring |
| 06/06/2000 | US6072673 Medium to high voltage load circuit interrupters including metal resistors having a positive temperature coefficient of resistivity (PTC elements) |
| 06/06/2000 | US6072141 Vacuum switch contact arrangement |
| 06/06/2000 | US6072136 Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring |
| 05/31/2000 | EP1005133A2 Power distribution system with circuit breakers remotely resetable by signals transmitted over the power lines |
| 05/31/2000 | EP1005058A2 Vacuum switchgear |
| 05/31/2000 | EP1005057A2 Arc extinguishing device |
| 05/31/2000 | EP1004159A1 A link switch |
| 05/31/2000 | DE19633524C2 Leistungsschaltanlage mit Trennfunktion Circuit-breaker with isolating function |
| 05/31/2000 | CN2381011Y Composite insulated pull-rod |
| 05/31/2000 | CN1255231A Compressed gas power switch |
| 05/31/2000 | CN1254974A Interlocking plug-in box for bus bar |
| 05/30/2000 | US6069544 Circuit breaker operating mechanism having a collapsible contact arm linkage assembly |
| 05/25/2000 | WO2000030137A1 Medium to high voltage load circuit interrupters including metal resistors having a positive temperature coefficient of resistivity (ptc elements) |