| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 03/31/2011 | DE102009036590B3 Gasisolierte Hochspannungsschaltanlage Gas-insulated high-voltage switchgear |
| 03/30/2011 | EP2301052A1 Tripping assembly for switching device |
| 03/30/2011 | CN201781219U Bus coupler cabinet |
| 03/30/2011 | CN201781213U Switch cabinet system |
| 03/30/2011 | CN201780929U Compact trolley type permanent-magnet vacuum circuit breaker with solid seal insulation electrode posts in horizontal arrangement |
| 03/30/2011 | CN201780928U Mine flame-proof vacuum feed switch |
| 03/30/2011 | CN201780927U Novel explosion-proof type vacuum feeder switch for mine use |
| 03/30/2011 | CN201780926U Flameproof type vacuum feeding switch for mines |
| 03/30/2011 | CN201780925U Non-arcing switch |
| 03/30/2011 | CN201780896U Locking device for closing mechanism of breaker |
| 03/30/2011 | CN101997274A Solid insulation complete-sealing switch isolation hood |
| 03/30/2011 | CN101997273A Insulating cover for solid insulating fully sealed switch |
| 03/30/2011 | CN101996815A Switchgear and operation method of switchgear |
| 03/29/2011 | US7915985 Switching device for direct-current applications |
| 03/29/2011 | US7915558 Circuit breaker with articulating control cabinet |
| 03/28/2011 | CA2715830A1 Shield apparatus for circuit breaker |
| 03/24/2011 | DE102009033982A1 Vakuumschaltröhre Vacuum interrupter |
| 03/24/2011 | DE102008035871B4 Nockenscheibe und Federwegschalter für einen Federspeicherantrieb sowie Federspeicherantrieb Cam and spring travel switch for a spring mechanism and spring operating mechanism |
| 03/23/2011 | EP2299464A1 Self-blow switch with filling and excess pressure valve |
| 03/23/2011 | EP2297761A1 Method and device for producing vacuum interrupters or assemblies of vacuum interrupters, and vacuum interrupter |
| 03/23/2011 | EP2297756A1 Hydraulic stored-energy spring mechanism |
| 03/23/2011 | EP1829077B2 Generator switch having an improved switching capacity |
| 03/23/2011 | CN201773762U Energy storage transmission wheel for indoor AC high-voltage vacuum circuit breaker |
| 03/23/2011 | CN201773761U Spring operating mechanism for indoor AC (alternating current) vacuum circuit breaker |
| 03/23/2011 | CN201773760U Vacuum circuit breaker operating crankarm |
| 03/23/2011 | CN201773759U High-voltage vacuum circuit breaker |
| 03/23/2011 | CN201773758U Three-station vacuum arc extinguishing chamber for isolating and grounding |
| 03/23/2011 | CN201773757U Vacuum arcing chamber with three-station shielding cover |
| 03/23/2011 | CN201773756U Sealed terminal pole applied to high-altitude regions |
| 03/23/2011 | CN201773755U Indoor high-pressure vacuum circuit breaker |
| 03/23/2011 | CN201773754U High-capacity vacuum circuit breaker for protecting short-circuit impact generator used in testing station |
| 03/23/2011 | CN201773753U Sealing pole for 12kV high-insulativity vacuum circuit breaker |
| 03/23/2011 | CN201773752U Vacuum overcurrent fuse protection device for high and low voltage power supply systems |
| 03/23/2011 | CN201773751U Conductive clamp of medium-voltage vacuum circuit breaker |
| 03/23/2011 | CN201773750U Three-phase special-shaped joint full-shielded touchable vacuum circuit breaker |
| 03/23/2011 | CN201773749U Directly-operated-type alternating-current high-voltage vacuum load switch |
| 03/23/2011 | CN101989511A Load switch |
| 03/23/2011 | CN101989510A Vacuum load isolating switch |
| 03/23/2011 | CN101989503A Hydraulic switching valve and circuit breaker device |
| 03/22/2011 | US7911304 Electromagnetic relay |
| 03/22/2011 | US7911303 Circuit breaker and opening and closing method thereof |
| 03/22/2011 | US7911086 Switching circuit, signal output device and test apparatus |
| 03/22/2011 | US7910852 Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
| 03/22/2011 | US7910845 Removable racking system for an electrical switching apparatus |
| 03/17/2011 | WO2011031033A2 Gas-insulated switchgear for a high-voltage circuit breaker |
| 03/17/2011 | US20110062117 Vacuum insulated switchgear |
| 03/17/2011 | US20110062116 Self-blowout circuit breaker having a filling and overpressure valve |
| 03/17/2011 | US20110062002 Circuit breaker racking apparatus, systems, and methods of using same |
| 03/16/2011 | EP2296160A1 Vacuum insulated switchgear |
| 03/16/2011 | EP2294594A1 Vacuum switching tube |
| 03/16/2011 | EP2294593A1 Pole part of a medium-voltage or high-voltage switchgear assembly, and method for its production |
| 03/16/2011 | EP2294592A1 Load interrupter comprising an arc extinguishing device |
| 03/16/2011 | CN201766289U Compact type intelligent sealing and insulating permanent magnetic & vacuum ring net cabinet |
| 03/16/2011 | CN201766021U Insulating oil arc-extinguishing button switch |
| 03/16/2011 | CN201766020U Intelligent rapid closing switch |
| 03/16/2011 | CN201766019U Corrugated pipe twist prevention structure |
| 03/16/2011 | CN201766018U Buffering sealed insulated outdoor high voltage vacuum circuit breaker |
| 03/16/2011 | CN201766017U Novel indoor high-voltage vacuum circuit breaker with uniform electric field |
| 03/16/2011 | CN201766016U Gas isolation load switch casing and load switch employing the same |
| 03/16/2011 | CN201765927U Compact oil-immersion type vacuum on-load tap-changer |
| 03/16/2011 | CN101986407A Quick control mechanism of ultrahigh pressure vacuum circuit breaker and control method thereof |
| 03/15/2011 | US7906742 Vacuum interrupter chamber and contact arrangement for a vacuum circuit breaker |
| 03/15/2011 | CA2515472C High voltage operating rod sensor and method of making the same |
| 03/15/2011 | CA2479346C Arc-resistant switchgear enclosure |
| 03/10/2011 | WO2011026519A1 Hollow electric insulator and manufacturing thereof |
| 03/10/2011 | US20110056917 Circuit breaker with high-speed mechanically interlocked impedance grounding switch |
| 03/10/2011 | US20110056916 Vaccum Switch Chamber with a Protective Sleeve that is Applied by Heat Shrinking |
| 03/10/2011 | US20110056915 Valve for gas circuit breaker and gas circuit breaker with the same |
| 03/09/2011 | EP1512160B1 High voltage shielded gear comprising a circuit breaker with closure resistor mounted in a conducting bar |
| 03/09/2011 | CN201758101U High-strength insulating operating rod device for indoor high-voltage vacuum circuit breaker |
| 03/09/2011 | CN201758100U Power supplying device for operation power supply of outdoor high-voltage permanent magnet vacuum switch |
| 03/09/2011 | CN201758099U Switch device with isolated and grounded vacuum circuit breaker |
| 03/09/2011 | CN201758098U Outdoor high voltage vacuum circuit breaker device capable of shielding electric field |
| 03/09/2011 | CN201758097U Permanent magnet vacuum unidirectional switch and multifunctional combined switch provided with the same |
| 03/09/2011 | CN201758096U Permanent magnet vacuum unidirectional switch and combination switch of disconnector and contactor |
| 03/08/2011 | US7903394 Gas-insulated switchgear |
| 03/08/2011 | US7902948 Switching device, in particular a power switching device, having two pairs of series-connected switching contacts for interrupting a conducting path |
| 03/08/2011 | US7902480 Vacuum insulated switchgear |
| 03/08/2011 | US7902479 Vacuum switchgear |
| 03/08/2011 | US7902478 Switching chamber for a gas-insulated high-voltage switch |
| 03/03/2011 | WO2011024228A1 Electric contact point for vacuum valve, and vacuum interrupter and vacuum switchgear using the electric contact point |
| 03/03/2011 | WO2010149482A3 Mechanical actuating device for three-position disconnector |
| 03/02/2011 | EP2289085A1 A dc current breaker |
| 03/02/2011 | EP1316131B1 Locking device for withdrawable circuit-breakers |
| 03/02/2011 | CN201754387U On-line insulation monitoring device for oil-poor circuit breaker |
| 03/02/2011 | CN1910714B Control for electric power interrupting device |
| 03/01/2011 | US7897890 Vacuum insulated switchgear |
| 02/24/2011 | WO2011021990A1 Method for manufacturing a copper-based composite material for electrical contacts |
| 02/24/2011 | WO2011020513A1 Retaining element for switchgear |
| 02/24/2011 | WO2011020509A1 Switchgear |
| 02/24/2011 | WO2011020508A1 Disconnector for switchgear |
| 02/24/2011 | WO2011020507A1 Breaker module for medium-voltage switchgear and medium-voltage switchgear |
| 02/24/2011 | US20110042354 Magnet interrupter for high voltage switching |
| 02/24/2011 | DE202010016957U1 Vakuumschaltkammer insbesondere für Mittelspannungsschaltanlagen Vacuum interrupter chamber in particular for medium voltage switchgear |
| 02/24/2011 | DE102009038435A1 Motor drive for actuating e.g. rocker arm of circuit breaker during local and remote operations, has processor controlling local and remote operations of drive and monitoring time-dependent and/or path-dependent events of circuit breaker |
| 02/24/2011 | DE10157140B4 Hybridschalter Hybrid switch |
| 02/23/2011 | EP2287874A2 Switchgear and method for operating switchgear |
| 02/23/2011 | EP2286428A1 Low oil trip assembly for a fault interrupter and load break switch |
| 02/23/2011 | CN201751971U New structure of transmission shaft of high voltage circuit breaker mechanism |
| 02/23/2011 | CN101981645A Vacuum breaker and gas insulated switchgear using the same |