| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 05/09/2013 | US20130112657 Arc chamber assembly for use in moulded case circuit breakers |
| 05/09/2013 | US20130112656 Magnet arrangement for a low-voltage circuit-breaker |
| 05/08/2013 | CN202930306U Unidirectional energy storage transmission apparatus for vacuum circuit breaker |
| 05/08/2013 | CN202930305U High voltage vacuum circuit breaker with O-shaped electrodynamic force compensation arrangement |
| 05/08/2013 | CN202930304U Novel solid-sealed polar pole |
| 05/08/2013 | CN202930303U ANP-12 type permanent magnet vacuum breaker on outdoor post |
| 05/08/2013 | CN202930302U Integral transformation structure of split type high voltage circuit breaker |
| 05/08/2013 | CN202930301U Outdoor high-voltage vacuum circuit breaker novel steel bracket |
| 05/08/2013 | CN103094003A Switchgear and method for manufacturing same |
| 05/08/2013 | CN102097246B Rotational structure of vacuum on-load tap changer (OLTC) |
| 05/08/2013 | CN101197220B High-tension circuit breaker with a metal tank filled with dielectric gas |
| 05/07/2013 | US8436264 Power transmission mechanism for four poles circuit breaker |
| 05/07/2013 | CA2569267C Switching apparatus and method for varying an impedance of a phase line of a segment of an electrical power line |
| 05/02/2013 | WO2013060820A1 Cutting chamber provided with a tube for limiting the impact of the particle generation, and electrical cutting apparatus provided with such a cutting chamber |
| 05/02/2013 | WO2013060359A1 Direct current breaker and electrical power system comprising such direct current breaker |
| 05/02/2013 | US20130105444 Arc Extinction Apparatus and DC Switch Apparatus |
| 05/02/2013 | DE112010004255T5 Schalterbetätigungsmechanismus Switch actuation mechanism |
| 05/01/2013 | EP2586882A1 Method for producing electrode material for vacuum circuit breaker, electrode material for vacuum circuit breaker and electrode for vacuum circuit breaker |
| 05/01/2013 | CN202917388U Milliampere-level current tripping device |
| 05/01/2013 | CN202917387U High voltage vacuum circuit breaker operating mechanism with fault pre-warning device |
| 05/01/2013 | CN202917386U High voltage vacuum circuit breaker operating mechanism with intelligent fault reporting device |
| 05/01/2013 | CN202917385U Operating device for high-voltage vacuum circuit breaker |
| 05/01/2013 | CN202917384U Novel cup-shaped longitudinal magnetic uniform type vacuum explosion chamber contact with iron core structure |
| 05/01/2013 | CN202917383U Assembly type pole column |
| 05/01/2013 | CN202917382U Assembly type pole |
| 05/01/2013 | CN202917381U High-altitude-type outdoor vacuum circuit breaker |
| 05/01/2013 | CN202917380U Box-type modular high-voltage alternating-current vacuum circuit breaker on 10 KV outdoor column |
| 05/01/2013 | CN202917379U 真空断路器 Vacuum Circuit Breaker |
| 05/01/2013 | CN202917378U Isolation-grounding switch transmission mechanism |
| 05/01/2013 | CN202917377U Three-station isolating/earthing switch for gas insulated metal-enclosed switchgear |
| 05/01/2013 | CN202917376U Electric transmission mechanism of 40.5kV-circuit breaker |
| 05/01/2013 | CN103081050A An electrical isolator |
| 05/01/2013 | CN103077848A 三相负荷开关 Three-phase load switch |
| 05/01/2013 | CN103077847A Unidirectional energy-storage transmission device of vacuum circuit breaker |
| 05/01/2013 | CN103077846A High-voltage switching device |
| 05/01/2013 | CN103077845A Vacuum-type rocker switch |
| 05/01/2013 | CN102290284B Novel vacuum switch tube |
| 05/01/2013 | CN102184797B Manual stored energy closing and self-locking device of vacuum circuit breaker |
| 05/01/2013 | CN102013355B Control method for prolonging service life of permanent magnet driven vacuum circuit breaker |
| 05/01/2013 | CN101772865B Vacuum interrupter |
| 05/01/2013 | CA2792605A1 Arc extinction apparatus and dc switch apparatus |
| 04/30/2013 | US8431845 Electrical switching apparatus and levering assembly therefor |
| 04/25/2013 | WO2013057936A1 Gas circuit breaker |
| 04/25/2013 | WO2013057808A1 Gas circuit breaker |
| 04/25/2013 | WO2013057117A1 Pressurized-gas circuit breaker capable of being assembled and disassembled without gas loss |
| 04/25/2013 | US20130098874 Switch having two sets of contact elements |
| 04/24/2013 | EP2583365A1 Switchgear with single-phase insulation comprising air and screens |
| 04/24/2013 | CN202905591U High-voltage permanent-magnet vacuum circuit breaker on outdoor post |
| 04/24/2013 | CN202905590U An ANP monostable permanent magnetic mechanism with a single coil |
| 04/24/2013 | CN202905589U Main shaft structure of vacuum circuit breaker |
| 04/24/2013 | CN202905588U Spring mechanism coupling-free closing drive structure applied to high-voltage vacuum circuit breaker |
| 04/24/2013 | CN202905587U A four-function-integrating operating mechanism of a high-voltage vacuum isolation breaker |
| 04/24/2013 | CN202905586U 真空灭弧室 Vacuum interrupter |
| 04/24/2013 | CN202905585U Outdoor-pole high-voltage permanent-magnetic vacuum circuit breaker |
| 04/24/2013 | CN202905584U Anti-breakdown ceramic vacuum switch tube |
| 04/24/2013 | CN202905583U Novel vacuum switch tube |
| 04/24/2013 | CN202905582U 真空开关管 Vacuum switch |
| 04/24/2013 | CN202905581U Enhanced vacuum switch tube |
| 04/24/2013 | CN202905580U High-performance vacuum switch tube |
| 04/24/2013 | CN202905579U High-voltage vacuum circuit breaker |
| 04/24/2013 | CN202905578U Ceramic vacuum switch tube for solid-sealed polar pole |
| 04/24/2013 | CN202905577U Vacuum circuit breaker having flexible opening buffer energy absorbing apparatus |
| 04/24/2013 | CN202905576U Arc extinguish chamber outgoing line bar fixing structure of vacuum circuit breaker |
| 04/24/2013 | CN202905575U High-voltage vacuum circuit breaker |
| 04/24/2013 | CN202905574U Vacuum circuit breaker having electronic contact wear thickness detection device |
| 04/24/2013 | CN202905573U Side-mounted indoor high voltage vacuum circuit breaker |
| 04/24/2013 | CN202905572U Circuit breaker special for railway |
| 04/24/2013 | CN202905571U Sulfur hexafluoride load switch shell easy to radiate heat |
| 04/24/2013 | CN202905570U Three-phase mechanical linkage connection mechanism of circuit breaker |
| 04/24/2013 | CN202905569U Linear-motion-type isolation grounding switch |
| 04/24/2013 | CN202905568U High-voltage circuit breaker and operation mechanism thereof |
| 04/24/2013 | CN103069530A Semiconductor assisted dc load break contactor |
| 04/24/2013 | CN103069528A Circuit-breaker pole part and method for producing such a pole part |
| 04/24/2013 | CN103069527A Method for producing a circuit-breaker pole part |
| 04/24/2013 | CN103069526A Circuit breaker phase control switching system and circuit breaker control unit |
| 04/24/2013 | CN103065864A Novel gas circuit breaker with real-time adjustable air pressure |
| 04/24/2013 | CN103065863A Sulfur hexafluoride high pressure electrical equipment without heating for cold area |
| 04/24/2013 | CN103065862A Operating mechanism of disconnector |
| 04/24/2013 | CN103065861A Outdoor alternating current high-voltage SF6 automatic sectionalizer |
| 04/24/2013 | CN103065860A Novel three-position operating mechanism |
| 04/24/2013 | CN103065859A Directly-operated type earthing switch |
| 04/24/2013 | CN102214534B Circuit breaker air chamber for gas-insulated switchgear |
| 04/24/2013 | CN102024609B Method and device for blocking leakage of sulfur hexafluoride |
| 04/24/2013 | CN101809700B Pole part of a medium-voltage switching device |
| 04/24/2013 | CN101789327B Combined appliance of indoor high-voltage vacuum load switch and high-voltage fuse |
| 04/24/2013 | CN101667506B Vaccum circuit breaker |
| 04/24/2013 | CN101393815B Power resistor for high voltage power switch |
| 04/24/2013 | CN101084564B High voltage switchgear |
| 04/23/2013 | US8427013 Power supply circuit and electronic device |
| 04/23/2013 | US8426760 High-voltage circuit breaker having a switch for connection of a closing resistor |
| 04/23/2013 | US8426759 Vacuum circuit breaker |
| 04/23/2013 | US8426758 Medium voltage switch unit |
| 04/18/2013 | US20130092659 Vacuum switch tube |
| 04/18/2013 | US20130092658 Modular solid dielectric switchgear |
| 04/18/2013 | DE102011116158A1 Laststufenschalter OLTC |
| 04/17/2013 | CN202888710U Solid insulated totally-enclosed ring main unit |
| 04/17/2013 | CN202888066U Pressure lever type energy storage operating mechanism for vacuum circuit breaker |
| 04/17/2013 | CN202888065U 40.5KV outdoor high-voltage vacuum circuit breaker |
| 04/17/2013 | CN202888064U Long-service-life vacuum arc-extinguishing chamber |
| 04/17/2013 | CN202888063U Miniature low-voltage ceramic vacuum switching tube |