| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 07/22/2008 | US7402771 Circuit breaker |
| 07/17/2008 | US20080169271 Arc-extinguishing composition and articles manufactured therefrom |
| 07/17/2008 | DE102007061988A1 Reihen-Lichtbogenfehler-Stromunterbrecher und Stromunterbrechungs-Verfahren Series arc fault circuit breaker and current interruption method |
| 07/17/2008 | DE102007004950B4 Elektrische Schaltanlage Electrical switchgear |
| 07/16/2008 | EP1943657A1 Current interrupter device having a double compression chamber |
| 07/16/2008 | EP1680792B1 Shielded encapsulated vacuum interrupter |
| 07/16/2008 | CN201087895Y Switch, especially vacuum protection switch |
| 07/16/2008 | CN201087894Y 363KV can-type hexafluoride sulphur circuit breaker |
| 07/16/2008 | CN201087888Y Grid piece type arc-extinguishing equipment |
| 07/16/2008 | CN101223619A Breaker |
| 07/16/2008 | CN101221866A Switching-on buffering mechanism in breaker |
| 07/16/2008 | CN101221865A Magnetic driven switch device of power system |
| 07/16/2008 | CN101221864A Control mechanism of breaker |
| 07/16/2008 | CN101221863A Double coil variable current control circuit of vacuum circuit breaker permanent magnet mechanism |
| 07/16/2008 | CN100403471C High voltage large capcity breaker |
| 07/10/2008 | WO2008082303A1 Switchgear for high pressure environments |
| 07/10/2008 | WO2008080979A2 High-voltage disconnecting circuit breaker and method of operating the same |
| 07/10/2008 | WO2008080878A1 Circuit breaker |
| 07/09/2008 | EP1942514A1 Switchgear for high pressure environments |
| 07/09/2008 | EP1829076B1 High power circuit breaker with sealing against hot arcing gasses |
| 07/09/2008 | EP1631977B1 Rocker unit for moving a displaceable contact of a switching device |
| 07/09/2008 | CN201084639Y A low-pressure vacuum breaker actuating mechanism |
| 07/09/2008 | CN201084638Y A vacuum switch with a double-operation mechanism |
| 07/09/2008 | CN201084637Y A shielding cylinder used in glass vacuum arc-extinguishing chamber |
| 07/09/2008 | CN201084636Y A capacitor bank fling-cut special vacuum switch |
| 07/09/2008 | CN201084635Y A large-capacity vacuum load switch |
| 07/09/2008 | CN201084634Y An integrated solid-sealed vacuum breaker |
| 07/09/2008 | CN201084633Y A solid-sealed pole |
| 07/09/2008 | CN201084632Y A 10kV-duty switch electric operation device |
| 07/09/2008 | CN201084631Y A high-pressure locking isolation switch on outdoor post |
| 07/09/2008 | CN201084630Y A composite high-pressure switch and knife-switch overhauling desk |
| 07/09/2008 | CN101217078A A permanent magnetic actuator vacuum circuit breaker assembly with series resistance |
| 07/09/2008 | CN100401444C Switchgear |
| 07/09/2008 | CN100401443C Switch device |
| 07/09/2008 | CN100401442C Blocking device |
| 07/09/2008 | CN100401441C Switch device |
| 07/09/2008 | CN100401437C Insulated operating rod |
| 07/08/2008 | US7397339 Method for ambient temperature compensating thermostat metal actuated electrical devices having a plurality of current ratings |
| 07/08/2008 | US7397012 High current switch and method of operation |
| 07/03/2008 | WO2008078178A2 Compact isolator switch for medium and high voltage |
| 07/03/2008 | WO2008077878A1 Insulating housing |
| 07/03/2008 | US20080156775 Circuit breaker and opening and closing method thereof |
| 07/02/2008 | EP1939910A1 Gas blast circuit breaker with a radial flow opening |
| 07/02/2008 | EP1939909A2 Circuit breaker and opening and closing method thereof |
| 07/02/2008 | EP1939908A1 Method of operating a circuit breaker |
| 07/02/2008 | EP1939907A1 Circuit breaker |
| 07/02/2008 | EP1938350A1 Dielectric insulation seal for a vacuum tube |
| 07/02/2008 | EP1938349A1 Electric switching device arrangement |
| 07/02/2008 | CN201081810Y Mechanical closing device for permanent magnetic vacuum breaker |
| 07/02/2008 | CN101211726A Air circuit breaker with arc extinguishing apparatus |
| 07/01/2008 | US7393017 Pocket-sized travel book |
| 06/26/2008 | WO2007149976A3 Separate tanks for a power distribution transformer and a high voltage switch |
| 06/26/2008 | DE102006062225A1 Isolationsgehäuse Insulating housing |
| 06/25/2008 | EP1192631B1 Encapsulated magnetically actuated vacuum interrupter with integral bushing connector |
| 06/25/2008 | CN101208763A Vacuum bulb for an electrical protection apparatus, such as a switch or a circuit breaker |
| 06/25/2008 | CN101206971A Fluorocarbon insulation load switch |
| 06/25/2008 | CN101206970A Outdoor high-voltage locking isolating switch on pole |
| 06/25/2008 | CN101206969A High-voltage combined falling switch on pole outdoor |
| 06/25/2008 | CN100397737C Gas insulation switch device |
| 06/25/2008 | CN100397538C Double turn type longitudinal magnetic field contact for vacuum arc extinguishing chamber |
| 06/25/2008 | CN100397534C Automatic change-over switch electric appliance |
| 06/24/2008 | US7391605 Encapsulated gas-insulated switchgear assembly |
| 06/24/2008 | US7391133 Hybrid switch |
| 06/24/2008 | US7390984 High power liquid dielectric switch |
| 06/19/2008 | US20080142486 Circuit breaker with adjustable arc-flash protection and wireless sensor and method of use |
| 06/19/2008 | US20080142485 Method for producing breaker pole parts for low-voltage, medium-voltage and high-voltage switchgear assemblies, and breaker pole part itself |
| 06/19/2008 | DE102006058042A1 Kontaktantriebsanordnung Contact drive arrangement |
| 06/18/2008 | EP1933432A1 Gas-insulated switching device and gas circuit breaker |
| 06/18/2008 | EP1933348A1 High voltage circuit breaker with a gear with dead-center position |
| 06/18/2008 | EP1933347A1 High voltage insulator with glue coupling |
| 06/18/2008 | EP1933346A1 A method and an apparatus for controlling an electric switching device |
| 06/18/2008 | CN201075361Y Breaker permanent magnet control mechanism |
| 06/18/2008 | CN201075360Y Breaker insulating cartridge |
| 06/18/2008 | CN201075356Y Rotating arc pulse power switch |
| 06/18/2008 | CN201075355Y Outdoor high-voltage permanent magnetism mechanism vacuum circuit breaker |
| 06/18/2008 | CN201075354Y Sulfur hexafluoride switch outgoing line operating mechanism |
| 06/18/2008 | CN201075353Y Sulfur hexafluoride switch incoming line operating mechanism |
| 06/18/2008 | CN201075323Y Permanent magnetism equipment with magnetic confining force control apparatus |
| 06/18/2008 | CN101202175A Circuit breaker with a gear having a dead point |
| 06/17/2008 | US7388169 Electrical device with fixed contacts, mobile contacts and inspectable arc chambers |
| 06/12/2008 | WO2008068135A1 Gear for electrical circuit breakers |
| 06/12/2008 | US20080135523 Self-blast circuit breaker with control body |
| 06/12/2008 | US20080135522 High-voltage switch with a metal container filled with insulating gas |
| 06/11/2008 | EP1930930A1 Transmission for a high-voltage circuit breaker |
| 06/11/2008 | EP1930929A1 High-tension circuit breaker with a metal tank filled with dielectric gas |
| 06/11/2008 | EP1930928A2 Contact drive assembly |
| 06/11/2008 | EP1929496A1 Method and apparatus for the sonic detection of high pressure conditions in a vacuum switching device |
| 06/11/2008 | EP1402546B1 Electrodynamic linear drive |
| 06/11/2008 | CN201072728Y Central vacuum circuit breaker with casting integrated arc-extinguishing chamber |
| 06/11/2008 | CN201072727Y Sealing device for operation mechanism of high-voltage circuit-breaker |
| 06/11/2008 | CN201072714Y Arc extinguishing grid device |
| 06/11/2008 | CN101197221A High-voltage circuit-breaker |
| 06/11/2008 | CN101197220A High-tension circuit breaker with a metal tank filled with dielectric gas |
| 06/11/2008 | CN101197217A Electric motor operation switch with engaging and disengaging gear |
| 06/11/2008 | CN101196547A Live testing apparatus for local discharge based on ultrasound assistance |
| 06/11/2008 | CN100394524C Breaker of large-capacity vacuum short-cut current |
| 06/10/2008 | US7385155 Apparatus for securing a conductor in a power switching device |
| 06/05/2008 | WO2008065757A1 Apparatus and method for compressing exciting inrush current of transformer |
| 06/05/2008 | WO2008064946A1 A method and an apparatus for predicting the future behavior of currents in current paths |
| 06/05/2008 | DE19704933B4 Masttrennschalter Pole isolating switch |