| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 04/15/2009 | CN101409176A Major loop structure for vacuum circuit-breaker |
| 04/15/2009 | CN101409175A Combined high-voltage load switch and high-voltage switchgear thereof |
| 04/15/2009 | CN101409174A Isolation interlocking apparatus for complete equipment of 40.5kV vacuum composite apparatus |
| 04/09/2009 | WO2009043771A1 Method for producing a hollow cylindrical component, in particular a shielding for a vacuum switching tube, and vacuum switching tube |
| 04/09/2009 | WO2009043769A1 Tubular component usable as a shield in a vacuum switch tube and method for producing a tubular component usable as a shield in a vacuum switch tube |
| 04/09/2009 | WO2009043361A1 Pole part of a medium-voltage switching device |
| 04/09/2009 | US20090090698 Gassing insulator assembly, and conductor assembly and electrical switching apparatus employing the same |
| 04/09/2009 | US20090090697 Interrupting chamber of a circuit-breaker having two compression volumes |
| 04/09/2009 | DE102007041969B3 Magnetisches Antriebssystem für eine Schalteinrichtung A magnetic drive system for a switching device |
| 04/09/2009 | DE102007023326B4 Elektrische Schalteinrichtung mit einer Lichtbogenlöscheinheit Electrical switching means having an arc extinguishing unit |
| 04/09/2009 | DE102007022875B4 Gehäuse für eine Vakuumschaltröhre und Vakuumschaltröhre A housing for a vacuum interrupter and vacuum switch tube |
| 04/08/2009 | EP2045827A1 Circuit breaker interruptor tube with double compression volume |
| 04/08/2009 | EP2044604A1 Insulating nozzle, comprising a first material and a second material |
| 04/08/2009 | EP1593138B1 Electric contact arrangement |
| 04/08/2009 | CN201219083Y Electronic electromagnetic intelligent switch |
| 04/08/2009 | CN101405825A Electric power supply system and correlative method |
| 04/08/2009 | CN101404229A Circuit breaker interruptor tube with double compression volume |
| 04/08/2009 | CN101404228A Vacuum circuit breaker |
| 04/08/2009 | CN100477052C Switching device and method for estimating the condition of switching device |
| 04/08/2009 | CN100477043C Device for detecting contact wear in switching appliances |
| 04/07/2009 | US7515975 Technique for switching between controllers |
| 04/07/2009 | US7514635 Shaft, method for producing it and device for carrying out the method |
| 04/03/2009 | CA2639584A1 System with circuitry for suppressing arc formation in micro-electromechanical system based switch |
| 04/02/2009 | WO2008002366A8 Vacuum recloser |
| 04/02/2009 | US20090084762 Adjustable switching mechanism for series coupled vacuum interrupters |
| 04/02/2009 | US20090084761 Multi-Vacuum Contactor Control System |
| 04/02/2009 | DE10251656C5 Verfahren zur Bestimmung der Belastung einer Kontaktanordnung Method for determining the load of a contact arrangement |
| 04/01/2009 | EP2043126A2 Vacuum circuit interrupter grounding assembly |
| 04/01/2009 | EP2041764A1 Drive arrangement having a common drive device for a plurality of switchgears of an electric switching device |
| 04/01/2009 | CN201215785Y Air pressure type load switch |
| 04/01/2009 | CN201215784Y Synchronous operation transferring current DC circuit breaker |
| 04/01/2009 | CN201215783Y Novel vacuum loaded switch |
| 04/01/2009 | CN201215782Y Circuit breaker for 15kV indoor high-voltage vacuum electricity generator |
| 04/01/2009 | CN201215781Y 40.5kV permanent magnet sealed indoor high-voltage vacuum circuit breaker |
| 04/01/2009 | CN201215780Y Contact tip component for high-voltage isolation switch |
| 04/01/2009 | CN101399133A Vacuum circuit interrupter grounding assembly |
| 04/01/2009 | CN101399124A Control circuit for bistable state permanent magnet operating mechanism |
| 04/01/2009 | CN100474472C High power hydraulic actuating mechanism |
| 03/31/2009 | US7511243 Power switch comprising an interrupter unit disposed within an encapsulating housing |
| 03/26/2009 | WO2009038499A1 High-voltage vacuum load-breaking switch |
| 03/26/2009 | US20090078681 Vacuum circuit interrupter grounding assembly |
| 03/26/2009 | US20090078680 Arc chamber of a high-voltage switch with a heating volume of variable size |
| 03/26/2009 | US20090077793 High Voltage Operating Rod Sensor and Method of Making the Same |
| 03/26/2009 | DE10339214B4 Magnetischer Betätiger Magnetic actuator |
| 03/26/2009 | DE102007005997B4 Strombegrenzende Lichtbogenlöscheinrichtung Current-limiting arc quenching device |
| 03/25/2009 | EP1618577B1 Vacuum circuit breaker |
| 03/25/2009 | CN201213108Y Novel indoor high voltage vacuum circuit breaker |
| 03/25/2009 | CN101395686A Vacuum circuit breaker of tank type |
| 03/25/2009 | CN101395684A Insulating switching rod with a contact pressure arrangement comprising a plurality of helical compression springs wound in opposite senses |
| 03/25/2009 | CN101393818A High-voltage vacuum circuit breaker |
| 03/25/2009 | CN101393817A Chamber type intelligent duplicate power supply converting switch |
| 03/25/2009 | CN101393816A Electromagnetic hydraulic valve type spring hydraulic operating mechanism having self-defense capability |
| 03/25/2009 | CN101393815A Power resistor for high voltage power switch |
| 03/25/2009 | CN101393814A 72.5kV indoor type high-voltage SF6 circuit breaker |
| 03/25/2009 | CN101393813A Electromagnetic actuator and switching device equipped with such an electromagnetic actuator |
| 03/25/2009 | CN101393805A Site examining and repairing method for electric SF6 switch |
| 03/25/2009 | CN100472685C Method for mains-synchronous switching of circuit breakers, and apparatus for carrying out this method |
| 03/25/2009 | CN100472682C Rotary clutch |
| 03/24/2009 | US7507932 Heavy-duty circuit breaker with movement reversal |
| 03/24/2009 | US7507931 Switching chamber for a gas-insulated high-voltage circuit breaker |
| 03/19/2009 | WO2009034092A1 Insulating switching rod |
| 03/19/2009 | WO2009034083A1 Magnetic drive system for a switching device and method for producing said magnetic drive system |
| 03/19/2009 | WO2009034022A1 High-voltage power switch having a switch for engaging a starting resistor |
| 03/18/2009 | EP2037475A1 Operating mechanism with adjustment of contact force |
| 03/18/2009 | EP2036106A2 Separate tanks for a power distribution transformer and a high voltage switch |
| 03/18/2009 | CN201210463Y Energy storage mechanism of vacuum circuit breaker |
| 03/18/2009 | CN201210462Y Novel anti-error interlocking apparatus for combined electrical appliance |
| 03/18/2009 | CN201210455Y Rotary interlocking operation mechanism for outgoing line cabinet |
| 03/18/2009 | CN201210454Y Intelligent dual-power switching device |
| 03/18/2009 | CN101390179A Arcing chamber of a high voltage circuit breaker with a heating volume receiving the arc extinguishing gases generated by the arc |
| 03/18/2009 | CN101388525A Apparatus for detecting contact corona and arc-drawing of high voltage switch cabinet |
| 03/18/2009 | CN101388301A Operating mechanism with adjustment of contact force |
| 03/18/2009 | CN100470699C Low-voltage integrated appliance |
| 03/12/2009 | WO2009031900A1 Quickly exchangeable switching device in fixed type medium voltage switchgear system |
| 03/12/2009 | WO2009030721A1 Switch pole for a power supply |
| 03/12/2009 | WO2009030661A1 Method and tool for the production of an insulating material part for a switching pole |
| 03/12/2009 | WO2009030442A1 Method for production of a pole part of a medium- voltage switching device, as well as the pole part itself |
| 03/12/2009 | US20090065333 Switch disconnector and switchgear assembly with a switch disconnector |
| 03/12/2009 | DE102007041973B3 Vorrichtung zur Steuerung eines motorisch angetriebenen Schalterantriebs für ein Schaltgerät Device for controlling a motor-driven switch drive for a switching device |
| 03/12/2009 | DE102007004527B4 Elektrisches Gleichstromnetz für Wasserfahrzeuge sowie für Offshoreanlagen DC electrical power for marine propulsion and offshore installations |
| 03/12/2009 | CA2694577A1 Quickly exchangeable switching device in fixed type medium voltage switchgear system |
| 03/11/2009 | EP2034503A1 Low-voltage, medium-voltage or high-voltage switchgear assembly having a short-circuiting system |
| 03/11/2009 | EP2034502A1 Method for production of a pole part of a medium-voltage switching device, as well as the pole part itself |
| 03/11/2009 | EP2034501A1 Quickly exchangeable switching device in fixed type medium voltage switchgear system |
| 03/11/2009 | EP2034500A1 Power resistor for high voltage power switch |
| 03/11/2009 | EP1706880B1 Control for electric power interrupting device |
| 03/11/2009 | CN201207353Y Loading switch extinguishing chamber for inflating cabinet and common-box SF6 looped network cabinet |
| 03/11/2009 | CN201207340Y Manual circuit breaker device for permanent magnet mechanism |
| 03/11/2009 | CN101385109A Switching chamber for a gas-insulated high voltage circuit-breaker |
| 03/11/2009 | CN101385108A Electrical switching device |
| 03/11/2009 | CN101383487A Looped network cabinet having interlocking mechanism |
| 03/11/2009 | CN101383245A Vacuum circuit breaker of switching capacitor group |
| 03/11/2009 | CN101383244A Vacuum circuit-breaker |
| 03/11/2009 | CN101383243A Power switching apparatus and method of controlling the same |
| 03/11/2009 | CN101383242A Intelligent dual-power switching device |
| 03/11/2009 | CN101383238A Intelligent duplicate power supply switching device |
| 03/11/2009 | CN100468594C Porcelain knob breaker |
| 03/11/2009 | CN100468593C Accident indicator for high-voltage vacuum switch |
| 03/11/2009 | CN100468588C Dynamic three coil type double-steady permanent magnetic operating mechanism |
| 03/10/2009 | US7501775 Switching device system, components therefore and methods relating thereto |