| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 05/20/2009 | CN201242964Y Indoor DC high-voltage isolating switch |
| 05/20/2009 | CN101436484A Mechanical interlocking mechanism for stationary type high voltage switch cabinet |
| 05/20/2009 | CN100490041C Isolated switch main contact for circuit breaker combined electric appliance |
| 05/19/2009 | US7535129 Method and apparatus for transfer of a critical load from one source to a back up source using magnetically latched relays |
| 05/19/2009 | US7535128 Temperature detector |
| 05/14/2009 | WO2009060513A1 Switch |
| 05/14/2009 | WO2009060512A1 Switch |
| 05/14/2009 | WO2009059824A1 Connection module and switching device having a connection module |
| 05/14/2009 | DE20321748U1 Mittelspannungsschaltanlage Medium voltage switchgear |
| 05/13/2009 | CN201238159Y GW4-110 type isolation switch examination stand |
| 05/13/2009 | CN201237998Y Epoxy-pouring full-insulation solid isolation switch |
| 05/13/2009 | CN201237997Y Electric control device for double-pole isolation switch of rail traffic |
| 05/13/2009 | CN201237996Y Isolation switch handle structure with multi-gear buffering function |
| 05/13/2009 | CN201237995Y Auxiliary earthing apparatus for isolation switch |
| 05/13/2009 | CN201237994Y Spring sensing finger for high voltage switch |
| 05/12/2009 | US7532103 Composite insulator for fuse cutout |
| 05/12/2009 | US7531920 Driving circuit |
| 05/06/2009 | CN201234061Y Cylinder switch for coal stope |
| 05/06/2009 | CN201233812Y Energy accumulation handle for circuit breaker |
| 05/06/2009 | CN101425662A Micro metal full-enclosed vacuum switch cabinet |
| 05/06/2009 | CN101425420A Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet |
| 05/06/2009 | CN101425419A Conversion operation mechanism for high-voltage switch cabinet isolation switch |
| 04/30/2009 | DE102007051419A1 NH-Sicherungslasttrenner mit Stromwandler NH fuse switch disconnectors with current transformer |
| 04/29/2009 | CN201230160Y Novel metal enclosed high voltage switch cabinet |
| 04/29/2009 | CN201229892Y Intelligent high voltage dual power supply converting switch |
| 04/29/2009 | CN201229891Y Intelligent high voltage dual power supply converting switch |
| 04/29/2009 | CN201229887Y Overheating prevention knife brake |
| 04/29/2009 | CN201229886Y 户外隔离开关夹具 Outdoor isolation switch fixtures |
| 04/29/2009 | CN201229885Y Tubular contact arm for outdoor isolation switch |
| 04/29/2009 | CN201229884Y Fast grounding switch |
| 04/29/2009 | CN100483590C Conversion separation switch |
| 04/28/2009 | US7525320 Voltage control circuit for endoscope |
| 04/22/2009 | EP2051272A1 Set of disconnecting switches for a medium- and high-voltage electric substation in a metal enclosure |
| 04/22/2009 | EP1683171A4 Bypass recloser assembly |
| 04/22/2009 | CN201226323Y Ganged structure for isolating switch |
| 04/22/2009 | CN201226322Y Knife-touching compacting structure for isolating switch |
| 04/22/2009 | CN201226321Y Indoor isolating switch knife-operating structure |
| 04/22/2009 | CN100481661C Shutter |
| 04/16/2009 | WO2006091631A3 Degradation sensor for environmentally sensitive products and method of use |
| 04/16/2009 | US20090095610 Method and device for maintenance of high-voltage switchgear with voltage |
| 04/15/2009 | CN201222610Y Protection device for transformer substation electric switching operation |
| 04/15/2009 | CN201222449Y Grounding switch operation mechanism |
| 04/15/2009 | CN101409173A Operating mechanism for tri-station isolating switch of gas insulated metal sealing switchgear |
| 04/15/2009 | CN101409172A Electrically-operated mechanism for middle-low-tension switch cabinet grounding switch |
| 04/15/2009 | CN100479079C Heavy duty relay with resilient normally-open contact |
| 04/09/2009 | DE102007043133B3 Lasttrennschalter Switch disconnectors |
| 04/08/2009 | EP2044603A1 Switch for a switching unit for energy supply and distribution |
| 04/08/2009 | CN201219176Y Slide rail mechanism used for isolation switch installation |
| 04/08/2009 | CN201219082Y High-voltage direct current isolation switch |
| 04/08/2009 | CN201219081Y Reset mechanism suitable for operating handle lock suspension of isolation switch |
| 04/08/2009 | CN201219075Y Examination tool for clamping spring of isolation switch |
| 04/08/2009 | CN201219070Y Connection device for moving and fixed contacts |
| 04/08/2009 | CN101404227A High voltage isolation switch |
| 04/08/2009 | CN101404226A High voltage ground switch |
| 04/01/2009 | EP2041763A1 Electrical switching device having contact piece displaceable along an axis of movement |
| 04/01/2009 | CN201215779Y Bearing seat for outdoor high-voltage isolating switch |
| 04/01/2009 | CN100474720C Gas-insulated switch gear |
| 04/01/2009 | CN100474477C Mechanical control device for an electrical switchgear, provided with a selection lever |
| 03/31/2009 | US7511510 Nanoscale fault isolation and measurement system |
| 03/26/2009 | WO2009037022A1 Fused load disconnector with double contact guard for variable connecting direction |
| 03/26/2009 | WO2009010359A3 Arrangement comprising a load interrupter and a grounding switch |
| 03/25/2009 | CN201213107Y Indoor direct-action type isolation switch |
| 03/25/2009 | CN201213106Y Bipolar isolation switch for railway traffic |
| 03/25/2009 | CN101393812A Assembler for fast assembling and disassembling contact tip of high-voltage isolation switch |
| 03/19/2009 | WO2009033880A1 Load interrupter |
| 03/19/2009 | WO2009033875A1 Load interrupter |
| 03/19/2009 | WO2009033867A1 Load interrupter |
| 03/19/2009 | US20090076678 Cellular Phone Configured with Off-Board Device Capabilities and Starter/Charger and Battery Testing Capabilities |
| 03/18/2009 | CN201210598Y Installation apparatus for 35KV isolating switch controlling mechanism |
| 03/18/2009 | CN201210461Y 35kV outdoor AC high isolating switch |
| 03/18/2009 | CN201210455Y Rotary interlocking operation mechanism for outgoing line cabinet |
| 03/12/2009 | US20090067777 Pipeline security system |
| 03/11/2009 | CN201207352Y Ultra-high voltage low corona combined column type isolation switch |
| 03/11/2009 | CN201207351Y Operating mechanism for isolation switch |
| 03/11/2009 | CN201207350Y Load isolating switch |
| 03/11/2009 | CN101385108A Electrical switching device |
| 03/11/2009 | CN101383487A Looped network cabinet having interlocking mechanism |
| 03/11/2009 | CN101383242A Intelligent dual-power switching device |
| 03/11/2009 | CN101383241A Solid insulation electricity isolation device |
| 03/04/2009 | EP2031622A2 Low voltage safety breaker with park function |
| 03/04/2009 | EP2031621A2 Low voltage block safety breaker switch with window |
| 03/04/2009 | CN100466130C Linked middle voltage switch with load, insulation, grounding electric function |
| 02/26/2009 | DE102007044390B3 Sicherungslasttrennschalter mit doppeltem Berührungsschutz für veränderbare Anschlussrichtung Fuse switch disconnectors with double shock protection for modifiable connection direction |
| 02/25/2009 | CN101375362A Contact system for a short-circuiting device in a medium-voltage or high-voltage switchboard plant |
| 02/19/2009 | WO2009021882A1 Switch arrangement for a switchgear assembly |
| 02/19/2009 | DE102008028933A1 Stromkreisunterbrechungsvorrichtung Circuit interrupting device |
| 02/19/2009 | DE102007043144B3 Lasttrennschalter Switch disconnectors |
| 02/18/2009 | EP2026432A2 Switch module for an electrical switch device |
| 02/18/2009 | EP2026431A2 Switch module for an electrical switch device |
| 02/18/2009 | EP2024985A1 Polyphase switch panel for medium-voltage switchgear assemblies |
| 02/18/2009 | CN201197054Y High voltage opening type combined electrical apparatus |
| 02/18/2009 | CN201197053Y Ultra-high voltage opening type combined electrical apparatus |
| 02/18/2009 | CN201196926Y Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door |
| 02/11/2009 | CN201194203Y Novel dynamic and static blade for high voltage isolation switch |
| 02/05/2009 | US20090033453 Power-circuit breaking device |
| 02/05/2009 | US20090033337 Temporary chip attach test carrier utilizing an interposer |
| 02/04/2009 | EP2020011A1 Switching device for an electrical switchgear assembly for energy distribution |
| 02/04/2009 | CN101359795A Power-circuit breaking device |
| 02/03/2009 | US7486084 Apparatus and method for identifying the presence of high conductivity or permittivity conditions in electrically insulating materials |
| 01/29/2009 | WO2009014603A1 Cutouts with automatic reclosing |