| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 04/07/2010 | EP2172956A2 A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear. |
| 04/06/2010 | US7692113 Switch assembly |
| 03/31/2010 | EP2168131A2 Arrangement comprising a load interrupter and a grounding switch |
| 03/31/2010 | CN201435369Y Disconnector knife fuse socket of distribution transformer fuse box |
| 03/31/2010 | CN201435339Y 10kV electric disconnecting switch |
| 03/31/2010 | CN201435338Y Isolation switch with protection device |
| 03/31/2010 | CN101685945A Repair hoisting device and method for isolating switch |
| 03/31/2010 | CN101685721A Outdoor break-type high-voltage automatic switch |
| 03/25/2010 | WO2010031290A1 Epoxy resin casted solid insulation switch with double isolators |
| 03/25/2010 | US20100073013 Validation of arc flash detection systems |
| 03/25/2010 | US20100073012 Method for detecting water leakage of coil and water leakage detector applicable to this method |
| 03/25/2010 | US20100072175 Electrical switching device having a contact piece which can move along a movement axis |
| 03/24/2010 | CN201430103Y Single-post single-arm vertical retractable outdoor three-phase high-voltage alternating-current isolating switch |
| 03/24/2010 | CN201430102Y High voltage isolator |
| 03/24/2010 | CN201430101Y Fuse knife switch with split-phase handle covers |
| 03/24/2010 | CN201430100Y Automatic pull rod |
| 03/24/2010 | CN201430099Y 40.5kV shielding type grounding switch |
| 03/24/2010 | CN201430098Y Rotary electric connecting device of outdoor high voltage disconnector |
| 03/24/2010 | CN201430097Y Pressure spring type balancing spring structure |
| 03/24/2010 | CN201430084Y On-site tripping and closing switch position indicator of 500kV switching mechanism box |
| 03/24/2010 | CN101682155A RF switch device |
| 03/24/2010 | CN101677178A Epoxy pouring solid insulation switch with double-isolation |
| 03/24/2010 | CN101677177A Epoxy pouring type solid insulation switch with three-cabin |
| 03/24/2010 | CN101677176A Integrated prepackage type transformer station |
| 03/23/2010 | US7683630 Self test, monitoring, and diagnostics in grouped circuitry modules |
| 03/17/2010 | CN201425915Y High voltage alternating current isolating switch |
| 03/17/2010 | CN201425914Y Isolating switch fuse set |
| 03/17/2010 | CN201425913Y Outdoor composite insulation high voltage isolator |
| 03/16/2010 | US7677915 Electrical contact element for medium or high voltage electrical equipment, and corresponding, method and equipment |
| 03/11/2010 | US20100060294 Timing generator and semiconductor test apparatus |
| 03/10/2010 | EP2160805A1 Rf switch device |
| 03/10/2010 | CN201421956Y Emergency brake separating mechanism device in high-pressure switch cabinet |
| 03/10/2010 | CN201421797Y Outdoor alternating current high-voltage single-pole isolating switch. |
| 03/10/2010 | CN201421796Y Falling type insulator with hollow inner part |
| 03/10/2010 | CN101667503A Miniaturized ground switch |
| 03/03/2010 | CN201417704Y Grounding switch of 126kV composite electrical appliance |
| 03/03/2010 | CN201417703Y Indoor high-voltage isolation switch |
| 03/03/2010 | CN201417702Y An improved mechanism of a mesohigh switch divide-shut brake device |
| 03/03/2010 | CN201417701Y Device capable of reducing the operating force of disconnecting switch |
| 03/03/2010 | CN101661848A Contact assembly of isolating switch |
| 03/02/2010 | US7671604 Nanoscale fault isolation and measurement system |
| 03/02/2010 | US7671488 Voltage substitution device and method of use thereof |
| 02/25/2010 | US20100045305 Method and system for partial discharge testing of an insulation component |
| 02/25/2010 | US20100045304 Method of testing insulation property of wafer-level chip scale package and teg pattern used in the method |
| 02/24/2010 | CN201413946Y Emergency brake separating and closing device of high pressure switch apparatus |
| 02/24/2010 | CN201413794Y Earthing switch for 252kV gas insulated switchgear |
| 02/24/2010 | CN201413793Y Three-phase mechanical actuator linkage system for breaker of 252kV gas insulated switchgear |
| 02/23/2010 | US7667466 Target tester interface |
| 02/17/2010 | CN201408697Y High pressure isolating switch |
| 02/17/2010 | CN201408696Y Contact finger device of high-voltage isolating switch contact |
| 02/17/2010 | CN201408695Y Crank type isolating switch operating lever |
| 02/17/2010 | CN201408694Y Folding type isolating switch operating lever |
| 02/17/2010 | CN201408693Y Rocker type isolating switch operating lever |
| 02/17/2010 | CN201408692Y Straight rod type isolating switch operating lever |
| 02/17/2010 | CN201408678Y Switching and interlocking mechanism of high-voltage operating mechanism |
| 02/17/2010 | CN100590762C Outdoor AC high voltage ground switch |
| 02/11/2010 | US20100033199 Holding member for inspection, inspection device and inspecting method |
| 02/11/2010 | US20100033192 Method for testing the functionality of a field device for an industrial process and field device for an industrial process |
| 02/11/2010 | DE202009015602U1 Selbstfedernder Stromgleitkontakt Even Resilient Stromgleitkontakt |
| 02/10/2010 | CN201402771Y Double-post horizontal rotation type outdoor tri-phase high-voltage alternating-current disconnector |
| 02/10/2010 | CN201402770Y Electric control mechanism used for AC high-voltage isolation switch |
| 02/10/2010 | CN201402753Y Isolating and earthing switch operating mechanism for combined electrical apparatus |
| 02/10/2010 | CN101645366A Electric isolating switch |
| 02/09/2010 | US7659728 Method and apparatus for measuring degradation of insulation of electrical power system devices |
| 02/04/2010 | US20100026335 Leak current detection circuit, body bias control circuit, semiconductor device, and semiconductor device testing method |
| 02/04/2010 | US20100026314 System and method for on-chip jitter injection |
| 02/03/2010 | CN201398027Y Interlock device for grounding switch of metal-clad switchgear and cable chamber door |
| 02/03/2010 | CN100587883C Vacuum switchgear |
| 02/03/2010 | CN100587882C Cylinder typed isolation switch combining ultra-high voltage and low corona |
| 02/03/2010 | CN100587881C Fuse cutout with improved dropout performance |
| 01/27/2010 | CN201393003Y Load switch of inflatable ring network switching device |
| 01/27/2010 | CN201392763Y Switch linking mechanism with three functions of loading, insulating and earthing |
| 01/27/2010 | CN201392762Y Ground switch |
| 01/27/2010 | CN201392761Y Load switch protective masking cover on rod |
| 01/27/2010 | CN201392740Y Three-position switch operation mechanism |
| 01/21/2010 | US20100013510 Systems and methods for defect testing of externally accessible integrated circuit interconnects |
| 01/21/2010 | US20100013496 Branch circuit black box |
| 01/21/2010 | DE102008033186A1 Schaltvorrichtung für eine elektrische Schalteinheit insbesondere einer Mittelspannungsschaltanlage Switching device for an electrical switching unit, in particular a medium-voltage switchgear |
| 01/20/2010 | EP2146361A2 Switching device for an electrical switching unit, in particular a medium voltage switching assembly |
| 01/20/2010 | CN201387837Y Dual-column horizontal retractable outdoor three-phase high voltage AC isolating switch |
| 01/20/2010 | CN201387836Y Three-column flip horizontal outdoor three-phase high-voltage AC isolating switch |
| 01/20/2010 | CN201387835Y Switchgear for high-voltage enclosed-type assembled electrical appliance |
| 01/20/2010 | CN100583340C Fasten type high-voltage isolation switch |
| 01/20/2010 | CN100583339C Switching device with a disconnection and/or grounding function |
| 01/20/2010 | CN100583332C Electric operating mechanism of outdoor AC high-voltage segregate switch |
| 01/19/2010 | US7649149 Method and device for maintenance of high-voltage switchgear with voltage |
| 01/13/2010 | CN201383460Y High-voltage isolating switch conducting arm |
| 01/13/2010 | CN201383459Y High-voltage isolating switch outlet base component |
| 01/13/2010 | CN201383458Y Bar-type self-operated conductive structure for high-voltage disconnecting switch |
| 01/13/2010 | CN201383457Y Wire holder structure for high-voltage disconnecting switch |
| 01/13/2010 | CN101625937A Cut-off device for separating or connecting two parts of an electric circuit, including a voltage transformer |
| 01/12/2010 | US7646203 Defect detection system with multilevel output capability and method thereof |
| 01/07/2010 | WO2010000799A1 Disconnector for switchgear |
| 01/07/2010 | US20100001739 Test tray for test handler |
| 01/07/2010 | US20100001589 Power supply circuit for motherboard |
| 01/06/2010 | EP2141719A1 Fixed disconnector |
| 01/06/2010 | CN201378540Y High-power high-frequency switch knife set and switch |
| 01/06/2010 | CN201378539Y Linear isolating switch |
| 01/06/2010 | CN201378538Y Isolating switch |
| 01/06/2010 | CN201378537Y Isolating switch with quick separation function |