| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 01/06/2010 | CN201378523Y Novel flexible static arc contact |
| 01/06/2010 | CN101620947A Epoxy-pouring full-insulation solid isolating switch |
| 01/06/2010 | CN101620946A High-pressure tuner-type disconnection switch |
| 12/30/2009 | WO2009111321A3 Faulted cirtuit indicator with fault characteristic detection and display |
| 12/30/2009 | CN201374519Y Integral switching device for high-voltage enclosed type combination electrical apparatus |
| 12/30/2009 | CN201374276Y Isolation switch remote control device |
| 12/30/2009 | CN201374264Y Combination appliance of isolation switch and vacuum circuit breaker |
| 12/30/2009 | CN101615523A Isolating switch with protective device |
| 12/24/2009 | US20090315567 Electrical conditioning of mems device and insulating layer thereof |
| 12/24/2009 | US20090315566 AC Current Sensor for Measuring Electric AC Current in a Conductor and an Indicator System Comprising Such a Sensor |
| 12/23/2009 | CN201369505Y 220KV isolating switch electrification direct-connection short jumper device |
| 12/23/2009 | CN201369280Y Cascade interlocking mechanism of flameproof combination switch case |
| 12/23/2009 | CN201369279Y Enclosed type high-voltage disconnecting switch contact |
| 12/23/2009 | CN201369278Y Isolating switch for ultra-high voltage test device |
| 12/23/2009 | CN201369277Y Disconnecting-grounding switch |
| 12/23/2009 | CN201369276Y Novel isolating switch |
| 12/23/2009 | CN201369275Y Box body structure of high voltage switch actuator |
| 12/23/2009 | CN201369274Y Contact structure of disconnecting switch |
| 12/23/2009 | CN201369266Y On-off limiting device for isolating switch |
| 12/23/2009 | CN201369252Y Universal transmission device and high voltage switch with same |
| 12/23/2009 | CN101609965A Guide rail mechanism for mounting insolating switch |
| 12/23/2009 | CN101609762A Blade-shaped circuit breaker |
| 12/23/2009 | CN101609761A Lock suspension resetting mechanism for operating handle of isolating switch |
| 12/23/2009 | CN100573765C High-voltage grounding isolating switch |
| 12/16/2009 | EP2133897A1 Device for controlling and pressurising a switch for an electric cut-off device with at least two positions |
| 12/16/2009 | CN201364848Y Static contact of high-voltage switch |
| 12/16/2009 | CN201364847Y Isolation tool for isolating switch |
| 12/16/2009 | CN201364832Y Mounting tool for protective cover of isolating switch |
| 12/16/2009 | CN201364827Y Sealed structure of isolating switch control mechanism output shaft |
| 12/16/2009 | CN101604593A Straight-wheel outdoor high voltage AC earthing switch with single columns vertical |
| 12/10/2009 | WO2009127934A3 Transformer housing, transformer bushing and surge arrestor |
| 12/10/2009 | US20090302862 Method and system for monitoring partial discharge within an electric generator |
| 12/09/2009 | CN201360109Y 126KV composite type combined electrical appliance |
| 12/09/2009 | CN201359954Y High-voltage isolating switch |
| 12/09/2009 | CN201359953Y High-voltage grounding switch |
| 12/02/2009 | CN201355577Y Electric operation device for 10 kV load switch |
| 12/02/2009 | CN100565744C Low-voltage combined type fuse blade switch on outdoor pole |
| 11/26/2009 | DE10014055B4 NH-Sicherungsschaltgerät mit Trenneinrichtung NH fuse switch unit with separator |
| 11/25/2009 | CN201352679Y Combined isolating sleeve and isolating switch with same |
| 11/25/2009 | CN201352528Y Improved isolating switch and switch cabinet provided with same |
| 11/25/2009 | CN201352527Y Electric locomotive high voltage separation switch |
| 11/25/2009 | CN201352526Y 10kv outside triphase linkage isolating switch |
| 11/25/2009 | CN201352525Y Interlocking device on air insulated switchgear |
| 11/25/2009 | CN101587794A Trigger device of outside high-voltage isolation switch |
| 11/25/2009 | CN101587793A Conductive connection device of outdoor high-voltage isolation switch |
| 11/25/2009 | CN101587784A Groundswitch of central-positioned cabinet and lock parts of carbinet back door |
| 11/25/2009 | CN100562960C Isolation switch fuse suit |
| 11/24/2009 | US7623041 Portable partial discharge detection apparatus and method thereof |
| 11/19/2009 | US20090284262 Automated liquid crystal analysis instrument |
| 11/19/2009 | DE10108858B4 Schaltkontaktanordnung Switching contact arrangement |
| 11/18/2009 | CN201348970Y Revolving switch device and high voltage switch with revolving switch device |
| 11/18/2009 | CN201348969Y Conductive tube waterproof structure on a high voltage isolating switch |
| 11/18/2009 | CN101582337A Operation mechanism with double output shafts for AC high voltage isolating switch |
| 11/18/2009 | CN101582336A Electric operation mechanism with double output shafts for AC high voltage isolating switch |
| 11/12/2009 | WO2009135817A1 Medium voltage switch unit. |
| 11/11/2009 | EP2117025A1 Medium voltage switch unit |
| 11/11/2009 | CN201345505Y Isolating switch repair operating platform |
| 11/04/2009 | CN201340822Y Outdoor alternating-current high voltage isolating switch |
| 11/04/2009 | CN201340821Y Split type high-voltage isolating switch |
| 11/04/2009 | CN201340807Y Ground contact seat of high-voltage switch |
| 10/29/2009 | US20090266695 Switch for a switchgear assembly for power supply and distribution |
| 10/28/2009 | EP2112675A2 Fuse switch disconnector |
| 10/28/2009 | CN100555495C Indoor integrated insulation switch |
| 10/28/2009 | CN100555494C High-voltage automatic change-over switch |
| 10/27/2009 | US7608793 Remote controlled wall switch actuator |
| 10/22/2009 | WO2009127934A2 Transformer housing, transformer bushing and surge arrestor |
| 10/21/2009 | CN201332045Y High-voltage load switch |
| 10/21/2009 | CN201332044Y Pressure unloading tong for outdoor disconnector sensing finger |
| 10/21/2009 | CN201332043Y Outdoor isolating switch |
| 10/21/2009 | CN201332027Y Electric mechanism for ground switch in high-voltage switch cabinet |
| 10/21/2009 | CN101562087A High-voltage isolating switch of 10KV |
| 10/20/2009 | CA2381237C Switch actuator |
| 10/15/2009 | US20090256577 Delay Lock Loop Circuit, Timing Generator, Semiconductor Test Device, Semiconductor Integrated Circuit, and Delay Amount Calibration Method |
| 10/15/2009 | CA2662237A1 Circuit breaker zone selective interlock for differentiated faults and method of operation |
| 10/15/2009 | CA2662234A1 Circuit breaker having separate restrained and unrestrained zone selective interlock setting capability |
| 10/14/2009 | CN201327780Y Mechanical interlocking device of grounding switch in switch cabinet |
| 10/14/2009 | CN201327778Y Z-shaped sensing finger for three-station switch |
| 10/08/2009 | US20090251154 System and method for testing winding insulation resistance |
| 10/08/2009 | DE102008017987A1 Isolieraufsatz und Isoliergehäuse Isolieraufsatz and insulating |
| 10/07/2009 | EP2107579A2 Isolating attachment and housing |
| 10/07/2009 | CN201323393Y Flameproof enclosure for reactive power compensation device |
| 10/07/2009 | CN201323157Y Isolating switch for high-voltage electrical distribution device in coal mine |
| 10/07/2009 | CN201323156Y Interlocking mechanism for protecting ground switch against faulty operation |
| 10/07/2009 | CN201323155Y Locating mechanism for isolating commutation switch |
| 10/07/2009 | CN101552151A Combined type isolation switch operation tool |
| 10/07/2009 | CN101552144A Control mechanism of multipolar electrical switch |
| 10/07/2009 | CN101552142A Improved current tripping device |
| 10/07/2009 | CN100547710C Interlocking device of high-voltage segregate switch and vacuum contactor and high-voltage switch cabinet door |
| 10/06/2009 | US7598750 Fluid fitting electromagnetic effects test chamber |
| 09/30/2009 | CN201319345Y High voltage direct current isolated switch |
| 09/30/2009 | CN201319344Y Contact structure of high voltage direct current isolated switch |
| 09/30/2009 | CN201319343Y Electromagnetic lock device of high-tension switch |
| 09/30/2009 | CN201319342Y Rotary latch operation mechanism of leading-in cabinet |
| 09/30/2009 | CN201319341Y Grounding switch transmission device of isolating switch |
| 09/30/2009 | CN201319340Y Open type high-voltage combined isolating switch |
| 09/30/2009 | CN201319339Y Isolating switch lower clamping plate |
| 09/30/2009 | CN101546669A Method and device for connecting drop switch leads of 10kv transformer |
| 09/23/2009 | CN201315268Y Interlocking device for emergency door of industrial and mining electric locomotive |
| 09/23/2009 | CN201315267Y Novel high-voltage isolator contact-terminal applying silver-carbon alloy surface |
| 09/23/2009 | CN201315266Y Static contact of grounding switch |