| Patents for H01H 31 - Air-break switches for high tension without arc-extinguishing or arc-preventing means (5,099) |
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| 06/10/1997 | US5638254 Gas insulated switch gear device |
| 06/10/1997 | CA2066194C Earthing switch for a metal-encapsulated high-voltage switchboard plant insulated by pressurised gas |
| 06/03/1997 | US5635692 Contact arrangement for electrical apparatus |
| 05/28/1997 | EP0776021A2 Electric switching device |
| 05/21/1997 | CN1150349A Insulated type switching device |
| 05/07/1997 | EP0772214A2 Electrical switchgear |
| 05/03/1997 | CA2189322A1 Electrical switching device |
| 04/23/1997 | CN1148255A 电流断路器 Circuit Breakers |
| 04/16/1997 | EP0768687A1 Drive mechanism for signalling contacts of an electrical apparatus, particularly of an isolator or a HV earthing switch |
| 04/16/1997 | CN2252399Y High-tension vacuum circuit breaker mechanical interlock protector |
| 04/09/1997 | EP0713607A4 Fuse arrangement |
| 04/02/1997 | EP0766277A2 Insulated type switching device |
| 04/02/1997 | CN2251195Y Tri-positioning vacuum load switch |
| 03/20/1997 | DE19536599A1 T-structure HV power circuit breaker for power distribution plant |
| 03/19/1997 | EP0763839A2 Driving device for the movable contact of a disconnecting and earthing switch |
| 03/18/1997 | US5612661 Resettable internal actuating mechanism for use with an electronic sectionalizer |
| 02/18/1997 | CA2109353C Disconnecting switch |
| 02/05/1997 | CN2246848Y Arc-extinguishing device of electric isolating switch |
| 02/05/1997 | CN1142118A Cut-off device for metal-enclosed and gas-insulated high-voltage switch device |
| 01/22/1997 | CN1140891A Breaker switch |
| 01/15/1997 | CN1140351A Switching device |
| 01/15/1997 | CN1140323A Disconnecting switch |
| 01/14/1997 | US5594610 Pivot-disconnecting circuit breaker |
| 12/31/1996 | US5590019 Device for change-over switching of individual electric motors or groups of electric motors |
| 12/17/1996 | US5584379 Disconnect switch double motion mechanism |
| 12/10/1996 | US5583729 Terminal bushing having integral overvoltage and overcurrent protection |
| 12/03/1996 | US5581051 For an electric power line |
| 11/27/1996 | EP0744803A2 Isolator switch for metal-clad, high voltage switchgear |
| 11/27/1996 | EP0744758A2 High-voltage switchgear |
| 11/27/1996 | CA2167565A1 Disconnector for a metal encapsulated, gas insulated high voltage switchgear |
| 11/26/1996 | US5578805 Metal-enclosed gas-filled switchgear units |
| 11/13/1996 | EP0742568A2 Breaker switch |
| 10/22/1996 | US5566423 Delay mechanism for retarding relative movement between two members |
| 10/10/1996 | WO1996021962A3 Transformer assembly for the field terminal of encapsulated medium-voltage switchgear |
| 10/03/1996 | CA2173178A1 Fuse holder |
| 10/02/1996 | EP0735637A2 Switchgear having a grounded metal casing filled with insulating gas |
| 10/01/1996 | US5560474 Electro/mechanical actuator for circuit disconnect/connect apparatus for overhead power lines |
| 10/01/1996 | CA2095896C Perpendicularly opening grounding switch |
| 10/01/1996 | CA2095894C Vertically opening disconnector and oscillating isolator post |
| 09/29/1996 | CA2168637A1 Switching apparatus |
| 09/24/1996 | US5559488 Current limiting fuse having compact structure |
| 09/15/1996 | CA2171694A1 Pivot-disconnecting circuit breaker |
| 09/10/1996 | CA2052581C Double load break switch and circuit |
| 09/04/1996 | CN2234650Y Vacuum load switch with quartz sand drop-down fuse |
| 08/06/1996 | US5543597 Grounding switch gear device |
| 08/06/1996 | CA2065509C Disconnecting switch with improved breaking capacity in particular a vertical opening disconnect switch |
| 08/01/1996 | WO1996023336A1 Air insulated switchgear with operating device for effect circuit breaker |
| 07/30/1996 | US5541378 Drive device for a power switch |
| 07/24/1996 | EP0723280A1 Load break switch for high tension |
| 07/18/1996 | WO1996021962A2 Transformer assembly for the field terminal of encapsulated medium-voltage switchgear |
| 07/18/1996 | DE19502061A1 Wandleranordnung am Feldanschluß von gekapselten Mittelspannungs-Schaltanlagen Transducer assembly at the field terminal of encapsulated medium-voltage switchgear |
| 07/10/1996 | CN1126385A Metallgekapselte gasisolierte schaltanlage |
| 07/09/1996 | US5534858 Poletop switch automation system |
| 07/02/1996 | US5532668 Universal fuse holder and cut-out with built-in safety features and method |
| 06/20/1996 | DE4445172A1 Panel for switching equipment |
| 06/06/1996 | WO1996017420A1 Electric switching device |
| 05/30/1996 | WO1996016420A1 Disconnect switch double motion mechanism |
| 05/29/1996 | EP0713607A1 Fuse arrangement |
| 05/29/1996 | CN2228264Y Multi-temp electric-heating rug |
| 05/29/1996 | CN2228263Y TV watching rate investigating instrument |
| 05/17/1996 | WO1996014649A1 Positive locking mechanism for in-line switch |
| 05/02/1996 | DE4438215A1 LV fuse circuit-breaker with safety monitor e.g. in industrial switchgear with data telecommunication system |
| 05/01/1996 | CN2226340Y Electromagnetic-started type segmenting apparatus |
| 04/24/1996 | CN1121254A Automatic and safe monitoring device isolated switch |
| 04/22/1996 | CA2134024A1 Power line isolator |
| 04/10/1996 | CN1120234A Load switch with safe |
| 03/28/1996 | DE4436120A1 Contact for MV or HV earthing switch |
| 03/28/1996 | DE4436118A1 Double blade switch contact for MV or HV earthing switch |
| 03/27/1996 | CN2223523Y 110KV indoor AC high-voltage isolating switch |
| 03/27/1996 | CA2159056A1 Load interrupting device for live front padmounted switchgear |
| 03/26/1996 | US5502427 For use in an electrical mounting |
| 02/29/1996 | DE4430046A1 Fused load switching system with handling protection for service personnel |
| 02/13/1996 | CA2077050C Grounding switch with breaking capacity |
| 01/24/1996 | EP0693763A1 M.T. electrical switches |
| 01/24/1996 | CN2218417Y Ring-net fuse cabinet |
| 01/16/1996 | US5485136 Load break disconnecting device with solid arc suppression means |
| 01/10/1996 | CN2217273Y High voltage switch cabinet for 10 KV cable |
| 01/10/1996 | CN2217260Y Disconnecting switch unit |
| 01/09/1996 | US5483031 Gas-insulated disconnector provided with structure for suppressing metal particles contamination |
| 01/09/1996 | US5483030 Group operated circuit disconnect apparatus for overhead electric power lines |
| 12/20/1995 | EP0688071A1 Metal-clad gas-insulated switchgear |
| 12/20/1995 | CN2215768Y Improved automatic cut-off switch |
| 12/20/1995 | CN2215767Y Safety theft-proof gearing device for isolating switch |
| 12/14/1995 | DE4420524A1 Metal-encapsulated gas-insulated switchgear |
| 12/14/1995 | CA2147085A1 Metal-enclosed gas-filled switchgear units |
| 12/07/1995 | DE4441209C1 Rotation direction switching device for electric motor or motor group |
| 12/05/1995 | CA2065512C Fast-acting disconnecting switch |
| 11/08/1995 | CN2212258Y 高压隔离开关 High voltage isolation switch |
| 11/02/1995 | EP0680063A1 Medium voltage electric switch |
| 10/31/1995 | US5463366 Current limiting fuse and dropout fuseholder |
| 10/25/1995 | CN2211126Y Driving mechanism for high-voltage switch box |
| 10/11/1995 | EP0676788A2 Fuse assembly with low exhaust and replaceable cartridge |
| 10/11/1995 | CN1110001A Improved current limiting fuse and dropout fuse-holder |
| 10/10/1995 | US5457292 For interrupting a high voltage electrical circuit |
| 09/20/1995 | EP0673097A2 Gas insulated switch gear device |
| 09/19/1995 | US5451730 Electrical safety apparatus |
| 09/13/1995 | CN2207626Y Electric operating implement for high voltage load disconnecting switch |
| 09/06/1995 | EP0670581A1 Load break switch with fuses, in the form of a drawer unit |
| 09/06/1995 | CN2207017Y Small-sized 10KV switch cabinet with multiple-protection-function |
| 08/08/1995 | US5440287 Current responsive latching apparatus for disconnecting and isolating an electrical device |