| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 01/23/1992 | WO1992001303A1 Process for operating a power switch |
| 01/23/1992 | DE4023531A1 HV gas blast arc-extinguishing power switch - has spring-biased sliding screen in control of gas flow through turbulence grid into arc chamber |
| 01/22/1992 | EP0467797A1 High voltage circuit breaker |
| 01/20/1992 | CA2046692A1 High voltage disconnecting switch |
| 01/16/1992 | DE4129008A1 Two=part housing vacuum switch - has one part of pot-shaped conductive material and other part of insulating material and two relatively axially moving contacts |
| 01/16/1992 | DE4022262A1 Verfahren zum betrieb eines leistungsschalters A method of operating a circuit breaker |
| 01/15/1992 | EP0466048A2 Fault-current interruption switch |
| 01/15/1992 | CN2093436U Fixed guiding jacket on vacuum switching tube |
| 01/14/1992 | CA1294327C Contact arc suppressor arrangement for a reactor switch |
| 01/08/1992 | EP0465378A1 Low voltage electrical apparatus housing |
| 01/08/1992 | EP0465377A1 High-voltage circuit-breaker with insulating gas and pneumatic control mechanism |
| 01/08/1992 | CN1057737A Gas insulated switching device |
| 01/08/1992 | CN1057733A High-voltage circuit breaker with gas insulation and pneumatic operating mechanism |
| 01/08/1992 | CN1057732A Gas filling circuit breaker |
| 01/07/1992 | US5079392 Gas circuit breaker |
| 01/07/1992 | US5079391 Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker |
| 01/07/1992 | US5077883 Process for fixing a metal screen in the housing of a vacuum switch |
| 01/02/1992 | EP0463491A2 Gas-filling circuit breaker |
| 01/02/1992 | EP0463490A1 Gas insulated switching device |
| 01/02/1992 | DE4119706A1 Vacuum switch contact device - has auxiliary damping mass between each contact disc and its current feed |
| 01/02/1992 | DE4020820A1 High current short-circuit arrangement - with wear protected contacts, esp. for electrolysis plant |
| 12/31/1991 | US5077453 Arc-extinguisher of a switch |
| 12/25/1991 | CN1057362A Circuit breaker with incorporated varistor |
| 12/24/1991 | US5075661 Locking device for a switching device with an electromagnetic actuator |
| 12/24/1991 | US5075544 Optical color change device for detecting electrical abnormality |
| 12/24/1991 | US5075521 Interrupter switch with coordination of disconnect and interrupter linkage |
| 12/24/1991 | US5075520 Contact member for electrical switching devices |
| 12/18/1991 | EP0462024A1 Electric circuit breaker with self generating pressure and arc rotation |
| 12/18/1991 | EP0461629A1 Circuit breaker incorporating a varistor |
| 12/18/1991 | CN2091027U Wireless remotecontrol cut-off switch |
| 12/18/1991 | CN2091026U Inserted outdoor load switch |
| 12/12/1991 | WO1991019308A1 Contact assembly for a vacuum switch tube |
| 12/11/1991 | EP0460390A2 Spring energy accumulator drive for a high voltage switch |
| 12/11/1991 | CN1056949A Operating device for gas circuit breaker |
| 12/11/1991 | CN1015077B Vacuum interrupter |
| 12/10/1991 | US5072084 Gas circuit breaker |
| 12/10/1991 | US5072083 Grounded gas blast circuit breaker/isolating switch with visual inspection assembly |
| 12/05/1991 | DE4018169A1 HV power circuit breaker with arc extinction system - supplies extinction gas to hollow switch contacts by openings blocked by sliders until given point after switch opening |
| 12/04/1991 | EP0459254A2 Operating device for gas circuit breaker |
| 12/04/1991 | EP0458922A1 Process for producing a surface-coated component, especially a contact member for a vacuum switch, and device for implementing the process. |
| 12/04/1991 | CN1056767A Series arc type high-tension breaker |
| 12/04/1991 | CN1056766A Medium or high tension circuit breaker haring abutting arcing contacts |
| 12/03/1991 | US5069077 Actuating mechanism for a vacuum-type interrupter with a contact spring |
| 11/27/1991 | EP0458236A1 Medium high voltage circuit breaker |
| 11/27/1991 | CN2089656U Driving device for high voltage vacuum braker |
| 11/27/1991 | CN1014943B Circuit breaker with improved internal expanding and venting system |
| 11/21/1991 | DE4015979A1 Switch combination esp. for transformers on ring mains - incorporates vacuum switch which cannot be closed is load isolator with energy store is already engaged |
| 11/20/1991 | CN1056374A Instantaneous trip device of circuit breaker |
| 11/20/1991 | CN1056373A Shunt reactor switch producing low voltage surge |
| 11/20/1991 | CN1056371A Medium tension circuit-breaker |
| 11/20/1991 | CN1014848B Blow arc-extinguishing mode circuit breaker |
| 11/19/1991 | US5066840 Manual operator for an electrical switch |
| 11/19/1991 | US5066839 High or medium tension circuit breaker |
| 11/13/1991 | EP0456140A2 Contact device for vacuum circuit breaker |
| 11/13/1991 | EP0456139A2 Compression switch |
| 11/13/1991 | EP0456025A1 High voltage circuit interrupter with arc in series |
| 11/13/1991 | CN1056184A High or middle tension breaker with end arc contacts |
| 11/13/1991 | CN1014753B Vacuum switch tube with capsule |
| 11/12/1991 | US5064976 Contact configuration for a vacuum interrupter |
| 11/07/1991 | DE4112113A1 Vacuum switch contact arrangement with two current guides - is for long-term and short-term guidance of arc current struck between oppositely moving coaxial electrodes |
| 11/06/1991 | EP0455564A1 Instantaneous tripping unit for a circuit breaker |
| 11/06/1991 | EP0455039A1 Swivel drive, especially for switch gears |
| 11/06/1991 | EP0454678A1 Gas discharge switch |
| 11/06/1991 | CN2088284U Break of on-off capacitor-bank |
| 11/06/1991 | CN1014663B Vacuum switch device |
| 10/30/1991 | EP0454035A1 Medium or high voltage circuit breaker with about-turn arc-contacts |
| 10/30/1991 | EP0453776A1 Switchgear with a circuit breaker or a load break switch and a fuse |
| 10/25/1991 | CA2040983A1 Hybrid current limiter |
| 10/23/1991 | CN1055621A Multistep arc-suppressing method for high-voltage ac switches |
| 10/22/1991 | US5059753 SF6 puffer recloser |
| 10/22/1991 | US5059752 Vacuum switch |
| 10/17/1991 | DE4117606A1 Contact set for HV vacuum switch - has opposing contact discs around contacts attached to ends of opposing contact rods |
| 10/16/1991 | EP0451724A2 Hydraulic drive |
| 10/16/1991 | CN1055443A Line circuit breaker with changeble resistor auxiliary break |
| 10/16/1991 | CN1014374B Puffer type electrical circuit breaker having high dielectric withstand |
| 10/16/1991 | CN1014373B Insulating switch of high voltage metalchad installation |
| 10/16/1991 | CN1014372B Tank type breaker |
| 10/16/1991 | CN1014371B Electrical circuit breaker with improved dielectric |
| 10/15/1991 | US5057655 Electrical circuit breaker with self-extinguishing expansion and insulating gas |
| 10/15/1991 | US5057654 Interrupting unit with molded housing and shunt current path therethrough |
| 10/15/1991 | US5056702 Low temperature brazing with active titanium or zirconium; corrosion resistance, airtight |
| 10/15/1991 | CA1290798C Kinematic transmission system between the operating mechanism and polesof a moulded insulating case electrical circuit-breaker |
| 10/15/1991 | CA1290797C Vacuum circuit interrupter having heat exchanger for temperature control |
| 10/15/1991 | CA1290650C Three-way hydraulic valve |
| 10/10/1991 | DE4011443A1 HV breaker switch e.g. for overhead lines - has motion conversion drive between linear operating drive and rotary pole shafts |
| 10/09/1991 | EP0450699A2 Enabling means for locking, by a padlock, hand control devices of electromechanical equipments |
| 10/09/1991 | EP0450567A1 High- or medium voltage circuit breaker with abutting arcing contacts |
| 10/09/1991 | EP0450397A2 Shielding for power circuit breaker |
| 10/09/1991 | EP0450194A1 Switch drive mechanism |
| 10/09/1991 | CN1014282B Multiphase circuit breaker for gas-insulated metal cell |
| 10/08/1991 | US5055640 Multi-pin vacuum switch arrangement |
| 10/08/1991 | US5055639 Contact arrangement for a vacuum switch |
| 10/03/1991 | WO1991015025A1 Gas-driven power switch with power-assisted piston |
| 10/02/1991 | DE4010007A1 Pressure gas circuit breaker with driven compression cylinder |
| 10/02/1991 | DE4010006A1 Electrical pressure gas circuit breaker with mechanical compression - quenches gas and has conductor through which current flows in longitudinal direction surrounded by at least one ferromagnetic body |
| 10/02/1991 | CN1014193B High- or medium-tension compressed-gas circuit breaker taking circuit-breaking energy from arc |
| 10/01/1991 | CA1289997C Process for installing a molecular seeve in an electrical apparatus such as acircuit-breaker and apparatus manufactured with said process |
| 10/01/1991 | CA1289995C Electrical switching equipment for high breaking voltages |
| 10/01/1991 | CA1289779C Alloy having improved fatigue crack growth resistance |
| 09/26/1991 | DE4103101A1 Isolating switch for gas-insulated switchgear - has support for rotary location of switch blade and bearing for three=phase drive shaft and earth |