| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/08/1994 | EP0600071A1 Manual override mechanism for a remote controlled circuit breaker |
| 06/08/1994 | CN1024970C Gas-blast electrical circuit breaker |
| 06/08/1994 | CN1024969C High tension circuit breaker having varistors |
| 06/07/1994 | US5319168 Circuit breaker retractable handle mechanism |
| 06/01/1994 | EP0599742A1 Off-and-on mechanism for an electric medium-high or high voltage circuit breaker |
| 06/01/1994 | CN1024861C Switch operation device |
| 05/27/1994 | CA2109986A1 Opening and closing mechanism for a medium or high voltage electrical switch |
| 05/26/1994 | WO1994011893A1 Shield-type electric disconnecting switch with improved dielectric characteristics |
| 05/26/1994 | DE4239419A1 Power switchgear casing with driving cranks releasable from shaft - has bore through each crack for fixing bolt extending through common coupling rod into blind hole in casing |
| 05/25/1994 | CN2166513Y High-voltage loading switch |
| 05/25/1994 | CN1087202A Gas-insulated disconnector provided with structure for suppressing metal particles contamination |
| 05/24/1994 | US5315081 Vacuum switching tube for low-voltage and medium-voltage switches, particularly for vacuum contactors |
| 05/19/1994 | DE4238769A1 Vacuum relay with thin-walled screening elements around contacts - has composite ceramic and metallic cap through which moving-contact support rod protrudes from armature of electromagnet |
| 05/18/1994 | EP0597434A2 Vacuum interrupter |
| 05/17/1994 | US5313106 Circuit-parameter sensing device |
| 05/17/1994 | US5313030 Vacuum switch |
| 05/14/1994 | CA2103015A1 Method and device for preventing liquefaction of gas in a container |
| 05/04/1994 | EP0595603A1 Overcurrent protection device with programmable communications and inactivity feature |
| 05/04/1994 | CN2164108Y Electric-operated indoor ac high-voltage load switch |
| 05/03/1994 | CA1329234C Metal-enclosed, pressurized gas-insulated high-voltage switching installation with insulated grounding switch |
| 05/03/1994 | CA1329233C Dielectric barrier for a vacuum interrupter |
| 04/28/1994 | DE4341714A1 Vacuum switch contact arrangement - has contacts in form of discs with chamber having internal slots and windings |
| 04/27/1994 | EP0593902A1 Medium-voltage switchgear |
| 04/27/1994 | EP0593498A1 Isolating switch with a main switch pin and an auxiliary contact pin. |
| 04/27/1994 | CN1086044A Automatic arc-extinguishing breaker with high voltage and super-high voltage |
| 04/26/1994 | CA2006934C High and medium voltage airblast circuit breaker |
| 04/21/1994 | DE4233200A1 Electrical switch appts. with plug-in connections - uses opposing spring contact tongues attached to end of flexible current band fitting either side of stationary current rail |
| 04/20/1994 | EP0593019A1 Resistor-provided UHV breaker |
| 04/20/1994 | EP0592742A1 Isolator switch with improved breaking capacity and vertical opening movement |
| 04/20/1994 | CN1024305C Housings with safety pressure relief means thereon |
| 04/19/1994 | US5304762 Gas-blast circuit breaker |
| 04/19/1994 | US5304760 Ultra-high-tension circuit-breaker |
| 04/14/1994 | WO1994008348A1 Electromagnetically operated switching device |
| 04/14/1994 | WO1994008347A1 Vacuum-type circuit breaker with connection terminals |
| 04/13/1994 | EP0591591A1 Isolating switch with snap opening |
| 04/13/1994 | CN2162015Y Dual-purpose high voltage ring net switch cubicle |
| 04/13/1994 | CN2161983Y Adjustable structure for automatic air switch interlocking device |
| 04/12/1994 | US5303111 Superconducting coil protective system |
| 04/12/1994 | US5302784 Circuit breaker inertia contact assembly for resistance insertion during opening and closing operations |
| 04/06/1994 | EP0591039A1 H.T. self-blast circuit breaker having an arc chamber with reduced gas compression |
| 03/30/1994 | CA2107017A1 Air blast high voltage circuit breaker having a reduced syze air compression arc chute |
| 03/29/1994 | US5298703 Gas circuit breaker |
| 03/29/1994 | US5298702 Pressure medium drive for closing and opening the contacts of a circuit-breaker |
| 03/29/1994 | CA1328121C Stored-spring-energy drive for a high-voltage circuit breaker |
| 03/24/1994 | DE4224593A1 HV breaker switch operating mechanism - with switch arm having two guide pins cooperating with respective guides providing combined pivot and displacement movement |
| 03/23/1994 | EP0588709A1 Circuit breaker with heat shrunk fixed elements |
| 03/23/1994 | EP0588085A1 Method of controlling a hydraulic actuator |
| 03/23/1994 | EP0587611A1 Dc vacuum relay device. |
| 03/23/1994 | CN2159611Y 高压真空负荷开关 High-voltage vacuum load switch |
| 03/22/1994 | US5296662 Electric switching device |
| 03/22/1994 | US5296661 Hybrid circuit-breaker for interrupting currents having high dc components |
| 03/22/1994 | CA2007397C High/medium voltage circuit breaker |
| 03/16/1994 | EP0586733A1 Snap action driving arrangement for circuit breakers |
| 03/16/1994 | CN1083967A Hydraulic operation structure of high-voltage breaker |
| 03/15/1994 | US5294761 Nickel-silicon-copper alloy |
| 03/09/1994 | CN2158568Y High voltage switch |
| 03/08/1994 | US5293506 Vacuum switch tube including windmill electrodes |
| 03/08/1994 | US5293014 Circuit breaker with triple movement for high or medium voltages |
| 03/02/1994 | CN1023924C Series arc type high-tension breaker |
| 03/02/1994 | CN1023923C Operating mechanism for pneumatic switch |
| 03/01/1994 | US5291369 Three-pole, metal-encased, pressurized-gas-insulated, high-voltage switchgear |
| 02/22/1994 | US5288958 Lockable remote rotary handle operator for circuit breakers |
| 02/17/1994 | DE4226772A1 Vacuum valve module - has switch shutter as connector member between magnet drive and movable switch of vacuum tube. |
| 02/16/1994 | EP0582906A1 Switch |
| 02/15/1994 | US5286936 Circuit breaker driving device |
| 02/15/1994 | US5286933 Vacuum circuit-breaker equipped with self-diagnosis means |
| 02/15/1994 | US5286932 Vacuum bulb provided with electrical insulation |
| 02/15/1994 | CA2002829C Three-phase common container-type circuit breaker |
| 02/09/1994 | EP0582045A1 Apparatus for measuring the concentration of a gas |
| 02/09/1994 | CN1023737C Medium tension circuit-breaker |
| 02/09/1994 | CN1023736C High or middle tension breaker with end arc contacts |
| 02/09/1994 | CN1023735C Jet-blowing type breaker |
| 02/08/1994 | US5285036 Gas-driven power switch with power-assisted piston |
| 02/08/1994 | CA2023033C Medium voltage circuit breaker |
| 02/02/1994 | CN2155065Y Vacuum contactor with fuse |
| 02/02/1994 | CN2155064Y Explosion spacing dual circuit parallel vacuum feeding switch |
| 02/01/1994 | CA2020281C High/medium voltage circuit breaker |
| 02/01/1994 | CA2017804C Dielectric gas blast high voltage circuit-breaker |
| 02/01/1994 | CA2004937C Breaker control |
| 01/27/1994 | DE4324267A1 Load switching contact breaker circuit without arcing - has bridging contact element operated by changing state of saturating reactance element coupled in series |
| 01/27/1994 | DE4304741A1 HV power switch with extinguishing gas - has enclosed contact chamber with gas circulation improved by suction piston built into one compact unit |
| 01/26/1994 | EP0580515A1 Circuit breaker wit two concentric arc chambers |
| 01/26/1994 | EP0580285A2 Auto-reclosers |
| 01/25/1994 | US5281776 Multipole circuit breaker with single-pole units |
| 01/19/1994 | EP0579243A1 Resistor-provided UHV breaker |
| 01/19/1994 | CN1081029A Insulating component and a gas-insulated high voltage apparatus having such an insulating component |
| 01/18/1994 | US5280144 Hybrid circuit breaker with axial blowout coil |
| 01/13/1994 | DE4221951A1 HV switch with arc extinguishing chamber - coupled to arcing region by radial channels inducing turbulence in gas to aid cooling |
| 01/12/1994 | CN2153132Y Operating driving mechanism of vacuum breaker in high-tension user |
| 01/06/1994 | WO1994000866A1 Manual override mechanism for a remote controlled circuit breaker |
| 01/06/1994 | WO1994000862A1 Trip energy monitor |
| 01/06/1994 | CA2115429A1 Manual override mechanism for a remote controlled circuit breaker |
| 01/06/1994 | CA2115358A1 Trip energy monitor |
| 01/05/1994 | EP0577530A1 Self-blast switch or switch breaker |
| 01/05/1994 | EP0577346A2 Gas-insulated high voltage apparatus having an insulating component |
| 01/05/1994 | EP0480922B1 PROCESS FOR PRODUCING A CuCr CONTACT MATERIAL FOR VACUUM SWTICHES |
| 01/05/1994 | DE4329518A1 Vacuum switch contact assembly - has piston unit with electrode and contact disc arrangement set into end surface and having low conductivity |
| 01/05/1994 | CN2152297Y Operation mechanism for isolated switch |
| 01/04/1994 | US5276286 Exposed high voltage outdoor disconnector for operation under icing conditions |
| 01/04/1994 | US5276285 High rupture capacity circuit-breaker |