| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 06/23/1992 | US5124678 Interrupter actuator |
| 06/22/1992 | CA2058008A1 Jumper switch means and method |
| 06/17/1992 | EP0489986A1 Low tension high power circuit breaker with an insulating connection means and an insulating shield |
| 06/16/1992 | US5122625 Circuit breaker |
| 06/11/1992 | WO1992009997A1 Vacuum switch pole |
| 06/11/1992 | DE4039340A1 Insulator for switchgear - uses hollow moulding to support each side of circuit breaker |
| 06/09/1992 | US5121281 High tension dc current-limiting circuit breaker |
| 06/09/1992 | US5120918 Powder metallurgy |
| 06/03/1992 | EP0488719A2 System and method for detecting partial discharge of gas-insulated switchgear |
| 06/03/1992 | EP0488083A2 Contact material for a vacuum interrupter |
| 06/02/1992 | US5119260 Method for operating a circuit-breaker |
| 06/02/1992 | US5118911 High voltage vacuum insulating container |
| 05/27/1992 | DE4037126A1 Current interrupter with arc prevention - has contacts bridged temporarily by variable resistor whose value is reduced under pressure from moving contact lever |
| 05/27/1992 | CN2105757U Vacuum circuit breaker |
| 05/27/1992 | CN1061488A Circuit break switch |
| 05/22/1992 | CA2053127A1 Electrical switch contact arrangement having quick break arcing contacts |
| 05/19/1992 | US5115389 Dc power supply circuit arrangement |
| 05/19/1992 | US5115371 Circuit breaker comprising an electronic trip device |
| 05/13/1992 | EP0485306A1 Multiphase rotating switch |
| 05/13/1992 | EP0484747A2 Rotary puffer switch |
| 05/13/1992 | CN1016656B Rotary switch with curyed surface suiding means for transferring arc-root |
| 05/12/1992 | US5113056 Stored-spring-energy actuator mechanism for a high-voltage circuit breaker |
| 05/06/1992 | EP0483840A2 High-voltage circuit breaker |
| 05/06/1992 | CN1016548B High-and medium-voltage gas circuit breakers |
| 04/30/1992 | WO1992007373A1 Isolating switch |
| 04/30/1992 | DE4033811A1 Vacuum switch with inner and outer connecting conductors - has coil built into housing and surrounded immediately by fixed contact over which current is distributed |
| 04/29/1992 | EP0483123A2 Switchgear |
| 04/29/1992 | EP0483122A2 Switchgear |
| 04/29/1992 | EP0483121A2 Switchgear |
| 04/29/1992 | EP0482555A1 SF6 circuit breaker with built-in condensor |
| 04/29/1992 | EP0482549A1 Isolator with resistance insertion |
| 04/29/1992 | EP0482547A1 Circuit breaker with arc detection |
| 04/29/1992 | CN1016477B High-tension breaker with pressurized dielectric gas arc-extinguishing |
| 04/29/1992 | CN1016476B Circuit breaker with calibration adjusting means |
| 04/28/1992 | US5109146 Switch with contacts |
| 04/28/1992 | US5109145 Vacuum interrupter contacts and process for producing the same |
| 04/28/1992 | US5107715 Circuit breaker drive mechanism |
| 04/27/1992 | CA2054130A1 Resistor insertion disconnecting switch |
| 04/23/1992 | DE4032901A1 Cast conductive copper contact piece for vacuum switch - has angled inserts with attachments shaped to ensure uniform all-round surface contact with material of casting |
| 04/22/1992 | EP0480922A1 PROCESS FOR PRODUCING A CuCr CONTACT MATERIAL FOR VACUUM SWTICHES. |
| 04/21/1992 | US5107447 Abnormality diagnosing system and method for a high voltage power apparatus |
| 04/21/1992 | US5107200 Load switch for a step transformer |
| 04/21/1992 | CA1299241C Braking resistor for a high voltage electrical network |
| 04/16/1992 | WO1992006482A1 Process for increasing the electric strength and improving the leak resistance of insulation sections and application of this process to vacuum switches |
| 04/15/1992 | CN1060366A Operating mechanism for pneumatic switch |
| 04/14/1992 | US5105058 Dielectric blast gas high voltage circuit breaker with electrical resistance conductor |
| 04/10/1992 | CA2052757A1 Manual operator for an electrical switch |
| 04/08/1992 | EP0479469A2 Support arrangement for a rotatable insulator |
| 04/08/1992 | EP0479468A2 Interrupter switch with coordination of disconnect and interrupter linkage |
| 04/07/1992 | US5103198 Instantaneous trip device of a circuit breaker |
| 04/07/1992 | US5103111 Switch configuration with integral sensing and power supply apparatus |
| 04/07/1992 | US5103069 Electrode for a vacuum breaker |
| 04/02/1992 | DE4128798A1 Vacuum switch for medium-HV network - consists of two part switching housing with metallic electrically conducting and electrically insulating material |
| 04/02/1992 | DE4030806A1 Verfahren zur erhoehung der spannungsfestigkeit und verbesserung des kriechstromverhaltens von isolationsstrecken und anwendung dieses verfahrens auf vakuumschalter A method for increasing the dielectric strength and improvement of kriechstromverhaltens of isolation stretch and application of this procedure to vacuum switch |
| 04/01/1992 | CN1059989A 开关机构 Switching mechanism |
| 04/01/1992 | CN1016124B Compression gas-blast switch |
| 04/01/1992 | CN1016123B Electrical circuit breaker with self-expansion and rotating arc |
| 04/01/1992 | CN1016122B Buffer gas circuit interrupter |
| 04/01/1992 | CN1016121B Vacuum electric-discharge device |
| 04/01/1992 | CN1016120B Interrupter operation mechanism |
| 03/25/1992 | EP0476906A2 Switch mechanism |
| 03/25/1992 | EP0475944A1 Compressed gas switch |
| 03/25/1992 | CN1059801A Gas circuit breaker |
| 03/25/1992 | CN1016023B Insulator type gas-break switch |
| 03/24/1992 | US5099385 Protected reversing contractor using a multifunctional transmission systrem for controlling acknowledgement switches |
| 03/24/1992 | US5099093 Vacuum switching chamber |
| 03/18/1992 | EP0475270A2 High-voltage circuit breaker of self-blasting type |
| 03/18/1992 | EP0475268A2 Gas circuit breaker |
| 03/18/1992 | EP0475247A1 Operating device for circuit breaker |
| 03/18/1992 | EP0474628A1 PROCESS FOR PRODUCING A CuCr CONTACT MATERIAL FOR VACUUM SWITCHES AND APPROPRIATE CONTACT MATERIAL. |
| 03/18/1992 | EP0419468B1 High-tension switchgear with metal casing and compressed gas insulation and with an insulated earthing switch |
| 03/18/1992 | EP0417218A4 A line terminal and arc stack for a circuit breaker |
| 03/17/1992 | US5096438 Electrical distribution line control sticks |
| 03/17/1992 | CA1297576C Ultrasonic transducer and current loop transmitter |
| 03/10/1992 | US5095293 Circuit breaker contact wipe indicator |
| 03/10/1992 | US5095183 Gas-blast electrical circuit breaker |
| 03/05/1992 | DE4028421A1 Pressurised gas isolated high voltage switch - has electrodes set into ring shaped segments of material with different electrical conductivities |
| 03/04/1992 | EP0473014A2 Bi-directional direct current switching apparatus having bifurcated arc runners extending into separate arc extinguishing chambers |
| 03/04/1992 | EP0473013A2 Bi-directional direct current switching apparatus having arc extinguishing chambers alternatively used according to polarity applied to said apparatus |
| 02/25/1992 | US5091616 Self-contained switch for electrical distribution circuit |
| 02/25/1992 | US5091614 Disconnecting switch |
| 02/25/1992 | US5090292 Short-circuiting switch and electromagnetic projectile launcher incorporating the switch |
| 02/19/1992 | CN1058859A High-voltage vacuum compound function switch |
| 02/18/1992 | US5089931 Safety device for electrical apparatus containing a dielectric gas, in particular circuit breakers or voltage-droppers for measurement purposes |
| 02/18/1992 | CA1296038C Vacuum switching tube |
| 02/13/1992 | DE4025553A1 Circuit breaker with self-generated quenching gas stream - has gas compression chamber with residual vol. in circuit breaker OFF state |
| 02/12/1992 | EP0470678A1 High voltage SF6 circuit breaker |
| 02/12/1992 | EP0470302A1 High voltage SF6 pressurised gas circuit breaker |
| 02/12/1992 | EP0470301A1 High voltage SF6 pressurised gas circuit breaker for 16 2/3 Hz |
| 02/12/1992 | CN1058671A Electrical circuit breaker with rotating arc and self-extinguishing expansion |
| 02/12/1992 | CN1058670A Gas blast circuit breaker |
| 02/12/1992 | CN1058669A Puffer type gas-insulated circuit breaker |
| 02/11/1992 | CA1295632C Pre-insertion inductor arrangement |
| 02/05/1992 | EP0470014A1 Electrical circuit breaker with rotating arc and self blast mechanism |
| 02/05/1992 | EP0469330A2 Gas blast circuit breaker |
| 02/05/1992 | EP0469207A2 Solid state overload relay |
| 02/05/1992 | CN1015412B Windmill shape electrode for vacuum circuit breaker |
| 01/29/1992 | EP0468294A2 Puffer type gas-insulated circuit breaker |
| 01/28/1992 | US5084600 Gas-blast load-break switch |
| 01/28/1992 | CA1295003C High or medium voltage gas blast circuit-breaker using the arc energy as the source of the cut-off energy |