| Patents for H01H 33 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means (18,584) |
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| 12/31/1993 | CA2099183A1 Self-extinguishing expansion switch or circuit breaker |
| 12/29/1993 | EP0576047A2 High voltage switchgear |
| 12/29/1993 | CN1023358C Shunt reactor switch producing low voltage surge |
| 12/28/1993 | US5274205 Gas blast circuit breaker |
| 12/28/1993 | CA1325655C Recloser plenum puffer interrupter |
| 12/22/1993 | EP0574903A1 UHV breaker provided with resistances |
| 12/21/1993 | CA1325452C Vacuum switch arrangement |
| 12/15/1993 | EP0574058A2 Relay |
| 12/15/1993 | CN2149681Y High-tension Vacuum switch |
| 12/14/1993 | US5269055 Method of assembling a circuit-breaker pole |
| 12/14/1993 | CA1325234C Circuit breaker |
| 12/14/1993 | CA1325233C Low-voltage limiting circuit breaker with leaktight extinguishing chamber |
| 12/12/1993 | CA2098145A1 Relay |
| 12/08/1993 | EP0572654A1 Compact circuit breaker |
| 12/07/1993 | CA2017127C High current rating medium voltage circuit-breaker |
| 12/01/1993 | EP0572346A2 High-voltage circuit breaker |
| 12/01/1993 | EP0572155A1 Bistable magnetic actuator |
| 12/01/1993 | CN1022960C Contact material for vacuum interrupter |
| 12/01/1993 | CN1022959C Line circuit breaker with changeable risistor auxiliary break |
| 11/30/1993 | US5267117 Electrical phase and amplitude fault detection and response system |
| 11/30/1993 | US5266758 Automtically protected against surges, metal cladding |
| 11/25/1993 | DE4217232A1 Electrical high-voltage power switch - has compression system for quenching gas with cylinder floors made of material with good electrical conductivity |
| 11/24/1993 | EP0570688A2 Switch gear |
| 11/24/1993 | CN1022877C Puffer-type gas circuit breaker |
| 11/23/1993 | US5264671 Varistor inserter device for a high-voltage circuit-breaker |
| 11/18/1993 | EP0570266A1 Whip contact for high voltage disconnecting switch |
| 11/18/1993 | EP0570265A1 Earthing switch with perpendicular contact opening |
| 11/18/1993 | EP0570020A2 Switch for electrical distribution |
| 11/16/1993 | US5262605 Surge-limiting circuit breaker |
| 11/16/1993 | CA2085848A1 High current electrical switch contacts |
| 11/16/1993 | CA2014512C Medium voltage gas blast circuit breaker |
| 11/11/1993 | WO1993022786A1 Automatic miniature circuit breaker with z-axis assemblable current response mechanism |
| 11/10/1993 | CN1078333A Apparatus for touching of conductor |
| 11/10/1993 | CN1022715C Medium tension circuit breaker |
| 11/09/1993 | US5259108 Method of assembling rotary puffer switch |
| 11/03/1993 | EP0568166A2 Vacuum switch tube |
| 11/02/1993 | US5258590 Medium- or high-tension circuit breaker having abutting arcing contacts |
| 11/02/1993 | US5258589 High- and medium-voltage circuit breaker with lower operating energy |
| 11/02/1993 | US5258588 Puffer type switch high current electrical switch contact assembly |
| 10/27/1993 | CN1022594C Surge-limiting circuit breaker |
| 10/19/1993 | US5254817 Vacuum switch tube |
| 10/19/1993 | US5254816 Having zinc, nickel and titanium oxides as components |
| 10/19/1993 | US5254185 Preheating substrate, applying powder additive; wetting |
| 10/14/1993 | WO1993020574A1 High-voltage power switch |
| 10/14/1993 | WO1993020572A1 Gas-insulated switching unit with a multi-pole vacuum switch and a multipole load-break switch |
| 10/14/1993 | WO1993020571A1 Vacuum switch with a current-loop assembly |
| 10/14/1993 | WO1993020570A1 Multi-pole vacuum switch with an insulation assembly surrounding each switching tube |
| 10/14/1993 | DE4310619A1 Detecting reduction in degree of vacuum of vacuum switching valve - determining discharge current caused by bulge, e.g. in protective shield, whilst holding shield at same potential as electrodes |
| 10/14/1993 | CA2133327A1 High-voltage power switch |
| 10/13/1993 | EP0565356A1 Bus bar connector |
| 10/13/1993 | EP0564487A1 Compressed gas switch |
| 10/13/1993 | EP0516640B1 Quick-action circuit breaker |
| 10/13/1993 | CN1077312A Structure of pneumatic system of breaker |
| 10/12/1993 | US5252780 High voltage |
| 10/07/1993 | DE4211159A1 Elektrischer Hochspannungs-Leistungsschalter Electrical high-voltage circuit breaker |
| 10/07/1993 | DE4211158A1 Hochspannungs-Leistungsschalter High-voltage circuit breaker |
| 10/07/1993 | DE4211155A1 Gasisolierte Schaltanlage mit einem mehrpoligen Vakuumschalter und einem mehrpoligen Lasttrennschalter Gas-insulated switchgear with a multi-pole vacuum switch and a multi-pole switch disconnectors |
| 10/07/1993 | DE4210545A1 Breaker switch for metal-encapsulated HV switch appts. - has pair of cooperating movable and stationary contact pieces within switch encapsulation, each having pre-ignition contact pin |
| 10/06/1993 | EP0564173A1 Lockable remote rotary handle operator for circuit breakers |
| 10/06/1993 | EP0564058A1 Electrical high voltage circuit breaker |
| 10/06/1993 | EP0564057A1 Gas-insulated switch gear apparatus with a vacuum interrupter |
| 10/06/1993 | EP0563904A1 Vacuum circuit breaker |
| 10/06/1993 | EP0563830A1 Vacuum tube for low and middle tension switch, particularly for vacuum contactor |
| 10/05/1993 | US5250918 Automatic miniature circuit breaker with Z-axis assemblage current response mechanism |
| 10/05/1993 | CA2001986C High-voltage breaker with pressurized dielectric gas |
| 10/01/1993 | WO1993020573A1 High-tension circuit-breaker |
| 10/01/1993 | CA2092860A1 Locking remote rotary handle operator for circuit breakers |
| 09/30/1993 | DE4217697A1 HV power switch with hollow cylindrical shield - connected releasably to contact piece carrier by resilient strip of metal in juxtaposed inner and outer grooves |
| 09/30/1993 | DE4210716A1 Mehrpoliger Vakuumschalter mit einer jede Vakuumröhre umgebenden Isolieranordnung Multi-pole vacuum switch with each vacuum tube surrounding insulation assembly |
| 09/30/1993 | DE4210714A1 Vakuumschalter mit einer Stromschleifenanordnung Vacuum switch with a current loop arrangement |
| 09/29/1993 | EP0245513B1 Vacuum interrupter |
| 09/29/1993 | CN1022271C Rotating arc electrical switch |
| 09/29/1993 | CN1022270C Medium tension circuit breaking having high nominal current |
| 09/28/1993 | US5248862 Gas-blast circuit breaker |
| 09/16/1993 | DE4207983A1 Multiphase h.v. network reactor on=off switch - has series-connected varistors connected across series-connected switch-chambers between reactor and network. |
| 09/15/1993 | EP0560665A1 Inertia contact |
| 09/15/1993 | EP0560588A2 Power circuit breaker and power resistor |
| 09/14/1993 | US5245145 For a circuit interrupter |
| 09/14/1993 | CA2088833A1 Reactor switch |
| 09/08/1993 | EP0559552A1 Load break switch for high nominal intensity and its use in a cell and in a medium voltage installation |
| 09/07/1993 | US5243160 Operating mechanism for an inert gas filled circuit breaker |
| 09/07/1993 | US5243159 Section or disconnect switch with an interrupter switch operated by the upward movement of the disconnect switch blade |
| 09/07/1993 | US5241745 Process for producing a CUCB contact material for vacuum contactors |
| 09/01/1993 | EP0557795A1 Method for loading a spring energy accumulator drive for a high or medium voltage circuit breaker and circuit breaker for carrying out the method |
| 09/01/1993 | EP0557620A1 Magnetic blow-out circuit breaker with booster loop/arc runner |
| 09/01/1993 | CN1022001C Enclosed load-break switch unit |
| 08/31/1993 | US5241294 Varistor and resistor device for the interrupting chamber of circuit breaker |
| 08/31/1993 | US5241290 Compact circuit breaker |
| 08/26/1993 | DE4304863A1 Commutating constant voltage circuit breaker - blocks flow of commutator current from commutator circuit to load in unloaded open operating condition |
| 08/26/1993 | DE4205206A1 Vacuum switch contact system with coaxial contacts - inhibits movement of contacts so they only close at null current point and when contact coating is solid |
| 08/26/1993 | DE4205139A1 Controlling pneumatic or hydraulic fluid driven power switches - recharging fluid reservoir after switching off to allow further switch on and a further switch off |
| 08/25/1993 | EP0556616A1 Commutating type DC circuit breaker arrangement |
| 08/25/1993 | EP0556478A1 Disconnecting switch for a metal-sheathed gas-insulated high-tension installation |
| 08/24/1993 | US5239150 Medium voltage circuit breaker with operating mechanism providing reduced operating energy |
| 08/24/1993 | US5239149 Vacuum electrical switch |
| 08/19/1993 | DE4204559A1 Limitation of switching voltage on connecting inductive load e.g. compensation reactor coil in AC loop - connecting voltage limiter during high voltage periods and disconnecting during stationary operation of load |
| 08/17/1993 | US5237137 Isolating switch for metal-clad, compressed-gas insulated high-voltage switchgear |
| 08/12/1993 | DE4203757A1 Testing vacuum of enclosed switchgear - measuring emission current or detecting x=ray radiation before and after capacitive arc discharge |
| 08/11/1993 | EP0554686A1 Gas blast switch |
| 08/11/1993 | EP0435865B1 Load-break switch containing a vacuum switch tube and process for operating saidload said load-break switch |