| Patents for H02B 13 - Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle (6,055) |
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| 12/14/1994 | CN1027024C Gas insulating electric apparatus |
| 12/13/1994 | US5373415 Gas filled power switching apparatus having a vertical type circuit breaker |
| 12/07/1994 | EP0627800A1 Metal-clad gas-insulated switch installation with a cable termination |
| 12/01/1994 | DE4318367A1 Metal-encapsulated high-voltage switching installation |
| 11/22/1994 | US5367432 Instrument current transformer for power cables |
| 11/17/1994 | EP0624924A2 Conductive connector for switchgear |
| 11/17/1994 | DE4316239A1 Method for arc identification |
| 11/17/1994 | DE4315730A1 Connecting device for switching installations or the like, in particular in the medium-voltage range |
| 11/10/1994 | WO1994025973A1 Integrated electrical system |
| 11/09/1994 | EP0623981A1 Gas-insulated high voltage switch installation |
| 11/03/1994 | DE4314823A1 Gas-insulated, high-voltage (high-tension) switching installation having a current transformer |
| 11/02/1994 | CN1026439C System and method for inspection of trouble of power arrangement |
| 11/02/1994 | CN1026438C System and method for inspection of un-normal situation of high voltage power apparatus |
| 10/27/1994 | WO1994024746A1 Driving device for a disconnecting and earthing switch in a switchgear panel |
| 10/27/1994 | WO1994024745A1 Metal-enclosed medium voltage switchgear panel with switching compartment, bus bar compartment and cable connecting compartment |
| 10/27/1994 | WO1994024741A1 Metal-enclosed switchgear panel with door lock responding to locking requirements |
| 10/27/1994 | CA2161010A1 Driving device for a disconnecting and earthing switch in a switchgear panel |
| 10/27/1994 | CA2160924A1 Metal-enclosed medium-voltage switch gear panel with switching compartment, bus bar compartment, and cable connecting compartment |
| 10/27/1994 | CA2160923A1 A metal-encapsulated switch bay with a door lock that takes locking status into account |
| 10/20/1994 | DE4312924A1 Switch panel having a power area and a low-voltage area |
| 10/20/1994 | DE4312621A1 Electrical switching installation |
| 10/20/1994 | DE4312620A1 Electrical switch panel |
| 10/20/1994 | DE4312619A1 Switch panel |
| 10/20/1994 | DE4312617A1 Electrical switch panel, especially for medium-voltage installations |
| 10/20/1994 | DE4312261A1 Busbar coupling |
| 10/20/1994 | DE4312024A1 Device for operating a switch which is arranged in a switch cell of particularly pressure-resistant design |
| 10/19/1994 | EP0620626A1 Switching cell device, especially for medium voltage einstallations |
| 09/29/1994 | DE4409190A1 Low-voltage distribution pillar |
| 09/22/1994 | DE4308476A1 Switch panel |
| 09/13/1994 | US5347096 Electrical circuit breaker with two vacuum cartridges in series |
| 08/10/1994 | CN1025644C High-voltage circuit breaker with gas insulation and pneumatic operating mechanism |
| 08/04/1994 | DE4302076A1 Insulating gas-filled HV electrical switchgear installations monitoring system |
| 08/03/1994 | EP0608852A1 Method and apparatus for monitoring of gas-insulated switchgear and installations |
| 08/02/1994 | US5334927 Multiphase switching system and generator arrangement having such a switching system |
| 07/20/1994 | EP0494151B1 Earthing switch for a metal-encapsulated high-voltage switchboard plant insulated by pressurised gas |
| 07/13/1994 | CN1089402A Insulation switching apparatus with envelope filled with electrically insulating gases |
| 06/30/1994 | DE4243046A1 Gas-insulated electric lead system and lead entry for switchgear casing |
| 06/22/1994 | EP0471678B1 Load switching device with a three-position switch |
| 05/11/1994 | DE4322944A1 Current transformer for HV gas-insulated switching installation - has inbuilt HF capacitor providing shunt path for travelling waves due to switching transients for instrument protection and accuracy |
| 05/05/1994 | DE4236623A1 Emergency operation of electrical switchgear by gas generator - bursting cover between source of gas and cylinder contg. piston which drives plunger into earthing contact |
| 05/04/1994 | EP0594976A2 Medium voltage switchgear |
| 05/03/1994 | CA1329234C Metal-enclosed, pressurized gas-insulated high-voltage switching installation with insulated grounding switch |
| 04/27/1994 | EP0593902A1 Medium-voltage switchgear |
| 04/21/1994 | DE4235329A1 Short-circuiting device for extinguishing arcing in LV distribution switchgear - is triggered to urge bridging conductor against electrodes by electrodynamic forces of co-directional short-circuit currents |
| 04/20/1994 | EP0593344A1 Connecting system for the housings of two devices of which at least one is under pressure |
| 04/20/1994 | EP0592909A1 Connection box for shielded cable, specifically for information transfer |
| 04/20/1994 | EP0592757A1 (Compact) Switching Station for Electrical Switchgear |
| 04/19/1994 | US5305235 Monitoring diagnosis device for electrical appliance |
| 04/14/1994 | DE4233986A1 Circuit breaker with voltage transformer - has bushing with voltage transformer which can be connected by switch to earth or to high voltage conductor |
| 04/06/1994 | EP0590198A1 Method and apparatus for monitoring gases in high voltage, metal-clad equipment |
| 03/24/1994 | DE4331716A1 Arcing detector for LV switch appts. |
| 03/23/1994 | EP0588359A2 Gas-insulated apparatus |
| 03/17/1994 | DE4230287A1 Insulation vessel, e.g. for HV generator in X=ray appts. - has holding rail for cover fixing screws between wall and edge lip of vessel |
| 03/02/1994 | CN1083273A Gas insulated switchgear device |
| 03/01/1994 | US5291369 Three-pole, metal-encased, pressurized-gas-insulated, high-voltage switchgear |
| 02/24/1994 | DE4227686A1 Measuring gas density in gas insulated systems - involves using special heating wire or functional wire to measure heat transport as measure for gas density |
| 02/23/1994 | CN2157609Y Improved metal enclosed switchgear |
| 02/16/1994 | EP0582828A1 Switchgear |
| 02/15/1994 | CA2002829C Three-phase common container-type circuit breaker |
| 02/10/1994 | DE4226234A1 Detection of partial discharges in enclosed HV switchgear - requires vibration sensor with signal frequency analysed and inspected for discharge patterns when voltage is above threshold |
| 02/03/1994 | WO1994002979A1 Circuit breaker enclosure |
| 02/03/1994 | DE4224744A1 Interferometer for detecting electric field generated vibration of metallic particles in gas insulated HV switchgear - feeds laser beam into sensing and reference optical fibre branches of Mach=Zehnder interferometer, has two photodetectors at output of combiner-divider and control loop for zeroing difference between detector voltages |
| 01/19/1994 | CN1081029A Insulating component and a gas-insulated high voltage apparatus having such an insulating component |
| 01/18/1994 | US5280408 Power receiving and transforming apparatus |
| 01/11/1994 | US5278723 Power board |
| 01/05/1994 | EP0577346A2 Gas-insulated high voltage apparatus having an insulating component |
| 01/05/1994 | DE4221865A1 Partial-discharge pulse-sensor for HV appts. - has different attenuation-frequency response according to whether one of two output connections is open- or short-circuited |
| 01/05/1994 | DE4220790A1 Electric-arc proof switch cubicle for switchgear and bus=bars - has pressure-relief system formed by duct arranged at rear side and extending over height of switch cubicle having only one outflow opening at cubicle top |
| 12/29/1993 | EP0575932A1 Detecting device for fault arcs, in particular for their detection on bus bar arrangements in low-voltage switch gears |
| 12/09/1993 | WO1993024942A1 Electrical high-voltage switchgear with at least one sensor |
| 12/01/1993 | EP0436578B1 Container for a gas-insulated medium-tension switch |
| 11/24/1993 | EP0570688A2 Switch gear |
| 11/23/1993 | US5264660 High-voltage system |
| 11/03/1993 | EP0567773A2 Multiphase switching system and generator system with the same |
| 11/03/1993 | CN1078072A Multiphase switching system and generator arrangement having such a switching system |
| 10/29/1993 | CA2093184A1 Multiphase switching system and gnerator arrangement having such a switching system |
| 10/26/1993 | US5257161 Coupling system for electric switchgear modules in transformation centers and the like |
| 10/26/1993 | US5256976 Power apparatus and method of location of a fault in a power apparatus on the basis of attenuation coefficients of electromagnetic coefficients of fault generated electromagnetic waves |
| 10/20/1993 | CN1077567A Instrument current transformer for power cables |
| 10/14/1993 | WO1993020606A1 Earthing switch for metal-clad high-voltage switchgear insulated with compressed gas |
| 10/14/1993 | WO1993020572A1 Gas-insulated switching unit with a multi-pole vacuum switch and a multipole load-break switch |
| 10/14/1993 | CA2133213A1 Earthing switch for metal-clad high-voltage switchgear insulated with compressed gas |
| 10/13/1993 | EP0564899A2 High voltage switchboard |
| 10/12/1993 | US5253180 Apparatus and method for diagnosis of power appliances |
| 10/07/1993 | DE4211157A1 Erdungsschalter für eine druckgasisolierte, metallgekapselte Hochspannungsschaltanlage Earthing switch for a compressed-gas-insulated, metal high-voltage switchgear |
| 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 |
| 10/06/1993 | EP0564057A1 Gas-insulated switch gear apparatus with a vacuum interrupter |
| 10/06/1993 | EP0563803A1 High voltage switchboard |
| 10/06/1993 | EP0563535A1 Metall-clad SF6-gas-insulated switchgear having an array of distributing bus-bars |
| 10/06/1993 | CN1077063A Gas isolated sf6 switch with bus unit and metal shell sealing |
| 09/23/1993 | DE4209202A1 High DC voltage industrial generator - has all components under high DC potential surrounded by conductive zones of reduced potential |
| 08/19/1993 | DE4302424A1 Gas insulated switching breaker device - has common bus=bars for several aligned units, each with breakers and isolators mounted between two crossbars |
| 08/05/1993 | DE4302416A1 Automatic earthing device e.g. for metal-encapsulated gas-insulated load isolating switch - increases pressure rapidly after sparking to activate device by pressure activated trigger mechanism |
| 07/27/1993 | US5231247 Compartment module and distribution system assembled therewith |
| 07/21/1993 | EP0551337A1 Monitoring gas insulated substations |
| 06/24/1993 | DE4142518A1 Switching plant for medium or high voltage - has auxiliary electrode for arc extinction supported on insulator and adjacent to right-angled earthed counter electrode |
| 06/24/1993 | DE4141685A1 Switchgear for medium or high voltage - has opening in wall or earthed housing covered with layers of expanded metal mesh held in frame |
| 06/09/1993 | EP0545508A1 Metal-enclosed, gas insulated switch installation with a cable terminal box |
| 06/09/1993 | CN1021178C Arrangement for gas insulating switch of network transformer substation |
| 06/09/1993 | CN1021136C Method and apparatus for locating abnormality in gas-insulated electric device |