| 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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| 12/04/1991 | EP0459593A1 Compartment module for a metal-enclosed, modular medium-voltage distribution system and a distribution system assembled with these compartment modules |
| 12/04/1991 | CN1015040B Arrangement for gas insulating switch |
| 12/03/1991 | US5070428 Encapsulated switching system with longitudinal coupling of bus bars, inner partitions, and coupling fields |
| 11/13/1991 | CN2088750U Double-bus stationary high voltage switch cabinet |
| 11/07/1991 | DE4014099A1 Stabilised switch panel for metal-clad medium voltage switchgear - incorporates discharge channel between rear wall and reinforced plate on which insulating bus=bar supports are mounted |
| 11/06/1991 | EP0455562A1 Internal spark detection device for an electrically shielded installation |
| 11/06/1991 | EP0454961A2 Gas insulated switchgear for use in transformer distribution station |
| 11/01/1991 | CA2018382A1 Surge protection assembly for insulating flanges |
| 10/30/1991 | CN1055840A Arrangement for gas insulating switch of network transformer substation |
| 10/23/1991 | EP0452639A2 Metal-clad, gas-insulated switch gear for a compact transformer station in the middle range |
| 10/02/1991 | CN1055066A Power apparatus and method of location of fault in power apparatus |
| 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 |
| 09/25/1991 | EP0447503A1 Encapsulated medium-voltage cubicle |
| 09/18/1991 | CN1014011B Arrangement for gas insulating switch |
| 09/11/1991 | EP0445990A2 Power apparatus and method of location of a fault in a power apparatus |
| 09/03/1991 | US5045968 Gas insulated switchgear with bus-section-unit circuit breaker and disconnect switches connected to external lead-out means connectable to other gas insulated switchgear |
| 08/27/1991 | CA2037148A1 Detection device of an internal arc in a metalclad electrical installation |
| 08/20/1991 | CA1287868C Electrical distribution apparatus having draw-out surge arrester |
| 07/31/1991 | EP0438769A1 Apparatus and method for connecting gas insulated switchgear contained in separate casings |
| 07/25/1991 | DE4001909A1 Coupling set connecting gas isolated switches in separate housing - has two=piece plug contacts phase-wise couplable to bus=bars encapsulated in bridging conduit |
| 07/24/1991 | EP0437762A1 Modular construction switchgear |
| 07/17/1991 | EP0436578A1 Container for a gas-insulated medium-tension switch. |
| 07/10/1991 | EP0436256A2 Switchgear with a gas-filled container and multi-position rotary switch |
| 06/19/1991 | EP0433184A1 Hybrid-medium high voltage circuit breaker |
| 06/19/1991 | EP0433183A1 Three-pole gasinsulated high tension circuit breaker |
| 06/18/1991 | US5025171 Method and arrangement for providing power operation of switchgear apparatus |
| 06/18/1991 | US5025118 Metal-clad, compressed gas-blast circuit-breaker with a shifting linkage |
| 06/13/1991 | DE3940500A1 Pressure-tight lockable hinged door for encased switchgear - has U=shaped locking bolt moving parallel to door leaf and extending behind rounded corner at edge |
| 06/05/1991 | EP0430446A1 Enclosures for electrical switchgear |
| 05/23/1991 | DE3938295A1 Medium-voltage switchgear with plug an timing circuits - has flexible wiring to controlling motor and trip mechanisms from output stage of printed circuit board |
| 05/22/1991 | EP0428220A1 Metal-encased modular mediumvoltage distribution system |
| 05/16/1991 | WO1991006996A1 Three-pole, metal encased, pressurised-gas-insulated high-voltage switchgear |
| 05/16/1991 | CA2072872A1 Three-pole, metal encased, pressurised-gas-insulated high-voltage switchgear |
| 05/08/1991 | DE4100586A1 Metal-encapsulated HV DC appts. - has electrode attached to isolating part coupled to leakage current detection circuit |
| 05/01/1991 | CN2076275U Open phase time integrator of voltage mutual inductor |
| 04/30/1991 | US5012051 Three-phase common container-type circuit breaker |
| 04/11/1991 | DE3933535A1 Gas-insulated metal-clad switchgear installation - has plug connection to feedthrough leading to pivot of lever which moves contact reversibly between bus-bar and earthing point |
| 04/09/1991 | US5006958 Gas insulation switchgear |
| 04/04/1991 | DE4019686A1 Erdungsschalter fuer eine druckgasisolierte, metallgekapselte hochspannungsschaltanlage Earthing switch for a compressed-gas-insulated, metal high voltage switchgear |
| 04/03/1991 | EP0419468A1 High-tension switchgear with metal casing and compressed gas insulation and with an insulated earthing switch. |
| 04/03/1991 | CN1050471A Gas insulated switchgear |
| 03/28/1991 | WO1991005356A1 Earthing switch for a metal-encapsulated high-voltage switchboard plant insulated by pressurised gas |
| 03/26/1991 | US5003427 Metal encapsulated multi-phase high voltage switching system filled with compressed gas |
| 03/19/1991 | US5001599 Gas-insulated switchgear apparatus |
| 03/13/1991 | CN1049913A Electric power installation, electric power transmission / distribution unit and trip method thereof |
| 03/07/1991 | WO1991003089A1 Encapsulated medium-voltage cubicle |
| 03/06/1991 | EP0415370A1 Power apparatus, power transmission/distribution unit, and tripping method therefor |
| 03/06/1991 | EP0414685A1 Circular waveguide connection between a transformer and metal-cased, high-voltage switchgear with compressed gas insulation. |
| 02/28/1991 | DE3927835A1 Gekapselte mittelspannungsschaltanlage Encapsulated medium-voltage switchgear |
| 02/26/1991 | US4996485 Gas insulated switch device |
| 02/13/1991 | EP0412368A1 Switchboard of breaker accomodation type |
| 01/30/1991 | CN1048927A Method and apparatus for locating abnormality in gas-insulated electric device |
| 01/24/1991 | DE4022310A1 Adjustable mounting for hermetically sealed electrical components - has separate compartment giving external access for precise orientation of internal electrical parts |
| 01/16/1991 | CN1048634A Apparatus for gas insulating switch |
| 01/10/1991 | WO1991000633A1 Device for the connection of insulating gas between cells of encapsulated electrical switchboards |
| 12/27/1990 | EP0403855A1 Insulating spacer |
| 12/26/1990 | CN1048102A Device for diagnosing electric power apparatus and method |
| 12/19/1990 | EP0402906A2 Method and apparatus for locating an abnormality in a gas-insulated electric device |
| 12/12/1990 | CN1010821B Gas insulating switch arrangement |
| 12/12/1990 | CN1010820B Double-throw disconnecting switch double bus bar high voltage switch cabinet |
| 12/06/1990 | DE3943447A1 Internal arcing protection for gas-insulated switch appts. |
| 12/05/1990 | EP0400593A1 Protection for gas insulated switchgear components against burn-out from internal arcing faults |
| 12/05/1990 | EP0400405A2 Apparatus and method for diagnosis of power appliances |
| 12/05/1990 | CN1010726B Gas insulation switch |
| 11/21/1990 | CN1010535B Arrangement of gas insulating switch |
| 11/15/1990 | WO1990013932A1 Load switching device with a three-position switch |
| 11/15/1990 | DE3915948A1 Lastschaltanlage mit einem dreistellungsschalter Load switchgear with a three-position switch |
| 11/06/1990 | US4968875 Cell for a medium or high tension metaclad station, and a station made up of such cells |
| 10/30/1990 | US4967307 Gas insulated switchgear apparatus |
| 10/24/1990 | EP0393733A1 Single- or polyphase medium-voltage switching device and distribution installation assembled therewith |
| 10/18/1990 | DE3910696A1 Method for monitoring the pressure in a pressurised gas-filled chamber and a device for carrying out the method |
| 10/10/1990 | EP0391313A2 Rotary medium high voltage multi-section switch |
| 10/09/1990 | US4961628 In a viewing window assembly |
| 10/04/1990 | DE3910697A1 Switch cabinet having compressed-gas-filled chambers |
| 10/03/1990 | CN1009888B Gas insulated switching arrangement |
| 09/25/1990 | US4958659 Pressuring and purging apparatus |
| 09/11/1990 | US4956742 Switch gear |
| 08/22/1990 | CN1044875A Bus-bars conductor supporting mechanism |
| 08/16/1990 | EP0382324A1 Metal-clad pressurized-gas power switch with an operating rod |
| 08/15/1990 | CN1044739A Arrangement for gas insulating switch |
| 07/25/1990 | CN1008961B Switching apparatus |
| 07/19/1990 | DE4000721A1 Medium voltage switch appts. - has incorporated fault protection and monitors load parameters to activate release for earthing switch |
| 07/04/1990 | EP0243813B1 Spark gap |
| 06/20/1990 | EP0373901A1 Gas insulated switch device |
| 06/19/1990 | US4935840 Compressed gas-insulated bus connection between a metal-enclosed, compressed gas-insulated high voltage switching installation and a transformer |
| 06/13/1990 | EP0372261A1 Longitudinal coupling for bus bars |
| 06/12/1990 | US4933802 Gas insulated switchgear system having single phase reserve bus |
| 06/06/1990 | CN1042809A Electric apparatus |
| 06/06/1990 | CN1042798A Three-phase common container breaker |
| 05/31/1990 | DE3840240A1 Pressure-relief means on buildings, in particular electric switching units |
| 05/30/1990 | CN1042625A Arrangement for gas insulating switch |
| 05/23/1990 | EP0369280A1 Three-phase common container-type circuit breaker |
| 05/16/1990 | EP0367975A1 Prefabricated housing structure for substations |
| 05/02/1990 | EP0365802A2 Observation device for gas-tight and pressure-proof closed spaces |
| 04/25/1990 | CN1007769B Metalclad substation subdivided into tight compartments |
| 04/05/1990 | WO1990003678A1 Container for a gas-insulated medium-tension switch |
| 03/08/1990 | DE3827102A1 Casing-current reduction |
| 03/01/1990 | DE3828015A1 Method for monitoring the insulating gas of pressurised-gas-insulated switchgears and control device for implementing this method |
| 02/22/1990 | WO1990001787A1 High-tension switchgear with metal casing and compressed gas insulation and with an insulated earthing switch |