| 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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| 06/08/1993 | US5218212 Device for optically detecting a chemical change in fluid |
| 06/08/1993 | CA1318947C Compressed gas-insulated bus connection between a metal-enclosed, compressed gas-insulated high voltage switching installation and a transformer |
| 06/03/1993 | DE4239826A1 Electrical switchgear enclosure with separate airtight compartments - has vertical vacuum switch and isolator alignment with gas filled bus=bar chamber and dual operating mechanism for switch and isolator |
| 06/01/1993 | US5216575 Power board |
| 06/01/1993 | US5216574 Component for a metal-clad station for section switching and grounding |
| 05/27/1993 | DE4138579A1 Measuring appts. insensitive to excessive voltage - contg. inner conductor, first sensor for measuring electric field, and second sensor for measuring magnetic field |
| 05/26/1993 | EP0543352A1 Switchboard |
| 05/26/1993 | EP0543334A2 Gas insulated switchgear |
| 05/26/1993 | CN1072536A Gas insulated switchgear |
| 05/26/1993 | CN1072535A Switchboard |
| 05/25/1993 | US5214595 Abnormality diagnosing system and method for a high voltage power apparatus |
| 05/19/1993 | EP0542637A1 Electrical circuit breaker with two vacuum switch tubes in series |
| 05/11/1993 | US5210679 Customer's power receiving and transforming system |
| 05/06/1993 | DE4135850A1 Electrical sub-station with pressure release mechanism - uses outwards displacement of roof or one side of sub-station housing for controlled release of pressure wave due to explosion |
| 04/21/1993 | EP0537868A1 Compensation joint |
| 04/18/1993 | CA2080517A1 Electrical circuit breaker with two vacuum cartridges in series |
| 04/15/1993 | DE4133947A1 Sensor for decomposition prod. of insulating gas pref. sulphur hexa:fluoride - comprises indicator composed of composite material including a filler in matrix which is chemically inert and permeable to prods. |
| 04/07/1993 | EP0535766A1 Metal clad, high-voltage installation |
| 04/06/1993 | US5200737 System and method for detecting partial discharge of gas-insulated switchgear |
| 03/31/1993 | EP0534415A1 Explosion-proof porcelain housings for gas-filled insulating apparatuses |
| 03/25/1993 | DE4131779A1 Screw fixing to cover equipment housing, e.g. electrical appts. or antennae - has screws passing through bush insert with large clearance hole, and captive washer for head of screw location |
| 03/24/1993 | EP0414685B1 Circular waveguide connection between a transformer and metal-cased, high-voltage switchgear with compressed gas insulation |
| 03/24/1993 | CN1020173C Arrangement for gas insulating switch |
| 03/17/1993 | EP0286689B1 Gas insulating switch |
| 03/17/1993 | CN1070065A Receiving and transforming apparatus |
| 03/09/1993 | US5193049 Enclosures for electrical switchgear |
| 03/04/1993 | DE4129103A1 Medium voltage switchgear cubicles in explosion-relieving framework - has three cubicles within a common frame, rear panels attached with some fixed and some breakable bolts |
| 03/03/1993 | CN1020020C Three-phase common container breaker |
| 02/23/1993 | US5188538 Electrical connection, in particular for a modular, medium-tension electricity substation |
| 02/18/1993 | DE4126786A1 Modular electric switchgear with selective earthing switch units - enables three bus-bars to be operated with safety in absence of preassembled module contg. similar switch |
| 02/16/1993 | US5187339 Gas insulated high-voltage circuit breaker with pneumatic operating mechanism |
| 02/10/1993 | CN1068913A Component for metal-clad station for section switching and grounding |
| 02/04/1993 | DE4125591A1 Overpressure protector for insulating gas filled chamber of electrical equipment - has release burst disc consisting of thin metal foil preventing leakage loss and layer of brittle material e.g. graphite |
| 02/03/1993 | EP0526308A1 Metal clad switchgear component for disconnecting and grounding |
| 01/19/1993 | US5181164 Compartment barrier for padmounted switchgear |
| 01/19/1993 | US5181158 Phase barrier for padmounted switchgear |
| 01/14/1993 | DE4121764A1 Cable connector for coupling to HV measurement and test appts. - has externally accessible connector for each phase and earthing arrangement effective during insertion |
| 01/05/1993 | US5177664 Gas insulated switchgear |
| 12/30/1992 | EP0520933A1 Coupling system for electric switchgear modules in transformation centres and the like |
| 12/29/1992 | US5175667 Gas insulated substations |
| 12/23/1992 | EP0519228A1 High-voltage inset with at least two layers |
| 12/08/1992 | US5170050 Detection device of an internal arc in a metalclad electrical installation including a light-gathering rod |
| 11/25/1992 | EP0515009A1 Multi-position rotary switch with extinguishing gas |
| 11/24/1992 | US5166860 Metal-encased modular medium-voltage distribution system |
| 11/19/1992 | EP0513828A2 Transformer apparatus |
| 11/11/1992 | CN1019067B Bus-bars conductor supporting mechanism |
| 10/29/1992 | DE4113794A1 Gas pressure power switch with Lorentz force compensator - incorporates current path with two vertical sections for partial compensation of magnetic field in arc region |
| 10/15/1992 | DE4111586A1 Electric load switch appts. with arc limitation - uses mechanically coupled short-circuit closures each with double function |
| 10/14/1992 | CN1065356A Electrical connection, in particular for modular, medium-tension electri city substation |
| 10/13/1992 | US5155315 Hybrid medium voltage circuit breaker |
| 10/06/1992 | US5153398 Metal-clad, compressed-gas insulated, high-voltage switching station with an insulated grounding switch |
| 09/30/1992 | CN1064973A Customer's power receiving and transforming system |
| 09/30/1992 | CN1018485B Electric power installation, electric power transmission/distribution unit and trip method thereof |
| 09/15/1992 | US5147981 Low voltage electrical switchgear cabinet |
| 09/10/1992 | DE4107725C1 Encapsulated three=phase medium voltage switchgear - is filled with insulating gas with diverters mounted in series and transformers in outlet chamber |
| 09/10/1992 | DE4107673A1 Encapsulated multiphase switchgear filled with insulating gas - has earthed isolating walls between conductors and operating gear of individual phases for subdivision into separate chambers |
| 09/08/1992 | US5146170 Method and apparatus for locating an abnormality in a gas-insulated electric device |
| 09/02/1992 | CN1018106B Gas-breaker made in shape of earth-tank |
| 08/26/1992 | EP0499606A1 Three-pole, metal encased, pressurised-gas-insulated high-voltage switchgear. |
| 08/20/1992 | DE4104921A1 Metal-clad gas-insulated HV switchgear - has reference electrode set into opening of cladding for capacitive measurement of partial discharges at points along rod insulator |
| 08/18/1992 | US5140499 Gas-insulated switching device |
| 08/05/1992 | EP0497248A1 Electrical connection especially for medium voltage modules of electrical cabinet |
| 07/28/1992 | US5134542 Three-phase package-type gas-insulated switch gear having isolators being aligned in a first plane and earthing switches disposed laterally side by side on a second plane |
| 07/01/1992 | EP0492753A1 Device for pressure relief in a metalencapsulated pressurised gas-insulated switchgear |
| 07/01/1992 | CN1062434A Surge suppression in electric apparatus |
| 06/30/1992 | US5126917 Gas insulated switchgear |
| 06/25/1992 | DE4041790A1 Metallic encapsulated switchgear filled with insulating gas - with bus=bar for each phase and entry for connection to mains also equipped with circuit breaker with quenching chambers filled with quenching gas and sealed |
| 06/24/1992 | EP0491314A1 Bottom arrangement for encapsulation of high voltage equipment in gas insulated, metallic enclosures, especially for cable connections |
| 06/23/1992 | US5124881 Enclosed switchgear |
| 06/23/1992 | US5124687 Power apparatus, power transmission/distribution unit, and tripping method therefor |
| 06/03/1992 | EP0488719A2 System and method for detecting partial discharge of gas-insulated switchgear |
| 06/03/1992 | EP0488695A2 Surge suppression in electric apparatus |
| 05/27/1992 | CN1016819B Device for diagnosing electric power apparatus and method |
| 05/14/1992 | DE4035472A1 Switching unit for integrator in non=access enclosed metal encapsulated housing - provided for gas filled switchgear which consists of three switch poles |
| 05/06/1992 | CN1060929A Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor |
| 04/21/1992 | US5107447 Abnormality diagnosing system and method for a high voltage power apparatus |
| 04/21/1992 | US5107081 Operating mechanism for gas filled switchgear |
| 04/16/1992 | WO1992006385A1 Monitoring gas insulated substations |
| 04/14/1992 | CA1298869C Arrestor pressure relief valve with current carrying preweakened beam spring |
| 04/08/1992 | EP0479467A1 Sealing arrangement with overpressure relief |
| 04/07/1992 | US5101710 Control apparatus or system for purged and pressurized enclosures for electrical equipment |
| 04/01/1992 | EP0478098A2 Gas insulated medium voltage switchgear with feed-troughs for realising an external earthing connection |
| 04/01/1992 | CN1059994A Gas insulated electric apparatus |
| 03/31/1992 | US5100157 Sealing arrangement with overpressure relief |
| 03/25/1992 | EP0476502A2 Gas insulated electric apparatus |
| 03/18/1992 | EP0419468B1 High-tension switchgear with metal casing and compressed gas insulation and with an insulated earthing switch |
| 03/05/1992 | DE4027112A1 Cable connections for gas-insulated switch appts. - has three connections for each switch cell arranged along diagonal at cell base |
| 02/25/1992 | CA1296382C Metal-encapsulated gas-insulated high-voltage installation with an overvoltage arrester |
| 02/06/1992 | DE4108588A1 Temp. measurer e.g. for encapsulated high voltage switch - has optical cable between object and infrared temp. measurement device from which it is not directly visible |
| 01/29/1992 | EP0468300A1 Device for testing insulation performance of metal-encapsulated, gas-filled switching systems |
| 01/22/1992 | CN1058119A Compound switch arrangement |
| 01/21/1992 | US5083233 Surge protection assembly for insulating flanges |
| 01/14/1992 | US5080775 Gas detector |
| 01/08/1992 | EP0465378A1 Low voltage electrical apparatus housing |
| 01/08/1992 | EP0465377A1 High-voltage circuit-breaker with insulating gas and pneumatic control mechanism |
| 01/08/1992 | CN1057737A Gas insulated switching device |
| 01/08/1992 | CN1057733A High-voltage circuit breaker with gas insulation and pneumatic operating mechanism |
| 01/02/1992 | EP0463490A1 Gas insulated switching device |
| 01/01/1992 | CN1057550A Background of disclosure |
| 12/12/1991 | DE4116281A1 Fault arc warning device - has light pick=up module in conductor wall, with memory and alarm indicator |