Patents
Patents for H02B 13 - Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle (6,055)
06/1993
06/08/1993US5218212 Device for optically detecting a chemical change in fluid
06/08/1993CA1318947C Compressed gas-insulated bus connection between a metal-enclosed, compressed gas-insulated high voltage switching installation and a transformer
06/03/1993DE4239826A1 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
06/01/1993US5216575 Power board
06/01/1993US5216574 Component for a metal-clad station for section switching and grounding
05/1993
05/27/1993DE4138579A1 Measuring appts. insensitive to excessive voltage - contg. inner conductor, first sensor for measuring electric field, and second sensor for measuring magnetic field
05/26/1993EP0543352A1 Switchboard
05/26/1993EP0543334A2 Gas insulated switchgear
05/26/1993CN1072536A Gas insulated switchgear
05/26/1993CN1072535A Switchboard
05/25/1993US5214595 Abnormality diagnosing system and method for a high voltage power apparatus
05/19/1993EP0542637A1 Electrical circuit breaker with two vacuum switch tubes in series
05/11/1993US5210679 Customer's power receiving and transforming system
05/06/1993DE4135850A1 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
04/1993
04/21/1993EP0537868A1 Compensation joint
04/18/1993CA2080517A1 Electrical circuit breaker with two vacuum cartridges in series
04/15/1993DE4133947A1 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.
04/07/1993EP0535766A1 Metal clad, high-voltage installation
04/06/1993US5200737 System and method for detecting partial discharge of gas-insulated switchgear
03/1993
03/31/1993EP0534415A1 Explosion-proof porcelain housings for gas-filled insulating apparatuses
03/25/1993DE4131779A1 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
03/24/1993EP0414685B1 Circular waveguide connection between a transformer and metal-cased, high-voltage switchgear with compressed gas insulation
03/24/1993CN1020173C Arrangement for gas insulating switch
03/17/1993EP0286689B1 Gas insulating switch
03/17/1993CN1070065A Receiving and transforming apparatus
03/09/1993US5193049 Enclosures for electrical switchgear
03/04/1993DE4129103A1 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
03/03/1993CN1020020C Three-phase common container breaker
02/1993
02/23/1993US5188538 Electrical connection, in particular for a modular, medium-tension electricity substation
02/18/1993DE4126786A1 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
02/16/1993US5187339 Gas insulated high-voltage circuit breaker with pneumatic operating mechanism
02/10/1993CN1068913A Component for metal-clad station for section switching and grounding
02/04/1993DE4125591A1 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
02/03/1993EP0526308A1 Metal clad switchgear component for disconnecting and grounding
01/1993
01/19/1993US5181164 Compartment barrier for padmounted switchgear
01/19/1993US5181158 Phase barrier for padmounted switchgear
01/14/1993DE4121764A1 Cable connector for coupling to HV measurement and test appts. - has externally accessible connector for each phase and earthing arrangement effective during insertion
01/05/1993US5177664 Gas insulated switchgear
12/1992
12/30/1992EP0520933A1 Coupling system for electric switchgear modules in transformation centres and the like
12/29/1992US5175667 Gas insulated substations
12/23/1992EP0519228A1 High-voltage inset with at least two layers
12/08/1992US5170050 Detection device of an internal arc in a metalclad electrical installation including a light-gathering rod
11/1992
11/25/1992EP0515009A1 Multi-position rotary switch with extinguishing gas
11/24/1992US5166860 Metal-encased modular medium-voltage distribution system
11/19/1992EP0513828A2 Transformer apparatus
11/11/1992CN1019067B Bus-bars conductor supporting mechanism
10/1992
10/29/1992DE4113794A1 Gas pressure power switch with Lorentz force compensator - incorporates current path with two vertical sections for partial compensation of magnetic field in arc region
10/15/1992DE4111586A1 Electric load switch appts. with arc limitation - uses mechanically coupled short-circuit closures each with double function
10/14/1992CN1065356A Electrical connection, in particular for modular, medium-tension electri city substation
10/13/1992US5155315 Hybrid medium voltage circuit breaker
10/06/1992US5153398 Metal-clad, compressed-gas insulated, high-voltage switching station with an insulated grounding switch
09/1992
09/30/1992CN1064973A Customer's power receiving and transforming system
09/30/1992CN1018485B Electric power installation, electric power transmission/distribution unit and trip method thereof
09/15/1992US5147981 Low voltage electrical switchgear cabinet
09/10/1992DE4107725C1 Encapsulated three=phase medium voltage switchgear - is filled with insulating gas with diverters mounted in series and transformers in outlet chamber
09/10/1992DE4107673A1 Encapsulated multiphase switchgear filled with insulating gas - has earthed isolating walls between conductors and operating gear of individual phases for subdivision into separate chambers
09/08/1992US5146170 Method and apparatus for locating an abnormality in a gas-insulated electric device
09/02/1992CN1018106B Gas-breaker made in shape of earth-tank
08/1992
08/26/1992EP0499606A1 Three-pole, metal encased, pressurised-gas-insulated high-voltage switchgear.
08/20/1992DE4104921A1 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
08/18/1992US5140499 Gas-insulated switching device
08/05/1992EP0497248A1 Electrical connection especially for medium voltage modules of electrical cabinet
07/1992
07/28/1992US5134542 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
07/01/1992EP0492753A1 Device for pressure relief in a metalencapsulated pressurised gas-insulated switchgear
07/01/1992CN1062434A Surge suppression in electric apparatus
06/1992
06/30/1992US5126917 Gas insulated switchgear
06/25/1992DE4041790A1 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
06/24/1992EP0491314A1 Bottom arrangement for encapsulation of high voltage equipment in gas insulated, metallic enclosures, especially for cable connections
06/23/1992US5124881 Enclosed switchgear
06/23/1992US5124687 Power apparatus, power transmission/distribution unit, and tripping method therefor
06/03/1992EP0488719A2 System and method for detecting partial discharge of gas-insulated switchgear
06/03/1992EP0488695A2 Surge suppression in electric apparatus
05/1992
05/27/1992CN1016819B Device for diagnosing electric power apparatus and method
05/14/1992DE4035472A1 Switching unit for integrator in non=access enclosed metal encapsulated housing - provided for gas filled switchgear which consists of three switch poles
05/06/1992CN1060929A Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor
04/1992
04/21/1992US5107447 Abnormality diagnosing system and method for a high voltage power apparatus
04/21/1992US5107081 Operating mechanism for gas filled switchgear
04/16/1992WO1992006385A1 Monitoring gas insulated substations
04/14/1992CA1298869C Arrestor pressure relief valve with current carrying preweakened beam spring
04/08/1992EP0479467A1 Sealing arrangement with overpressure relief
04/07/1992US5101710 Control apparatus or system for purged and pressurized enclosures for electrical equipment
04/01/1992EP0478098A2 Gas insulated medium voltage switchgear with feed-troughs for realising an external earthing connection
04/01/1992CN1059994A Gas insulated electric apparatus
03/1992
03/31/1992US5100157 Sealing arrangement with overpressure relief
03/25/1992EP0476502A2 Gas insulated electric apparatus
03/18/1992EP0419468B1 High-tension switchgear with metal casing and compressed gas insulation and with an insulated earthing switch
03/05/1992DE4027112A1 Cable connections for gas-insulated switch appts. - has three connections for each switch cell arranged along diagonal at cell base
02/1992
02/25/1992CA1296382C Metal-encapsulated gas-insulated high-voltage installation with an overvoltage arrester
02/06/1992DE4108588A1 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
01/1992
01/29/1992EP0468300A1 Device for testing insulation performance of metal-encapsulated, gas-filled switching systems
01/22/1992CN1058119A Compound switch arrangement
01/21/1992US5083233 Surge protection assembly for insulating flanges
01/14/1992US5080775 Gas detector
01/08/1992EP0465378A1 Low voltage electrical apparatus housing
01/08/1992EP0465377A1 High-voltage circuit-breaker with insulating gas and pneumatic control mechanism
01/08/1992CN1057737A Gas insulated switching device
01/08/1992CN1057733A High-voltage circuit breaker with gas insulation and pneumatic operating mechanism
01/02/1992EP0463490A1 Gas insulated switching device
01/01/1992CN1057550A Background of disclosure
12/1991
12/12/1991DE4116281A1 Fault arc warning device - has light pick=up module in conductor wall, with memory and alarm indicator
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