| Patents for H02B 7 - Enclosed substations, e.g. compact substations (1,694) |
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| 09/21/1994 | EP0616406A1 Compound type electric power receiving and transforming installation |
| 09/14/1994 | EP0487556B1 Arrangement of a valve stack for high voltage direct current in a valve hall |
| 09/14/1994 | EP0435970B1 Improved gas-insulated electric switchboard |
| 08/02/1994 | US5334927 Multiphase switching system and generator arrangement having such a switching system |
| 08/02/1994 | US5333750 Durable lightweight meter box |
| 06/23/1994 | DE4341511A1 Container arrangement e.g. for high voltage equipment |
| 05/31/1994 | US5315794 Enclosure for telecommunications equipment |
| 05/25/1994 | EP0598130A1 Distribution apparatus |
| 04/20/1994 | EP0592757A1 (Compact) Switching Station for Electrical Switchgear |
| 01/25/1994 | US5281382 Method of making molds |
| 01/18/1994 | US5280408 Power receiving and transforming apparatus |
| 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 |
| 10/27/1993 | CN2144881Y Double unit movable substation |
| 10/07/1993 | DE4310290A1 Transportable room cell for voltage transformer station |
| 10/07/1993 | DE4213146A1 Ventilator door - has overlapping Z-shaped blades within frame so that air exits in zigzag path between them |
| 10/06/1993 | EP0563659A1 Blast protected prefabricated building module made of reinforced concrete specially reinforced concrete transformer building modules |
| 10/06/1993 | EP0563436A1 Transportable box and its erection method |
| 09/28/1993 | US5249114 Arrangement of a valve stack for high voltage direct current in a valve hall |
| 09/16/1993 | DE4307478A1 Switching cubicle access door with door frame - has extruded aluminium box frame with concealed hinge inside and protruding arm attached to rear of door |
| 06/22/1993 | US5221505 Method for molding a wall structure |
| 06/15/1993 | US5220484 Underground transformer cabin consisting of two units, one inside the other |
| 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 |
| 03/04/1993 | WO1993004515A1 Distribution apparatus |
| 12/29/1992 | US5175667 Gas insulated substations |
| 11/19/1992 | EP0513828A2 Transformer apparatus |
| 10/06/1992 | CA2052133A1 Universal enclosure with electrical panel |
| 09/30/1992 | CN1064973A Customer's power receiving and transforming system |
| 08/19/1992 | EP0499592A1 Underground transformer cabin consisting of two units, one inside the other |
| 08/13/1992 | CA2061103A1 Underground transformer cabin consisting of two units, one inside the other |
| 08/04/1992 | US5136463 Universal enclosure with electrical panel |
| 06/04/1992 | DE4139177A1 HV substation with air insulation - uses adjacent cells each with self-supporting transportable chassis |
| 06/03/1992 | EP0487556A1 Arrangement of a valve stack for high voltage direct current in a valve hall. |
| 03/24/1992 | US5099389 Gas-insulated electric switchboard |
| 01/22/1992 | CN1058119A Compound switch arrangement |
| 10/29/1991 | US5062022 Pad-mounted switchgear with combination live front and dead front terminations and two observation windows permitting visual inspection of the switch assembly |
| 08/27/1991 | CA2029854A1 Padmount switchgear with combination live and dead front terminations |
| 03/07/1991 | WO1991003087A1 Arrangement of a valve stack for high voltage direct current in a valve hall |
| 12/13/1990 | WO1990015465A1 Improved gas-insulated electric switchboard |
| 12/13/1990 | CA2030563A1 Gas-insulated electric switchboard |
| 06/13/1990 | EP0372220A1 Transportable transformer station for overhead power transformers |
| 06/06/1990 | CN1042809A Electric apparatus |
| 05/31/1990 | DE3840239A1 Encapsulated substation |
| 05/16/1990 | EP0367975A1 Prefabricated housing structure for substations |
| 02/14/1990 | CN2052969U 组合插座 Combination socket |
| 01/31/1990 | CN2052160U Integrated substation |
| 11/29/1989 | EP0343356A1 Transformer station or the like with ventilation openings for an air current |
| 11/28/1989 | US4883918 Transformer mounting pad having a cable opening lined with a safety barrier |
| 10/24/1989 | US4876629 Underground control housing |
| 10/05/1989 | DE3809543A1 Compact station for electrical switching installations |
| 09/13/1989 | CN2044385U High voltage vacuum anti-explosion power distribution device |
| 09/12/1989 | US4866569 Gas-insulated switchgear apparatus |
| 05/02/1989 | US4827379 Electrical facility |
| 04/11/1989 | US4821143 Switchgear enclosure with improved supporting frame and improved access door |
| 10/12/1988 | EP0286517A1 Ventilation of a transformer substation |
| 07/06/1988 | CN87103345A Electric apparatus |
| 06/22/1988 | EP0271830A2 Electrical facility |
| 06/01/1988 | CN87213847U Singly controlled handrail type hand-push switch |
| 06/01/1988 | CN87207791U 10 kv self-protected self-compensating combined single-phase transformer |
| 01/20/1988 | EP0253317A2 Gas-insulated switchgear apparatus |
| 01/06/1988 | CN87206773U Automatic switching over device for single-phase and three-phase operation of distribution transformer |
| 11/24/1987 | US4709120 Underground utility equipment vault |
| 09/23/1987 | CN86208939U Direction-changing high-voltage switch cabinet |
| 06/16/1987 | CA1223057A1 Vault mount for electrical apparatus |
| 04/09/1987 | DE3535938A1 Electrical high-voltage switching installation |
| 04/08/1987 | CN86106589A Electric high-voltage switching system |
| 02/11/1987 | CN86100047A Multi-function overload switch for 3-phase power supply |
| 01/21/1987 | CN86201993U Transformer system |
| 10/08/1986 | EP0196624A2 Small station |
| 09/02/1986 | US4609126 Venting cap for apparatus housing |
| 08/20/1986 | CN85205796U Power distribution unit with transfer switch for two power supplies |
| 11/12/1985 | CA1196715A1 High voltage interior station |
| 09/17/1985 | US4541209 Vault mount for electrical apparatus |
| 03/06/1985 | EP0133737A2 Vault mount for electrical apparatus |
| 02/19/1985 | US4500935 Package substation in tank with separate chambers |
| 03/16/1983 | EP0074086A2 Package substation |
| 12/01/1981 | CA1113596A1 Base for mounting electrical equipment |
| 07/14/1981 | CA1105101A1 Compressed-gas-insulated high-voltage switch installation |
| 05/12/1981 | US4267399 Transformer pad with cable protective sleeve |
| 12/23/1980 | CA1092231A1 Electrical switchboard apparatus with integral traveling lifting mechanism |
| 02/05/1980 | US4187437 Switching apparatus for medium-voltage cable networks |
| 07/03/1979 | CA1057842A1 Transformer unit |
| 03/27/1979 | US4145857 Base for mounting electrical equipment |
| 01/09/1979 | US4134148 Electrical control and service unit |
| 11/21/1978 | US4126232 Electrical switchboard apparatus with integral traveling lifting mechanism |
| 08/30/1977 | US4045634 Gas insulated switch-gear apparatus |
| 06/14/1977 | US4029380 Grounded surface distribution apparatus |
| 05/17/1977 | US4023755 Transformer mounting pad |
| 01/25/1977 | US4005253 Grade-level enclosure for electrical apparatus |
| 06/08/1976 | US3962660 Pallet pad for transformers and transformer affixed thereon |
| 04/06/1976 | US3949343 Grounded surface distribution apparatus |
| 03/30/1976 | US3947650 Gas-insulated switch for an underground power distrubution system |