65results about "Gas-insulated enclosed substations" patented technology

A GIS (Gas Insulated Switchgear) includes a main bus compartment including a main bus-bar unit, a transfer bus compartment including a transfer bus-bar unit, a sealed circuit breaker compartment including a circuit breaker unit and a load side compartment including a current transforming unit and a transfer bus conductor electrically coupling the transfer bus-bar unit and the current transformer unit. The circuit breaker unit is contained in the sealed circuit breaker compartment being separately independent from other compartments. The transfer bus conductor passes from the transfer bus-bar unit through the load side compartment to the current transformer unit without passing through the circuit breaker compartment. The sealed circuit breaker compartment and the load side compartment do not share insulating gas.

The present disclosure relates to a gas insulated switchgear (GIS), and more particularly, a structure of a bus in a GIS. A structure of a three-phase integrated bus in a GIS according to one exemplary embodiment, in a bus of a gas insulated switchgear comprising an enclosure (10), three phase conductors (30, 40, 50) inserted in the enclosure, and spacers coupled to both sides of the enclosure to fix the three phase conductors, is characterized in that the three phase conductors are arranged in a shape of inverted triangle, wherein a conductor (30) located at a lower side, of the three phase conductors, is formed in a shape of straight pipe, and has a branch bus (35) upwardly extending from its middle portion, and wherein each of two conductors (40, 50) located at an upper end of the inverted triangle, of the three phase conductors, has both side portions formed in a shape of straight pipe and a middle portion (42, 52) outwardly curved.

A submersible power distribution system is provided. The system includes at least one receptacle configured to be exposed to an underwater environment and a plurality of power conversion modules positioned within the at least one receptacle. Each of the plurality of power conversion modules includes a first enclosure configured to be exposed to the underwater environment, the first enclosure defining a first interior cavity configured to have a first pressure. Power conversion modules also include at least one second enclosure positioned within the first interior cavity. The at least one second enclosure defines a second interior cavity configured to have a second pressure that is lower than the first pressure. The at least one second enclosure is configured to restrict exposure of non-pressure-tolerant power electronics in the second interior cavity to the first pressure.

The invention discloses an environment-friendly pre-installed box type substation. The box type substation comprises a high-voltage chamber, a transformer chamber, and a low-voltage chamber, wherein the high-voltage chamber is divided into a ventilating and radiating cabin and an electric cabin; a sulfur hexafluoride switchgear is arranged in the electric cabin; the ventilating and radiating cabin is provided with an internal air flow channel, an external air flow channel and a ventilating and purifying mechanism; the ventilating and purifying mechanism comprises a sealed shell; the inner cavity of the sealed shell is divided into an air purifying part and an air extracting part; the air purifying part communicates with the air extracting part; the air purifying part communicates with the external air flow channel; the air extracting part communicates with the internal air flow channel; a movable door is arranged in the internal air flow channel; and an active carbon filter is arranged between the air purifying part and the air extracting part. According to the environment-friendly pre-installed box type substation, the solid granular impurities in the external atmosphere can be filtered in the radiating process; and the harmful gas in the interior of the pre-installed box type substation can be purified and discharged to the air in the ventilating process as well.

The present invention relates to medium- or high-voltage equipment having low environmental impact, including a leaktight enclosure in which there are located electrical components covered with a solid dielectric layer of varying thickness and a gaseous medium for providing electrical insulation and / or for extinguishing electric arcs that are likely to occur in said enclosure, and that comprises heptafluoroisobutyronitrile in a mixture with a dilution gas.

In an electrical distribution cabinet a mechanism providing quick, reliable, passive arc blast control has a flue chamber surrounding the likely arc site such as an electrical connection point. The flue chamber provides a flue channel which lengthens the arc and attenuates the current and temperature until the arc is extinguished. Preferably, the flue chamber and channel are formed of opposable open-faced polyhedral structures, one fitting inside the other. The mechanism is particularly suited for draw-out circuit breaker connections in a switch gear cabinet.

The present disclosure relates to a gas insulated switchgear (GIS), and more particularly, a structure of a bus in a GIS. A structure of a three-phase integrated bus in a GIS, in a bus of a gas insulated switchgear comprising an enclosure, three phase conductors inserted in the enclosure, and spacers coupled to both sides of the enclosure to fix the three phase conductors, is characterized in that the three phase conductors are arranged in a shape of inverted triangle, wherein a conductor located at a lower side, of the three phase conductors, is formed in a shape of straight pipe, and has a branch bus upwardly extending from its middle portion, and wherein each of two conductors located at an upper end of the inverted triangle, of the three phase conductors, has both side portions formed in a shape of straight pipe and a middle portion outwardly curved.