TH3720A - Gas-insulated metal-enclosed high-voltage electrical equipment with insulating sleeve - Google Patents

Abstract

Gas-insulated metal-enclosed electrical power equipment There is a cylindrical insulating sleeve to support the conductors, the sheath is filled with an insulated gas inside. And fixed without aeration to the earthed wall parts In such a way that the outer area of the conductor is facing Directly to the inner circumferential surface of the through hole There is a distance g between there when the length l of the cylindrical gap. The inside of the casing is defined as the value (formula), and besides, the difference in diameter between the through-hole wall (formula) and the cylindrical gap. The inside (formula) of the casing is defined as a value (formula), it is effective to prevent non-conductive breakdowns throughout the casing area. By placing the tools mentioned above It is possible to significantly reduce the size, space, weight, cost etc. of the casing when compared to conventional equipment arrangements.

Claims (8)

1. Gas-insulated metal-clad power equipment consists of - a channel with electrical power equipment. And added with gas insulated - An earthed metal wall arrangement, consisting of a sheet metal section, formed by a through hole with the area of the conductive edge. - A cylindrical insulator sleeve has a cylindrical gap inside. Extending onto the axis of its middle point And has a horizontal wall filling the inner cylindrical gap The insulating sleeve has an open edge, which is airtight installed on the surface. The metal wall placement plate surrounding the through hole is so that the cylindrical gap is connected to the inside of the said chamber and is filled with gas insulators. The cylindrical gap is co-axed with through holes. And have a larger diameter (formula) than the diameter (formula) of the through hole. - Conductive rods have a surface around a circle that conducts electricity. And through the middle area through a hole through Cylindrical gap And the transverse wall And was braced without aeration by the side wall Said electric conductive rod It is possible to connect the internal electrical equipment in the compartment to the power equipment outside of the said room and - within the circumferential surface of the conductive rod. Face directly with the edge surface of the through hole And is separated by a distance g and - where within the length along the axis l of the cylindrical gap is equal or longer than 1/4 of the distance. 2. Gas-insulated metal-clad electrical equipment as described in Clause 1, in which the metal plate portion of the grounded metal wall arrangement is fixed to place. 3. Gas-insulated metal-clad power equipment as described in Clause 1, where the aforementioned metal-earthed wall arrangement consists of a tiered, retractable, metal-crimped sheath cover. Movable Which supports the said insulator sheath without aeration And movable, and within it the said casings With fixed ends attached to that And movable ends The immobilized end is electrically and mechanically attached to the sheet metal portion of the metal wall arrangement. Grounded 4. Gas-insulated metal-clad electrical power equipment described in Clause 1, where the axial length l of the inner cylindrical gap roughly. Is equal to the diameter (formula) of the through hole 5. Gas-insulated metal-enclosed electrical power equipment As mentioned in claim 1, where the diameter of the inner cylindrical gap is 4 mm higher or greater than the diameter (formula) of the through hole. 6. Gas-insulated metal-clad electric power equipment according to Clause 2, which the said conductive rod It consists of a fixed lead piece that is fixed inside. And movable lead parts Which is inside Can be connected together conductive Or able to be released from each other at the disengaged parts placed between them Inside the inner cylindrical gap And at which the distance of the protrusion B of the immobilized piece is attached to the inside Into the inner cylindrical cavity Is equal to or greater than 1 of the distance g 7. Gas-insulated metal-clad electrical power equipment as described in Clause No. 3, in which the conductive rods, consisting of immobilized parts, are fixed inside And the movable lead piece inside Can be connected together conductive Or able to be released from each other as part of the release Which is placed in between Is outside the inner cylindrical gap Movable parts Which is inside Part of the movable part that is inside And an outside mobile operator The movable conductors that are within It was initially disengaged from the lead piece attached to the inside. Together with the outer movable conductor inside the enclosed gas insulation Under no power transmission condition Then the outer movable conductor was disengaged from the enclosed air-conditioned electrical equipment under no-electric state. 8. Gas-insulated metal-clad power equipment described in Clause 6, where the aforementioned conductive rod, consisting of fixed parts, is fixed in place. Which is inside And moving parts Which is inside Can be connected together conductive And able to be released from each other as part of the release Which is placed in between Located inside the inner cylindrical gap Movable parts Which is inside Movable conductor section Which is inside Was removed from lead parts Which is attached to the inside In conjunction with the outer movable conductor part within the enclosed insulating gas Under no power transmission condition And personally can carry the body The exterior was therefore removed from the surrounding airborne electric power device. Which is under no power transmission condition