Transition structure for GIS extension project splicing

Abstract

The utility model belongs to the technical field of combined electrical equipment, and particularly relates to a transition structure for GIS extension project splicing. The transition structure comprises a front GIS insulator and is characterized in that the front GIS insulator is connected with a transition straight cylinder, the transition straight cylinder is connected with the left side of an expansion joint, the right side of the expansion joint is connected with the left side of a four-way shell, the right side of the four-way shell is connected with a new GIS insulator, and three conductors are led out of the new GIS insulator and connected with the new GIS insulator. The conductors are respectively connected with the electric connector, the electric connector is connected with the conducting rod, and the conducting rod is inserted into the plum blossom contact seat to be connected with the interior of the front GIS insulator. The beneficial effects of the utility model are that the housing and the conductor designed by the utility model can be used for rapid and reliable connection of GISs of different manufacturers without changing early-stage equipment.

Description

Technical Field

[0001] This utility model belongs to the field of combined electrical equipment technology, and specifically relates to a transition structure for the continuation of GIS expansion projects. Background Technology

[0002] As power grid companies continue to deepen their centralized large-scale bidding and procurement efforts, the winning bidders for equipment in power transmission and transformation expansion projects may differ from the previous equipment suppliers, especially for combined electrical appliances with non-standard interface sizes. Therefore, the issue of equipment interoperability between GIS systems from different manufacturers has become an important topic. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a transition structure for the continuation of GIS expansion projects.

[0004] This utility model is achieved through the following technical solution:

[0005] A transition structure for the continuation of GIS expansion projects includes a front GIS insulator, characterized in that: the front GIS insulator is connected to a transition straight cylinder, the transition straight cylinder is connected to the left side of an expansion joint, the right side of the expansion joint is connected to the left side of a four-way housing, the right side of the four-way housing is connected to a new GIS insulator, three conductors are led out from the new GIS insulator, the conductors are respectively connected to an electrical connector, the electrical connector is connected to a conductive rod, and the conductive rod is inserted into a perforated contact seat and connected to the interior of the front GIS insulator.

[0006] The beneficial effects of this utility model are: without requiring any modifications to the existing equipment, the housing and conductor designed in this application enable quick and reliable connection of GIS from different manufacturers. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings.

[0008] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] In the diagram, 1 is the front GIS insulator, 2 is the transition straight cylinder, 3 is the expansion joint, 4 is the four-way housing, 5 is the new GIS insulator, 6 is the conductor, 7 is the electrical connector, 8 is the conductive rod, and 9 is the plum blossom contact seat. Detailed Implementation

[0010] The attached figure shows a specific embodiment of this utility model. This embodiment includes a front GIS insulator 1, which is connected to a transition cylinder 2. The transition cylinder 2 is connected to the left side of an expansion joint 3. The right side of the expansion joint 3 is connected to the left side of a four-way housing 4. The right side of the four-way housing 4 is connected to a new GIS insulator 5. Three conductors 6 are led out from inside the new GIS insulator 5. The conductors 6 are respectively connected to electrical connectors 7. The electrical connectors 7 are connected to conductive rods 8. The conductive rods 8 are inserted into a perforated contact seat 9 and connected to the interior of the front GIS insulator 1.

[0011] The transition structure of this utility model for the continuation of GIS expansion projects adopts the standard dimensions of the new GIS insulator 5, the left and right flange dimensions of the four-way housing 4, the left and right flange dimensions of the expansion joint 3, and the right flange dimension of the transition cylinder 2. The left flange dimension of the transition cylinder 2 adopts the dimensions of the previous GIS insulator 1 and is connected to it, thus realizing the connection between the housing (insulator) of the new GIS and the previous GIS. The height difference between the new and previous GIS is bridged by the misalignment of the openings on the left and right sides of the four-way housing 4, and the installation error between the two devices is offset by the axial and radial compensation of the expansion joint 3.

[0012] Conductor 6 is the lead conductor of the new GIS insulator 5. Its three-phase spacing matches the insert of the new GIS insulator 5. Its left side connects to the electrical connector 7. The three phases of conductor 6 have different lengths, providing space for the electrical connector 7 to rotate. The three-phase spacing of the conductive rod 8 matches the insert of the previous GIS insulator 1. The electrical connector 7 connects conductor 6 and conductive rod 8, which have different spacings, and can perform phase sequence conversion, thus realizing the conductor docking between the new manufacturer's GIS and the previous manufacturer's GIS. The allowance of the conductive rod 8 when inserted into the plum blossom contact seat 9 offsets the axial installation error of the equipment, and the variation of the plum blossom contact pieces inside the plum blossom contact seat 9 offsets the radial installation error of the equipment.

[0013] The expansion and connection work of GIS needs to be completed within a short power outage time. The outer flanges (or insulators) of equipment from different manufacturers are connected through a four-way housing 4, an expansion joint 3, and a transition straight cylinder 2. The conductors of equipment from different manufacturers are connected through the conversion of the internal electrical connection of the four-way housing 4.

Claims

1. A transition structure for the continuation of a GIS expansion project, comprising a front GIS insulator (1), characterized in that: The front GIS insulator (1) is connected to the transition straight cylinder (2), the transition straight cylinder (2) is connected to the left side of the expansion joint (3), the right side of the expansion joint (3) is connected to the left side of the four-way housing (4), the right side of the four-way housing (4) is connected to the new GIS insulator (5), three conductors (6) are led out from the new GIS insulator (5), the conductors (6) are connected to the electrical connector (7) respectively, the electrical connector (7) is connected to the conductive rod (8), and the conductive rod (8) is inserted into the plum blossom contact seat (9) and connected to the inside of the front GIS insulator (1).

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