CN201369531Y - Bus bar for ultra-high voltage test device - Google Patents

Abstract

The utility model discloses a bus bar for an ultra-high voltage test device. The bus bar comprises a T-shaped cylindrical casing fixedly connected through a basin-shaped insulator, and conducting bars coaxially assembly on the two axial ends and the radial ends of the casing. The bus bar adopting the T-shaped structure can meet a variety of wiring requirements and connections of an isolating switch during a test, and has the advantages of simple structure, convenient installation and low manufacturing cost.

Description

A busbar for UHV test equipment

technical field

The utility model relates to a connecting bus bar of an isolating switch, in particular to a connecting bus bar of an isolating switch used in an extra-high voltage test device.

Background technique

UHV power transmission can solve technical problems such as system stability and short-circuit current increase caused by large-capacity long-distance power transmission and the increase of power flow in the main outer ring system. The number of UHV transmission lines is small, which can effectively reduce the equivalent inductance of the system and improve system stability. Therefore, major high-voltage switchgear manufacturers are developing UHV switchgear. Japan's Toshiba Corporation designed and developed 1100kV gas-insulated metal-enclosed switchgear (GIS) and its supporting linear bus in the new Haruna substation in 1999. However, the 1100kV UHV test busbar is a test device that is matched with the UHV test equipment. According to the test requirements, it is often necessary to use more complicated wiring methods. The linear busbar developed by Toshiba Corporation of Japan can no longer meet the wiring of the UHV test device. Require.

Utility model content

The purpose of the utility model is to provide a busbar that can meet the wiring requirements of the UHV test device and the connection of the isolating switch.

The technical scheme of the utility model is: a bus bar for UHV test equipment, including a shell fixed through a pot insulator, and a conductive rod is installed in the shell through an electrical connector coaxially, and the electrical connector is provided with a There is a connecting groove for the conductive rod matching with the conductive rod, the shell is T-shaped, and the pot insulators are fixed on the two axial ends and the radial end of the T-shaped shell, respectively fixed in the center of the insulator There is an electrical connection body, wherein a main conductive rod is fixed between the insulators at both axial ends of the T-shaped casing, and a second conductive rod fixed in the radial direction with the insulator at the radial end of the casing is fixed on the main conductive rod .

The second conductive rod is electrically connected to the radial end insulator of the housing through an auxiliary electrical connector radially fixed on the main rod.

One end of the auxiliary electrical connector is fixed on the main conductive rod, and one end facing the radial end of the T-shaped housing is provided with a conductive rod connection groove that fits with the second conductive rod.

The bus bar with T-shaped structure can meet various routing requirements and connections of the disconnector in the test, and its structure is simple, easy to install, and low in manufacturing cost.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, pot insulators 3, 3' are respectively arranged at both axial ends and radial ends of the T-shaped tubular shell 1, and the shell 1 is fixedly connected with the pot insulators 3, 3' , the centers of the pot insulators 3 and 3' are respectively fixed with electrical connectors 7, and the electrical connectors 7 are respectively provided with conductive rod connecting grooves at both ends of the pot insulators 3 and 3' in the axial direction. The slot matches with the conductive rod. On the insulators 3 at both ends of the casing 1 in the axial direction, the main conductive rod 2 is fixed through the electrical connector 7, and an auxiliary electrical connector 5 is radially fixed on the main conductive rod 2. The auxiliary electrical connector 5 is also provided with a conductive The rod is connected to the groove, and is electrically connected to the insulator 3 ′ at the radial end of the casing 1 through the second conductive rod 4 installed on the auxiliary electrical connector 5 .

Claims (3)

1. A bus bar for an UHV test device, including a shell fixed by a basin-type insulator, in which a conductive rod is installed coaxially through an electrical connector, and the electrical connector is provided with a The connecting groove of the conductive rod is characterized in that the shell is T-shaped, and the pot insulators are fixed on the two axial ends and the radial ends of the T-shaped shell, and the pot insulators are respectively fixed in the center. An electrical connecting body is provided, wherein a main conductive rod is fixedly connected between the insulators located at both axial ends of the T-shaped casing, and a second conductive rod fixedly connected to the radial end insulator of the casing is radially fixed on the main conductive rod. pole. 2. The busbar for UHV test equipment according to claim 1, wherein the second conductive rod is electrically connected to the insulator at the radial end of the casing through an auxiliary electrical connector radially fixed on the main rod. 3. The busbar for UHV test equipment according to claim 2, wherein one end of the auxiliary electrical connecting body is fixed on the main conductive rod, and one end facing the radial end of the T-shaped housing is provided with a second The conductive rod fits in the matching conductive rod connecting groove.

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