CN219085111U

CN219085111U - SF6 insulation armoured intelligent cable accessory special test equipment

Info

Publication number: CN219085111U
Application number: CN202222596756.XU
Authority: CN
Inventors: 张炳生; 郭长春; 汤春喜
Original assignee: YANGZHOU XINYUAN ELECTRIC CO Ltd
Current assignee: YANGZHOU XINYUAN ELECTRIC CO Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-05-26
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to special test equipment for SF6 insulation armoured intelligent cable accessories. The special test equipment comprises high-voltage test equipment and automatic assembly equipment for a cable accessory delivery test, which are connected; the gas transformer is fixedly arranged on the power supply base, the damping device is connected to the upper part of the gas transformer, the first plug-in GIS terminal is connected to the lower part of the damping device, and the isolating switch is arranged on the damping device; XLPE cable one end and plug-in GIS terminal one fixed connection, the other end and cable rubber joint fixed connection, cable rubber joint other end and plug-in GIS terminal two fixed connection, cable rubber joint and plug-in GIS terminal two fixed setting respectively on test equipment base, test equipment base pass through support and power base fixed connection. The utility model has the characteristics of small occupied space, light overall weight, low test cost and the like, a shielding test hall is not required to be built, the utilization rate of a production field is improved, the test stability and reliability are improved, and the test efficiency of products is greatly improved.

Description

SF6 insulation armoured intelligent cable accessory special test equipment

Technical Field

The utility model relates to the technical field of high-voltage electric test of power cables, in particular to special test equipment for SF6 insulation armoured intelligent cable accessories.

Background

With the continuous increase of urban construction scale in China, urban electricity consumption is rapidly increased, and the voltage of urban power transmission grids is developed from 10kV and 35kV to 110kV, 220kV and 500kV, so that the urban power transmission grids need a power transmission technology which is safer and more stable, environment-friendly, efficient and energy-saving. The power cable is widely popularized and applied gradually due to the advantages of high power supply reliability, high safety, no occupied space, convenient operation and maintenance and the like, and becomes the main force of the urban power transmission network. Cable accessories (including intermediate connectors and termination heads) are important components of power cabling. The cable accessory has a complex internal structure, is the weakest link of power cable insulation, is the most typical part of operation faults, and has good and bad electrical properties of insulating parts, thus being the basic guarantee for determining the safe operation of a cable line.

Cable accessories are a collective term for cable terminations and splices, which are an integral part of the cabling. The cable accessory is a relatively special high-voltage electrical appliance product, and must be assembled with the cable on site to become an integral product. The cable terminal is arranged at the tail end of the cable circuit and is used for connecting the cable with other electrical equipment; the cable joint is arranged between the cables, so that two or more cables are communicated to realize electric energy transmission. The cable accessory factory is used for manufacturing components (such as stress cones, joint insulating main bodies and the like) except the cable accessory, along with the application of the prefabrication forming technology to the manufacturing of the cable accessory components, the factory prefabrication forming degree of the cable accessory components is higher and higher, the factory prefabrication forming of the key insulating parts is realized at present, the electric insulation test for simulating the actual operation condition of the factory prefabrication insulating parts of the cable accessory can discover the insulation defect in the factory prefabrication process in advance, the problematic components are prevented from being applied to a power grid, and the operation faults of a cable line can be effectively reduced.

In the factory electrical test of the cable accessory insulating part, a cable accessory factory purchases high-voltage equipment of a test equipment factory at present, and an assembly tool of the cable accessory insulating part is manufactured for testing. Because the test equipment is open and exposed to the atmosphere at high pressure, a special shielding laboratory is required to be built, and the occupied space is large; in the process of the factory test of the cable accessory, the stability of the test process, the accuracy and the authenticity of the result are interfered under the influence of environmental factors, and the test is prevented from being carried out smoothly when serious; and the requirements on the safety management of the test area and the level of test personnel are high. How to eliminate the influence of various external adverse factors on the test, reduce the requirements and the safety risks of test personnel, improve the test detection reliability and the test detection efficiency, and is a key problem to be solved at present.

Disclosure of Invention

The utility model aims to provide SF6 insulation armoured intelligent cable accessory special test equipment so as to solve the problems in the prior art.

The technical scheme of the utility model is as follows: the SF6 insulation armoured intelligent cable accessory special test equipment comprises high-voltage test equipment and cable accessory factory test automatic assembly equipment which are connected;

the high-voltage test equipment comprises a power supply base, a gas transformer, damping equipment, a middle connecting bus, an isolating switch, a plug-in GIS terminal I and a capacitive voltage divider, wherein the gas transformer is fixedly arranged on the power supply base, the damping equipment is connected to the upper part of the gas transformer, the plug-in GIS terminal I is connected to the lower part of the damping equipment, and the isolating switch is arranged on the damping equipment;

the automatic assembly equipment for the factory test of the cable accessory comprises an XLPE cable, a cable rubber connector, a plug-in GIS terminal II and a test equipment base, wherein one end of the XLPE cable is fixedly connected with the plug-in GIS terminal I, the other end of the XLPE cable is fixedly connected with the cable rubber connector, the other end of the cable rubber connector is fixedly connected with the plug-in GIS terminal II, the cable rubber connector and the plug-in GIS terminal II are respectively and fixedly arranged on the test equipment base, and the test equipment base is fixedly connected with the power supply base through a bracket.

Preferably, the capacitive voltage divider is arranged on one side of the damping device in parallel, and the capacitive voltage divider is connected with the damping device through an intermediate connecting bus.

Preferably, the gas transformer, the damping device, the intermediate connecting bus, the isolating switch and the capacitive voltage divider are respectively arranged in the inflatable metal shielding tank bodies, and the inflatable metal shielding tank bodies are connected through inflatable metal shielding pipelines.

Preferably, the gas transformer, the damping device, the intermediate connecting bus, the isolating switch and the capacitive voltage divider are assembled and connected through a basin-type insulator.

The beneficial effects of the utility model are as follows:

(1) The high-voltage test equipment adopts an inflatable fully-closed structure, and is connected with the automatic assembly equipment for the factory test of the cable accessory through an inflatable lead pipeline and a cable GIS terminal, so that the full insulation and full shielding of high-voltage components in the test process are realized;

(2) Each part of the high-voltage test equipment is respectively arranged in different metal tank bodies and is connected through an inflatable bus;

(3) The high-voltage test equipment adopts a vertical assembly structure, so that the space is effectively utilized, and the occupied area is reduced.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic top view of fig. 1.

In the figure, 1 is a power base, 2 is a gas transformer, 3 is damping equipment, 4 is an intermediate connection bus, 5 is an isolating switch, 6 is a plug-in GIS terminal I, 7 is an XLPE cable, 8 is a cable rubber connector, 9 is a plug-in GIS terminal II, 10 is a test equipment base, and 11 is a capacitive voltage divider.

Detailed Description

The SF6 insulation armoured intelligent cable accessory special test equipment comprises high-voltage test equipment and cable accessory factory test automatic assembly equipment which are connected;

the high-voltage test equipment comprises a power base 1, a gas transformer 2, damping equipment 3, a middle connecting bus 4, an isolating switch 5, a first plug-in GIS terminal 6 and a capacitive voltage divider 11, wherein the gas transformer 2 is fixedly arranged on the power base 1, the damping equipment 3 is connected to the upper part of the gas transformer 2, the first plug-in GIS terminal 6 is connected to the lower part of the damping equipment 3, and the isolating switch 5 is arranged on the damping equipment 3;

the automatic assembly equipment for the factory test of the cable accessory comprises an XLPE cable 7, a cable rubber connector 8, a plug-in GIS terminal II 9 and a test equipment base 10, wherein one end of the XLPE cable 7 is fixedly connected with the plug-in GIS terminal I6, the other end of the XLPE cable is fixedly connected with the cable rubber connector 8, the other end of the cable rubber connector 8 is fixedly connected with the plug-in GIS terminal II 9, the cable rubber connector 8 and the plug-in GIS terminal II 9 are respectively fixedly arranged on the test equipment base 10, and the test equipment base 10 is fixedly connected with the power supply base 1 through a bracket.

The capacitive voltage divider 11 is arranged on one side of the damping device 3 in parallel, and the capacitive voltage divider 11 is connected with the damping device 3 through the intermediate connection bus 4.

The gas transformer 2, the damping device 3, the intermediate connection bus 4, the isolating switch 5 and the capacitive voltage divider 11 are respectively arranged in the inflatable metal shielding tank bodies, and the inflatable metal shielding tank bodies are connected through inflatable metal shielding pipelines.

The gas transformer 2, the damping device 3, the intermediate connection bus 4, the isolating switch 5 and the capacitive voltage divider 11 are assembled and connected through basin-type insulators.

The utility model designs a gas transformer 2, a damping device 3, a capacitive voltage divider 11 and the like of original high-voltage test equipment in an inflated metal tank body to be connected and assembled into a closed system, the high-voltage extraction also adopts an inflated metal shielding pipeline and is provided with a disconnecting switch 5 and other parts, and the high-voltage test equipment and a cable accessory factory test automation assembly device are connected by a plug-in GIS terminal I6 to form a fully-closed and fully-insulated intelligent test system, and all high-voltage parts are insulated and shielded in a grounded metal shell during high-voltage test.

The equipment has the characteristics of small occupied space, light overall weight, low test cost and the like. The equipment can simultaneously meet the requirement of simultaneous testing of two or more products, a shielding test hall is not required to be built, the utilization rate of a production field is improved, the test stability and reliability are improved, and the test efficiency of the products is greatly improved.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Standard parts used by the utility model can be purchased from the market, and special-shaped parts can be customized according to the description of the specification and the drawings.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

Special test equipment for SF6 insulating armoured intelligent cable accessories, which is characterized in that: the special test equipment comprises high-voltage test equipment and automatic assembly equipment for a cable accessory delivery test, which are connected;

the high-voltage test equipment comprises a power base (1), a gas transformer (2), damping equipment (3), a middle connecting bus (4), a disconnecting switch (5), a first plug-in GIS terminal (6) and a capacitive voltage divider (11), wherein the gas transformer (2) is fixedly arranged on the power base (1), the damping equipment (3) is connected to the upper part of the gas transformer (2), the first plug-in GIS terminal (6) is connected to the lower part of the damping equipment (3), and the disconnecting switch (5) is arranged on the damping equipment (3);

the automatic assembly equipment for the factory test of the cable accessory comprises an XLPE cable (7), a cable rubber connector (8), a plug-in type GIS terminal II (9) and a test equipment base (10), wherein one end of the XLPE cable (7) is fixedly connected with the plug-in type GIS terminal I (6), the other end of the XLPE cable is fixedly connected with the cable rubber connector (8), the other end of the cable rubber connector (8) is fixedly connected with the plug-in type GIS terminal II (9), the cable rubber connector (8) and the plug-in type GIS terminal II (9) are respectively fixedly arranged on the test equipment base (10), and the test equipment base (10) is fixedly connected with the power supply base (1) through a bracket.
2. The SF6 insulating armor type intelligent cable accessory special test equipment of claim 1, wherein: the capacitive voltage divider (11) is arranged on one side of the damping device (3) in parallel, and the capacitive voltage divider (11) is connected with the damping device (3) through the middle connecting bus (4).
3. The SF6 insulating armor type intelligent cable accessory special test equipment of claim 1, wherein: the gas transformer (2), the damping device (3), the intermediate connection bus (4), the isolating switch (5) and the capacitive voltage divider (11) are respectively arranged in the inflatable metal shielding tank bodies, and the inflatable metal shielding tank bodies are connected through inflatable metal shielding pipelines.
4. The SF6 insulating armor type intelligent cable accessory special test equipment of claim 3, wherein: the gas transformer (2), the damping device (3), the intermediate connection bus (4), the isolating switch (5) and the capacitive voltage divider (11) are assembled and connected through basin insulators.