Temperature rise and voltage withstanding combined test device for three-phase integrated GIL bus

Abstract

The utility model discloses a three-phase integrated GIL bus temperature rise and withstand voltage combined test device, which comprises a three-phase tubular bus, a support plate is arranged below the three-phase tubular bus, two branch tools are arranged above the support plate, the input ends of the two branch tools are electrically connected with the left end and the right end of the three-phase tubular bus respectively, and the input ends of the two branch tools are electrically connected with the three-phase tubular bus respectively. The output ends of the two branch tools are jointly and electrically connected with three single-phase tubular bus tools, the outer surface of each single-phase tubular bus tool is electrically connected with a current rising device, the bottom surface of each single-phase tubular bus tool is electrically connected with an output sleeve, the bottom end of each output sleeve is electrically connected with a voltage boosting device, and the voltage boosting device is electrically connected with the output sleeve. And a controller is fixedly mounted on the front surface of the supporting plate. The withstand voltage combined test device can comprehensively consider the insulation and heat dissipation performance of the bus under the simultaneous action of high current and high voltage, so that the performance of the bus can be evaluated more comprehensively, and the actual use state of the three-phase common GIL bus can be completely simulated.

Description

Technical Field

[0001] This utility model relates to the field of three-phase power transmission, and in particular to a combined test device for temperature rise and withstand voltage of a three-phase common GIL bus. Background Technology

[0002] Traditional three-phase power transmission uses a set of three parallel conduit busbars arranged vertically. Each busbar contains a conductor concentric with the outer casing, and each section is supported by a set of insulators. The testing methods for this structure are relatively mature, generally employing separate voltage and current tests. That is, the current carrying capacity is low during AC withstand voltage tests, and the voltage is low during high current temperature rise tests. This structural type has sufficient structural margin. With the advancement of technology, a three-phase integrated GIL structure has emerged. This structure can significantly reduce the tunnel space size and busbar manufacturing cost. However, the internal structure of the casing is compact and susceptible to various factors. The traditional separate voltage and current test methods cannot fully simulate the actual usage conditions. Therefore, we propose a combined three-phase integrated GIL busbar temperature rise and withstand voltage test device to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a combined test device for temperature rise and withstand voltage of a three-phase integrated GIL busbar, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A combined temperature rise and withstand voltage test device for a three-phase common GIL busbar includes a three-phase tubular busbar. A support plate is provided below the three-phase tubular busbar, and two branch fixtures are provided above the support plate. The input ends of the two branch fixtures are electrically connected to the left and right ends of the three-phase tubular busbar, respectively. The output ends of the two branch fixtures are electrically connected to three single-phase tubular busbar fixtures. A current boosting device is electrically connected to the outer surface of each single-phase tubular busbar fixture, and an output sleeve is electrically connected to the bottom surface of each single-phase tubular busbar fixture. A voltage boosting device is electrically connected to the bottom end of each output sleeve. A controller is fixedly installed on the front of the support plate.

[0006] In a further embodiment, two positioning blocks are fixedly connected to the upper surface of the support plate, and the upper surfaces of the two positioning blocks are in contact with the outer surface of the three-phase busbar.

[0007] In a further embodiment, a reinforcing plate is provided above the support plate, and the two positioning blocks are fixedly connected to the outer surface of the reinforcing plate on their adjacent sides.

[0008] In a further embodiment, two support blocks are fixedly connected to the upper surface of the support plate, and the upper surfaces of the two support blocks are respectively fixedly connected to the bottom surfaces of the two branch fixtures. Warning signs are fixedly connected to the front surfaces of the two branch fixtures.

[0009] In a further embodiment, two vertical plates are fixedly connected to the upper surface of the support plate, and a carrier plate is fixedly connected to the upper surface of the two vertical plates. The bottom surface of each of the current-lifting devices is fixedly connected to the upper surface of the carrier plate.

[0010] In a further embodiment, two bases are fixedly connected to the bottom surface of the support plate, and two support blocks are fixedly connected to the bottom surface of the support plate.

[0011] In a further embodiment, a horizontal plate is provided below the support plate, and the left and right sides of the horizontal plate are respectively fixedly connected to the side of the two support blocks that are close to each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device, through its three booster devices and three current booster devices, along with two branch fixtures and three single-phase busbar fixtures, can simultaneously input test current and test voltage to a three-phase common busbar, simulating actual usage conditions. This allows the device to comprehensively consider the insulation and heat dissipation performance of the busbar under the simultaneous action of high current and high voltage, thus enabling a more comprehensive evaluation of the busbar's performance and fully simulating the actual usage conditions of a three-phase common GIL busbar. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the front view of the three-phase common GIL bus temperature rise and withstand voltage combined test device.

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the rear view of the combined temperature rise and withstand voltage test device for a three-phase integrated GIL busbar.

[0016] Figure 3 This is a bottom view of a three-dimensional structural schematic diagram of a combined temperature rise and withstand voltage test device for a three-phase integrated GIL busbar.

[0017] Figure 4 This is a sectional view of the side view of the base plate in the three-phase common GIL bus temperature rise and withstand voltage combined test device.

[0018] In the diagram: 1. Three-phase busbar; 2. Branch fixture; 3. Controller; 4. Current booster; 5. Single-phase busbar fixture; 6. Output bushing; 7. Voltage booster; 8. Support plate; 9. Support block; 10. Warning sign; 11. Positioning block; 12. Reinforcing plate; 13. Base; 14. Vertical plate; 15. Carrier plate; 16. Support block; 17. Horizontal plate. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 In this utility model, a three-phase common GIL busbar temperature rise and withstand voltage combined test device includes a three-phase tube busbar 1, a support plate 8 is provided below the three-phase tube busbar 1, and two branch fixtures 2 are provided above the support plate 8. The input ends of the two branch fixtures 2 are electrically connected to the left and right ends of the three-phase tube busbar 1, respectively. The output ends of the two branch fixtures 2 are electrically connected to three single-phase tube busbar fixtures 5. Each single-phase tube busbar fixture 5 has a current boosting device 4 electrically connected to its outer surface, an output sleeve 6 electrically connected to its bottom surface, and a voltage boosting device 7 electrically connected to the bottom end of each output sleeve 6. A controller 3 is fixedly installed on the front of the support plate 8.

[0022] Two positioning blocks 11 are fixedly connected to the upper surface of the support plate 8. The upper surfaces of the two positioning blocks 11 are in contact with the outer surface of the three-phase busbar 1. A reinforcing plate 12 is provided above the support plate 8. The sides of the two positioning blocks 11 that are close to each other are fixedly connected to the outer surface of the reinforcing plate 12. Through the cooperation of the positioning blocks 11 and the reinforcing plate 12, the three-phase busbar 1 can be supported, which will make the three-phase busbar 1 more stable in the test.

[0023] Two support blocks 9 are fixedly connected to the upper surface of the support plate 8. The upper surfaces of the two support blocks 9 are fixedly connected to the bottom surfaces of the two branch fixtures 2 respectively. Warning signs 10 are fixedly connected to the front surfaces of the two branch fixtures 2. Two upright plates 14 are fixedly connected to the upper surface of the support plate 8. A carrier plate 15 is fixedly connected to the upper surface of the two upright plates 14. The bottom surface of each flow booster 4 is fixedly connected to the upper surface of the carrier plate 15. The branch fixtures 2 can be supported by the support blocks 9. The flow booster 4 can be stably supported by the carrier plate 15 and the upright plates 14.

[0024] Two bases 13 are fixedly connected to the bottom surface of the support plate 8, and two support blocks 16 are fixedly connected to the bottom surface of the support plate 8. A horizontal plate 17 is provided below the support plate 8. The left and right sides of the horizontal plate 17 are fixedly connected to the side of the two support blocks 16 that are close to each other. By using the bases 13 and support blocks 16, and in cooperation with the horizontal plate 17, the bottom of the support plate 8 can be supported, thereby enhancing the stability of the bottom of the support plate 8.

[0025] The working principle of this utility model is as follows: First, the test device is connected to the power supply, and the three-phase busbar 1 is placed above the two positioning blocks 11. Then, the three-phase busbar 1 is connected to the two branch fixtures 2. The branch fixtures 2 are used to divide the three-phase busbar 1 into three single-phase busbar fixtures 5. Then, through three voltage boosting devices 7 and three current boosting devices 4, the test current and test voltage of phase A, phase B and phase C can be simultaneously input to the three-phase busbar 1, so that the tested three-phase busbar 1 can simulate the actual use state and strictly test its insulation performance.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined temperature rise and withstand voltage test device for a three-phase common GIL busbar, characterized in that: The system includes a three-phase busbar (1), a support plate (8) is provided below the three-phase busbar (1), and two branch fixtures (2) are provided above the support plate (8). The input ends of the two branch fixtures (2) are electrically connected to the left and right ends of the three-phase busbar (1) respectively. The output ends of the two branch fixtures (2) are electrically connected to three single-phase busbar fixtures (5). Each single-phase busbar fixture (5) has a current boosting device (4) electrically connected to its outer surface. Each single-phase busbar fixture (5) has an output sleeve (6) electrically connected to its bottom surface. Each output sleeve (6) has a voltage boosting device (7) electrically connected to its bottom end. A controller (3) is fixedly installed on the front of the support plate (8).

2. The combined temperature rise and withstand voltage test device for a three-phase co-type GIL busbar according to claim 1, characterized in that: The upper surface of the support plate (8) is fixedly connected to two positioning blocks (11), and the upper surfaces of the two positioning blocks (11) are in contact with the outer surface of the three-phase busbar (1).

3. The combined temperature rise and withstand voltage test device for a three-phase co-type GIL busbar according to claim 2, characterized in that: A reinforcing plate (12) is provided above the support plate (8), and the two positioning blocks (11) are fixedly connected to the outer surface of the reinforcing plate (12) on their sides that are close to each other.

4. The combined temperature rise and withstand voltage test device for a three-phase co-type GIL busbar according to claim 1, characterized in that: The upper surface of the support plate (8) is fixedly connected to two support blocks (9), the upper surfaces of the two support blocks (9) are fixedly connected to the bottom surfaces of the two branch fixtures (2), and warning signs (10) are fixedly connected to the front surfaces of the two branch fixtures (2).

5. The combined temperature rise and withstand voltage test device for a three-phase co-type GIL busbar according to claim 1, characterized in that: The upper surface of the support plate (8) is fixedly connected to two vertical plates (14), and the upper surfaces of the two vertical plates (14) are fixedly connected to a carrier plate (15). The bottom surface of each of the rising devices (4) is fixedly connected to the upper surface of the carrier plate (15).

6. The combined temperature rise and withstand voltage test device for a three-phase co-type GIL busbar according to claim 1, characterized in that: The bottom surface of the support plate (8) is fixedly connected to two bases (13), and the bottom surface of the support plate (8) is fixedly connected to two support blocks (16).

7. The combined temperature rise and withstand voltage test device for a three-phase co-type GIL busbar according to claim 6, characterized in that: A horizontal plate (17) is provided below the support plate (8), and the left and right sides of the horizontal plate (17) are fixedly connected to the side of the two support blocks (16) that are close to each other.

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