Auxiliary device for continuous current test of vertical disconnecting switch

Abstract

The invention provides an auxiliary device for a continuous current test of a vertical disconnecting switch. The auxiliary device comprises two supporting units which are respectively used for fixing two ends of the vertical disconnecting switch. Each supporting unit comprises a supporting frame and at least one connecting assembly arranged on the supporting frame in a sliding mode, each connecting assembly comprises a connecting rod and an insulating connecting plate, one end of each connecting rod is connected with the supporting frame in a sliding mode, and the other end of each connecting rod is provided with the corresponding insulating connecting plate; and the insulation connecting plate is connected and fixed with the end part of the vertical isolation switch. According to the auxiliary device, the vertical disconnecting switch can be horizontally suspended and fixed for testing, and the problems that high-altitude operation is needed when an existing vertical disconnecting switch is subjected to a continuous current test, time and labor are wasted, and safety is not achieved are solved.

Description

Technical Field

[0001] The invention relates to the technical field of power systems, and in particular to an auxiliary device for a vertical isolating switch to perform a continuous current test. Background Art

[0002] The vertical isolating switch is composed of a base, a porcelain bottle, a conductive part, and a static contact. The 110kv vertical isolation height is generally 6 to 7 meters. As the power level increases, its height becomes higher and higher. When connecting its terminals to the power supply for a continuous current test, high-altitude work is required when connecting the copper busbar or copper stranded wire, and it needs to be supported and fixed, which is time-consuming, labor-intensive and unsafe.

[0003] In summary, there is an urgent need for an auxiliary device for continuous current testing of vertical disconnectors to solve the problems existing in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide an auxiliary device for continuous current test of vertical isolating switch, aiming to solve the problem that the continuous current test of vertical isolating switch in the prior art requires high-altitude operation, which is time-consuming, labor-intensive and unsafe. The specific technical solution is as follows:

[0005] An auxiliary device for a vertical disconnector to perform a continuous current test comprises two support units respectively used to fix the two ends of the vertical disconnector; the support unit comprises a support frame and at least one connecting assembly slidably arranged on the support frame, the connecting assembly comprises a connecting rod and an insulating connecting plate, one end of the connecting rod is slidably connected to the support frame, and the other end of the connecting rod is provided with the insulating connecting plate, and the insulating connecting plate is used to realize connection and fixation with the end of the vertical disconnector.

[0006] Preferably, the connecting rod and the support frame are slidably connected via a clamping assembly; an adjustment hole is provided on the vertical panel of the support frame, and the clamping assembly includes a clamping backplate, a first clamping member and a second clamping member; the first clamping member and the second clamping member cooperate to clamp the connecting rod, and a connecting flange is provided on the first clamping member and / or the second clamping member, and the connecting flange and the clamping backplate are respectively located on both sides of the vertical panel, and the connecting flange and the clamping backplate are connected by bolts passing through the adjustment hole.

[0007] Preferably, the first clamping member and the second clamping member are fixed by bolts, so that the first clamping member and the second clamping member cooperate to clamp the connecting rod.

[0008] Preferably, the support frame comprises a vertical panel, a bottom plate and a diagonal support plate, and the vertical panel, the bottom plate and the diagonal support plate form a triangular structure.

[0009] Preferably, one end of the connecting rod on which the insulating connecting plate is provided is provided with a mounting flange, and the insulating connecting plate is provided on the mounting flange.

[0010] Preferably, the support unit also includes a height adjustment device arranged below the support frame, the height adjustment device includes a bottom frame, a first wedge block, a second wedge block and a driving screw, the first wedge block and the second wedge block are stacked on the bottom frame, the second wedge block is located below the first wedge block and the inclined surfaces of the two are arranged in contact with each other, a threaded hole is provided on the second wedge block, the driving screw passes through the bottom frame and is threadedly connected to the threaded hole.

[0011] Preferably, the circumferential side of the first wedge block is slidably arranged between the inner wall of the bottom frame, the bottom surface of the second wedge block is slidably arranged between the upper surface of the bottom plate of the bottom frame, and a limiting nut is provided on the driving screw, which presses against the bottom frame to limit the movement of the driving screw along its own length direction.

[0012] Preferably, a roller or a slide rail assembly is provided between the peripheral side of the first wedge block and the inner wall of the bottom frame, and a roller or a slide rail assembly is provided between the bottom surface of the second wedge block and the upper surface of the bottom plate of the bottom frame.

[0013] Preferably, at least one end of the drive screw is provided with a drive handle.

[0014] The application of the technical solution of the present invention has the following beneficial effects:

[0015] The auxiliary device of the present invention can realize the horizontal suspension and fixing of the vertical isolating switch for testing, which solves the problem that the existing vertical isolating switch (i.e., vertical state) needs to be operated at high altitude for continuous current testing, which is time-consuming, labor-intensive and unsafe. The auxiliary device of the present invention does not need to support and fix the copper bar or copper stranded wire, which reduces the workload. By appropriately replacing the insulating plate connecting plate, it can adapt to the continuous current test of the vertical isolating switch of 110kv and above. The present invention can be used to perform the detection and installation of the continuous current test of the vertical isolating switch on the ground, so that the current carrying capacity detection of the vertical isolating switch can be performed more safely, stably and efficiently.

[0016] The height of the support unit can be freely adjusted by the height adjustment device. After lowering the height, it is convenient to assemble the vertical isolating switch and the insulating connecting plate, and it is also convenient for testers to perform wiring operations. After the wiring is completed, the vertical isolating switch is raised by the height adjustment device to facilitate subsequent continuous current testing to ensure the safety of the test. The height adjustment device of the present invention can flexibly adjust the suspended height of the vertical isolating switch, which is convenient for testers to operate at different stages of the test.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a side view of a support unit in the auxiliary device;

[0020] Figure 2 is a front view of the support unit;

[0021] Figure 3 It is a schematic diagram of the application status of the auxiliary device;

[0022] Figure 4 This is a schematic diagram of the height adjustment device.

[0023] Among them, 1. support frame, 1.1. vertical panel, 1.2. bottom plate, 1.3. diagonal support plate, 1.4. adjustment hole, 2. connecting rod, 3. clamping assembly, 3.1. clamping back plate, 3.2. first clamping piece, 3.3. second clamping piece, 4. insulating connecting plate, 5. vertical isolating switch, 5.1. first terminal, 5.2. second terminal, 6. height adjustment device, 6.1. bottom frame, 6.2. first wedge block, 6.3. second wedge block, 6.4. roller, 6.5. driving screw, 6.6. limiting nut, 6.7. driving handle. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below, and preferred embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 3This embodiment provides an auxiliary device for continuous current testing of a vertical disconnector, including two support units respectively used to fix the two ends of the vertical disconnector 5, and the two support units are arranged relative to each other to realize the horizontal suspension fixation of the vertical disconnector; the support unit includes a support frame 1 and at least one connecting component slidably arranged on the support frame, and the connecting component includes a connecting rod 2 and an insulating connecting plate 4, one end of the connecting rod 2 is slidably connected to the support frame 1, and the other end thereof is provided with the insulating connecting plate 4, and the connection and fixation with the end of the vertical disconnector 5 are realized through the insulating connecting plate 4.

[0028] Specifically, the number of connection components on the support frame 1 depends on the number of positions where the ends of the vertical isolating switch 5 need to be threadedly fixed, and the sliding setting of the connection components is to adapt to the distance between the threaded fixing positions to facilitate installation. In this embodiment, two connection components are arranged on the support frame 1 to meet the needs of different numbers of fixing positions at both ends of the vertical isolating switch 5. For details, please see Figure 1-Figure 3 shown.

[0029] See also Figure 1 The support frame 1 includes a vertical panel 1.1, a bottom plate 1.2 and a diagonal support plate 1.3. The vertical panel 1.1, the bottom plate 1.2 and the diagonal support plate 1.3 form a triangular structure. The triangular structure is stable and can ensure that the vertical disconnector 5 will not shake after being suspended horizontally.

[0030] See also Figure 1 In this embodiment, the connecting rod 2 and the support frame 1 are slidably connected through a clamping assembly 3. Specifically: an adjustment hole 1.4 is provided on the vertical panel 1.1 of the support frame 1, and the clamping assembly 3 includes a clamping back plate 3.1, a first clamping member 3.2 and a second clamping member 3.3; the first clamping member 3.2 and the second clamping member 3.3 cooperate to clamp the connecting rod 2, and the first clamping member 3.2 and / or the second clamping member 3.3 are provided with a connecting flange, and the connecting flange and the clamping back plate 3.1 are respectively located on both sides of the vertical panel 1.1, and the connecting flange and the clamping back plate 3.1 are connected by bolts passing through the adjustment hole 1.4.

[0031] Furthermore, the first clamping member 3.2 and the second clamping member 3.3 are both provided with semicircular grooves, and the connecting rod 2 is clamped by the cooperation of the two semicircular grooves; at the same time, a connecting flange is provided on the first clamping member 3.2 or the second clamping member 3.3, and the connecting flange is connected to the clamping back plate 3.1 by bolts penetrating the adjusting hole 1.4, so that the connecting flange and the clamping back plate 3.1 are clamped on the vertical panel 1.1, and the position of the clamping assembly is adjusted along the length direction of the adjusting hole through the adjusting hole 1.4. In addition, in some embodiments, the connecting flange may also be composed of a connecting flange 1 and a connecting flange 2, for example, the first clamping member 3.2 is provided with a connecting flange 1, and the second clamping member 3.2 is provided with a connecting flange 2. After the first clamping member and the second clamping member cooperate to clamp the connecting rod 2, the connecting flange 1 and the connecting flange 2 also form a complete connecting flange, so as to cooperate with the clamping back plate 3.1 for clamping and fixing.

[0032] Preferably, the adjustment hole 1.4 in this embodiment is a long hole.

[0033] Preferably, in this embodiment, the first clamping member 3.2 and the second clamping member 3.3 are fixed by bolts, so that the first clamping member 3.2 and the second clamping member 3.3 cooperate to clamp the connecting rod 2. That is, after the first clamping member 3.2 and the second clamping member 3.3 preliminarily clamp the connecting rod 2, the first clamping member and the second clamping member are fastened by bolts to apply a clamping force to the connecting rod 2.

[0034] Of course, in some embodiments, the first clamping member and the second clamping member may also be clamped and fixed by a buckle; those skilled in the art may adopt a locking structure commonly used in the art to achieve clamping and fixing between the first clamping member and the second clamping member, which will not be listed in detail in this embodiment.

[0035] In addition, in some embodiments, the end of the connecting rod 2 may also be configured as a C-shaped slide groove structure, and the connecting rod 2 is slidably set on the vertical panel 1.1 through the C-shaped slide groove (that is, the vertical panel 1.1 is equivalent to a slide rail), and the connecting rod 2 and the vertical panel 1.1 can be limited and fixed by locking pins or bolts. For example, the vertical panel 1.1 is supported by bolts to achieve limited fixation, or the locking pin is inserted into the vertical panel 1.1 and the end of the connecting rod 2 (that is, the C-shaped slide groove structure) at the same time to achieve limited fixation.

[0036] For further information, see Figure 1One end of the connecting rod 2 on which the insulating connecting plate 4 is arranged is provided with a mounting flange, and the insulating connecting plate 4 is arranged on the mounting flange. The mounting flange is used to realize the installation and fixation of the insulating connecting plate 4, thereby reducing the difficulty of assembling the insulating connecting plate 4 and the connecting rod 2, and is connected with the vertical isolating switch 5 through the insulating connecting plate 4, thereby ensuring good insulation between the supporting unit and the vertical isolating switch 5.

[0037] See also Figure 3 When the auxiliary device of the present embodiment is used, the first terminal 5.1 and the second terminal 5.2 of the vertical isolating switch 5 are respectively fixed by the support units on the left and right sides, wherein the first terminal 5.1 (i.e. the left side) of the vertical isolating switch 5 is connected and fixed by two connecting components on the support unit, and the second terminal 5.2 (i.e. the right side) of the vertical isolating switch 5 is connected and fixed by one connecting component on the support unit; after the fixing and installation is completed, the copper bus or copper stranded wire is connected to the terminal of the vertical isolating switch and the power supply is connected, and the continuous current test can be carried out by powering on.

[0038] The auxiliary device of this embodiment can realize the test of the vertical disconnector 5 being suspended horizontally, which solves the problem that the existing vertical disconnector 5 (i.e., vertical state) needs to be operated at high altitude when conducting continuous current test, which is time-consuming, labor-intensive and unsafe. At the same time, there is no need to support and fix the copper bar or copper stranded wire, which reduces the workload; by appropriately replacing the insulating plate connecting plate, it can adapt to the continuous current test of 110kv and above vertical disconnectors.

[0039] Embodiment 2:

[0040] On the basis of Example 1, the support unit in this embodiment further includes a height adjustment device 6 arranged below the support frame 1, such as Figure 4 As shown: the height adjustment device 6 includes a bottom frame 6.1, a first wedge block 6.2, a second wedge block 6.3 and a driving screw 6.5, the first wedge block 6.2 and the second wedge block 6.3 are stacked in the bottom frame 6.1, the second wedge block 6.3 is located below the first wedge block 6.2 and the inclined surfaces of the two are arranged in contact with each other, the second wedge block 6.3 is provided with a threaded hole, the driving screw 6.5 penetrates the bottom frame 6.1 and is threadedly connected to the threaded hole; the driving screw 6.5 is rotated to drive the second wedge block 6.3 to slide along the length direction of the driving screw 6.5, thereby realizing the first wedge block 6.2 to be raised or lowered, and the bottom plate 1.2 of the support frame is arranged on the first wedge block 6.2, so as to adjust the height of the vertical isolating switch 5.

[0041] Preferably, the driving screw 6.5 and the threaded hole need to be able to self-lock to prevent the adjusted height value from changing due to the self-rotation of the driving screw 6.5. For the setting of the thread self-locking, please refer to the prior art and will not be described in detail in this embodiment.

[0042] See also Figure 4 The first wedge block 6.2 is slidably arranged between the peripheral side and the inner wall of the bottom frame 6.1, thereby guiding the movement of the first wedge block 6.2 in the vertical direction; the bottom surface of the second wedge block 6.3 is slidably arranged between the upper surface of the bottom plate of the bottom frame 6.1, thereby reducing the friction between the second wedge block 6.3 and the bottom plate, making the height adjustment more labor-saving.

[0043] The driving screw 6.5 is provided with a limiting nut 6.6, and the limiting nut 6.6 abuts against the bottom frame 6.1 to limit the movement of the driving screw 6.5 along its own length direction. Specifically: both ends of the driving screw 6.5 are provided with limiting nuts 6.6 on the outside or inside of the bottom frame 6.1, or one end of the driving screw 6.5 is provided with limiting nuts 6.6 on the outside and inside of the bottom frame, so as to limit the driving screw 6.5 and prevent the driving screw 6.5 from moving along its own length direction, resulting in changes in the adjusted height value; Figure 4 It is shown in the figure that both ends of the driving screw 6.5 are provided with limit nuts 6.6 on the outer side of the bottom frame 6.1.

[0044] Specifically, a roller 6.4 or a slide rail assembly is provided between the peripheral side of the first wedge block 6.2 and the inner wall of the bottom frame 6.1, and a roller 6.4 or a slide rail assembly is provided between the bottom surface of the second wedge block 6.3 and the upper surface of the bottom plate of the bottom frame 6.1, and the roller 6.4 or the slide rail assembly is used to achieve the effect of guiding or reducing friction resistance.

[0045] Preferably, at least one end of the driving screw 6.5 is provided with a driving handle 6.7, and the driving screw 6.5 is rotated by the driving handle 6.7 to achieve the purpose of adjusting the height.

[0046] The auxiliary device of this embodiment can freely adjust the height of the support unit through the height adjustment device. After lowering the height, it is convenient to assemble the vertical isolating switch and the insulating connecting plate, and it is also convenient for the test personnel to perform wiring operations. After the wiring is completed, the vertical isolating switch is raised through the height adjustment device 6 to facilitate the subsequent continuous current test to ensure the safety of the test. The height adjustment device 6 of this embodiment can flexibly adjust the suspended height of the vertical isolating switch, which is convenient for the test personnel to operate at different stages of the test.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary device for continuous current test of vertical disconnector, characterized in that: The invention comprises two support units respectively used to fix the two ends of a vertical isolating switch (5); the support unit comprises a support frame (1) and at least one connection component slidably arranged on the support frame, the connection component comprises a connection rod (2) and an insulating connection plate (4), one end of the connection rod (2) is slidably connected to the support frame (1), and the other end of the connection rod (2) is provided with the insulating connection plate (4), and the connection and fixation with the end of the vertical isolating switch (5) are achieved through the insulating connection plate (4).

2. The auxiliary device for continuous current test of vertical disconnector according to claim 1, characterized in that: The connecting rod (2) and the support frame (1) are slidably connected via a clamping assembly (3); an adjustment hole (1.4) is provided on the vertical panel (1.1) of the support frame (1); the clamping assembly (3) comprises a clamping back plate (3.1), a first clamping member (3.2) and a second clamping member (3.3); the first clamping member (3.2) and the second clamping member (3.3) cooperate to clamp the connecting rod (2); a connecting flange is provided on the first clamping member (3.2) and / or the second clamping member (3.3); the connecting flange and the clamping back plate (3.1) are respectively located on two sides of the vertical panel (1.1); and the connecting flange and the clamping back plate (3.1) are connected via bolts penetrating the adjustment hole (1.4).

3. The auxiliary device for continuous current test of vertical disconnector according to claim 2, characterized in that: The first clamping piece (3.2) and the second clamping piece (3.3) are fixed by bolts, so that the first clamping piece (3.2) and the second clamping piece (3.3) cooperate to clamp the connecting rod (2).

4. The auxiliary device for continuous current test of vertical disconnector according to claim 1, characterized in that: The support frame (1) comprises a vertical panel (1.1), a bottom plate (1.2) and a diagonal support plate (1.3); the vertical panel (1.1), the bottom plate (1.2) and the diagonal support plate (1.3) form a triangular structure.

5. The auxiliary device for continuous current test of vertical disconnector according to claim 1, characterized in that: One end of the connecting rod (2) on which the insulating connecting plate (4) is provided is provided with a mounting flange, and the insulating connecting plate (4) is provided on the mounting flange.

6. The auxiliary device for continuous current test of vertical disconnector according to any one of claims 1 to 5, characterized in that: The support unit further comprises a height adjustment device (6) arranged below the support frame (1), the height adjustment device (6) comprising a bottom frame (6.1), a first wedge block (6.2), a second wedge block (6.3) and a driving screw rod (6.5), the first wedge block (6.2) and the second wedge block (6.3) being stacked and arranged in the bottom frame (6.1), the second wedge block (6.3) being located below the first wedge block (6.2) and the inclined surfaces of the two being arranged in abutment with each other, the second wedge block (6.3) being provided with a threaded hole, the driving screw rod (6.5) being arranged to penetrate the bottom frame (6.1) and being threadedly connected to the threaded hole.

7. The auxiliary device for continuous current test of vertical disconnector according to claim 6, characterized in that: The first wedge block (6.2) is slidably arranged between the circumferential side and the inner wall of the bottom frame (6.1), the bottom surface of the second wedge block (6.3) is slidably arranged between the upper surface of the bottom plate of the bottom frame (6.1), and a limiting nut (6.6) is provided on the driving screw rod (6.5), and the limiting nut (6.6) abuts against the bottom frame (6.1) to limit the movement of the driving screw rod (6.5) along its own length direction.

8. The auxiliary device for continuous current test of vertical disconnector according to claim 7, characterized in that: A roller (6.4) or a slide rail assembly is provided between the peripheral side of the first wedge block (6.2) and the inner wall of the bottom frame (6.1), and a roller (6.4) or a slide rail assembly is provided between the bottom surface of the second wedge block (6.3) and the upper surface of the bottom plate of the bottom frame (6.1).

9. The auxiliary device for continuous current test of vertical disconnector according to claim 6, characterized in that: At least one end of the driving screw rod (6.5) is provided with a driving handle (6.7).

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