Cable support for GCB withstand voltage test

Abstract

A cable support for a GCB withstand voltage test comprises two supporting rods, a magnetic attraction base is arranged at the lower end of a supporting seat, rod sleeves are arranged at the upper ends of the supporting rods, a bearing rod penetrates through the two rod sleeves and is arranged at the upper ends of the supporting rods, the bearing rod is sleeved with a sliding sleeve, and a threading ring is arranged at the bottom of the sliding sleeve. According to the cable support used for the GCB withstand voltage test, the insulation telescopic supporting rods are adopted, the positions and heights of the two supporting rods can be adjusted according to the shape of a GCB shell at the actual wiring position, then the bearing rod and the threading ring are installed, a test wire can penetrate through the threading ring, and therefore the test wire is overhead. The strong magnetic adsorption device can adsorb and fix the insulation supporting rod on the GCB shell, it is guaranteed that the insulation supporting rod has enough stability, the device is installed in a modularized mode, field disassembly and assembly are convenient, the GCB withstand voltage test efficiency can be rapidly improved through the device, and the safety of testers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage resistance test, in particular to a cable bracket used for GCB voltage resistance test. Background Art

[0002] When the current GCB (generator circuit breaker) conducts an overall AC withstand voltage test, the test voltage is as high as 70.4kV. It is necessary to find a fixed position above the GCB, fix the rope, and hang the high-voltage test line on the rope. Since the surface of the on-site wall or the running electrical equipment is relatively smooth, the rope cannot be fixed, which easily causes the high-voltage test line to contact the GCB shell, causing discharge during the withstand voltage process, and even high voltage breakdown of the test line, causing the withstand voltage test to be forced to stop; in addition, the high-voltage test line is tied to the rope, resulting in the length of the test being unable to be freely adjusted, resulting in low flexibility of the test line. Fixing the rope and tying the test line before the test is time-consuming and inefficient, and the GCB shell is high above the ground, which poses a safety risk. After the test, the untying and storage of the rope and test line are more cumbersome. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a cable bracket used for GCB withstand voltage test, which can hang the test line on the GCB to prevent discharge phenomenon from occurring.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a cable bracket for GCB withstand voltage test, comprising two support rods, a magnetic base is provided at the lower end of the support rod, a rod sleeve is provided at the upper end of the support rod, a load-bearing rod passes through the two rod sleeves and is arranged at the upper end of the support rod, a sliding sleeve is sleeved on the load-bearing rod, and a wire threading ring is provided at the bottom of the sliding sleeve.

[0005] Preferably, the bearing rod is provided with a plurality of adjustment holes, and through holes matching the adjustment holes are provided on the rod sleeve and the sliding sleeve, and the bearing rod and the sliding sleeve are fixed with a latch.

[0006] Preferably, a connecting rod is provided between the upper end of the support rod and the rod sleeve, and the connecting rod is rotatably connected to the support rod.

[0007] Preferably, the support rod is a telescopic rod, comprising a fixed portion and a telescopic portion, the telescopic portion is sleeved in the fixed portion, and a lock buckle is provided at the upper end of the fixed portion.

[0008] Preferably, the support rod, rod sleeve, bearing rod, sliding sleeve and threading ring are all made of insulating materials, specifically epoxy resin material.

[0009] Preferably, the support rod is threadedly connected to the magnetic base.

[0010] The utility model provides a cable support for GCB withstand voltage test, which adopts an insulating telescopic support rod. The position and height of the two support rods can be adjusted according to the shape of the GCB shell at the actual wiring position. Then, the load-bearing rod and the threading ring are installed, and the test line can be passed through the threading ring, so that the test line is suspended. The strong magnetic adsorption device can adsorb and fix the insulating support rod on the GCB shell to ensure that the insulating support rod has sufficient stability. The device is modularly installed and easy to disassemble and assemble on site. Through the device, the efficiency of the GCB withstand voltage test can be quickly improved to ensure the safety of the test personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model after the support rod is raised;

[0015] Figure 4 It is a side view of the utility model when in use. DETAILED DESCRIPTION

[0016] like Figure 1-2 As shown, a cable bracket for GCB withstand voltage test includes two support rods 1, a magnetic base 6 is provided at the lower end of the support rod 1, a rod sleeve 2 is provided at the upper end of the support rod 1, a load-bearing rod 3 passes through the two rod sleeves 2 and is provided at the upper end of the support rod 1, a sliding sleeve 4 is sleeved on the load-bearing rod 3, and a wire threading ring 5 is provided at the bottom of the sliding sleeve 4.

[0017] Preferably, the bearing rod 3 is provided with a plurality of adjustment holes 7, and through holes 8 matching with the adjustment holes 7 are provided on the rod sleeve 2 and the sliding sleeve 4, and the bearing rod 3 and the sliding sleeve 4 are fixed by a latch 9.

[0018] Preferably, a connecting rod 10 is provided between the upper end of the support rod 1 and the rod sleeve 2, and the connecting rod 10 is rotatably connected to the support rod 1. When installing the load-bearing rod 3, rotating the rod sleeve 2 facilitates installation.

[0019] Preferably, the support rod 1 is a telescopic rod, comprising a fixed portion 1-1 and a telescopic portion 1-2, the telescopic portion 1-2 is sleeved in the fixed portion 1-1, and a lock buckle 1-3 is provided at the upper end of the fixed portion 1-1.

[0020] Preferably, the support rod 1, the rod sleeve 2, the bearing rod 3, the sliding sleeve 4 and the threading ring 5 are all made of insulating materials, specifically epoxy resin materials.

[0021] Preferably, the support rod 1 is threadedly connected to the magnetic base 6 .

[0022] The voltage level of the withstand voltage test is as high as 70.4kV. We use a safety distance of 110 kV, that is, a safety distance of 1.5m is guaranteed between the test line and the GCB shell. Figure 3 As shown in the figure, if the GCB shell at the wiring position is bulged, raise the support rod 1 to ensure a safe distance. Figure 4 As shown, the test line can pass through the wire loops of multiple brackets, and then turn downward to make connections after reaching a safe position.

[0023] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A cable support for GCB withstand voltage test, characterized in that: The invention comprises two support rods (1), a magnetic base (6) is provided at the lower end of the support rod (1), a rod sleeve (2) is provided at the upper end of the support rod (1), a bearing rod (3) passes through the two rod sleeves (2) and is provided at the upper end of the support rod (1), a sliding sleeve (4) is provided on the bearing rod (3), and a threading ring (5) is provided at the bottom of the sliding sleeve (4).

2. A cable bracket for GCB withstand voltage test according to claim 1, characterized in that: The bearing rod (3) is provided with a plurality of adjustment holes (7), and through holes (8) matching the adjustment holes (7) are provided on the rod sleeve (2) and the sliding sleeve (4), and a latch (9) is used to fix the bearing rod (3) and the sliding sleeve (4).

3. A cable bracket for GCB withstand voltage test according to claim 1 or 2, characterized in that: A connecting rod (10) is provided between the upper end of the support rod (1) and the rod sleeve (2), and the connecting rod (10) is rotatably connected to the support rod (1).

4. A cable support for GCB withstand voltage test according to claim 1, characterized in that: The support rod (1) is a telescopic rod, comprising a fixed portion (1-1) and a telescopic portion (1-2), the telescopic portion (1-2) being sleeved in the fixed portion (1-1), and a lock buckle (1-3) being provided at the upper end of the fixed portion (1-1).

5. A cable support for GCB withstand voltage test according to claim 1, characterized in that: The support rod (1), the rod sleeve (2), the bearing rod (3), the sliding sleeve (4) and the threading ring (5) are all made of insulating materials.

6. A cable support for GCB withstand voltage test according to claim 1, characterized in that: The support rod (1) is threadedly connected to the magnetic base (6).

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