CN209841999U - Liftable insulating tool electrical voltage withstand test wiring device - Google Patents
Liftable insulating tool electrical voltage withstand test wiring device Download PDFInfo
- Publication number
- CN209841999U CN209841999U CN201821851782.XU CN201821851782U CN209841999U CN 209841999 U CN209841999 U CN 209841999U CN 201821851782 U CN201821851782 U CN 201821851782U CN 209841999 U CN209841999 U CN 209841999U
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- withstand voltage
- voltage test
- wiring device
- liftable
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 72
- 239000002184 metal Substances 0.000 claims abstract description 72
- 239000012212 insulator Substances 0.000 claims abstract description 26
- 239000000725 suspension Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses an electric withstand voltage test termination of insulating tool of liftable, relate to withstand voltage test technical field, support frame safe distance is not enough and nonadjustable problem when solving current experiment, including electric block and the composite insulator who drives and the up-and-down motion by electric block, composite insulator's lower extreme is equipped with the metal suspension frame that is used for hanging insulating tool, be connected with experimental voltage connecting wire on the suspension frame, still including short circuit device, short circuit device is including the wire, earthing pole and the metal clamp that is used for pressing from both sides tight insulating tool, earthing pole ground connection, wire one end is connected in the earthing pole, the other end is connected in the metal clamp, adjust the test to ground safe distance in order to adapt to different grade voltages through the height of adjusting metal suspension frame. The utility model discloses simple structure, it is easy and simple to handle, safe distance to ground is adjustable, can carry out the experiment of different grade voltages, can be applicable to various types of insulating tool, has extensive application prospect.
Description
Technical Field
The utility model relates to a withstand voltage test technical field, in particular to liftable insulating tool electrical withstand voltage test termination.
Background
According to the regulations of national grid company electric safety work regulations, insulation rod safety tools (insulation tools) such as insulation rods, insulation ropes and the like need to be subjected to voltage withstand test once every year to check the insulation performance of the insulation rod safety tools. This is because the insulation tool is applied to live working for a long time, and aging, damage or moisture inevitably occurs as the number of times of use increases, and the insulation performance thereof is also greatly reduced. If the insulation tool with poor insulation performance is applied to field live operation, the damage to users is easily caused. Since the insulation tool, which is aged, damaged or affected with moisture, may have phenomena such as breakdown, flashover or overheating when subjected to a high voltage, the withstand voltage test is an effective method for verifying the insulation performance of the insulation tool.
When the insulating tools are tested, the insulating tools are large in quantity and multiple in variety, the withstand voltage test lengths of the insulating tools with different voltage grades are different, and the wire diameters are different, for example, the 500kV is 4.1 meters, the 220kV is 2.1 meters, and the 110kV is 1.3 meters. The test mode of the insulation tool commonly used at present is that the insulation tool is generally horizontally (transversely) placed on an insulation support frame, one end of the insulation tool is wound by a copper wire and is grounded, and the other end of the insulation tool is connected with a high-voltage end of a test transformer. If the system with the insulating tool voltage of 500kV is used, the test voltage is up to 580kV, the requirement on the ground safety distance is high, the insulating tool is horizontally placed, the insulating requirement is high, the cost for building the support frame is high, even partial experimenters carry out a voltage withstand test by segmentation (segmenting the insulating tool), the segmented test method does not meet the requirements of preventive test procedures (DL/T976-2017) of tools, devices and equipment for live working, and the result obtained by the test is unreliable.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a liftable insulating tool electrical withstand voltage test termination is provided, it adopts following technical scheme to realize:
a liftable wiring device for an electrical withstand voltage test of an insulating tool comprises an electric hoist and a composite insulator driven by the electric hoist to move up and down, wherein a metal suspension frame used for suspending the insulating tool is arranged at the lower end of the composite insulator, and a test voltage connecting wire is connected to the metal suspension frame; still including short wiring device, short wiring device is including wire, earthing pole and the metal clamp that is used for pressing from both sides tight insulating tool, earthing pole ground connection, wire one end connect in the earthing pole, the other end connect in the metal clamp.
Further, electric block is including the reel, hang arm, lifting rope, couple, motor, button switch and pivot, the motor locate on the reel and through the shaft coupling with the pivot is connected with the drive the pivot rotates, the pivot is located in the reel, the winding has in the pivot the lifting rope, the couple is located on the free end of lifting rope, hang the arm and locate on the reel, button switch with the motor links to each other and is used for control the motor.
Furthermore, the suspension arm also comprises a fixed pivot and a cross rod fixedly arranged on the fixed pivot, and the suspension arm is suspended on the cross rod.
Further, the composite insulator comprises an upper end hanging ring, a lower end hanging ring and an insulator body, wherein the upper end hanging ring is located at the upper end of the insulator body, and the lower end hanging ring is located at the lower end of the insulator body.
Furthermore, the metal suspension frame comprises a metal rectangular frame and a U-shaped ring, the U-shaped ring is located above the metal rectangular frame and connected with four corners of the metal rectangular frame through suspension ropes, metal S-shaped hooks are suspended on four sides of the metal rectangular frame, and the test voltage connection line is connected to the metal rectangular frame.
Furthermore, the rectangular metal frame is made of copper or stainless steel or aluminum alloy; the metal S-shaped hook is made of metal copper or stainless steel or aluminum alloy.
Further, the suspension rope is a steel wire rope.
Furthermore, a spring is arranged on the metal clamp, a binding rope is arranged at the free end of the spring, and a hook is arranged on the binding rope.
Further, the conducting wire is a multi-strand soft copper wire or a copper braided strap; the binding rope is a bare copper wire; the hook is a copper hook; the spring is a metal spring.
Further, the composite insulator is in a multi-section series connection mode.
Compared with the prior art, the beneficial effects of the utility model are that, the utility model provides an insulating tool electrical withstand voltage test termination of liftable, highly change insulating tool test time highly through adjusting the metal and hang the frame highly with the experiment of adjusting safe distance to ground in order to adapt to different grade voltages. The utility model discloses simple structure, it is easy and simple to handle, safe distance to ground is adjustable, can carry out the experiment of different grade voltages, can be applicable to various types of insulating tool, has extensive application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the preferred embodiment of the present invention provides a liftable wiring device for electrical withstand voltage test of an insulation tool, which mainly comprises a fixed pivot 10, a cross bar 20, an electric block 30, a composite insulator 40, a metal suspension frame 50 and a short wiring device 70.
Specifically, as shown in fig. 1, the electric hoist 30 includes a winding drum 37, a suspension arm 31, a lifting rope 32, a hook 33, a motor 34, a button switch 35 and a rotating shaft 36, the motor 34 is disposed on the winding drum 37 and connected to the rotating shaft 36 through a coupling to drive the rotating shaft 36 to rotate, the rotating shaft 36 is disposed in the winding drum 37, the lifting rope 32 is wound on the rotating shaft 36, the lifting rope 32 is a steel wire rope, and has good strength and can bear large pulling force, the hook 33 is disposed on a free end of the lifting rope 32, the suspension arm 31 is disposed on the winding drum 37, and the button switch 35 is connected to the motor 34 and is led out through a cable to remotely control the motor 34. But through button switch 35 remote control motor 34 (motor start-stop and corotation, reversal etc.), motor 34 drives pivot 36 and rotates, and the lift rope 32 of winding on pivot 36 when pivot 36 rotates can be rolled up or loosen so that the couple 33 of lift rope 32 lower extreme rises or descends to drive composite insulator 40 and rise or descend.
The fixed pivot 10 is a building or a high-altitude support, etc., the cross bar 20 is transversely fixed on the fixed pivot 10, and the suspension arm 31 is fixedly suspended on the cross bar 20.
The composite insulator 40 comprises an upper end hanging ring 41, a lower end hanging ring 43 and an insulator body 42, wherein the upper end hanging ring 41 is positioned at the upper end of the insulator body 42, the lower end hanging ring 43 is positioned at the lower end of the insulator body 42, the upper end hanging ring 41 is hooked on the hook 33, and the composite insulator 40 can move up and down under the action of the electric hoist 30. In the preferred embodiment, the composite insulator 40 is in a multi-section series configuration to accommodate different voltage class requirements.
The metal suspension frame 50 comprises a metal rectangular frame 53 and a U-shaped ring 51, the U-shaped ring 51 is positioned above the metal rectangular frame 53 and is connected with four corners of the metal rectangular frame 53 through suspension ropes 52, and the suspension ropes 52 are steel wire ropes, have good strength and can bear large tensile force; the U-shaped ring 51 is hung on the lower end hanging ring 43. The metal rectangular frame 53 is composed of four stainless steel pipes with the same length and the diameter of 30mm, a horizontally placed square structure is formed, metal S-shaped hooks 54 are hung on four sides of the metal rectangular frame 53 respectively, the metal S-shaped hooks 54 are made of stainless steel, the metal S-shaped hooks 54 are used for hanging and hooking insulating tools tightly, and the test voltage connecting wire 55 is connected to the metal rectangular frame 53. The plurality of metal S-shaped hooks 54 can hang and hook a plurality of insulating tools tightly, so that the plurality of insulating tools can be tested simultaneously and are not influenced mutually, and the testing efficiency can be improved.
The shorting device 70 includes a conductive wire 74, a grounding electrode 75, and a metal clamp 73 for clamping the insulating tool; the grounding electrode 75 is buried underground for grounding; the wire 74 is a stranded annealed copper wire with one end connected to ground 75 and the other end connected to metal clip 73. The metal clip 73 is provided with a spring 72, the spring 72 is a metal spring, a binding rope 71 is arranged at the free end of the spring 72, a hook is arranged on the binding rope 71, the binding rope 71 is a bare copper wire, and the hook is a copper hook. The spring 72 and the binding rope 71 are arranged to better realize the stable connection of the metal clip 73 and the insulating tool, the metal clip 73 has certain clamping force when clamping the insulating tool, the spring 72 and the binding rope 71 are wound on the insulating tool, and finally the spring 72 or the metal clip 73 is hooked by a hook on the binding rope 71 to realize the binding and winding of the insulating tool, and finally the fixation is realized. The spring 72 is a metal spring, the binding rope 71 is a bare copper wire, and the hook is a copper hook, so that good contact between an insulating tool and the metal clamp 73 and the wire 74 can be realized, loosening of a connecting cable and a clamp can be effectively prevented, and the connecting cable and the clamp can be quickly fixed on the tested insulating tool to realize good grounding.
Referring to fig. 2, in an electrical withstand voltage test of the insulating rod 60, in practice, the motor 34 is controlled by the button switch 35 to enable the composite insulator 40 and the metal suspension frame 50 to be located at a proper height, and the metal rectangular frame 53 is about 1.5 m from the ground; the metal part 61 of the insulating rod 60 is hung on the metal S-shaped hook 54, then the distance L is determined according to the regulation requirement, the metal clip 73 is clamped on the insulating body 62 of the insulating rod 60 (at the moment, the distance from the position of the metal clip 73 on the insulating body 62 to the metal part 61 of the insulating rod 60 is L), the spring 72 and the binding rope 71 are wound on the insulating body 62 at the position where the metal clip 73 clamps the insulating body 62 for about 2-3 circles, then the hook is hooked on the spring 72, and the binding of the insulating body 62 is realized by the contraction action of the spring 72; similarly, when the electrical withstand voltage test needs to be performed on a plurality of insulating rods (or other insulating tools) at a time, the plurality of insulating rods (or other insulating tools) can be hung on other metal S-shaped hooks 54; the motor 34 is controlled by the button switch 35 to make the composite insulator 40 and the metal suspension frame 50 rise to a proper height, and at the moment, the metal clip 73 is not lower than 1 meter away from the ground (the specific height is subject to the requirements of relevant regulations); the power frequency withstand voltage test can be performed by connecting the test voltage connection line 55 to the output of the test transformer. After the test is finished, the insulating rod 60 is lowered by manipulating the electric block 30, and then the insulating rod 60 is removed from the metal hanging frame 50 and the metal clip 73, the spring 72, the binding rope 71, and the like are removed from the insulating rod 60.
The utility model discloses simple structure, it is easy and simple to handle, safe distance to ground is adjustable, can carry out the experiment of different grade voltages, can be applicable to various types of insulating tool, can prevent effectively that connecting cable, anchor clamps are not hard up and can fix fast on being tested insulating tool, and can carry out batch test, and is efficient, has extensive application prospect.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a liftable insulating tool electrical withstand voltage test termination which characterized in that: the device comprises an electric hoist (30) and a composite insulator (40) driven by the electric hoist (30) to move up and down, wherein a metal suspension frame (50) used for suspending an insulating tool is arranged at the lower end of the composite insulator (40), and a test voltage connecting wire (55) is connected to the metal suspension frame (50); the insulation tool is characterized by further comprising a short circuit device (70), wherein the short circuit device (70) comprises a lead (74), an earth electrode (75) and a metal clamp (73) used for clamping the insulation tool, the earth electrode (75) is grounded, one end of the lead (74) is connected to the earth electrode (75), and the other end of the lead (74) is connected to the metal clamp (73).
2. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 1, wherein: electric block (30) including reel (37), hang arm (31), lifting rope (32), couple (33), motor (34), button switch (35) and pivot (36), motor (34) locate on reel (37) and through the shaft coupling with pivot (36) are connected with the drive pivot (36) rotate, pivot (36) are located in reel (37), the winding has on pivot (36) lifting rope (32), couple (33) are located on the free end of lifting rope (32), hang arm (31) and locate on reel (37), button switch (35) with motor (34) link to each other and are used for control motor (34).
3. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 2, wherein: the hanging device further comprises a fixed fulcrum (10) and a cross rod (20) fixedly arranged on the fixed fulcrum (10), and the hanging arm (31) is hung on the cross rod (20).
4. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 1, wherein: the composite insulator (40) comprises an upper end hanging ring (41), a lower end hanging ring (43) and an insulator body (42), wherein the upper end hanging ring (41) is located at the upper end of the insulator body (42), and the lower end hanging ring (43) is located at the lower end of the insulator body (42).
5. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 1, wherein: the metal suspension frame (50) comprises a metal rectangular frame (53) and U-shaped rings (51), the U-shaped rings (51) are located above the metal rectangular frame (53) and connected with four corners of the metal rectangular frame (53) through suspension ropes (52), metal S-shaped hooks (54) are suspended on four sides of the metal rectangular frame (53), and the test voltage connecting line (55) is connected to the metal rectangular frame (53).
6. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 5, wherein: the metal rectangular frame (53) is made of metal copper or stainless steel or aluminum alloy; the metal S-shaped hook (54) is made of metal copper or stainless steel or aluminum alloy.
7. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 5, wherein: the suspension rope (52) is a steel wire rope.
8. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 1, wherein: the metal clip (73) is provided with a spring (72), the free end of the spring (72) is provided with a binding rope (71), and the binding rope (71) is provided with a hook.
9. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 8, wherein: the lead (74) is a multi-strand soft copper wire or a copper braided belt; the binding rope (71) is a bare copper wire; the hook is a copper hook; the spring (72) is a metal spring.
10. The liftable electric withstand voltage test wiring device of an insulation tool according to claim 1, wherein: the composite insulator (40) is in a multi-section series connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821851782.XU CN209841999U (en) | 2018-11-12 | 2018-11-12 | Liftable insulating tool electrical voltage withstand test wiring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821851782.XU CN209841999U (en) | 2018-11-12 | 2018-11-12 | Liftable insulating tool electrical voltage withstand test wiring device |
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| Publication Number | Publication Date |
|---|---|
| CN209841999U true CN209841999U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821851782.XU Active CN209841999U (en) | 2018-11-12 | 2018-11-12 | Liftable insulating tool electrical voltage withstand test wiring device |
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| CN (1) | CN209841999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342898A (en) * | 2018-11-12 | 2019-02-15 | 广西电网有限责任公司电力科学研究院 | A wiring system for electrical withstand voltage test of insulating tools |
| CN112649705A (en) * | 2020-12-21 | 2021-04-13 | 中国电力科学研究院有限公司 | Automatic disc insulator replacing device for steep wave test |
-
2018
- 2018-11-12 CN CN201821851782.XU patent/CN209841999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342898A (en) * | 2018-11-12 | 2019-02-15 | 广西电网有限责任公司电力科学研究院 | A wiring system for electrical withstand voltage test of insulating tools |
| CN112649705A (en) * | 2020-12-21 | 2021-04-13 | 中国电力科学研究院有限公司 | Automatic disc insulator replacing device for steep wave test |
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