CN220773107U - On-line monitoring device for insulation level of power transformation equipment - Google Patents
On-line monitoring device for insulation level of power transformation equipment Download PDFInfo
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- CN220773107U CN220773107U CN202322032421.XU CN202322032421U CN220773107U CN 220773107 U CN220773107 U CN 220773107U CN 202322032421 U CN202322032421 U CN 202322032421U CN 220773107 U CN220773107 U CN 220773107U
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- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 238000012806 monitoring device Methods 0.000 title claims abstract description 19
- 230000009466 transformation Effects 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000006698 induction Effects 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of insulation detection of power system equipment, in particular to an insulation level online monitoring device of power transformation equipment, which comprises a fixed pipe, a sleeve, a limiting pipe and an insulation detection unit, wherein the fixed pipe is in a C shape with a rightward opening, the outer side of the fixed pipe is sleeved with the C-shaped sleeve with the rightward opening, the inner side of the fixed pipe is provided with a clamping assembly capable of fixing cables, the clamping assembly comprises ejector rods and clamping parts, the inner side of the fixed pipe is uniformly provided with a plurality of radially arranged ejector rods along the circumferential direction at intervals.
Description
Technical Field
The utility model relates to the technical field of insulation detection of power system equipment, in particular to an on-line monitoring device for the insulation level of power transformation equipment.
Background
The faults of the power system and the electrical equipment are mostly caused by insulation damage, and the insulation condition of the power system and the electrical equipment is an important index related to the safe operation of a power grid because the working voltage of a cable in the power transformation equipment is more than tens KV and even up to 1000KV, but the insulation condition of the equipment cannot be directly detected when the equipment is operated because the operation voltage is very high.
The patent document with the bulletin number of CN214674065U discloses an on-line monitoring device for the insulation level of power transformation equipment, which comprises a fixed pipe, a clamping pipe sleeved on the fixed pipe and an insulation detection assembly, wherein a fixed pipe slot is formed in the side wall of the fixed pipe, the fixed pipe slot is formed along the length direction of the fixed pipe and penetrates through the two ends of the fixed pipe, the inner wall of the fixed pipe is provided with the clamping assembly, and the far end of the outer side wall, which is far from the fixed pipe slot, is provided with a fastening mechanism assembly; a clamping tube slot is formed in the side wall of the clamping tube; the clamping tube slotting is arranged along the length direction of the clamping tube and penetrates through the two ends of the clamping tube.
Although the above-mentioned online monitoring device for the insulation level of the power transformation equipment can detect the insulation condition of the cable when the equipment operates, in the practical environment, the cable has wire diameters of different sizes, when the cable wire diameter is larger, the cable cannot be arranged between the clamping assemblies, when the cable wire diameter is smaller, the clamping assemblies cannot fix the cable, the cable is required to be kept in the middle of the fixed pipe through external equipment, and the online monitoring device for the insulation level of the power transformation equipment is very inconvenient to use.
Disclosure of Invention
The utility model provides an on-line monitoring device for the insulation level of power transformation equipment, which overcomes the defects of the prior art and can effectively solve the problem that the existing on-line monitoring device for the insulation level of the power transformation equipment cannot be suitable for cables with different wire diameters.
The technical scheme of the utility model is realized by the following measures: the utility model provides an insulating level on-line monitoring device of substation equipment, including fixed pipe, the sleeve pipe, spacing pipe and insulating detection unit, fixed pipe is the C shape that the opening was rightward, fixed pipe outside cover is equipped with the C shape sleeve pipe that the opening was rightward, the clamping component that can fix the cable is installed to the fixed pipe inboard, the clamping component includes ejector pin and clamping part, fixed pipe inboard has the ejector pin of a plurality of radial setting along circumference interval equipartition, the first end of every ejector pin is by interior fixed pipe and the sleeve pipe outside of passing in proper order outward, the second end of every ejector pin all is fixed with the clamping part, the sleeve pipe outside is equipped with the spacing pipe that can make ejector pin radial movement, install the insulating detection unit that is used for detecting cable insulating level on the fixed pipe.
The following are further optimizations and/or improvements to the above-described inventive solution:
the limiting pipe can comprise a rotating part and a limiting part, wherein the rotating part is in a C shape with an opening left, threads are arranged on the outer side surface of the sleeve, the rotating part is in threaded connection with the outer side of the sleeve, the front end of the rotating part is fixedly provided with the C-shaped limiting part with the opening left, and the front end face of the limiting part is inclined from outside to inside from front to back.
The clamping part can comprise a fixing box, an arc clamping plate and a clamping rod, wherein the U-shaped fixing box with an outward opening is fixedly arranged on the inner side surface of the fixing pipe, the fixing box is provided with a through hole corresponding to the ejector rod, the clamping rod with a first end fixedly arranged together with the second end of the ejector rod at the corresponding position is arranged in the through hole in a penetrating manner, and the arc clamping plate with an inward opening is fixedly arranged at the second end of the clamping rod.
The fixed box is internally provided with a sliding block which is fixedly arranged together with the first end of the clamping rod in a sliding way, and a spring sleeved in the fixed box is arranged between the sliding block and the second end of the ejector rod.
The insulation detection unit can comprise an induction wire, a current detector, a central processing module and a communication module, wherein a spiral placement groove is formed in the outer side of the fixed pipe, the induction wire is arranged in the placement groove, two ends of the induction wire are respectively connected with two ends of the current detector, the current detector is connected with the central processing module, and the central processing module is connected with the communication module.
The utility model has reasonable and compact structure and convenient use, when the limiting pipe is in threaded connection with the sleeve, the first end of each ejector rod can be extruded, so that the ejector rods radially move, and the clamping part corresponding to each ejector rod is driven to displace towards the center direction of the fixed pipe and extrude the fixed cable, so that the clamping assembly can firmly fix cables with different wire diameters, and the utility model has the characteristics of safety, labor saving, simplicity and convenience and high efficiency.
Drawings
Fig. 1 is a schematic diagram of a front sectional structure of a first embodiment.
Fig. 2 is a schematic view of a partially cut-away enlarged structure in a right-side view of the first embodiment.
Fig. 3 is an enlarged partial sectional view of the first embodiment.
Fig. 4 is a circuit block diagram of the first embodiment.
The codes in the drawings are respectively: 1 is a fixed pipe, 2 is a sleeve, 3 is a mounting groove, 4 is a push rod, 5 is a limiting part, 6 is a rotating part, 7 is a fixed box, 8 is a sliding block, 9 is an arc-shaped clamping plate, 10 is a clamping rod, 11 is a spring, 12 is a through hole, 13 is an induction line, and A is a current detector.
Detailed Description
The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The utility model is further described below with reference to examples and figures:
according to the embodiment I, as shown in the accompanying drawings 1, 2, 3 and 4, the on-line monitoring device for the insulation level of the transformer equipment comprises a fixed pipe 1, a sleeve pipe 2, a limiting pipe and an insulation detection unit, wherein the fixed pipe 1 is in a C shape with an opening rightward, the C-shaped sleeve pipe 2 with the opening rightward is sleeved outside the fixed pipe 1, a clamping assembly capable of fixing a cable is arranged on the inner side of the fixed pipe 1, the clamping assembly comprises ejector rods 4 and clamping parts, a plurality of radially arranged ejector rods 4 are uniformly distributed on the inner side of the fixed pipe 1 at intervals along the circumferential direction, the first end of each ejector rod 4 sequentially penetrates through the outer sides of the fixed pipe 1 and the sleeve pipe 2 from inside to outside, the second end of each ejector rod 4 is fixedly provided with the clamping part, the limiting pipe capable of enabling the ejector rods 4 to radially move is arranged on the outer side of the sleeve pipe 2, and the insulation detection unit for detecting the insulation level of the cable is arranged on the fixed pipe 1.
When the cable is used, the cable sequentially passes through the sleeve 2 and the opening of the fixed pipe 1 and is placed on the inner side of the clamping assembly, the limiting pipe is installed on the outer side of the sleeve 2, each ejector rod 4 is radially moved by the limiting pipe in the installation process, the clamping part corresponding to each ejector rod 4 is driven to displace towards the center direction of the fixed pipe 1 and extrude the fixed cable, the clamping assembly can fix cables with different wire diameters, the insulation detection unit can detect the induction current of the cable, the induction current is compared with the rated current stored in advance, and the insulation detection level of the cable is judged according to the comparison result.
The on-line monitoring device for the insulation level of the power transformation equipment can be further optimized or/and improved according to actual needs:
in the second embodiment, as shown in fig. 1 and 2, the limiting tube is further optimized in the above embodiment, and the limiting tube includes a rotating portion 6 and a limiting portion 5, the rotating portion 6 is C-shaped with a left opening, threads are provided on the outer surface of the sleeve 2, the rotating portion 6 is screwed on the outer side of the sleeve 2, the front end of the rotating portion 6 is fixedly provided with the C-shaped limiting portion 5 with a left opening, and the front end surface of the limiting portion 5 is inclined from outside to inside from front to back. In the process of the spiro union, the first end of every ejector pin 4 can be extruded to spacing portion 5 for every ejector pin 4 radially moves, and when the spiro union was accomplished, the opening of spacing pipe was located the left side, and the opening of sleeve pipe 2 is located the right side, makes spacing pipe and sleeve pipe 2 form a confined ring jointly, prevents that the cable from dropping outside to the insulating level on-line monitoring device of substation equipment.
In the third embodiment, as shown in fig. 1 and 3, the clamping portion includes a fixing box 7, an arc clamping plate 9 and a clamping rod 10, the inner side surface of the fixing tube 1 is fixedly provided with a U-shaped fixing box 7 with an outward opening, the fixing box 7 is provided with a through hole 12 corresponding to the ejector rod 4, the through hole 12 is internally provided with a clamping rod 10 with a first end fixedly installed with a second end of the ejector rod 4 at a corresponding position, and the second end of the clamping rod 10 is fixedly provided with the arc clamping plate 9 with an inward opening. When ejector rod 4 radially moves, can drive corresponding clamping lever 10 and arc grip block 9 to fixed pipe 1 centre of a circle direction displacement and extrusion fixed cable, set up arc grip block 9, can increase the area of contact between clamping part and the cable, conveniently fix the cable, wear clamping lever 10 to locate through-hole 12, prevent that clamping lever 10 from shifting.
In the fourth embodiment, as shown in fig. 1 and 3, this embodiment is further optimized in the foregoing embodiment, a sliding block 8 is slidably mounted in the fixed box 7 and fixedly mounted with a first end of a clamping rod 10, and a spring 11 sleeved in the fixed box 7 is mounted between the sliding block 8 and a second end of the ejector rod 4. When the cable is placed in the clamping assembly inboard, the cable is because of self volume is big makes arc grip block 9 remove to fixed pipe 1 outside direction, and arc grip block 9 drives clamping lever 10 and slider 8 and removes and compress spring 11, and spring 11 produces the elasticity to fixed pipe 1 centre of a circle direction after being compressed for arc grip block 9 receives the elasticity influence to the cable of fixed pipe 1 centre of a circle direction extrusion, through foretell setting, makes arc grip block 9 can more firm clamp the cable of different wire footprints.
In the fifth embodiment, as shown in fig. 4, the insulation detection unit is further optimized in the above embodiment, and includes an induction wire 13, a current detector a, a central processing module and a communication module, a spiral installation groove 3 is disposed on the outer side of the fixed tube 1, the induction wire 13 is disposed in the installation groove 3, two ends of the induction wire 13 are respectively connected with two ends of the current detector a, the current detector a is connected with the central processing module, and the central processing module is connected with the communication module.
The current detector A is a prior known technology, and can be an ammeter with the model of PZL-AI, the central processing module is a prior known technology, and can be a singlechip with the chip model of STMF, the induction wire 13 is arranged in the mounting groove 3 to form a coil, two ends of the induction wire 13 respectively extend to the outer side of the fixed pipe 1 and are connected with two ends of the current detector A to form a closed induction current detection loop, the current detector A transmits the detected induction current value to the central processing module, the central processing module compares the induction current value with the internally stored rated value, when the induction current value is larger than the rated value, the insulation level of the cable is abnormal, the central processing module sends an alarm to the outside through the communication module, when the induction current value is smaller than or equal to the rated value, the induction current insulation level is normal, the central processing module continuously compares the internally stored rated value with the induction current value, and the rated value is the induction current value detected by the current detector A under the normal working state, the mounting groove 3 is arranged, and the displacement or falling of the induction wire 13 is prevented.
The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (6)
1. The utility model provides an insulating level on-line monitoring device of substation equipment, a serial communication port includes fixed pipe, the sleeve pipe, spacing pipe and insulating detection unit, fixed pipe is the C shape that the opening was rightward, fixed pipe outside cover is equipped with the C shape sleeve pipe that the opening was rightward, the clamping component that can fix the cable is installed to the fixed pipe inboard, the clamping component includes ejector pin and clamping part, fixed pipe inboard has the ejector pin of a plurality of radial setting along circumference interval equipartition, the first end of every ejector pin is by interior fixed pipe and the sleeve pipe outside of passing in proper order outward, the second end of every ejector pin all is fixed with the clamping part, the sleeve pipe outside is equipped with the spacing pipe that can make ejector pin radial movement, install the insulating detection unit that is used for detecting cable insulation level on the fixed pipe.
2. The on-line monitoring device for the insulation level of the transformer equipment according to claim 1, wherein the limiting pipe comprises a rotating part and a limiting part, the rotating part is in a C shape with an opening left, threads are arranged on the outer side surface of the sleeve, the rotating part is in threaded connection with the outer side of the sleeve, the front end of the rotating part is fixedly provided with the C-shaped limiting part with the opening left, and the front end face of the limiting part is inclined from outside to inside from front to back.
3. The on-line monitoring device for the insulation level of the transformer equipment according to claim 1 or 2, wherein the clamping part comprises a fixing box, an arc clamping plate and a clamping rod, the U-shaped fixing box with an outward opening is fixedly arranged on the inner side surface of the fixing pipe, the fixing box is provided with a through hole corresponding to the ejector rod, the clamping rod with a first end fixedly arranged with a second end of the ejector rod at a corresponding position is arranged in the through hole in a penetrating manner, and the arc clamping plate with an inward opening is fixedly arranged at the second end of the clamping rod.
4. The on-line monitoring device for the insulation level of the power transformation equipment according to claim 3, wherein the fixed box is slidably provided with a sliding block fixedly arranged with the first end of the clamping rod, and a spring sleeved in the fixed box is arranged between the sliding block and the second end of the ejector rod.
5. The on-line monitoring device for the insulation level of the power transformation equipment according to claim 1, 2 or 4, wherein the insulation detection unit comprises an induction wire, a current detector, a central processing module and a communication module, a spiral installation groove is arranged on the outer side of the fixed pipe, the induction wire is arranged in the installation groove, two ends of the induction wire are respectively connected with two ends of the current detector, the current detector is connected with the central processing module, and the central processing module is connected with the communication module.
6. The on-line monitoring device for the insulation level of the transformer equipment according to claim 3, wherein the insulation detection unit comprises an induction wire, a current detector, a central processing module and a communication module, a spiral installation groove is formed in the outer side of the fixed pipe, the induction wire is arranged in the installation groove, two ends of the induction wire are respectively connected with two ends of the current detector, the current detector is connected with the central processing module, and the central processing module is connected with the communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032421.XU CN220773107U (en) | 2023-07-31 | 2023-07-31 | On-line monitoring device for insulation level of power transformation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032421.XU CN220773107U (en) | 2023-07-31 | 2023-07-31 | On-line monitoring device for insulation level of power transformation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220773107U true CN220773107U (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322032421.XU Active CN220773107U (en) | 2023-07-31 | 2023-07-31 | On-line monitoring device for insulation level of power transformation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220773107U (en) |
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2023
- 2023-07-31 CN CN202322032421.XU patent/CN220773107U/en active Active
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