CN110632473A - High-frequency radiation insulation instrument detector - Google Patents
High-frequency radiation insulation instrument detector Download PDFInfo
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- CN110632473A CN110632473A CN201910988301.2A CN201910988301A CN110632473A CN 110632473 A CN110632473 A CN 110632473A CN 201910988301 A CN201910988301 A CN 201910988301A CN 110632473 A CN110632473 A CN 110632473A
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- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 230000005855 radiation Effects 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000012212 insulator Substances 0.000 abstract 3
- 238000013024 troubleshooting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 238000005299 abrasion Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a high-frequency radiation insulation tool detector, and relates to the field of instruments for detecting insulation equipment such as power lines. This insulating multiplexer utensil detector of high frequency radiation, this instrument can be suitable for the insulating quality inspection of insulator spindle stick and insulating rope simultaneously, and is light and handy convenient, is suitable for the scene, new principle high frequency radiation, new technology, contactless danger, can detect insulator spindle, insulating rope in the job site immediately, the material resources of using manpower sparingly, can detect insulator spindle, insulating rope temperature controller at any time and any place, improved test efficiency greatly, especially the characteristics that the preparation time is short when the needle burst trouble-shooting overhauls, detect at any time, take and use at any time.
Description
Technical Field
The invention particularly relates to the field of instruments for detecting insulating equipment such as power lines, and particularly relates to a high-frequency radiation insulating tool detector.
Background
Before operation, electric power workers need to perform insulation tests on tools such as an insulating rod and an insulating rope, and personal injury caused by poor insulation is prevented.
The existing high-frequency radiation insulation tool detector needs two to three persons to operate simultaneously, particularly wastes time and labor in a meter shaking process, the insulation performance needs to be tested in a segmented mode, time is wasted, two electrodes need to be taken up to align to all positions of insulation equipment in the measuring process, the measuring process is slow, error exists, accurate measurement cannot be conducted, potential safety hazards exist in the measuring process, and safety is poor.
Disclosure of Invention
The invention aims to provide a high-frequency radiation insulation tool detector aiming at the defects of the prior art so as to achieve the purposes of high sensitivity and better information acquisition degree. In order to achieve the purpose, the invention adopts the following technical scheme:
insulating multiplexer utensil detector of high frequency radiation, including the machine box, two sets of gyro wheels are installed to the bottom of machine box, and the preceding terminal surface of machine box installs the display screen, a side of machine box is inlayed and is had the demountable installation board, and demountable installation board is connected with the machine box through the installation screw, the top of machine box is provided with detection mechanism, and detection mechanism's inside including first electrode, first electrode mounting is in top one side of machine box, and the top opposite side of machine box inlays and have the second electrode, the top of machine box still is provided with the abrasionproof and decreases the mechanism, and the top front and back end of machine box is provided with stop gear, the bottom of machine box is provided with the installation supporting mechanism.
As a further description of the above technical solution:
the first electrode and the second electrode are the same in shape and are opposite to each other.
As a further description of the above technical solution:
the inside of abrasionproof decreases the mechanism is including the fixed plate, and the fixed plate is fixed respectively in the top both sides of machine box, the interior terminal surface of fixed plate all inlays and has the loose axle, and the one end that the loose axle is close to machine box central line is connected with the cylinder.
As a further description of the above technical solution:
the rotary structure is formed by the rotary drums and the fixed plate through the movable shafts, and the number of the rotary drums is three at the top of the machine box.
As a further description of the above technical solution:
the inside of stop gear is including the fly leaf, and the fly leaf is connected with the machine box through the inserted bar, interior pole is installed to the upper end of fly leaf, and the outer tube has been cup jointed to the outside of interior pole.
As a further description of the above technical solution:
the movable connection is arranged between the outer pipe and the inner rod, the inner rod is arranged around the top of the case respectively, the movable plate is connected with the case in a clamping mode through the inserted rod, and the outer pipe is arranged on the front end and the rear end of the top of the case.
As a further description of the above technical solution:
the mounting and supporting mechanism is characterized in that the mounting and supporting mechanism is internally provided with a supporting plate, the supporting plate and the machine box are fixedly welded, a fixing plate is mounted at the bottom of the supporting plate, and thread grooves are formed in two sides of the inside of the fixing plate.
As a further description of the above technical solution:
the thread groove and the fixing plate are connected integrally through injection molding, and the fixing plate is connected with the machine box through the supporting plate.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the instrument can be simultaneously suitable for the insulation quality inspection of the insulating rod and the insulating rope, is light and convenient, is suitable for the site, adopts a new principle, adopts high-frequency radiation, adopts a new technology, has no electric shock hazard, can detect the insulating rod, the insulating rod and the insulating rope in real time on the construction site, saves manpower and material resources, can detect the insulating rod, the insulating rod and the insulating rope only by a temperature controller at any time and any place, greatly improves the test efficiency, particularly has the characteristic of short preparation time during the needle burst fault maintenance, can detect at any time and take and use at any time, is designed to be portable, is easy to operate and has low cost, can detect the insulating rod, the insulating rod and the insulating rope at the same time, and improves the working efficiency.
2. In the invention, the first electrode and the second electrode are respectively arranged at two sides of the top of the machine box, so that the insulating rod, the insulating rope and the like can be moved from the first electrode to the second electrode by moving the machine box or pulling the insulating rod, the insulating rope and the like, the insulativity of the insulating rod, the insulating rope and the like can be continuously detected, the problems that two to three persons are required to operate simultaneously in the past detection, especially, time and labor are wasted in a meter shaking process, the insulation performance needs to be tested in a segmented mode, time is wasted, two electrodes need to be taken up to align to all positions of insulating equipment in the measurement process, the measurement process is slow, error exists, accurate measurement cannot be carried out, potential safety hazards exist in the measurement process, and the safety is poor can be effectively solved.
3. According to the invention, the roller can rotate along the movable shaft after being stressed, and when the insulating rod and the insulating rope move between the first electrode and the second electrode, the insulating rod and the insulating rope are in contact with the roller and drive the roller to rotate, so that the insulating rod and the insulating rope can be prevented from sliding on the machine box to generate abrasion, and the insulating rod and the insulating rope can move more smoothly.
4. According to the invention, the four outer pipes can limit the moving insulating rods and the moving insulating ropes, so that the insulating detection result is prevented from being influenced by the back-and-forth swinging of the insulating rods and the moving insulating ropes, the outer pipes can rotate after being stressed, so that the friction force and the resistance when the insulating rods and the moving insulating ropes are in contact with each other can be reduced, the abrasion is prevented, the positions of the movable plates can be changed, and the distance between the two opposite outer pipes can be adjusted according to the thicknesses of the insulating rods and the moving insulating ropes.
5. In the invention, as the thread groove is arranged on the fixing plate, the supporting component and the detector can be installed, so that a high-altitude object can be detected, and the multifunctional and flexible properties of the detector are embodied.
Drawings
FIG. 1 is a front view of the case of the present invention;
FIG. 2 is a right side view of the structure of the housing of the present invention;
fig. 3 is a schematic diagram of the electrical principle structure of the present invention.
Illustration of the drawings:
1. a case; 2. a roller; 3. a display screen; 4. a detachable mounting plate; 5. mounting screws; 6. a detection mechanism; 601. a first electrode; 602. a second electrode; 7. an anti-wear mechanism; 701. a fixing plate; 702. a movable shaft; 703. a drum; 8. a limiting mechanism; 801. a movable plate; 802. inserting a rod; 803. an inner rod; 804. an outer tube; 9. mounting a supporting mechanism; 901. a support plate; 902. a fixing plate; 903. a thread groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment one, referring to fig. 1-2, a high-frequency radiation insulation tool detector includes an organic box 1, rollers 2, a display screen 3, a detachable mounting plate 4, a mounting screw 5, a detection mechanism 6, a first electrode 601, a second electrode 602, an anti-abrasion mechanism 7, a fixing plate 701, a movable shaft 702, a roller 703, a limiting mechanism 8, a movable plate 801, an insertion rod 802, an inner rod 803, an outer tube 804, a mounting and supporting mechanism 9, a supporting plate 901, a fixing plate 902, and a threaded groove 903, wherein two sets of rollers 2 are mounted at the bottom of the organic box 1, the display screen 3 is mounted on the front end surface of the organic box 1, the detachable mounting plate 4 is embedded on one side surface of the organic box 1, the detachable mounting plate 4 is connected with the organic box 1 through the mounting screw 5, the detection mechanism 6 is disposed on the top of the organic box 1, the first electrode 601 is included in the detection mechanism 6, the first electrode 601 is mounted on, the second electrode 602 is embedded on the other side of the top of the case 1, the first electrode 601 and the second electrode 602 are in the same shape, the first electrode 601 and the second electrode 602 are opposite to each other, the first electrode 601 and the second electrode 602 are respectively arranged on the two sides of the top of the case 1, so that the insulating rod, the insulating rope and the like can be moved from the first electrode 601 and the second electrode 602 by moving the case 1 or pulling the insulating rod, the insulating rope and the like, the insulation of the insulating rod, the insulating rope and the like can be continuously detected, the problems that two or three persons are required to operate simultaneously in the past detection process, particularly, time and labor are wasted in the meter shaking process, the test needs to be carried out in sections when the insulation performance is measured, time is wasted, two electrodes need to be taken up to be aligned to all positions of the insulating equipment in the measuring process, the measuring process is slow and has error, accurate measurement cannot be carried out, and potential safety hazards exist in the measuring process can be effectively, the problem of poor safety;
the top of the machine box 1 is also provided with an anti-abrasion mechanism 7, the front end and the rear end of the top of the machine box 1 are provided with limiting mechanisms 8, the anti-abrasion mechanism 7 comprises a fixed plate 701, the fixed plates 701 are respectively fixed on two sides of the top of the machine box 1, a movable shaft 702 is embedded in the inner end surface of the fixed plate 701, one end of the movable shaft 702 close to the central line of the machine box 1 is connected with a roller 703, the roller 703 and the fixed plate 701 form a rotating structure through the movable shaft 702, three rollers 703 are arranged on the top of the machine box 1, the roller 703 can rotate along the movable shaft 702 after being stressed, when an insulating rod and an insulating rope move between the first electrode 601 and the second electrode 602, the insulating rod and the insulating rope are in contact with the roller 703 and drive the roller 703 to rotate, so that the insulating rod and the insulating rope can be prevented from sliding on the machine box 1 to generate abrasion, and the insulating rod and the, the inside of the limiting mechanism 8 includes a movable plate 801, the movable plate 801 is connected with the casing 1 through an insertion rod 802, an inner rod 803 is installed at the upper end of the movable plate 801, an outer tube 804 is sleeved outside the inner rod 803, the outer tube 804 is movably connected with the inner rod 803, the inner rod 803 is respectively located around the top of the casing 1, the movable plate 801 is connected with the casing 1 through the insertion rod 802 in a clamping manner, the outer tubes 804 are respectively arranged on the front and rear sides of the top of the casing 1, the four outer tubes 804 can limit the moving insulation rods and insulation ropes, the insulation rods and insulation ropes are prevented from swinging back and forth to affect insulation detection results, the outer tubes 804 can rotate after being stressed, friction and resistance when the insulation rods and insulation ropes are in contact with the insulation rods and insulation ropes are reduced, abrasion is prevented, the movable plate 801 can change positions, the distance between two opposite outer tubes 804 can be adjusted according to the thicknesses of the insulation rods and the insulation ropes, the bottom of machine box 1 is provided with installation supporting mechanism 9, installation supporting mechanism 9's inside is including backup pad 901, and be welded fastening between backup pad 901 and the machine box 1, fixed plate 902 is installed to the bottom of backup pad 901, and threaded groove 903 has been seted up to the inside both sides of fixed plate 902, constitute the integration through moulding plastics between threaded groove 903 and the fixed plate 902 and be connected, and fixed plate 902 is connected with machine box 1 through backup pad 901, because be equipped with threaded groove 903 on the fixed plate 902, then can install supporting component and this detector, can detect the object of high altitude like this, embody the multifunctionality and the flexibility of this detector.
In the second embodiment, referring to fig. 3, the apparatus includes a main control circuit, a power amplifying circuit, a transmitting and receiving coil, a signal conditioning circuit and a rectifying circuit;
the main control circuit: the main control chip adopts MSP430 series single-chip microcomputer of Texas instruments, and Texas Instruments (TI) is a 16-bit ultra-low power consumption mixed signal processor with a simplified instruction set which is introduced to the market in 1996. The MSP430 series of single-chip computers can realize 40ns instruction cycle driven by 25MHz crystal. The data width of 16 bits, the instruction period of 40ns and a multifunctional hardware multiplier (capable of realizing multiplication and addition operation) are matched, and certain algorithms (such as FFT and the like) for digital signal processing can be realized.
A power amplification circuit: the power amplifier circuit adopts a D-class amplifier, and compared with a general amplifier circuit, the power amplifier circuit has the following characteristics that the D-class amplifier has very high energy use conversion rate, and has very small volume and very strong reliability. The battery utilization rate of the class D power amplifier can reach more than 90%, and the requirement of environmental protection is met. The class D power amplifier is very suitable for mass production of products. As long as the installation of the components is ensured, the products can have good consistency, and the production process does not need any debugging, thereby being safe and reliable.
Transmitting and receiving coil: in general, the larger the number of turns of the coil, the larger the inductance, and the smaller the excitation current, but the larger the induced current, so that the smaller the number of turns of the coil, the larger the number of turns of the coil, and the larger the number of turns of the coil, are used as the transmitter coil. The transmitting coil is made by winding enamelled wires with the diameter of 1.5mm on an iron core for 100 circles, and the receiving coil is made by winding enamelled wires with the diameter of 0.3mm on the iron core for 2000 circles, and the purpose of adding the iron core is to increase the transmitting and receiving efficiency.
The signal conditioning circuit: the signal conditioning circuit consists of an amplifying circuit, a shaping circuit, a filtering circuit and an attenuation circuit. The amplifying circuit amplifies the signal received by the receiving coil for one time, and aims to amplify a small signal to facilitate the subsequent signal processing.
A rectifier circuit: the shaping circuit further processes the signals sent by the amplifying circuit to eliminate the cross-over distortion and other conditions, and the filter circuit further processes the signals sent by the front end to filter out the unwanted clutter and only leave the needed waveforms. The attenuation circuit attenuates the signal sent from the front end, and sends the proper degree of voltage peak-to-peak attenuation to the main control chip for processing and analysis.
The working principle is as follows: when the device is used, the lithium battery pack in the machine box 1 provides power for the display screen 3, the first electrode 601, the second electrode 602 and the main data processor, the device is taken up, the insulating rod and the insulating rope to be detected are placed between the first electrode 601 and the second electrode 602, the device is moved, the insulating rod or the insulating rope moves between the first electrode 601 and the second electrode 602, when a place with poor insulation is formed, the device can give an alarm, in the moving process, the insulating rod and the insulating rope are in contact with the roller 703 and drive the roller 703 to rotate, the insulating rod and the insulating rope can be prevented from sliding on the machine box 1 to generate abrasion, the insulating rod and the insulating rope can move more smoothly, the outer pipes 804 are arranged on the front end and the rear end of the top of the machine box 1, the four outer pipes 804 can limit the moving insulating rod and the insulating rope, and the insulating rod and the insulating rope can be prevented from swinging back and forth to affect the insulation detection result, the outer tubes 804 can rotate after being stressed, so that friction and resistance when the insulating rods and the insulating ropes are in contact with the outer tubes can be reduced, abrasion is prevented, the movable plate 801 can change positions, and the distance between the two opposite outer tubes 804 can be adjusted according to the thicknesses of the insulating rods and the insulating ropes.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. High-frequency radiation insulation tool detector, including organic box (1), its characterized in that, two sets of gyro wheels (2) are installed to the bottom of organic box (1), and the preceding terminal surface of organic box (1) installs display screen (3), a side of organic box (1) is inlayed and is had demountable installation board (4), and demountable installation board (4) is connected with organic box (1) through mounting screw (5), the top of organic box (1) is provided with detection mechanism (6), and the inside of detection mechanism (6) is including first electrode (601), first electrode (601) are installed in top one side of organic box (1), and the top opposite side of organic box (1) is inlayed and is had second electrode (602), the top of organic box (1) still is provided with abrasionproof and decreases mechanism (7), and the top front and back end of organic box (1) is provided with stop gear (8), the bottom of the machine box (1) is provided with an installation supporting mechanism (9).
2. The high-frequency radiation insulation tool detector according to claim 1, wherein: the first electrode (601) and the second electrode (602) are the same in shape, and the first electrode (601) and the second electrode (602) are opposite to each other.
3. The high-frequency radiation insulation tool detector according to claim 1, wherein: the inside of abrasionproof decreases mechanism (7) is including fixed plate (701), and fixed plate (701) are fixed respectively in the top both sides of machine box (1), the inner end face of fixed plate (701) all inlays loose axle (702), and loose axle (702) are close to the one end of machine box (1) central line and are connected with cylinder (703).
4. The high-frequency radiation insulation tool detector according to claim 3, wherein: the rotary structure is formed by the rotary drums (703) and the fixed plate (701) through the movable shafts (702), and three rotary drums (703) are arranged at the top of the machine box (1).
5. The high-frequency radiation insulation tool detector according to claim 1, wherein: the inside of stop gear (8) is including fly leaf (801), and fly leaf (801) is connected with machine box (1) through inserted bar (802), interior pole (803) are installed to the upper end of fly leaf (801), and the outside of interior pole (803) has cup jointed outer tube (804).
6. The high-frequency radiation insulation tool detector according to claim 5, wherein: the outer pipe (804) and the inner rod (803) are movably connected, the inner rod (803) is located on the periphery of the top of the machine box (1) respectively, the movable plate (801) is connected with the machine box (1) in a clamping mode through the inserting rod (802), and the outer pipe (804) is arranged on the front end and the rear end of the top of the machine box (1).
7. The high-frequency radiation insulation tool detector according to claim 1, wherein: the mounting and supporting mechanism (9) comprises a supporting plate (901), the supporting plate (901) and the machine box (1) are fixedly welded, a fixing plate (902) is mounted at the bottom of the supporting plate (901), and thread grooves (903) are formed in two sides of the inside of the fixing plate (902).
8. The high frequency radiation insulation tool detector according to claim 7, wherein: the thread groove (903) and the fixing plate (902) are integrally connected through injection molding, and the fixing plate (902) is connected with the machine box (1) through a supporting plate (901).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988301.2A CN110632473A (en) | 2019-10-17 | 2019-10-17 | High-frequency radiation insulation instrument detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910988301.2A CN110632473A (en) | 2019-10-17 | 2019-10-17 | High-frequency radiation insulation instrument detector |
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| CN110632473A true CN110632473A (en) | 2019-12-31 |
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|---|---|---|---|---|
| CN201373906Y (en) * | 2008-12-30 | 2009-12-30 | 上海雷格仪器有限公司 | Portable insulation rod or cord experiment device |
| CN203674640U (en) * | 2014-01-26 | 2014-06-25 | 宁波甬城配电网建设有限公司 | Cable pay-off rack and cable laying device |
| CN204536482U (en) * | 2015-04-24 | 2015-08-05 | 国家电网公司 | The horizontal Withstand test device of insulating bar |
| CN105823911A (en) * | 2016-05-16 | 2016-08-03 | 贵州电网有限责任公司输电运行检修分公司 | Auxiliary support of insulator zero-value detection rod and operational method for same |
| CN207882387U (en) * | 2018-02-09 | 2018-09-18 | 内蒙古伊泰煤炭股份有限公司 | Test apparatus for overpressure resistance of insulator spindle |
| CN109375071A (en) * | 2018-11-01 | 2019-02-22 | 江苏泓麒智能科技有限公司 | A kind of Chinese watt insulation resistance test equipment |
| CN211318652U (en) * | 2019-10-17 | 2020-08-21 | 国网辽宁省电力有限公司抚顺供电公司 | High-frequency radiation insulation instrument detector |
-
2019
- 2019-10-17 CN CN201910988301.2A patent/CN110632473A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373906Y (en) * | 2008-12-30 | 2009-12-30 | 上海雷格仪器有限公司 | Portable insulation rod or cord experiment device |
| CN203674640U (en) * | 2014-01-26 | 2014-06-25 | 宁波甬城配电网建设有限公司 | Cable pay-off rack and cable laying device |
| CN204536482U (en) * | 2015-04-24 | 2015-08-05 | 国家电网公司 | The horizontal Withstand test device of insulating bar |
| CN105823911A (en) * | 2016-05-16 | 2016-08-03 | 贵州电网有限责任公司输电运行检修分公司 | Auxiliary support of insulator zero-value detection rod and operational method for same |
| CN207882387U (en) * | 2018-02-09 | 2018-09-18 | 内蒙古伊泰煤炭股份有限公司 | Test apparatus for overpressure resistance of insulator spindle |
| CN109375071A (en) * | 2018-11-01 | 2019-02-22 | 江苏泓麒智能科技有限公司 | A kind of Chinese watt insulation resistance test equipment |
| CN211318652U (en) * | 2019-10-17 | 2020-08-21 | 国网辽宁省电力有限公司抚顺供电公司 | High-frequency radiation insulation instrument detector |
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