CN109244947B - Insulator mounting platform - Google Patents

Insulator mounting platform Download PDF

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Publication number
CN109244947B
CN109244947B CN201810902861.7A CN201810902861A CN109244947B CN 109244947 B CN109244947 B CN 109244947B CN 201810902861 A CN201810902861 A CN 201810902861A CN 109244947 B CN109244947 B CN 109244947B
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China
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insulator
tested
annular support
annular
fixing mechanism
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CN201810902861.7A
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CN109244947A (en
Inventor
张锐
袁田
武文华
袁金灿
刘翔
王昱晴
张虎
代静
汪英英
唐芳
张秋芬
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H02G1/04Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching

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Abstract

The invention provides an insulator mounting platform, which comprises: the device comprises a fixing mechanism, an isolation protection mechanism and an annular bracket; the annular bracket is provided with a plurality of rigid feet for connecting the insulator to be tested so as to hang the insulator to be tested on the annular bracket; the annular bracket is fixed to a preset position through a fixing mechanism; the isolation protection mechanism is arranged between the fixing mechanism and the annular support and used for isolating the insulator to be tested from equipment connected with the fixing mechanism. The insulator to be tested is hung on the annular bracket through the rigid feet, and the hanging state of the insulator to be tested is simulated; the annular support is fixed to a preset position through a fixing mechanism, so that the detection level and the detection precision of related products in the insulator industry are improved; meanwhile, the fixing mechanism and the annular support are provided with isolation protection mechanisms, the insulator to be tested is isolated from equipment, damage to the equipment caused by corona of the insulator to be tested and isolation high-voltage flash is avoided, and safety performance of the insulator to be tested in the suspension and simulation test process is improved.

Description

Insulator mounting platform
Technical Field
The invention relates to the technical field of insulator installation, in particular to an insulator installation platform.
Background
Since the birth of the power system, the problem of external insulation of the power transmission and transformation equipment threatens the safe and stable operation of the power system. In recent years, with the annual deterioration of atmospheric environment and the continuous improvement of the operating voltage of an overhead line in China, the probability and loss of insulator pollution flashover accidents are increased year by year. Composite insulators are widely used and have excellent antifouling performance, but in years or decades, the insulators are gradually aged through ultraviolet irradiation, circulation of temperature and humidity, surface discharge caused by pollution and the like, and the antifouling performance of the insulators is also reduced, so that the anti-aging performance of the insulators is very attractive to users.
Investigation has shown that aging is the primary cause of failure of composite insulators, while non-aging causes such as mechanical and electrical account for only 36% of failures. Operating for months in the polluted area, the aging process is along with natural pollution, and the accumulation effect begins to be generated. The voltage is not uniform due to moisture caused by fog or dew, resulting in creeping discharge. Observation of the power transmission line by the image intensifier at night shows that creeping discharge occurs in each line actually under humid conditions. Over a long period of operation, ultraviolet rays and creeping discharge, etc., cause deterioration. The initial deterioration was accompanied by surface discoloration, development of powdery texture and cracks. These changes increase the roughness of the surface, resulting in an increased rate of fouling build-up. Subsequent corona and surface discharge may cause corrosion, shed cracking, or puncture. Operational experience shows that even a severely corroded silicone rubber insulator will not flash over under normal operating conditions, but further corrosion or small arcing will allow moisture penetration or expose the fiberglass core rod to air, resulting in loss of the core rod to shed interface. Therefore, after the composite insulator runs for a long time, the composite insulator is aged to a certain degree, the service life of the composite insulator cannot be guaranteed, and therefore the composite insulator can be subjected to aging test before being used.
The insulator can only be placed in test equipment in the current test process, the suspension state of the insulator cannot be simulated, electric leakage can be caused, and potential safety hazards are brought to testers.
Disclosure of Invention
In view of this, the invention provides an insulator mounting platform, and aims to solve the problem that the existing insulator mounting cannot simulate the suspension state of an insulator and causes electric leakage.
The invention provides an insulator mounting platform, which comprises: the device comprises a fixing mechanism, an isolation protection mechanism and an annular bracket; the annular support is provided with a plurality of rigid feet for connecting an insulator to be tested so as to suspend the insulator to be tested on the annular support; the annular bracket is fixed to a preset position through the fixing mechanism; the isolation protection mechanism is arranged between the fixing mechanism and the annular support and used for isolating the insulator to be tested from equipment connected with the fixing mechanism.
Furthermore, in the insulator mounting platform, the annular support is provided with a plurality of suspension parts along the circumferential direction of the annular support, and the annular support is provided with a groove along the radial direction of the annular support; one end of the rigid pin is clamped in the groove and is connected with the groove in a sliding mode, and the other end of the rigid pin is used for fixing the insulator to be tested.
Furthermore, in the insulator mounting platform, the suspension member is provided with a positioning member in the groove, and the positioning member is used for positioning the rigid leg to ensure the levelness of the annular bracket.
Further, according to the insulator mounting platform, the groove is a closed groove body.
Further, above-mentioned insulator mounting platform, fixed establishment includes: a plurality of connecting rods; wherein, the connecting rod is evenly arranged along the circumference of the annular bracket.
Further, in the insulator mounting platform, the connecting rods and the rigid legs are arranged in a one-to-one correspondence manner, and the corresponding connecting rods and the rigid legs are arranged at the same connecting position of the annular bracket.
Further, above-mentioned insulator mounting platform, the tip of connecting rod is equipped with the internal thread to fix to predetermineeing the position through the double-end screw.
Further, above-mentioned insulator mounting platform, isolation protection mechanism through the double-end lead screw with ring carrier detachably is connected.
Further, in the insulator mounting platform, the annular support is a support formed by bending a stainless steel plate.
Further, in the insulator mounting platform, the isolation protection mechanism is an isolation insulator.
According to the insulator mounting platform provided by the invention, the insulator to be tested is hung on the annular bracket through the rigid feet respectively so as to simulate the hanging state of the insulator to be tested; the annular support is fixed to a preset position through a fixing mechanism so that the insulator to be tested can be hung to the preset position in the testing equipment, and then the insulator to be tested can be tested through spraying and the like, and the detection level and precision of related products in the insulator industry can be improved; meanwhile, the fixing mechanism and the annular support are provided with an isolation protection mechanism for isolating the insulator to be tested from equipment connected with the fixing mechanism, so that the insulator to be tested is prevented from generating corona or surface discharge, and meanwhile, the high-voltage isolation flashover is prevented from damaging the equipment, namely, the potential safety hazard caused by electric leakage or the damage of test equipment is avoided, and the safety performance of the insulator to be tested in the suspension and simulation test process is improved.
Particularly, according to the insulator mounting platform provided by the invention, the annular support is provided with the plurality of hanging parts along the circumferential direction, the hanging parts are provided with the grooves along the radial direction of the annular support, the rigid legs are clamped in the grooves and can slide along the grooves, namely the annular support can slide along the radial direction, and the positions of the hanging parts and the insulator to be measured are adjusted according to the sizes of the hanging parts and the insulator to be measured.
Furthermore, the suspension part is provided with a positioning part in the groove, and the rigid leg is positioned to ensure the levelness of the annular bracket, so that the inclination and the like of the test process of the insulator to be tested are avoided, namely, the suspension state of the insulator to be tested is accurately simulated, and the test accuracy is ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of an insulator mounting platform according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, a schematic structural diagram of an insulator mounting platform according to an embodiment of the present invention is shown. As shown in fig. 1, the insulator mounting platform includes: the device comprises a fixing mechanism 1, an isolation protection mechanism 2, an annular bracket 3, a rigid foot 4 and a suspension part 5; wherein, a plurality of rigid feet 4 are arranged on the annular bracket 3 along the circumferential direction thereof for connecting the insulator to be tested, so as to hang the insulator to be tested (not shown in fig. 1) on the annular bracket 3. Preferably, the rigid legs 4 are uniformly arranged along the circumferential direction of the ring-shaped support 3, so as to ensure that the insulators to be tested are uniformly arranged along the circumferential direction of the ring-shaped support 3, and further ensure that the levelness of the ring-shaped support 3 is ensured, that is, the ring-shaped support 3 is horizontally arranged, so that the inclination and the like of the test process of the insulators to be tested are avoided, that is, the suspension state of the insulators to be tested is accurately simulated, and the test accuracy is ensured. In particular, the toroidal support 3 is provided with several suspension elements 5 along its circumference, preferably suspension elements 5 are welded to the side walls of the toroidal support 3. The suspension member 5 is provided with a groove 51 along the radial direction of the annular bracket 3. One end (top end shown in figure 1) of the rigid leg 4 is provided with a support rod which is clamped in the groove 51 and can slide along the groove 51, the other end (bottom end shown in figure 1) is provided with an insulator connecting piece for connecting and suspending an insulator to be tested, and an iron cap of the insulator to be tested, namely a low-voltage end thereof, is suspended on the insulator connecting piece; preferably, the groove 51 is a closed groove body to avoid dropping of the rigid leg 4. The suspension parts 5, the rigid feet 4 and the insulators to be tested are arranged in a one-to-one correspondence manner, preferably, the sizes of the insulator connecting pieces of the rigid feet 4 arranged on each suspension part 5 are different, so that the insulators to be tested with different sizes can be connected and suspended; the rigid foot 4 can slide along the length direction of the groove 51, namely the radial direction of the annular bracket 3, so that the positions of the hanging piece 5 and the insulator to be detected are adjusted according to the sizes of the hanging piece 5 and the insulator to be detected; preferably, the suspension member 5 is provided with a positioning member (not shown in fig. 1) in the groove 51 for positioning the rigid leg 4 to ensure the levelness of the annular bracket 3, and the positioning member can lock the suspension member 5 and the rigid leg 4 after the rigid leg 4 slides to a corresponding position to avoid the movement of the rigid leg 4, so as to ensure that the center of gravity of the insulator mounting platform on which the insulator to be tested is suspended is located on the central axis of the annular bracket 3, that is, ensure the levelness of the annular bracket 3, that is, ensure the horizontal arrangement of the annular bracket 3, thereby avoiding the inclination and the like of the insulator to be tested in the testing process, that is, accurately simulating the suspension state of the insulator to be tested, and ensuring the accuracy of the test; preferably, the locating member is provided at the end of the recess 51 remote from the annular support 3. In the present embodiment, in order to prevent the ring frame 3 from being corroded or damaged in the simulation test, it is preferable that the ring frame 3 is a bent frame of stainless steel plate in order to ensure the strength and corrosion resistance of the ring frame 3. Wherein, the rigid foot 4 can be replaced according to different types of insulators and materials to be tested. In this embodiment, the number of the suspension members 5 and the number of the rigid legs 4 provided on the ring-shaped bracket 3 are 8, but may be 1 or other numbers; in order to improve the efficiency of testing the insulator to be tested, it is preferable that at least two suspension members 5 and at least two rigid legs 4 are arranged on the ring-shaped support 3 and are uniformly distributed along the circumferential direction of the ring-shaped support 3.
Continuing to refer to fig. 1, the ring support 3 is fixed to a preset position through the fixing mechanism 1 so as to suspend the insulator to be tested to the preset position in the testing equipment, and then the insulator to be tested is tested by spraying and the like. Preferably, the fixing mechanism 1 can be fixed on a roof or mounted on the top of the testing equipment through a double-headed screw, and the annular bracket 3 is hung in the air or in the box body of the testing equipment by the fixing mechanism 1 so as to simulate the suspension state of the insulator to be tested and test the insulator.
Continuing to refer to fig. 1, isolation protection mechanism 2 is disposed between fixing mechanism 1 and annular support 3, and is used to isolate the device connected to fixing mechanism 1 from the insulator to be tested, so as to prevent corona or surface discharge from occurring on the insulator to be tested, and to isolate the device from being damaged by high-voltage flashover, i.e. to avoid potential safety hazard caused by electric leakage or damage to the testing device, so as to improve the safety performance of the insulator to be tested in the suspension and simulation testing processes. Preferably, the insulation protection means 2 is detachably connected to the ring support 3 by means of a double-headed screw 6 in order to facilitate the mounting between the insulation protection means 2 and the ring support 3, i.e. the ring support 3 is detachably mounted by means of the double-headed screw 6. Wherein the top end (relative to the position shown in fig. 1) of the double-ended screw 6 is connected with the isolation protection mechanism 2, and the bottom end (relative to the position shown in fig. 1) of the double-ended screw 6 is detachably connected with the annular bracket 3; further preferably, the top end of the double-end screw rod 6 is detachably connected with the isolation protection mechanism 2 so as to facilitate the assembly and disassembly between the two. Wherein, keep apart protection mechanism 2 and be isolation insulator, its top is connected with fixed establishment 1, and the bottom is connected with 6 detachably of double-end lead screw.
With continued reference to fig. 1, the securing mechanism 1 comprises: a plurality of connecting rods 11; wherein, the connecting rod 11 sets up in the top of ring carrier 3 and evenly sets up along ring carrier 3's circumference for hang the insulator that awaits measuring that hangs on the ring carrier 3 to the default position in the test equipment. Specifically, one end (lower end as shown in fig. 1) of the connecting rod 11 is connected to the ring bracket 3, and the other end (upper end as shown in fig. 1) of the connecting rod 11 is connected to a predetermined position. The preset position can be determined according to the equipment for the simulation test of the insulator to be tested or the suspension position of the equipment. Preferably, the end (upper end as shown in fig. 1) of the connecting rod is provided with an internal thread to be fixed to a preset position by a double-headed screw, so that the insulator mounting platform can be conveniently disassembled and assembled; each connecting rod 11 is fixed to the ring support 3 by an isolation protection mechanism 2 and a double-ended screw 6. To ensure the stability of the toroidal support 3, preferably, the number of connecting rods 11 is at least two; in the present embodiment, 6 connecting rods 11 are taken as an example, but of course, other numbers may be used according to actual confirmation.
With continued reference to fig. 1, the connecting rods 11 and the rigid legs 4 are arranged in a one-to-one correspondence, and the corresponding connecting rods 11 and the rigid legs 4 are arranged at the same connecting position of the annular bracket 3; wherein the connecting rod 11 is fixed on the top wall of the ring-shaped bracket 3 through the isolation protection mechanism 2 and the double-head screw rod 6, and the corresponding rigid leg 4 is fixed on the side wall of the ring-shaped bracket 3 through the suspension piece 5.
The working process of the measuring device provided in this embodiment is explained in detail as follows:
firstly, fixing an isolation protection mechanism 2 on an annular bracket 3 through a double-end screw rod 6, connecting the top end of the isolation protection mechanism 2 to the bottom end of a connecting rod 11, and combining to form an insulator mounting platform; then, the mounting platform is fixedly connected to a predetermined position via a connecting rod 11; finally, a plurality of insulators to be tested are fixed on the suspension parts 5 through the rigid feet 4 respectively so as to complete the suspension installation of the insulators to be tested.
In summary, the insulator mounting platform provided in this embodiment suspends a plurality of insulators to be tested to the annular bracket 3 through the rigid legs 4, so as to simulate the suspension state of the insulators to be tested; the annular support 3 is fixed to a preset position through the fixing mechanism 1 so as to suspend the insulator to be tested to the preset position in the testing equipment, and then the insulator to be tested is tested through spraying and the like, so that the detection level and the detection precision of related products in the insulator industry are improved; meanwhile, the fixing mechanism 1 and the annular support 3 are provided with an isolation protection mechanism 2 for isolating the insulator to be tested from the equipment connected with the fixing mechanism 1, further avoiding corona or surface discharge of the insulator to be tested, and simultaneously isolating high-voltage flash to damage the equipment, namely avoiding potential safety hazards caused by electric leakage or damage of test equipment, so as to improve the safety performance of the insulator to be tested in the suspension and simulation test processes. In addition, the mounting platform is convenient to use, ingenious in design and compact in structure.
In particular, according to the insulator mounting platform provided by this embodiment, the annular bracket 3 is provided with a plurality of suspension members 5 along the circumferential direction thereof, the suspension members 5 are provided with the grooves 51 along the radial direction of the annular bracket 3, the rigid legs 4 are clamped in the grooves 51 and can slide along the grooves 51, that is, the annular bracket 3 can slide along the radial direction, and then the positions of the suspension members 5 and the insulator to be tested are adjusted according to the sizes of the suspension members 5 and the insulator to be tested.
Furthermore, the suspension member 5 is provided with a positioning member in the groove 51 to position the rigid leg 4 to ensure the levelness of the annular bracket 3, so as to avoid the inclination of the test process of the insulator to be tested, namely accurately simulate the suspension state of the insulator to be tested, and ensure the accuracy of the test.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. An insulator mounting platform, comprising: the device comprises a fixing mechanism (1), an isolation protection mechanism (2) and an annular bracket (3); wherein the content of the first and second substances,
the annular support (3) is provided with a plurality of rigid feet (4) for connecting an insulator to be tested so as to hang the insulator to be tested on the annular support (3);
the annular support (3) is fixed to a preset position through the fixing mechanism (1);
the isolation protection mechanism (2) is arranged between the fixing mechanism (1) and the annular bracket (3) and is used for isolating the insulator to be tested from equipment connected with the fixing mechanism (1);
a plurality of hanging pieces (5) are arranged on the annular support (3) along the circumferential direction of the annular support, and grooves (51) are formed in the annular support (3) along the radial direction of the annular support;
one end of the rigid pin (4) is clamped in the groove (51) and is connected with the groove (51) in a sliding manner, and the other end of the rigid pin is used for fixing the insulator to be tested;
a positioning piece is arranged in the groove (51) of the suspension piece (5) and used for positioning the rigid leg (4) to ensure the levelness of the annular bracket (3);
the fixing mechanism (1) comprises: a plurality of connecting rods (11); the connecting rods (11) are arranged above the annular support (3) and are uniformly arranged along the circumferential direction of the annular support (3); the connecting rods (11) and the rigid legs (4) are arranged in a one-to-one correspondence manner, and the corresponding connecting rods (11) and the rigid legs (4) are arranged at the same connecting position of the annular bracket (3); the end of the connecting rod (11) is provided with an internal thread to be fixed to a preset position through a double-headed screw.
2. An insulator mounting platform according to claim 1,
the groove (51) is a closed groove body.
3. An insulator mounting platform according to claim 1 or 2,
the isolation protection mechanism (2) is detachably connected with the annular support (3) through a double-end screw rod.
4. An insulator mounting platform according to claim 1 or 2,
the annular support (3) is a support formed by bending a stainless steel plate.
5. An insulator mounting platform according to claim 1 or 2,
the isolation protection mechanism (2) is an isolation insulator.
CN201810902861.7A 2018-08-09 2018-08-09 Insulator mounting platform Active CN109244947B (en)

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Application Number Priority Date Filing Date Title
CN201810902861.7A CN109244947B (en) 2018-08-09 2018-08-09 Insulator mounting platform

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Application Number Priority Date Filing Date Title
CN201810902861.7A CN109244947B (en) 2018-08-09 2018-08-09 Insulator mounting platform

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CN109244947A CN109244947A (en) 2019-01-18
CN109244947B true CN109244947B (en) 2021-12-03

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202330626U (en) * 2011-11-07 2012-07-11 江西省电力科学研究院 Withstand voltage test platform of live line tool
JP2012154879A (en) * 2011-01-28 2012-08-16 Meidensha Corp Partial discharge measuring apparatus
CN203350277U (en) * 2013-07-15 2013-12-18 国家电网公司 High-voltage insulator suspension device
CN204154833U (en) * 2014-10-30 2015-02-11 云南省送变电工程公司 Super High Voltage Live-line Operation insulating safety tools pilot system
CN204903699U (en) * 2015-07-08 2015-12-23 江苏凤凰电气股份有限公司 Insulator insulating properties detects gallows
CN205665194U (en) * 2016-05-31 2016-10-26 中国南方电网有限责任公司电网技术研究中心 Insulator salt density detection device
CN207090791U (en) * 2017-08-28 2018-03-13 佛山市顺德区伦教港兴建材有限公司 One kind lifting parallel shelf
CN207090792U (en) * 2017-05-09 2018-03-13 四川新东方电缆集团有限公司 A kind of lifting hook for cable tray

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012154879A (en) * 2011-01-28 2012-08-16 Meidensha Corp Partial discharge measuring apparatus
CN202330626U (en) * 2011-11-07 2012-07-11 江西省电力科学研究院 Withstand voltage test platform of live line tool
CN203350277U (en) * 2013-07-15 2013-12-18 国家电网公司 High-voltage insulator suspension device
CN204154833U (en) * 2014-10-30 2015-02-11 云南省送变电工程公司 Super High Voltage Live-line Operation insulating safety tools pilot system
CN204903699U (en) * 2015-07-08 2015-12-23 江苏凤凰电气股份有限公司 Insulator insulating properties detects gallows
CN205665194U (en) * 2016-05-31 2016-10-26 中国南方电网有限责任公司电网技术研究中心 Insulator salt density detection device
CN207090792U (en) * 2017-05-09 2018-03-13 四川新东方电缆集团有限公司 A kind of lifting hook for cable tray
CN207090791U (en) * 2017-08-28 2018-03-13 佛山市顺德区伦教港兴建材有限公司 One kind lifting parallel shelf

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