CN112763169B - Wind vibration simulation test device for horizontally arranged insulators - Google Patents
Wind vibration simulation test device for horizontally arranged insulators Download PDFInfo
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- CN112763169B CN112763169B CN202011388692.3A CN202011388692A CN112763169B CN 112763169 B CN112763169 B CN 112763169B CN 202011388692 A CN202011388692 A CN 202011388692A CN 112763169 B CN112763169 B CN 112763169B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention provides a horizontally arranged insulator wind vibration simulation test device, which comprises: the support device is used for supporting and fixing the low-voltage end of the insulator; the load applying device is arranged at the high-voltage end of the insulator and used for supporting the high-voltage end of the insulator; and the control system is connected with the load applying device and is used for controlling the load applying device to apply dynamic load to the insulator. According to the invention, the support device and the load applying device respectively support the two ends of the insulator so that the insulator is in a horizontal state, the actual working condition of the insulator can be simulated, the support device fixes the low-voltage end of the insulator, and the control system controls the load applying device to apply dynamic load to the high-voltage end of the insulator so as to realize wind vibration fatigue test of the insulator under the dynamic load, and further determine the wind vibration fatigue performance of the insulator under the dynamic load.
Description
Technical Field
The invention relates to the technical field of power transmission and transformation engineering, in particular to a horizontally arranged insulator wind vibration simulation test device.
Background
In addition to static load (the line column type composite insulator bears the weight of a lead and the wall bushing bears the dead weight), the long-cantilever large-diameter composite insulator (comprising the line column type composite insulator and the wall bushing) also bears wind dynamic load and vibrates periodically at a certain frequency. Under dynamic load, the long cantilever large-diameter composite insulator is subjected to periodic bending moment force, the end sealing and the interface (comprising the silicone rubber umbrella cover, the epoxy glass fiber reinforced plastic and the epoxy glass fiber reinforced plastic internal layer joint) of the long cantilever large-diameter composite insulator are influenced, once the sealing is damaged, water vapor is immersed into or the interface is separated from the long cantilever large-diameter composite insulator to cause internal partial discharge, the operation of the large-diameter composite insulator is damaged or even broken down, and the safe operation of a power grid is seriously influenced. Therefore, vibration fatigue test is required for the insulator and the wire, however, static load can be calculated and checked when designing the large-diameter insulator, and dynamic load cannot be designed and checked.
Disclosure of Invention
In view of the above, the invention provides a horizontally arranged wind vibration simulation test device for insulators, which aims to solve the problem that vibration fatigue test of insulators under dynamic load cannot be carried out in the prior art.
The invention provides a horizontally arranged insulator wind vibration simulation test device, which comprises: the support device is used for supporting and fixing the low-voltage end of the insulator; the load applying device is arranged at the high-voltage end of the insulator and used for supporting the high-voltage end of the insulator; and the control system is connected with the load applying device and is used for controlling the load applying device to apply dynamic load to the insulator.
Further, the wind vibration simulation test device for the horizontally arranged insulator further comprises: the body is arranged below the insulator in parallel; the load applying device is connected with the body in a position adjustable way so as to adapt to the length of the insulator.
Further, the wind vibration simulation test device for the horizontally arranged insulator further comprises: the sliding block is arranged on the body, extends along the length direction of the insulator, is slidably arranged on the sliding groove and is detachably connected with the load applying device when sliding to any position.
Further, in the horizontally arranged insulator wind vibration simulation test device, a groove is formed in one surface of the body, facing the insulator, a concave portion which is concave inwards is formed in the bottom of the groove, the radial size of the concave portion is larger than that of the groove, and a sliding groove is formed by the groove and the concave portion; the slider is the screw rod, and the top of screw rod is provided with spacing portion, and the recess is worn to locate by the screw rod, and spacing portion slidable inlays and locates in the recess establishes the portion, and screw rod and load applying device looks spiro union.
Further, in the horizontally arranged insulator wind vibration simulation test device, two sliding grooves are arranged in parallel, and two sliding blocks are in one-to-one correspondence with the two sliding grooves.
Further, in the above-mentioned horizontally arranged insulator wind vibration simulation test apparatus, the load applying apparatus includes: the base is connected with the body in a position-adjustable manner; the actuator is connected with the base and the control system and is used for applying dynamic load to the insulator under the control of the control system; the piston guide sleeve is connected with the driving end of the actuator; the adjusting mechanism is arranged between the piston guide sleeve and the high-voltage end of the insulator.
Further, in the horizontally arranged insulator wind vibration simulation test device, the adjusting mechanism is a hinge device, one end of the hinge device is rotatably connected with the piston guide sleeve, and the other end of the hinge device is connected with the high-voltage end of the insulator.
Further, the wind vibration simulation test device for the horizontally arranged insulator further comprises: the input device is used for inputting dynamic load parameters; the control system is electrically connected with the input device and is used for controlling the load applying device to apply dynamic load to the insulator according to the dynamic load parameters.
Further, in the above-mentioned horizontally arranged insulator wind vibration simulation test device, the supporting device includes: a support body; and the matching mechanism is connected with the support body and the low-voltage end of the insulator so as to adapt to the diameter of the insulator.
Further, in the above-mentioned insulator wind vibration simulation test device of horizontal arrangement, matching mechanism includes: the keysets, detachably sets up in the supporter, and the keysets is provided with at least one annular circle, and every annular circle all includes: the insulator comprises a plurality of circumferentially distributed bolt holes, wherein a flange is arranged at the low-voltage end of the insulator, and all through holes in the flange are in one-to-one correspondence with all the bolt holes in any one annular ring and are connected through bolts.
According to the invention, the support device and the load applying device respectively support the two ends of the insulator so that the insulator is in a horizontal state, the actual working condition of the insulator can be simulated, the support device fixes the low-voltage end of the insulator, the control system controls the load applying device to apply dynamic load to the high-voltage end of the insulator, so that wind vibration fatigue test of the insulator under the dynamic load is realized, further wind vibration fatigue performance of the insulator under the dynamic load is determined, and the problem that the vibration fatigue test of the insulator under the dynamic load cannot be carried out in the prior art is solved.
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 designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural diagram of a horizontally arranged wind vibration simulation test device for an insulator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a supporting device in a horizontally arranged wind vibration simulation test device for an insulator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an adapter plate in the horizontally arranged wind vibration simulation test device for insulators according to the embodiment of the invention;
fig. 4 is a schematic structural diagram of a body in the horizontally arranged wind vibration simulation test device for insulators according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a load applying device in a horizontally arranged wind vibration simulation test device for an insulator 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, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a wind vibration simulation test device for a horizontally arranged insulator according to an embodiment of the present invention. The horizontally arranged insulator wind vibration simulation test device is used for applying dynamic load to the insulator 4 so as to conveniently detect vibration fatigue performance of the insulator 4 under the dynamic load, wherein the insulator 4 can be a long-cantilever large-diameter composite insulator. The dynamic load may include: the wind dynamic load may also include other dynamic loads, which the present embodiment does not limit. The dynamic load in this embodiment is in particular a wind dynamic load.
As shown in the figure, the wind vibration simulation test device for the horizontally arranged insulator comprises: a support device 1, a load applying device 2 and a control system 3. Wherein the supporting device 1 is used for supporting and fixing the low-voltage end of the insulator 4. The load applying device 2 is disposed at the high voltage end of the insulator 4, and the load applying device 2 is configured to support the high voltage end of the insulator 4 and apply a dynamic load to the high voltage end of the insulator 4. Specifically, the insulator 4 is in a horizontal state supported by the supporting device 1 and the load applying device 2, and the load applying device 2 is perpendicular to the insulator 4.
The control system 3 is connected with the load applying device 2, and the control system 3 is used for controlling the load applying device 2 to apply dynamic load to the insulator 4. Specifically, the control system 3 controls the load applying device 2 according to dynamic load parameters, so that the load applying device 2 applies a load perpendicular to the insulator 4 with a certain frequency and a certain vibration amplitude to the high-voltage end of the insulator 4, and the load is used for simulating the action of wind load under actual operation conditions. The dynamic load parameters may include: the vibration frequency, amplitude, vibration waveform, and force magnitude may of course also include other parameters, which are not limited in any way by the present embodiment.
The insulator wind vibration simulation test device that horizontal arrangement can also include: an input device. The input device is used for inputting dynamic load parameters. Specifically, the input device may be a keyboard, a touch screen, or the like, which is not limited in this embodiment. The control system 3 is electrically connected with the input device, and the control system 3 is used for controlling the load applying device 2 to apply dynamic load to the insulator 4 according to the received dynamic load parameters.
It can be seen that in this embodiment, the support device 1 and the load applying device 2 support the two ends of the insulator 4 respectively, so that the insulator 4 is in a horizontal state, and the actual working condition of the insulator 4 can be simulated, the support device 1 fixes the low-voltage end of the insulator 4, and the control system 3 controls the load applying device 2 to apply a dynamic load to the high-voltage end of the insulator 4, so as to implement a wind vibration fatigue test of the insulator 4 under the dynamic load, further determine the wind vibration fatigue performance of the insulator 4 under the dynamic load, and solve the problem that the vibration fatigue test of the insulator under the dynamic load cannot be performed in the prior art.
Referring to fig. 1 and 4, in the above embodiment, the horizontally arranged insulator wind vibration simulation test apparatus may further include: and a body 5. Wherein the body 5 is arranged in parallel below the insulator 4. Specifically, the body 5 is parallel to the insulator 4, and a certain distance is provided between the body 5 and the insulator 4, which can be determined according to practical situations, and the present embodiment does not limit this. The length direction of the body 5 is consistent with the length direction of the insulator 4, one end of the body 5 may be connected with the supporting device 1, and the body 5 may be connected with the ground to ensure the stability of the body 5.
The load applying device 2 is adjustably connected to the body 5 in a position to accommodate the length of the insulator 4. Specifically, the load applying device 2 is adjusted in position on the body 5 according to the length of the insulator 4 so that the load applying device 2 can be connected to the high-voltage end of the insulator 4.
The insulator wind vibration simulation test device that horizontal arrangement can also include: a slider (not shown). The body 5 is provided with a chute 51, and the chute 51 extends along the length direction of the insulator 4. Since the longitudinal direction of the body 5 coincides with the longitudinal direction of the insulator 4, the slide groove 51 extends along the longitudinal direction of the body 5. The slide is slidably arranged in the slide groove 51 and, when the slide is slid to any one position, the slide is detachably connected with the load applying device 2, so that the load applying device 2 is positionally adjustably connected with the body 5.
Preferably, a groove 511 is formed on a surface of the body 5 facing the insulator 4, specifically, a surface of the body 5 facing the insulator 4 is denoted as a top surface (an upper surface shown in fig. 4) of the body 5, and a surface of the body 5 away from the insulator 4 is denoted as a bottom surface (a lower surface shown in fig. 4) of the body 5, and the bottom surface of the body 5 is connected to the ground. The groove 511 is formed on the top surface of the body 5, and the groove 511 is recessed toward the bottom surface of the body 5. The top of the groove 511 corresponds to the top surface of the body 5 and is an open end, the bottom of the groove 511 is provided with a concave portion 512 which is concave inwards, the concave portion 512 continues to be concave towards the bottom surface of the body 5, the radial dimension (the left-to-right dimension shown in fig. 4) of the concave portion 512 is larger than the radial dimension (the left-to-right dimension shown in fig. 4) of the groove 511, and then the groove 511 and the concave portion 512 form a chute 51 with an inverted T-shaped section.
The slider can be the screw rod, and the top of screw rod is provided with spacing portion, and this spacing portion is mutually perpendicular with the screw rod, then spacing portion and screw rod form "T". The screw rod is inserted into the groove 511, and the limiting portion is slidably embedded in the concave portion 512, that is, the screw rod and the limiting portion can slide in the inverted T-shaped chute 51 along the length direction of the chute 51. When the screw is slid to a certain position, the screw is screwed with the load applying device 2.
Preferably, two sliding grooves 51 are provided, and the two sliding grooves 51 are arranged in parallel and are both arranged on the body 5. The number of the sliding blocks is two, the two sliding blocks are in one-to-one correspondence with the two sliding grooves 51, and each sliding block slides in the corresponding sliding groove 51.
In practice, the insulator 4 may be 12m at the longest and 2m at the shortest.
It can be seen that in this embodiment, the slider slides in the chute 51 of the body 5, and when sliding to a certain position, the slider is detachably connected with the load applying device 2, so as to adapt to the length of the insulator 4, and further apply a dynamic load to the high voltage end of the insulator 4, so that the structure is simple, and implementation is convenient.
Referring to fig. 5, in the above embodiments, the load applying device 2 may include: a base 21, an actuator 22, a piston guide 23 and an adjustment mechanism. The base 21 is connected with the body 5 in a position-adjustable manner, specifically, the base 21 is detachably connected with the sliding block, more specifically, a through hole is formed in the base 21, a threaded hole is formed in the base 21, and a screw rod penetrates through the through hole and is in threaded connection with the threaded hole.
An actuator 22 is connected to the base 21 and the actuator 22 is connected to the control system 3, the actuator 22 being arranged to apply a dynamic load to the insulator 4 under control of the control system 3. The piston guide 23 is connected to the driving end of the actuator 22, specifically, the actuator 22 is disposed above the base 21 (with respect to fig. 5), the piston guide 23 is disposed above the actuator 22 (with respect to fig. 5), and the actuator 22 drives the movable guide to move up and down (with respect to fig. 5).
The adjusting mechanism is arranged between the piston guide sleeve 23 and the high-voltage end of the insulator 4, and is used for relieving the impact of the piston guide sleeve 23 on the insulator 4 when dynamic load is applied to the insulator 4 and preventing the damage of the actuator 22 and the piston guide sleeve 23. Preferably, the adjusting mechanism is a hinge device 24, one end (lower end shown in fig. 5) of the hinge device 24 is rotatably connected with the piston guide sleeve 23, and the other end (upper end shown in fig. 5) of the hinge device 24 is connected with the high-voltage end of the insulator 4, so that damage to the piston in the actuator 22 caused by long-term action of micro-deflection force in a non-vertical direction is prevented.
In particular, the actuator 22 may be a hydraulic servo actuator and the control system 3 may be a hydraulic servo control system. The hydraulic servo control system may include: the specific structure of the controller, the hydraulic pump station and the cooling device with respect to the hydraulic servo control system can be referred to in the prior art, and the description of this embodiment is omitted here.
It can be seen that in this embodiment, the load applying device 2 has a simple structure and is easy to implement.
Referring to fig. 1 to 3, in the above embodiments, the supporting device 1 may include: a support 11 and a matching mechanism. The matching mechanism is connected with the support 11 and the low-voltage end of the insulator 4 to adapt to the diameters of the insulator 4, so that the matching mechanism can adapt to insulators 4 with different diameters, and the application range is enlarged.
The mating mechanism may include: an adapter plate 12. Wherein, keysets 12 detachably sets up in support 11, and keysets 12 are provided with at least one annular circle 14, and every annular circle 14 all includes: the low-voltage end of the insulator 4 is provided with a flange plate, and each through hole on the flange plate corresponds to each bolt hole 141 in any annular ring 14 one by one and is connected with the bolt.
Specifically, the supporting body 11 may be provided with a U-shaped steel plate 13, where the U-shaped steel plate 13 is connected to the adapter plate 12, and the adapter plate 12 is bolted to a flange on the low voltage end of the insulator 4. The center of each annular ring 14 is aligned with the center of the adapter plate 12, and the diameter of each annular ring 14 gradually increases from the center of the adapter plate 12 to the outer side, i.e. each annular ring 14 is sleeved in sequence from the center of the adapter plate 12 to the outer side. The bolt holes 141 in each annular ring 14 are uniformly distributed in the circumferential direction of the annular ring 14. The flange plate and each bolt hole 141 on the corresponding annular ring 14 are connected through bolts.
In particular, the support 11 may be a shear wall.
It can be seen that in this embodiment, the supporting body 11 plays a supporting role, and each bolt hole on the flange plate of the insulator 4 is connected with each bolt hole 141 on the corresponding annular ring 14 on the adapter plate 12 through a bolt, so that the device can adapt to insulators 4 with different diameters, and the application range of the device is enlarged.
To sum up, in this embodiment, the support device 1 and the load applying device 2 support the two ends of the insulator 4 respectively, so that the insulator 4 is in a horizontal state, the actual working condition of the insulator 4 can be simulated, the support device 1 fixes the low-voltage end of the insulator 4, the control system 3 controls the load applying device 2 to apply a dynamic load to the high-voltage end of the insulator 4, so as to realize the wind vibration fatigue test of the insulator 4 under the dynamic load, further determine the wind vibration fatigue performance of the insulator 4 under the dynamic load, and the device can perform the test on large-diameter composite insulators with different diameters and different lengths, thereby expanding the application range.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A wind vibration simulation test device for an insulator which is horizontally arranged is characterized by comprising:
the support device (1) is used for supporting and fixing the low-voltage end of the insulator (4);
the load applying device (2) is arranged at the high-voltage end of the insulator (4) and is used for supporting the high-voltage end of the insulator (4);
the control system (3) is connected with the load applying device (2) and is used for controlling the load applying device (2) to apply dynamic load to the high-voltage end of the insulator (4);
a main body (5) arranged in parallel below the insulators (4);
the load applying device (2) is connected with the body (5) in a position adjustable way so as to adapt to the length of the insulator (4);
the input device is used for inputting dynamic load parameters;
the control system (3) is electrically connected with the input device and is used for controlling the load applying device (2) to apply dynamic load to the insulator (4) according to the dynamic load parameters;
the support device (1) comprises:
a support body (11);
the matching mechanism is connected with the low-voltage ends of the supporting body (11) and the insulator (4) so as to adapt to the diameter of the insulator (4);
the matching mechanism includes:
the adapter plate (12) detachably set up in supporter (11), adapter plate (12) are provided with at least one annular circle (14), every annular circle (14) all include: the low-voltage end of the insulator (4) is provided with a flange, and all through holes on the flange are in one-to-one correspondence with all the bolt holes (141) in any one annular ring (14) and are connected through bolts;
the load applying device (2) includes:
a base (21) connected with the body (5) in a position-adjustable manner;
an actuator (22) connected to the base (21) and to the control system (3) for applying a dynamic load to the insulator (4) under the control of the control system (3);
the piston guide sleeve (23) is connected with the driving end of the actuator (22);
the adjusting mechanism is arranged between the piston guide sleeve (23) and the high-voltage end of the insulator (4).
2. The horizontally arranged insulator wind vibration simulation test apparatus of claim 1, further comprising:
the sliding block is arranged on the body (5), a sliding groove (51) extending along the length direction of the insulator (4) is arranged on the sliding groove (51) in a sliding mode, and the sliding block is detachably connected with the load applying device (2) when sliding to any position.
3. A horizontally arranged insulator wind vibration simulation test apparatus according to claim 2, wherein,
a groove (511) is formed in one surface, facing the insulator (4), of the body (5), a concave portion (512) which is concave inwards is formed in the bottom of the groove (511), the radial size of the concave portion (512) is larger than that of the groove (511), and the groove (511) and the concave portion (512) form the sliding groove (51);
the sliding block is a screw, a limiting part is arranged at the top of the screw, the screw penetrates through the groove (511), the limiting part is slidably embedded in the concave part (512), and the screw is in threaded connection with the load applying device (2).
4. A horizontally arranged wind vibration simulation test device for insulators according to claim 2 or 3, wherein the number of the sliding grooves (51) is two, the sliding blocks are arranged in parallel, and the two sliding blocks are in one-to-one correspondence with the two sliding grooves (51).
5. The horizontally arranged insulator wind vibration simulation test device according to claim 1, wherein the adjusting mechanism is a hinge device (24), one end of the hinge device (24) is rotatably connected with the piston guide sleeve (23), and the other end of the hinge device (24) is connected with the high-voltage end of the insulator (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011388692.3A CN112763169B (en) | 2020-12-01 | 2020-12-01 | Wind vibration simulation test device for horizontally arranged insulators |
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| CN202011388692.3A CN112763169B (en) | 2020-12-01 | 2020-12-01 | Wind vibration simulation test device for horizontally arranged insulators |
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| CN112763169B true CN112763169B (en) | 2023-05-02 |
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| CN116754911B (en) * | 2023-08-17 | 2023-10-31 | 江苏新亚高电压测试设备有限公司 | Intelligent insulation test device |
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| JPH09189650A (en) * | 1996-01-10 | 1997-07-22 | Ngk Insulators Ltd | Method and device for conducting bending load test on rod-shaped insulator |
| CN203732233U (en) * | 2014-01-15 | 2014-07-23 | 云南电力试验研究院（集团）有限公司电力研究院 | Simulation device for testing impact load of pillar insulator |
| CN104677756A (en) * | 2013-12-02 | 2015-06-03 | 国家电网公司 | Synthetical fatigue testing system and method for extensional vibration and torsion of composite insulator |
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| US9176025B2 (en) * | 2011-12-28 | 2015-11-03 | Electric Power Research Institute, Inc. | Apparatus and method of vibration testing for manufacturing defect detection in composite insulators |
| CN104833469B (en) * | 2015-04-16 | 2017-05-03 | 三峡大学 | Composite insulator dynamic load torsional vibration testing machine |
| CN105606391B (en) * | 2016-03-18 | 2017-12-19 | 哈尔滨工程大学 | Large fan tower frame strength experimental rig and test method |
| CN106950020A (en) * | 2017-03-09 | 2017-07-14 | 中国电力科学研究院 | The test device of insulator vibrating fatigue performance |
| CN206627276U (en) * | 2017-03-30 | 2017-11-10 | 国网新疆电力公司电力科学研究院 | Composite insulator fatigue property test device |
| CN110987653A (en) * | 2019-11-08 | 2020-04-10 | 浙江华电器材检测研究所有限公司 | Bending fatigue resistance testing method for 500kV wind deflection prevention jumper wire insulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09189650A (en) * | 1996-01-10 | 1997-07-22 | Ngk Insulators Ltd | Method and device for conducting bending load test on rod-shaped insulator |
| CN104677756A (en) * | 2013-12-02 | 2015-06-03 | 国家电网公司 | Synthetical fatigue testing system and method for extensional vibration and torsion of composite insulator |
| CN203732233U (en) * | 2014-01-15 | 2014-07-23 | 云南电力试验研究院（集团）有限公司电力研究院 | Simulation device for testing impact load of pillar insulator |
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