CN220543036U - Electric and thermal composite stress aging testing device for composite insulator - Google Patents
Electric and thermal composite stress aging testing device for composite insulator Download PDFInfo
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- CN220543036U CN220543036U CN202320713600.7U CN202320713600U CN220543036U CN 220543036 U CN220543036 U CN 220543036U CN 202320713600 U CN202320713600 U CN 202320713600U CN 220543036 U CN220543036 U CN 220543036U
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- transformer
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- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 230000032683 aging Effects 0.000 title claims abstract description 36
- 239000012212 insulator Substances 0.000 title claims abstract description 29
- 230000035882 stress Effects 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 title claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 238000005485 electric heating Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000003878 thermal aging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The utility model relates to an electric and thermal composite stress aging testing device for a composite insulator, which comprises: the sample assembly comprises a core rod sample, and two ends of the core rod sample are respectively connected with a high-voltage electrode and a grounding electrode; the adjustable power supply module comprises an alternating current power supply, a voltage regulator, a transformer, a protection resistor and a filter capacitor; the alternating current power supply is connected with the voltage regulator, the voltage regulator is connected with the input end of the transformer, the voltage regulator can regulate the input voltage of the transformer, and the high-voltage end of the output side of the transformer is sequentially connected with the protection resistor, the filter capacitor and the high-voltage electrode; the output side grounding end of the transformer is connected with the grounding electrode; and the electrothermal drying box is used for placing the sample assembly. According to the electric and thermal composite stress aging testing device for the composite insulator, the composite insulator core rod sample is placed between the two electrodes, and the core rod sample bears the effects of high pressure and high temperature, so that the aging characteristics of the composite insulator core rod under various aging stresses of electricity and heat can be conveniently explored.
Description
Technical Field
The utility model relates to the field of experimental detection equipment, in particular to an electric and thermal composite stress aging testing device for a composite insulator.
Background
The aging phenomenon of the composite insulator is that the insulation performance gradually decreases due to long-term effects of stress such as an electric field, temperature, humidity, surrounding environment and the like in the process of putting the composite insulator into use. The problems of high voltage, heating and temperature rise of the two ends of the composite insulator during the operation of the hanging net, service life reduction caused by electric aging of the umbrella skirt material of the composite insulator gradually become the focus of attention of the power system, and the aging process is difficult to diagnose and monitor. If the device can be used for simulating the ageing process of the composite insulator core rod, the electric and thermal multi-stress ageing test can be carried out on the core rod, and the device is favorable for researching the ageing characteristic of the composite insulator.
Disclosure of Invention
In order to overcome the problems in the prior art, the utility model provides an electric and thermal composite stress aging testing device for a composite insulator, wherein a composite insulator core rod sample is placed between two electrodes, and the core rod sample bears the actions of high pressure and high temperature, so that the aging characteristics of the composite insulator core rod under various aging stresses of electricity and heat can be conveniently explored.
The technical scheme adopted for solving the technical problems is as follows: an electrical and thermal composite stress aging testing device for a composite insulator, comprising:
the sample assembly comprises a core rod sample, and two ends of the core rod sample are respectively connected with a high-voltage electrode and a grounding electrode;
the adjustable power supply module comprises an alternating current power supply, a voltage regulator, a transformer, a protection resistor and a filter capacitor; the alternating current power supply is connected with the voltage regulator, the voltage regulator is connected with the input end of the transformer, the voltage regulator can regulate the input voltage of the transformer, and the high-voltage end of the output side of the transformer is sequentially connected with the protection resistor, the filter capacitor and the high-voltage electrode; the output side grounding end of the transformer is connected with the grounding electrode;
the electric heating drying box is used for placing the sample assembly, so that the core rod sample can act on a high-pressure and high-temperature environment and is subjected to the action of various ageing stresses of electricity and heat.
Preferably, at least two sample components are arranged in the electrothermal drying oven, and the sample components are connected in parallel.
Preferably, the alternating current power supply is a 50Hz alternating current power supply.
Preferably, the output end of the transformer is grounded, so that the safe operation of the equipment is ensured.
Preferably, a temperature control system is arranged in the electric heating drying box, so that the temperature in the electric heating drying box can be set to be kept at the set temperature.
The beneficial effects of the utility model are as follows: an electric and thermal composite stress aging testing device for a composite insulator is characterized in that a composite insulator core rod sample is placed between two electrodes, a power supply and a transformer enable high voltage to be formed between a high-voltage electrode and a grounding electrode, meanwhile, the core rod sample is placed in an electric heating drying box and fixed between the high-voltage electrode and the grounding electrode, and the core rod sample is applied with high temperature and high voltage, so that the aging characteristics of the composite insulator core rod under various electric and thermal aging stresses can be conveniently explored. The temperature control system is arranged in the electric heating drying box, so that the temperature can be set, and the sample in the electric heating drying box can be kept at the set temperature.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an electrical and thermal composite stress aging test device for a composite insulator according to the present utility model.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model. In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known devices, systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.
The electric and thermal composite stress aging test device for the composite insulator shown in fig. 1 is used for carrying out electric and thermal composite stress aging test on a sample assembly by an adjustable power supply module and an electric heating drying oven.
The sample assembly is a core rod sample 8, and a high-voltage electrode 6 and a ground electrode 7 are respectively connected to both ends of the core rod sample 8.
The adjustable power supply module consists of an alternating current power supply 1, a voltage regulator 2, a transformer 3, a protection resistor 4 and a filter capacitor 5; the alternating current power supply 1 is connected with the voltage regulator 2, the voltage regulator 2 is connected with the input end of the transformer 3, the voltage regulator 2 can regulate the input voltage of the transformer 3, the high-voltage end of the output side of the transformer 3 is sequentially connected with the protection resistor 4 and the filter capacitor 5, and then is connected with the high-voltage electrode 6 of the sample assembly; the output side grounding end of the transformer 3 is connected with a grounding electrode 7.
The electrothermal drying box 9 is used for placing a sample assembly, so that the core rod sample 8 can act on a high-pressure and high-temperature environment and is subjected to the action of various ageing stresses of electricity and heat. Wherein, a temperature control system is arranged in the electric heating drying box 9, and the temperature can be set, so that the temperature in the electric heating drying box 9 is kept at the set temperature. The core rod sample 8 is applied with high temperature and high pressure, so that the ageing characteristics of the composite insulator core rod under various ageing stresses of electricity and heat can be conveniently explored.
In one embodiment, the sample assembly is two or more, each connected in parallel, and each is placed in the electrothermal drying oven 9.
The ac power supply in this embodiment is a 50Hz ac power supply.
In the embodiment, the output end of the transformer 3 is grounded, so that the safe operation of the equipment is ensured.
According to the electric and thermal composite stress aging testing device for the composite insulator, the composite insulator core rod sample is placed between the two electrodes, the power supply and the transformer enable high voltage to be formed between the high-voltage electrode and the grounding electrode, meanwhile, the core rod sample is placed in the electric heating drying box and fixed between the high-voltage electrode and the grounding electrode, and the core rod sample is applied with high temperature and high voltage, so that the aging characteristics of the composite insulator core rod under various electric and thermal aging stresses can be conveniently explored. The temperature control system is arranged in the electric heating drying box, so that the temperature can be set, and the sample in the electric heating drying box can be kept at the set temperature.
The core rod sample is put into the high-voltage electrode and the grounding electrode by an experimenter, the equipment voltage is adjusted, the internal temperature of the electric heating drying box is set, and the aging process of the core rod sample can be simulated in the environment of high pressure and high temperature.
The test method of the utility model comprises the following steps:
1. and applying voltage to the core rod sample through a high-voltage power supply, a high-voltage electrode and a grounding electrode to realize the electric aging process of the core rod sample.
2. The heating of the core rod sample is realized by placing the sample in an electrothermal drying box, and the thermal ageing process of the core rod sample is realized.
3. And heating the core rod sample, and simultaneously applying voltage to the core rod sample through a high-voltage power supply, a high-voltage electrode and a grounding electrode to realize the electric aging process of the core rod sample.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (3)
1. An electric and thermal composite stress aging testing device for a composite insulator is characterized in that: comprising the following steps:
the sample assembly comprises a core rod sample, and two ends of the core rod sample are respectively connected with a high-voltage electrode and a grounding electrode;
the adjustable power supply module comprises an alternating current power supply, a voltage regulator, a transformer, a protection resistor and a filter capacitor; the alternating current power supply is connected with the voltage regulator, the voltage regulator is connected with the input end of the transformer, the voltage regulator can regulate the input voltage of the transformer, and the high-voltage end of the output side of the transformer is sequentially connected with the protection resistor, the filter capacitor and the high-voltage electrode; the output side grounding end of the transformer is connected with the grounding electrode;
the electric heating drying box is used for placing a sample assembly, so that a core rod sample can act in a high-pressure and high-temperature environment and is subjected to the action of various ageing stresses of electricity and heat;
at least two sample components are arranged in the electrothermal drying oven, and the sample components are connected in parallel;
the temperature control system is arranged in the electric heating drying box, and the temperature can be set, so that the temperature in the electric heating drying box is kept at the set temperature.
2. The electrical and thermal composite stress aging testing device for composite insulators according to claim 1, wherein: the alternating current power supply is a 50Hz alternating current power supply.
3. An electrical and thermal composite stress aging testing apparatus for composite insulators according to claim 2, wherein: the output end of the transformer is grounded, so that the safe operation of the equipment is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320713600.7U CN220543036U (en) | 2023-04-04 | 2023-04-04 | Electric and thermal composite stress aging testing device for composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320713600.7U CN220543036U (en) | 2023-04-04 | 2023-04-04 | Electric and thermal composite stress aging testing device for composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220543036U true CN220543036U (en) | 2024-02-27 |
Family
ID=89962296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320713600.7U Active CN220543036U (en) | 2023-04-04 | 2023-04-04 | Electric and thermal composite stress aging testing device for composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220543036U (en) |
-
2023
- 2023-04-04 CN CN202320713600.7U patent/CN220543036U/en active Active
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