CN112379233A - Composite insulator brittle fracture simulation test method and simulation test system thereof - Google Patents
Composite insulator brittle fracture simulation test method and simulation test system thereof Download PDFInfo
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- CN112379233A CN112379233A CN202011282842.2A CN202011282842A CN112379233A CN 112379233 A CN112379233 A CN 112379233A CN 202011282842 A CN202011282842 A CN 202011282842A CN 112379233 A CN112379233 A CN 112379233A
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- 239000012212 insulator Substances 0.000 title claims abstract description 110
- 239000002131 composite material Substances 0.000 title claims abstract description 86
- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000004088 simulation Methods 0.000 title claims abstract description 18
- 238000010998 test method Methods 0.000 title claims abstract description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 20
- 239000011780 sodium chloride Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000012267 brine Substances 0.000 claims abstract description 16
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 14
- 238000004378 air conditioning Methods 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000003763 carbonization Methods 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002023 wood Substances 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
- G01R31/1227—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 of components, parts or materials
- G01R31/1245—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 of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
-
- 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
- G01R31/1218—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 using optical methods; using charged particle, e.g. electron, beams or X-rays
-
- 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
- G01R31/20—Preparation of articles or specimens to facilitate testing
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Testing Relating To Insulation (AREA)
- Insulators (AREA)
Abstract
The invention provides a composite insulator mandrel crisp simulation test method, which comprises the following steps: placing the cleaned and pretreated composite insulator core rod sample in a closed test box, and injecting atomized corrosive solution with the conductivity being more than or equal to 100 mu S/cm into the test box; after the atomized brine is fully distributed in the test box, applying voltage to the composite insulator core rod sample by a voltage generator; when the applied voltage reaches the set time, closing the voltage generator, detecting the temperature of the composite insulator core rod sample and acquiring the image information of the insulator core rod sample; judging whether the temperature change value of the insulator core rod sample is greater than a set value, if so, entering the step S6; or: judging whether the insulating core rod sample is broken or corroded electrically according to the image information of the insulator core rod sample, if so, entering a step S6, otherwise, changing test parameters including a voltage value applied by a voltage generator, the conductivity of saline water or the pH value of the saline water, and returning to the step S3; and recording parameters meeting the requirements of the brittle failure process of the insulator core rod sample at present.
Description
Technical Field
The invention relates to the field of electric power, in particular to a composite insulator breakage simulation test method and a composite insulator breakage simulation test system.
Background
The composite insulator has the advantages of excellent anti-pollution flashover performance, high specific strength, low possibility of breaking, light weight, easiness in installation and maintenance and the like, and is widely applied to electric power systems in China since the 80 th of the 20 th century. By 2019, over 900 thousands of composite insulators run in the power transmission line with 110kV and above voltage level in China.
The composite insulator is broken under the combined action of moisture, discharge, thermal electrolysis, acidic medium and mechanical stress. The macroscopic section of the core rod is not smooth, the core rod becomes crisp in texture and is like withered wood, the core rod is pulverized, and the glass fiber and the epoxy resin matrix are mutually separated; the interface failure area between the sheath and the core rod is mostly connected with the high-voltage end through a carbonization channel, and the insulator which is broken has abnormal temperature rise before being broken. The characteristic feature of the composite insulator brittle fracture is the degradation and deterioration of the epoxy resin matrix in the core rod, which is the most direct criterion for distinguishing the brittle fracture from the brittle fracture and the large buckling fracture.
Although the composite insulator string is a fault which is happened, once the string is broken, the line is stopped, the line cannot be successfully superposed, and the serious damage to the surrounding environment can be brought, so that the fault can not be tolerated by a power system. After the composite insulator adopts a compression joint structure and an acid-resistant core rod, the string breakage problem caused by brittle fracture and large buckling fracture is greatly reduced, and in recent years, the brittle fracture fault becomes the main fracture form of the composite insulator, and the safety and the stability of a power system are seriously threatened.
Therefore, how to accurately analyze the shape characteristics and the generation reasons of the brittle fracture of the composite insulator core rod is a technical problem to be solved urgently.
Disclosure of Invention
In view of the above, the present invention provides a composite insulator brittle fracture simulation test method and a simulation test system thereof, which can accurately test the morphological characteristics, aging characteristic parameters, and the like of a brittle fracture of a composite insulator, thereby facilitating the analytical research on the brittle fracture of the composite insulator to provide accurate data support, effectively avoiding a disconnection fault caused by the brittle fracture of the composite insulator during power operation, and ensuring the safe and stable operation of the power system.
The invention provides a composite insulator mandrel crisp simulation test method, which comprises the following steps:
s1, cleaning and pretreating a composite insulator core rod sample;
s2, placing the cleaned and pretreated composite insulator core rod sample in a closed test box, and injecting atomized corrosive solution with the conductivity being more than or equal to 100 mu S/cm into the test box, wherein the corrosive solution comprises saline water and nitric acid solution;
s3, after the test box is filled with atomized brine, applying voltage to the composite insulator core rod sample by a voltage generator;
s4, when the applied voltage reaches the set time, closing the voltage generator, detecting the temperature of the composite insulator core rod sample and acquiring image information of the insulator core rod sample;
s5, judging whether the temperature change value of the insulator core rod sample is larger than a set value or not, if so, entering the step S6; or: judging whether the insulating core rod sample has fracture or electric corrosion or not according to the image information of the insulator core rod sample, or: judging whether the insulating core rod sample has failure or internal carbonization through the leakage current, if so, entering the step S6, otherwise, changing test parameters including the voltage value applied by a voltage generator, the conductivity of the saline water or the pH value of the saline water, and returning to the step S3;
and S6, recording parameters meeting the requirements of the brittle failure process of the insulator core rod sample at present.
Further, in step S2, the conductivity of the brine is confirmed according to the following method:
Further, in step S3, the applied voltage of the voltage generator is determined according to the following method:
Further, in step S1, the cleaning pretreatment of the composite insulator mandrel sample includes:
cleaning a composite insulator core rod sample by adopting ethanol;
standing the cleaned composite insulator core rod sample in a dust-free environment for 24 hours;
and testing the resistivity and the dielectric characteristic parameters of the composite insulator core rod sample and recording.
Further, the voltage generator applying voltage to the composite insulator core rod sample specifically comprises:
the voltage generator directly applies voltage to the two axial ends of the composite insulator core rod sample, the voltage generator radially applies voltage to the composite insulator core rod sample through the electrodes, and the voltage generator applies voltage to the two axial ends of the composite insulator core rod sample through the electrodes.
Correspondingly, the invention also provides a composite insulator mandrel crisp breakage simulation test system which comprises a test box, an ultrasonic atomizer, a control host, an infrared camera, air conditioning equipment, leakage current detection equipment and a fan, wherein the test box is connected with the control host;
the test box is used for preventing the composite insulator core rod sample, is provided with an inlet and is in sealed communication with an output port of the ultrasonic atomizer;
the ultrasonic atomizer receives a control command of the control host to work, atomizes the saline water with set conductivity and then injects the atomized saline water into the test chamber;
the voltage generator is used for receiving a control command of the control host and applying a test voltage to the composite insulator core rod;
the infrared camera is used for acquiring image information and temperature information of the composite insulator core rod sample after voltage is applied to the composite insulator core rod sample and outputting the image information and the temperature information to the control host;
the air conditioning equipment is used for receiving a control command of the control host and adjusting the temperature in the test sample to reach a set value;
the fan is arranged in the test chamber and used for accelerating the gas flow in the test chamber to make the atomized saline water fully distributed in the test chamber;
the leakage current detection equipment is used for detecting the leakage current state of the composite insulator core rod sample and outputting the leakage current state to the control host;
and the control host is used for outputting control instructions to the voltage generator, the ultrasonic atomizer, the air conditioning equipment and the fan, and receiving and processing detection information output by the infrared camera, the temperature sensor and the leakage current detection equipment.
The invention has the beneficial effects that: according to the invention, the shape characteristics, the aging characteristic parameters and the like of the brittle fracture of the composite insulator can be accurately tested, so that accurate data support is provided for the analytical research of the brittle fracture of the composite insulator, the disconnection fault caused by the brittle fracture of the composite insulator in the power operation is effectively avoided, and the safe and stable operation of a power system is ensured.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic diagram of voltage loading according to the present invention.
Fig. 4 is a schematic diagram of a current sensing apparatus of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings of the specification:
the invention provides a composite insulator mandrel crisp simulation test method, which comprises the following steps:
s1, cleaning and pretreating a composite insulator core rod sample;
s2, placing the cleaned and pretreated composite insulator core rod sample in a closed test box, and injecting atomized corrosive solution with the conductivity being more than or equal to 100 mu S/cm into the test box, wherein the corrosive solution comprises saline water and nitric acid solution;
s3, after the test box is filled with atomized brine, applying voltage to the composite insulator core rod sample by a voltage generator;
s4, when the applied voltage reaches the set time, closing the voltage generator, detecting the temperature of the composite insulator core rod sample and acquiring image information of the insulator core rod sample;
s5, judging whether the temperature change value of the insulator core rod sample is larger than a set value or not, if so, entering the step S6; or: judging whether the insulating core rod sample has fracture or electric corrosion or not according to the image information of the insulator core rod sample, or: judging whether the insulating core rod sample has failure or internal carbonization through the leakage current, if so, entering the step S6, otherwise, changing test parameters including the voltage value applied by a voltage generator, the conductivity of the saline water or the pH value of the saline water, and returning to the step S3; judging whether the insulating core rod sample is carbonized or not and whether the insulating core rod sample fails or not according to comparison of the leakage current and a set threshold, wherein if the leakage current exceeds a first set threshold, internal carbonization is performed, and if the leakage current exceeds a second set threshold, internal failure is performed, wherein the first set threshold is smaller than the second set threshold;
s6, recording parameters meeting the requirements of the crisp-break process of the insulator core rod sample at present; according to the invention, the shape characteristics, the aging characteristic parameters and the like of the brittle fracture of the composite insulator can be accurately tested, so that accurate data support is provided for the analytical research of the brittle fracture of the composite insulator, the disconnection fault caused by the brittle fracture of the composite insulator in the power operation is effectively avoided, and the safe and stable operation of a power system is ensured.
In this example, in step S2, the conductivity of the brine was confirmed according to the following method:
In this embodiment, in step S3, the applied voltage of the voltage generator is determined according to the following method:
In this embodiment, in step S1, the cleaning pretreatment of the composite insulator mandrel sample includes:
cleaning a composite insulator core rod sample by adopting ethanol;
standing the cleaned composite insulator core rod sample in a dust-free environment for 24 hours;
the resistivity and the dielectric characteristic parameters of the composite insulator core rod sample are tested and recorded, and by the method, the interferences of impurities, dust and the like on the surface of the composite insulator core rod sample can be eliminated, so that the accuracy of the test result is ensured.
In this embodiment, the step of applying a voltage to the composite insulator core rod sample by the voltage generator specifically includes:
in step S5, when returning to step S3, the voltage generator may further change the voltage loading manner, that is, the voltage generator may perform loading in different loading manners under the condition of predetermined parameters, thereby ensuring the test comprehensiveness and accuracy.
Correspondingly, the invention also provides a composite insulator mandrel crisp breakage simulation test system which comprises a test box, an ultrasonic atomizer, a control host, an infrared camera, air conditioning equipment, leakage current detection equipment and a fan, wherein the test box is connected with the control host;
the test box is used for preventing the composite insulator core rod sample, is provided with an inlet and is in sealed communication with an output port of the ultrasonic atomizer;
the ultrasonic atomizer receives a control command of the control host to work, atomizes the saline water with set conductivity and then injects the atomized saline water into the test chamber;
the voltage generator is used for receiving a control command of the control host and applying a test voltage to the composite insulator core rod;
the infrared camera is used for acquiring image information and temperature information of the composite insulator core rod sample after voltage is applied to the composite insulator core rod sample and outputting the image information and the temperature information to the control host; the infrared camera can be used for testing the temperature information and the infrared image information of the composite insulator core rod sample;
the air conditioning equipment is used for receiving a control command of the control host and adjusting the temperature in the test sample to reach a set value;
the fan is arranged in the test chamber and used for accelerating the gas flow in the test chamber to make the atomized saline water fully distributed in the test chamber;
the leakage current detection equipment is used for detecting the leakage current state of the composite insulator core rod sample and outputting the leakage current state to the control host;
and the control host is used for outputting control instructions to the voltage generator, the ultrasonic atomizer, the air conditioning equipment and the fan, and receiving and processing detection information output by the infrared camera, the temperature sensor and the leakage current detection equipment.
The voltage generator comprises a voltage regulator, a transformer and the like, wherein the voltage regulator is used for regulating input voltage, the transformer is used for regulating voltage, the voltage regulator receives a control command output by the control host machine for regulating voltage, the voltage regulator adopts the conventional alternating current voltage regulator, a specific circuit of the current detection equipment is shown in figure 4, and a digital oscilloscope is further arranged in the current detection equipment; the signal cable W1 collected signal can also be connected with an oscilloscope for detecting the current transformation state, the test box adopts the existing transparent test box, the infrared camera is convenient for detecting, for the convenience of voltage recording, the voltage generated by the voltage generator can be loaded to the insulator core rod directly through the cable, and can also be loaded through the electrode and the copper plate, as shown in figure 3.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. A composite insulator core rod breakage simulation test method is characterized by comprising the following steps: the method comprises the following steps:
s1, cleaning and pretreating a composite insulator core rod sample;
s2, placing the cleaned and pretreated composite insulator core rod sample in a closed test box, and injecting atomized corrosive solution with the conductivity being more than or equal to 100 mu S/cm into the test box, wherein the corrosive solution comprises saline water and nitric acid solution;
s3, after the test box is filled with atomized brine, applying voltage to the composite insulator core rod sample by a voltage generator;
s4, when the applied voltage reaches the set time, closing the voltage generator, detecting the temperature of the composite insulator core rod sample and acquiring image information of the insulator core rod sample;
s5, judging whether the temperature change value of the insulator core rod sample is larger than a set value or not, if so, entering the step S6; or: judging whether the insulating core rod sample has fracture or electric corrosion or not according to the image information of the insulator core rod sample, or: judging whether the insulating core rod sample has failure or internal carbonization through the leakage current, if so, entering the step S6, otherwise, changing test parameters including the voltage value applied by a voltage generator, the conductivity of the saline water or the pH value of the saline water, and returning to the step S3;
and S6, recording parameters meeting the requirements of the brittle failure process of the insulator core rod sample at present.
2. The composite insulator mandrel breakage simulation test method according to claim 1, characterized in that: in step S2, the conductivity of the brine is confirmed according to the following method:
3. The composite insulator mandrel breakage simulation test method according to claim 1, characterized in that: in step S3, the applied voltage of the voltage generator is determined according to the following method:
4. The composite insulator mandrel breakage simulation test method according to claim 1, characterized in that: in step S1, the cleaning pretreatment of the composite insulator core rod sample includes:
cleaning a composite insulator core rod sample by adopting ethanol;
standing the cleaned composite insulator core rod sample in a dust-free environment for 24 hours;
and testing the resistivity and the dielectric characteristic parameters of the composite insulator core rod sample and recording.
5. The composite insulator mandrel breakage simulation test method according to claim 1, characterized in that: the voltage generator is used for applying voltage to the composite insulator core rod sample and specifically comprises the following steps:
the voltage generator directly applies voltage to the two axial ends of the composite insulator core rod sample, the voltage generator radially applies voltage to the composite insulator core rod sample through the electrodes, and the voltage generator applies voltage to the two axial ends of the composite insulator core rod sample through the electrodes.
6. The utility model provides a composite insulator plug crisp analogue test system which characterized in that: the device comprises a test box, an ultrasonic atomizer, a control host, an infrared camera, air conditioning equipment, leakage current detection equipment and a fan;
the test box is used for preventing the composite insulator core rod sample, is provided with an inlet and is in sealed communication with an output port of the ultrasonic atomizer;
the ultrasonic atomizer receives a control command of the control host to work, atomizes the saline water with set conductivity and then injects the atomized saline water into the test chamber;
the voltage generator is used for receiving a control command of the control host and applying a test voltage to the composite insulator core rod;
the infrared camera is used for acquiring image information and temperature information of the composite insulator core rod sample after voltage is applied to the composite insulator core rod sample and outputting the image information and the temperature information to the control host;
the air conditioning equipment is used for receiving a control command of the control host and adjusting the temperature in the test sample to reach a set value;
the fan is arranged in the test chamber and used for accelerating the gas flow in the test chamber to make the atomized saline water fully distributed in the test chamber;
the leakage current detection equipment is used for detecting the leakage current state of the composite insulator core rod sample and outputting the leakage current state to the control host;
and the control host is used for outputting control instructions to the voltage generator, the ultrasonic atomizer, the air conditioning equipment and the fan, and receiving and processing detection information output by the infrared camera, the temperature sensor and the leakage current detection equipment.
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| CN202011282842.2A CN112379233A (en) | 2020-11-16 | 2020-11-16 | Composite insulator brittle fracture simulation test method and simulation test system thereof |
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| CN202011282842.2A CN112379233A (en) | 2020-11-16 | 2020-11-16 | Composite insulator brittle fracture simulation test method and simulation test system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960422A (en) * | 2021-10-15 | 2022-01-21 | 广东电网有限责任公司 | Device and method for testing water resistance of composite insulator sheath-core rod interface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872056A (en) * | 2018-08-09 | 2018-11-23 | 中国电力科学研究院有限公司 | The device that insulator is corroded for simulated environment |
| CN110554268A (en) * | 2019-10-14 | 2019-12-10 | 华北电力大学 | composite insulator mandrel aging state testing method and device based on moisture absorption amount |
| CN110672956A (en) * | 2019-10-14 | 2020-01-10 | 华北电力大学 | Composite insulator temperature rise judging method |
| CN111650111A (en) * | 2020-06-15 | 2020-09-11 | 重庆大学 | Method and system for electrified accelerated pulverization of composite silicon rubber material in salt spray environment |
-
2020
- 2020-11-16 CN CN202011282842.2A patent/CN112379233A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872056A (en) * | 2018-08-09 | 2018-11-23 | 中国电力科学研究院有限公司 | The device that insulator is corroded for simulated environment |
| CN110554268A (en) * | 2019-10-14 | 2019-12-10 | 华北电力大学 | composite insulator mandrel aging state testing method and device based on moisture absorption amount |
| CN110672956A (en) * | 2019-10-14 | 2020-01-10 | 华北电力大学 | Composite insulator temperature rise judging method |
| CN111650111A (en) * | 2020-06-15 | 2020-09-11 | 重庆大学 | Method and system for electrified accelerated pulverization of composite silicon rubber material in salt spray environment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960422A (en) * | 2021-10-15 | 2022-01-21 | 广东电网有限责任公司 | Device and method for testing water resistance of composite insulator sheath-core rod interface |
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Application publication date: 20210219 |