CN109917239A - A kind of measuring system and method for silicon rubber filth surface-discharge transmitting temperature - Google Patents
A kind of measuring system and method for silicon rubber filth surface-discharge transmitting temperature Download PDFInfo
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- CN109917239A CN109917239A CN201910153837.2A CN201910153837A CN109917239A CN 109917239 A CN109917239 A CN 109917239A CN 201910153837 A CN201910153837 A CN 201910153837A CN 109917239 A CN109917239 A CN 109917239A
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Abstract
It discharges the invention discloses a kind of silastic surface and transmits the measuring system of temperature, system includes 220V AC power source, filter, pressure regulator, transformer, temperature sensor, temperature data recorder, computer and silicon rubber test product to be measured.Temperature sensor and temperature data recorder are used for temperature collection data；Computer is for tracking temperature trend；220V AC power source, filter, pressure regulator and transformer constitute simulative discharge device, for simulating filthy silicon rubber insulation surface-discharge.Temperature sensor uses thermocouple temperature sensor；Thermocouple temperature sensor includes nuditing wire and fiberglass insulation；Silicon rubber test product to be measured includes electric discharge side surface and absence of discharge side surface；The electric discharge side surface includes electrode, the area He Gan, filthy area.The present invention is conducive to understand absence of discharge side temperature profile when silastic surface electric discharge, can be realized the implanted on-line real time monitoring of composite insulator.
Description
Technical field
The present invention relates to power transmission and transforming equipment monitoring fields more particularly to a kind of silicon rubber filth surface-discharge to transmit temperature
Measuring system and method.
Background technique
Insulator is one of the indispensable equipment in electric system, needs to monitor when the temperature of insulator is run
Important parameter.The composite insulator of transmission line of electricity is run outdoors for a long time, not can avoid the influence by factor of natural environment, example
Dust, water or moisture in such as atmosphere.And the composite insulator decreasing insulating being contaminated, it can lead under certain condition
Flashover voltage reduction, fitting corrosion are caused, pollution flashover occurs.
Traditional insulator temperature measurement technology is mainly infrared imaging method, carries thermal infrared imager by unmanned plane and carries out
Line walking detection technique is widely used, but the detection technique predominantly detect be outer surface of insulator temperature, Er Qiejian
Solar radiation, adjacent equipment radiation and the influence of environment temperature are also suffered from during surveying.It is a large amount of by domestic and foreign scholars
Research, existing technical thought can summarize are as follows: from inside to outside, by extrapolation.It is from inside to outside interior insulator, including core
Stick, plug and sheath interface etc. are abnormal adstante febre, the temperature rise of caused outer surface of insulator；By in extrapolation, that is, adopting
After the temperature rise for measuring outer surface of insulator with non-contact method, infer that interior insulator is abnormal fever, and then take
Measure.The absence of discharge side temperature profile of silastic material when surface of composite insulator is discharged are as follows: when part occurs for composite insulator
When electric discharge and flashover, the temperature on insulator umbrella and umbrella diameter surface is increased because of electric arc and leakage current.The inside of insulator
Temperature rise is also possible to be caused by external factor, caused internal temperature rise when especially electric discharge or flashover occur, but about insulation
Sub- sheath is still not clear with temperature rise relationship of the plug interface in electric discharge or flashover.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of silicon rubber filth surface-discharges to transmit temperature
Measuring system.The present invention by silicon rubber plate absence of discharge side surface paste several K-type thermocouple temperature sensors come
Simulate silastic surface electric discharge, while directly temperature rise of the measurement silicon rubber absence of discharge side surface because of electric discharge generation.The present invention passes through
Composite silicone rubber isolator material is studied in electric discharge or flashover as the internal and external temperature relationship of temperature transfer medium, is determined compound
The absence of discharge side temperature profile and influence factor of silastic material when insulator contamination surface-discharge.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of measuring system of silicon rubber filth surface-discharge transmitting temperature, including 220V AC power source, filter, pressure regulation
Device, transformer, temperature sensor, temperature data recorder, computer and silicon rubber test product to be measured.
The temperature sensor and temperature data recorder are used for temperature collection data；
The computer is for tracking temperature trend；
The 220V AC power source, filter, pressure regulator and transformer constitute simulative discharge device, for simulating filthy silicon
Rubber-covered surface-discharge.
The temperature sensor uses thermocouple temperature sensor；Thermocouple temperature sensor includes nuditing wire and glass
Fibrous covering.
The silicon rubber test product to be measured includes electric discharge side surface and absence of discharge side surface；The electric discharge side surface includes electricity
Pole, the area He Gan, filthy area.
Specifically, the size that thermocouple temperature sensor is corresponded to discharge side surface filth area, in absence of discharge side surface
It is pasted after being equally spaced.
Further, the thermocouple temperature sensor is pasted on silicon rubber absence of discharge side table using black insulating tape
Face fits closely thermocouple temperature sensor and absence of discharge side surface together；Heat dissipation can be reduced, heat transfer rate is speeded,
Reduce the influence of electric field.
Specifically, in the electric discharge side surface of the silicon rubber test product to be measured, using copper foil conductive tape as electrode；Using
Sodium chloride and kaolin are as the different pollution levels of coating imitation；The dry of certain area is reserved between unilateral electrode and filthy area
Area.
Further, the filthy area is rectangle or trapezoid area；Conducting wire exposed part is welded in copper foil conduction
On adhesive tape, pad is on the perpendicular bisector in filthy area.
Preferably, the material of the silicon rubber test product to be measured and the composite insulator of practical application is consistent, including but
It is not limited to room temperature vulcanized silicone rubber.
It discharges another object of the present invention is to provide a kind of silastic surface and transmits the measurement method of temperature.
Another object of the present invention can be achieved through the following technical solutions:
A kind of measurement method of silastic surface electric discharge transmitting temperature, specific steps include:
(1) silicon rubber test product to be measured is made, filthy area is set；
(2) temperature sensor is arranged on silicon rubber test product to be measured；
(3) by simulative discharge device, silicon rubber test product to be measured, temperature sensor, temperature data recorder and computer into
Row connection；
(4) temperature of room temperature and silicon rubber plate is measured before pressurization；
(5) increase voltage to target voltage, open video camera and timer, record data.
Specifically, the step (1) are as follows: the copper foil conductive tape for intercepting certain length is used as the two poles of the earth in filthy area, and will
Conducting wire exposed part is welded on copper foil conductive tape, and pad is on the perpendicular bisector in filthy area；Kaolin and sodium chloride are weighed,
It imports in the beaker equipped with distilled water and is configured to filthy solution；Filthy solution is uniformly smeared in filthy area, allows filthy drying, then is sprayed
Water dissolution.
Specifically, in the step (2), it is non-that thermocouple temperature sensor is arranged in by silicon rubber plate using insulating tape
Immediately below the filthy area of filthy area side.
Specifically, simulative discharge device includes 220V AC power source, filter, pressure regulator and transformer.
Specifically, the step (4) are as follows: after arranging temperature sensor opening temperature data logger record 1~
5min obtains silicon rubber plate reference temperature；Using thermometer measure room temperature.
Specifically, in the step (5), after increasing to target voltage, temperature data recorder records 1~5min, waits
Temperature maintains to stablize.
After temperature increases silicon rubber plate due to filthy surface-discharge, temperature data note is recorded by way of record screen
The absence of discharge side temperature change that record instrument acquires in real time, including temperature rising time, temperature peak moment and temperature decline the moment.It is logical
Cross the actual discharge situation of silicon rubber plate under videograph, including start the fragmentary starting the arc, shelf depreciation, flashover terminate.Respectively
Research is compared to the two, obtains the transmitting temperature rule of silicon rubber plate filth surface-discharge.
The present invention compared to the prior art, have it is below the utility model has the advantages that
The present invention is when learning surface of composite insulator electric discharge after the absence of discharge side temperature profile of silastic material, in conjunction with multiple
Close insulator implanted on-line real time monitoring technology, can conclude that composite insulator whether have occurred shelf depreciation or flashover with
And position when occurring.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of silastic surface electric discharge transmitting temperature measurement system in the embodiment of the present invention.
Fig. 2 is the arrangement schematic diagram in the filthy area of silicon rubber test product to be measured in the embodiment of the present invention, dry area and electrode.
Fig. 3 is arrangement schematic diagram of the temperature sensor in silicon rubber test product to be measured in the embodiment of the present invention.
Fig. 4 is a kind of specific flow chart of silastic surface electric discharge transmitting thermometry in the embodiment of the present invention.
In figure, 1-conducting wire, 2-copper foil conductive tapes, 3-dry areas, 4-filthy areas, 5-silicon rubber test products to be measured, 6-
Temperature sensor, 7-temperature sensor wires, 8-temperature sensor joints.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment
The schematic diagram of the measuring system of temperature is transmitted for a kind of silicon rubber filth surface-discharge as shown in Figure 1, system includes
220V AC power source, filter, pressure regulator, transformer, temperature sensor 6, temperature data recorder, computer and silicon rubber to be measured
Glue test product 5.
The temperature sensor and temperature data recorder are used for temperature collection data；
The computer is for tracking temperature trend；
The 220V AC power source, filter, pressure regulator and transformer constitute simulative discharge device, for simulating filthy silicon
Rubber-covered surface-discharge.
The temperature sensor uses thermocouple temperature sensor；Thermocouple temperature sensor includes nuditing wire and glass
Fibrous covering.
It is illustrated in figure 2 the schematic diagram of silicon rubber test product to be measured in the present embodiment, the silicon rubber test product to be measured uses room
Temperature vulcanizable silicone rubber flat plate, including electric discharge side surface and absence of discharge side surface；The electric discharge side surface includes electrode, filthy area 4
With dry area 3.
As shown in figure 3, in the present embodiment, K-type thermocouple temperature sensor is corresponded to discharge side surface filth area
Size is pasted after absence of discharge side surface is equally spaced.
In the present embodiment, the top diameter 1.5mm of the K-type thermocouple temperature sensor, length 5m are exhausted using black
Edge tape-stripping is fitted tightly over K-type thermocouple temperature sensor with absence of discharge side surface in silicon rubber absence of discharge side surface
Together；Heat dissipation can be reduced, heat transfer rate is speeded, reduces the influence of electric field.
In the present embodiment, using copper foil conducting resinl 2 with as electrode；It is imitated using sodium chloride and kaolin as coating
Different pollution levels；The area 1cm Kuan Gan is reserved between unilateral electrode and filthy area.
Further, the filthy area is trapezoid area；1 exposed part of conducting wire is welded on copper foil conductive tape,
And pad is on the perpendicular bisector in filthy area.
It is illustrated in figure 4 a kind of flow chart of the measurement method of silastic surface electric discharge transmitting temperature, specific steps include:
(1) silicon rubber test product to be measured is made, filthy area is set；
Specifically, the copper foil conductive tape for intercepting certain length is used as the two poles of the earth in filthy area, and conducting wire exposed part is welded
It is connected on copper foil conductive tape, pad is on the perpendicular bisector in filthy area；Kaolin and sodium chloride are weighed, imports and distilled water is housed
Beaker in be configured to filthy solution；Filthy solution is uniformly smeared in filthy area, allows filthy drying, then dissolution of spraying water.
(2) temperature sensor is arranged on silicon rubber test product to be measured；
Specifically, thermocouple temperature sensor is arranged in the dirt of the non-filthy area side of silicon rubber plate using insulating tape
Immediately below dirty area.
(3) by simulative discharge device, silicon rubber test product to be measured, temperature sensor, temperature data recorder and computer into
Row connection；
In the present embodiment, the lead 7 of K-type thermocouple temperature sensor and connector 8 are connected with temperature data recorder.
(4) temperature of room temperature and silicon rubber plate is measured before pressurization；
In the present embodiment, the step (4) are as follows: opening temperature data logger records after arranging temperature sensor
1min obtains silicon rubber plate reference temperature；Using thermometer measure room temperature.
(5) increase voltage to target voltage, open video camera and timer, record data.
In the present embodiment, the step (5) are as follows: by control box increase voltage to target voltage, reach in 12s
10kV, pressing time maintain 1min.
After temperature increases silicon rubber plate due to filthy surface-discharge, temperature data note is recorded by way of record screen
The absence of discharge side temperature change that record instrument acquires in real time, including temperature rising time, temperature peak moment and temperature decline the moment.It is logical
Cross the actual discharge situation of silicon rubber plate under videograph, including start the fragmentary starting the arc, shelf depreciation, flashover terminate.Respectively
Research is compared to the two, obtains the transmitting temperature rule of silicon rubber plate filth surface-discharge.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of measuring system of silicon rubber filth surface-discharge transmitting temperature, which is characterized in that the system comprises 220V friendships
Galvanic electricity source, filter, pressure regulator, transformer, temperature sensor, temperature data recorder, computer and silicon rubber test product to be measured；
The temperature sensor and temperature data recorder are used for temperature collection data；
The computer is for tracking temperature trend；
The 220V AC power source, filter, pressure regulator and transformer constitute simulative discharge device, for simulating filthy silicon rubber
Insulating surface electric discharge；
The temperature sensor uses thermocouple temperature sensor；Thermocouple temperature sensor includes nuditing wire and glass fibre
Insulating layer；
The silicon rubber test product to be measured includes electric discharge side surface and absence of discharge side surface；The electric discharge side surface includes electrode, dirt
The area dirty area He Gan.
2. a kind of measuring system of silicon rubber filth surface-discharge transmitting temperature according to claim 1, which is characterized in that
The size that thermocouple temperature sensor is corresponded to discharge side surface filth area, pastes after absence of discharge side surface is equally spaced；
The thermocouple temperature sensor is pasted on silicon rubber absence of discharge side surface using black insulating tape, senses electric thermo-couple temperature
Device and absence of discharge side surface fit closely together.
3. a kind of measuring system of silicon rubber filth surface-discharge transmitting temperature according to claim 1, which is characterized in that
In the electric discharge side surface of the silicon rubber test product to be measured, using copper foil conductive tape as electrode；Using sodium chloride and kaolin
Different pollution levels are imitated as coating；The dry area of certain area is reserved between unilateral electrode and filthy area.
4. a kind of measuring system of silicon rubber filth surface-discharge transmitting temperature according to claim 3, which is characterized in that
The filth area is rectangle or trapezoid area；Conducting wire exposed part is welded on copper foil conductive tape, pad is in filth
On the perpendicular bisector in area.
5. a kind of measuring system of silicon rubber filth surface-discharge transmitting temperature according to claim 1, which is characterized in that
The material of the silicon rubber test product to be measured and the composite insulator of practical application is consistent, including but not limited to room temperature vulcanization silicon
Rubber.
6. a kind of measurement method of the silastic surface electric discharge transmitting temperature for realizing claim 1-5, which is characterized in that tool
Body step includes:
(1) silicon rubber test product to be measured is made, filthy area is set；
(2) temperature sensor is arranged on silicon rubber test product to be measured；
(3) simulative discharge device, silicon rubber test product to be measured, temperature sensor, temperature data recorder and computer are connected
It connects；
(4) temperature of room temperature and silicon rubber plate is measured before pressurization；
(5) increase voltage to target voltage, open video camera and timer, record data.
7. a kind of measurement method of silastic surface electric discharge transmitting temperature according to claim 6, which is characterized in that described
Step (1) are as follows: the copper foil conductive tape for intercepting certain length is used as the two poles of the earth in filthy area, and conducting wire exposed part is welded in copper
On foil conductive tape, pad is on the perpendicular bisector in filthy area；Kaolin and sodium chloride are weighed, the beaker that distilled water is housed is imported
In be configured to filthy solution；Filthy solution is uniformly smeared in filthy area, allows filthy drying, then dissolution of spraying water.
8. a kind of measurement method of silastic surface electric discharge transmitting temperature according to claim 6, which is characterized in that described
In step (2), thermocouple temperature sensor is arranged in the filthy area of the non-filthy area side of silicon rubber plate using insulating tape
Underface.
9. a kind of measurement method of silastic surface electric discharge transmitting temperature according to claim 6, which is characterized in that described
Step (4) are as follows: opening temperature data logger records 1~5min after arranging temperature sensor, obtains silicon rubber plate ginseng
Examine temperature；Using thermometer measure room temperature.
10. a kind of measurement method of silastic surface electric discharge transmitting temperature according to claim 6, which is characterized in that institute
It states in step (5), after increasing to target voltage, temperature data recorder records 1~5min, and waiting temperature maintains to stablize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153837.2A CN109917239B (en) | 2019-03-01 | 2019-03-01 | System and method for measuring discharge transfer temperature of silicone rubber polluted surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153837.2A CN109917239B (en) | 2019-03-01 | 2019-03-01 | System and method for measuring discharge transfer temperature of silicone rubber polluted surface |
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| CN109917239A true CN109917239A (en) | 2019-06-21 |
| CN109917239B CN109917239B (en) | 2020-11-24 |
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| CN201910153837.2A Active CN109917239B (en) | 2019-03-01 | 2019-03-01 | System and method for measuring discharge transfer temperature of silicone rubber polluted surface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835006A (en) * | 2021-09-24 | 2021-12-24 | 南方电网科学研究院有限责任公司 | Method and device for testing step temperature rise test of thermosetting epoxy insulating part and application |
| CN113984242A (en) * | 2021-11-09 | 2022-01-28 | 南方电网科学研究院有限责任公司 | Temperature field measuring method of three-pillar insulator |
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