CN108344519A - Measure the thermocouple method for arranging of high-voltage cable middle joint Axial Temperature Distribution - Google Patents
Measure the thermocouple method for arranging of high-voltage cable middle joint Axial Temperature Distribution Download PDFInfo
- Publication number
- CN108344519A CN108344519A CN201810084630.XA CN201810084630A CN108344519A CN 108344519 A CN108344519 A CN 108344519A CN 201810084630 A CN201810084630 A CN 201810084630A CN 108344519 A CN108344519 A CN 108344519A
- Authority
- CN
- China
- Prior art keywords
- thermocouple
- cable
- temperature distribution
- transition joint
- voltage cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
- G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
Abstract
The invention discloses a kind of thermocouple method for arranging measuring high-voltage cable middle joint Axial Temperature Distribution, for the axial difference of cable body and transition joint contact interface different location Temperature Distribution, to study the fixed point thermocouple method for arranging that its axial temperature changing rule is arranged.From thermocouple arrangement specific location selection with determination, the determination of temperature measuring point quantity, lead arrangement, the judgement of drilling depth, thermocouple it is specific arrange etc. various aspects start with, the Temperature Distribution of comprehensive measurement cable intermediate joint position everywhere, and reduce accidental error and constant error in a manner of repeating to test and be averaged, establish important experiment basis for the distribution of research Joint Temperature and the relationship of current-carrying capacity, interfacial pressure.
Description
Technical field
The present invention relates to the technical field that cable intermediate joint installation interface temperature measures, more particularly to a kind of measurement high pressures
The thermocouple method for arranging of cable body and transition joint interface Axial Temperature Distribution.
Background technology
Accelerate rapidly with the process of urbanization, the demand of the energy that current era utilizes the most extensively --- electric energy is substantially
Degree increases, therefore the power cable as electric energy carrier is also largely widely used in the power transmission network of city each to meet each family
Family, all trades and professions demand.Meanwhile comprehensive sharp increase of urban power consumption, to the peace of electric system especially cable run
Full continuous service brings increasingly serious test：The current-carrying capacity of the power cable of the same circuit improves year by year, and some even exceeds
The design upper limit, seriously affects the ordinary life of high-tension cable.And as the transition joint portion of power cable important component
Position, prolonged overlond running are allowed to the temperature of cable body contact interface be more than the long-term tolerable temperature allowed, excessively high
Temperature accelerate insulation ag(e)ing, reduce its electrical strength, cause insulating materials stress relaxation phenomenon, influence interfacial pressure intensity,
The service life for damaging intermediate joint of electric cable results even in interface breakdown and forms the safety accident of power cable when serious,
The safe operation for seriously endangering urban distribution network, causes the large area of system to collapse, causes irremediable loss.However, in reality
In the operation of border, most of cable run current-carrying capacity peak-valley difference is very big and longtime running is in low load condition, or even less than specified load
The half of flow causes the profligacy of cable resource, reduces the economy of cable operation.Therefore, it is necessary to fully slap
City transmission and distribution network real time execution situation is held, and cable temperature distribution is monitored on-line and calculated.
Current-carrying capacity of cable size and Temperature Distribution are closely bound up, and transition joint position is the junction of two cables, electricity
Cable layers of material is no longer continuous, is carried out different degrees of processing and docked.In addition, requirement of the transition joint due to function, different
Part material is not quite similar, therefore there is apparent Temperature Distribution difference in the axial direction in transition joint installation place.In previous axis
Into the research of Temperature Distribution, thermometric takes a little general using equidistant selection, the influence without excessively focusing on material；Meanwhile it leading
Temperature is the thermometric emphasis of research in the past, and interface temperature is often ignored.
Invention content
The shortcomings that it is an object of the invention to overcome the prior art and deficiency, provide a kind of measurement high-voltage cable middle joint
The thermocouple method for arranging of Axial Temperature Distribution, the method for arranging can measure transition joint place difference material with high precision from axial
Expect, the temperature at different structure interface, further obtain the temperature information of intermediate joint of electric cable position comprehensively, is follow-up study
Reliable measurement data basis is provided.
The purpose of the present invention is realized by the following technical solution：A kind of measurement high-voltage cable middle joint axial temperature point
The thermocouple method for arranging of cloth, includes the following steps：
As needed, selection meets installation requirement and does not install the cable end piece of transition joint；According to transition joint and electricity
The difference of each position composed structure of cable ontology and material, the position that transition joint is contacted with cable body and the way of contact, needle
To each, test position is respectively set in different contact points；The same test position connects in cable body and transition joint respectively
Touch interface, cable conductor surface respectively one group of temperature measuring point of setting.
Preferably, position selection is measured at the intermediate position of different structure and material contacting portion.
Preferably, specific test position arrangement is as follows：Position 1：Stress cone and external shield interface middle part are same；Position 2：It answers
Power is bored and cable body interfacial dielectric layer middle part；Position 3：Transition joint insulating layer and cable body interfacial dielectric layer middle part；Position
Set 4：Cable body insulating layer and shielded-plate tube interface middle part；Position 5：In transition joint shielded-plate tube and shield semiconductors bed boundary
Portion.
Preferably, one group of temperature measuring point position of each test position is located at same cross section, on cross section symmetrically
Distribution；The temperature measuring point distribution of different test positions is identical, and the same temperature measuring point of different test positions is located on same axial direction line.
Preferably, one group temperature measuring point of the cable body with transition joint interface and one group of temperature measuring point set by conductive surface
Position mutually staggers certain angle.
Preferably, it is punched to conductive surface on cable body surface, thermocouple is placed by punching.
Preferably, thermocouple lead-out wire is placed by the sulculus that cross section is rectangle on cable body surface, and be external to
On the transacter of Exterior cable.
Specifically, being drawn after making certain turning at every lead measurement point.
Specifically, sulculus needs to dig the end positions of transition joint installation always, and there is certain exceed.
Preferably, one group of temperature measuring point of each test position includes 3 temperature measuring points.
If specifically, in terms of cable body cross-wise direction angle, it is arranged in cable body and transition joint interface temperature measuring point
In 12,4 and 8 o'clock position；Then it is arranged in 2,6 and 10 o'clock position in conductive surface；Three lead-out wire sulculuses are set, respectively position
In 1,5 and 9 o'clock position, 12,2 o'clock position thermocouple share 1 o'clock position wire casing, 4,6 o'clock position thermocouple share at 5 points
Clock position wire casing, 8,10 o'clock position thermocouple share 9 o'clock position wire casing.
Preferably, the thermocouple lead-out wire on same axis, which summarizes, is placed on same sulculus, bands together；
It after lead-out wire is placed on sulculus, is uniformly filled between the gap of sulculus using epoxy mud, it is desirable that surface is smooth flat
Whole and height may not exceed cable outer surface.
Preferably, for being placed on the thermocouple of copper conductor surface：It prejudges the specific depth of drilling and is carried out with thermocouple
It compares, it is ensured that thermocouple can smoothly contact copper conductor；Thermocouple is placed in hole bottom, is then inserted into hole appropriately sized
Bad conduction material reduces inner air content；The gap in hole, fixed thermocouple are filled up with epoxy mud.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
The present invention is directed to the axial difference of cable body and transition joint contact interface different location Temperature Distribution, for research
Its axial temperature changing rule and the fixed point thermocouple method for arranging being arranged.Select and determine from thermocouple arrangement specific location,
The determination of temperature measuring point quantity, lead arrangement, the judgement of drilling depth, thermocouple it is specific arrangement etc. various aspects start with, comprehensive survey
The Temperature Distribution of amount cable intermediate joint position everywhere, and reduce accidental error in a manner of repeating to test and be averaged and inherently miss
Difference establishes important experiment basis for the distribution of research Joint Temperature and the relationship of current-carrying capacity, interfacial pressure.
Description of the drawings
Fig. 1 is that schematic diagram is arranged in 5 positions of interface in embodiment thermocouple.
Fig. 2 is embodiment thermocouple arrangement cross-sectional.
Fig. 3 is embodiment thermocouple lead arrangement schematic diagram.
Specific implementation mode
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 1
For the distribution of comprehensive analysis temperature and current-carrying capacity, the relationship of interfacial pressure, the present embodiment provides a kind of same section two
The method of layer arrangement thermometric.Since T-type thermoelectricity pair-point thermometric is had excellent performance, precision is high, arrangement is convenient, it is chosen as temperature transducers
Device.
When carrying out cable body and transition joint contact interface humid test, thermocouple is surveyed simultaneously because light easy to operate
Accuracy of measurement can meet again needed for research, often be used as thermometric preferred, and to cable intermediate joint, axially and radially different location carries out
Point is surveyed, more fully measured into trip temperature entire cable intermediate joint position from the inside to surface.
In cable body and transition joint interface, due to transition joint and each position composed structure of cable body and material
It is not quite similar, and the position contacted with cable body and the way of contact have differences each other, therefore the boundary of different parts
Face Temperature Distribution will be different.When power cable ontology is modeled with the hot road of transition joint contact interface, calculates, have to simplify
It is many to assume and ignore condition, wherein assuming that temperature is in axis between cable body and transition joint contact interface same material and structure
Consistent upwards, every section of material relies only on a section thermometric and can show that transition joint and cable body contact surface are whole
Temperature information.
Based on above theory hypothesis, it must meet to maximum likelihood this condition during the experiment, therefore select
Measurement point select at the intermediate position of different structure and material contacting portion, as shown in Fig. 1.Position 1：Stress cone and external screen
It covers in the middle part of interface, is the conical surface at this external shield, it is different from the shape of other faces；Position 2：Stress cone and cable body insulation stratum boundary
Middle face；Position 3：Transition joint insulating layer and cable body interfacial dielectric layer middle part；Position 4：Cable body insulating layer and screen
Cover area within a jurisdiction Middle face；Position 5：Transition joint shielded-plate tube and shield semiconductors bed boundary middle part.Each position that measures is respectively in electricity
3 temperature measuring points are arranged with transition joint contact interface and cable copper conductor surface in cable ontology, for measuring each structure of transition joint
The temperature of different location between cable body, to obtain the temperature information at entire cable intermediate joint position more fully hereinafter.
On the other hand, also allow for occurring in Power Cable Running Process temperature it is excessively high in the case of, by temperature measurement information
Analysis it is faster accurately show that the position goes wrong in position axially and radially, and contribute to positioning adjust in indirectly
Head is with the cooperation of cable body to solve the problems, such as.
Specifically, a kind of thermocouple method for arranging measuring high-voltage cable middle joint Axial Temperature Distribution, including it is following
Step：
1, as needed, selection meets installation requirement and does not install the cable end piece of transition joint, according to transition joint
Size and corresponding installation site, determine thermocouple position.It needs the position measured one to share at 5, corresponds to each respectively
The centre position of interface type is marked with pastel in corresponding position.
2, to avoid the temperature distributing disproportionation caused by being unevenly distributed of cable conductor internal electric field the case where, and reduce
Since various factors leads to the accidental error being likely to occur in measuring, at 5, measurement position carries out repetition experiment and (avoids idol respectively
Right error is separated by 120 ° of arrangements, 3 points in same section)；3 positions are respectively set on same class interface positioned at same crosscutting
Face, 3 positions are answered symmetrical, but cable body and transition joint interface should be mutually wrong with the position set by copper conductor surface
It opens, to reduce due to leading to temperature difference to the destruction of cable body.If in terms of cable body cross-wise direction angle, in cable sheet
Body is arranged with transition joint interface in 12,4 and 8 o'clock position；Then it is arranged in 2,6 and 10 o'clock position, such as in copper conductor surface
Shown in attached drawing 2.
3, thermocouple lead-out wire is placed by the method for digging sulculus, and rationally designs sulculus distribution and reduces to cable body
Damage.10 groups of thermocouples noted earlier are arranged in altogether on 6 axial lines, and every 5 different types of measurement point positions are in same axis
To on line.It is also arranged in unified axial line as possible in order to which lead does not destroy structures, the lead-out wires such as cable body insulation too much
On.Every 10 different types of measurement point lead-out wires are located on same axial direction line, be respectively 5 inhomogeneity points on interface and
5 inhomogeneity points on conductor.Therefore three lead-out wire sulculuses are needed altogether, are located at 1,5 and 9 o'clock position.12,2 points
Clock position thermocouple share 1 o'clock position wire casing, 4,6 o'clock position thermocouple share 5 o'clock position wire casing, 8,10 o'clock position
Thermocouple shares 9 o'clock position wire casing.
It is drawn after making certain turning at every lead measurement point, as shown in Fig. 3.
It to place thermocouple and lead-out wire, and is external on the transacter of Exterior cable, for collecting and dividing
Eutectoid temperature measurement data, need to dig out a cross section in cable body insulating layer and shielded layer along lead channels with pocket knife be
The sulculus of rectangle.It is 3mm that the width of sulculus and depth, which is arranged,.It is noted that preventing to cause to draw in non-channel superficial layer when cutting
Trace, and not have protrusion in cutting corner, a small smooth excessiveness angle can be suitably formed.Minor groove needs to dig always
The end positions installed to transition joint, and have exceeding for 1-2cm, facilitate the arrangement of lead.Heat on same axis
Galvanic couple lead-out wire, which summarizes, to be placed on same sulculus, is banded together and is avoided loosely falling.Lead-out wire is being placed on sulculus
It after upper, is uniformly filled between the gap of sulculus using epoxy mud, it is desirable that surface is smooth and height may not exceed electricity
Cable outer surface avoids causing sensor lead-out wire to fall off due to factors such as vibrations in cable intermediate joint installation process, simultaneously
The installation of transition joint will not be hindered again.
4, the physical aspect of bits is spat with drilling and drilling dynamics judges the depth location punched, determine temperature measuring point.It is needing
It measures and is punched to conductive surface with hand drill at copper conductor temperature, the physical aspect of bits is spat with drilling and drilling dynamics judgement is beaten
The depth location in hole, determines temperature measuring point.It is aubergine powder and when by very big resistance when spitting bits, bore position has arrived at conductor
Position.There are one important points for attention when controlling depth, after judging to have arrived at required temperature measuring point, to repeat to bore for several times,
Ensure that the bottom in hole does not have talus accumulation, otherwise may cause the arrangement of follow-up thermocouple that can not reach bottom temperature measuring point.
5, the method for arranging thermocouple, including placed-depth judgement, effective plug-hole, fixed requirement etc..When all prepare just
The final arrangement of thread, thermocouple is most important to entire follow-up thermometric experiment.For being placed on cable body and transition joint circle
Lead placement is first filled up epoxy mud in the slot that depth is 3mm and tentatively fixed, then by thermocouple by the thermocouple at face later
Probe tip maintains an equal level with measure interface, and fixation is filled up in remaining gap with epoxy mud, notices that all mounting arrangements interfaces cannot be high
In the original height of cable body.For being placed on the thermocouple of copper conductor surface, be not suitable for strong stress since thermocouple is relatively soft,
Therefore before arranging thermocouple, first the specific depth of drilling is prejudged with the hard object such as elongated iron wire and be compared with thermocouple, really
Thermal protection galvanic couple can smoothly contact copper conductor, and lead is drawn from hole then and is placed in sulculus.To reduce the air of bore inner
Convection current generates certain influence to the measurement of temperature, so appropriately sized bad conduction material is inserted into after being placed in thermocouple
(such as toothpick) reduces inner air content, weakens convection current.Then the gap in hole is filled up with epoxy mud, prevents experimentation
Middle external force involves the floating for causing temperature measuring point, causes the data for measuring mistake.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (10)
1. measuring the thermocouple method for arranging of high-voltage cable middle joint Axial Temperature Distribution, which is characterized in that including following step
Suddenly：
As needed, selection meets installation requirement and does not install the cable end piece of transition joint；According to transition joint and cable sheet
The difference of each position composed structure of body and material, the position that transition joint is contacted with cable body and the way of contact, for every
Test position is respectively set in the different contact point of kind；The same test position contacts boundary in cable body and transition joint respectively
One group of temperature measuring point is respectively arranged in face, cable conductor surface.
2. the thermocouple method for arranging according to claim 1 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, measures position selection at the intermediate position of different structure and material contacting portion.
3. the thermocouple method for arranging according to claim 1 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, specific test position arrangement is as follows：Position 1：Stress cone and external shield interface middle part are same；Position 2：Stress cone with
In the middle part of cable body interfacial dielectric layer；Position 3：Transition joint insulating layer and cable body interfacial dielectric layer middle part；Position 4：Electricity
Cable ontology insulating layer and shielded-plate tube interface middle part；Position 5：Transition joint shielded-plate tube and shield semiconductors bed boundary middle part.
4. the thermocouple method for arranging according to claim 1 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, one group of temperature measuring point position of each test position is located at same cross section, is uniformly and symmetrically distributed on cross section；No
Identical with the distribution of the temperature measuring point of test position, the same temperature measuring point of different test positions is located on same axial direction line.
5. the thermocouple method for arranging according to claim 1 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, one group temperature measuring point of the cable body with transition joint interface and one group of temperature measuring point position phase set by conductive surface
Mutually be staggered certain angle.
6. the thermocouple method for arranging according to claim 1 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, is punched to conductive surface on cable body surface, thermocouple is placed by punching；Pass through cross on cable body surface
The sulculus of rectangular cross-section places thermocouple lead-out wire, and is external on the transacter of Exterior cable；Every lead is certainly
Measurement point is drawn after making certain turning；Sulculus needs to dig the end positions of transition joint installation always, and has certain
Exceed.
7. the thermocouple method for arranging according to claim 1 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, one group of temperature measuring point of each test position includes 3 temperature measuring points.
8. the thermocouple method for arranging according to claim 7 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, in terms of cable body cross-wise direction angle, is arranged 12,4 and 8 in cable body and transition joint interface temperature measuring point
O'clock position；Then it is arranged in 2,6 and 10 o'clock position in conductive surface；Three lead-out wire sulculuses are set, are located at 1,5 and 9
O'clock position, 12,2 o'clock position thermocouple share 1 o'clock position wire casing, 4,6 o'clock position thermocouple share 5 o'clock the position line
Slot, 8,10 o'clock position thermocouple share 9 o'clock position wire casing.
9. the thermocouple method for arranging according to claim 6 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, the thermocouple lead-out wire on same axis, which summarizes, to be placed on same sulculus, is banded together；Draw in handle
After outlet is placed on sulculus, be uniformly filled between the gap of sulculus using epoxy mud, it is desirable that surface it is smooth and
Height may not exceed cable outer surface.
10. the thermocouple method for arranging according to claim 6 for measuring high-voltage cable middle joint Axial Temperature Distribution,
It is characterized in that, for being placed on the thermocouple of conductive surface：It prejudges the specific depth of drilling and is compared with thermocouple, it is ensured that
Thermocouple can smoothly contact conductor；Thermocouple is placed in hole bottom, appropriately sized bad heat conduction object is then inserted into hole
Matter reduces inner air content；The gap in hole, fixed thermocouple are filled up with epoxy mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810084630.XA CN108344519B (en) | 2018-01-29 | 2018-01-29 | Thermocouple arrangement method for measuring axial temperature distribution of high-voltage cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810084630.XA CN108344519B (en) | 2018-01-29 | 2018-01-29 | Thermocouple arrangement method for measuring axial temperature distribution of high-voltage cable intermediate joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108344519A true CN108344519A (en) | 2018-07-31 |
| CN108344519B CN108344519B (en) | 2020-06-19 |
Family
ID=62961725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810084630.XA Active CN108344519B (en) | 2018-01-29 | 2018-01-29 | Thermocouple arrangement method for measuring axial temperature distribution of high-voltage cable intermediate joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108344519B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855443A (en) * | 2015-12-09 | 2017-06-16 | 上海电缆研究所有限公司 | Cable intermediate joint conductor temperature measurement structure |
| CN109975353A (en) * | 2019-04-08 | 2019-07-05 | 中国科学技术大学 | A kind of high voltage power cable core heating control and internal and external temperature field coupling evolution mechanism study platform |
| CN111239532A (en) * | 2020-03-11 | 2020-06-05 | 远东电缆有限公司 | Copper-aluminum cable current-carrying capacity and temperature rise testing method |
| CN111693801A (en) * | 2020-05-09 | 2020-09-22 | 中国电力科学研究院有限公司 | System and method for measuring temperature rise characteristic of power cable in complex microenvironment |
| CN113237587A (en) * | 2021-02-02 | 2021-08-10 | 国网电力科学研究院武汉南瑞有限责任公司 | Cable joint interface pressure measurement system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004085355A (en) * | 2002-08-27 | 2004-03-18 | Hitachi Cable Ltd | Temperature measurement device and temperature monitoring system |
| CN102620851A (en) * | 2012-04-10 | 2012-08-01 | 苏州易邦顿信息科技有限公司 | Miniature device for measuring temperature of intermediate joint of power cables |
| CN204855026U (en) * | 2015-07-16 | 2015-12-09 | 河北省电力勘测设计研究院 | A distributed sensor arrangement structure for cable intermediate head temperature measurement |
| CN105698963A (en) * | 2016-03-25 | 2016-06-22 | 中国电力科学研究院 | Cable conductor temperature measurement system based on acoustic surface wave temperature sensor and algorithm thereof |
-
2018
- 2018-01-29 CN CN201810084630.XA patent/CN108344519B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004085355A (en) * | 2002-08-27 | 2004-03-18 | Hitachi Cable Ltd | Temperature measurement device and temperature monitoring system |
| CN102620851A (en) * | 2012-04-10 | 2012-08-01 | 苏州易邦顿信息科技有限公司 | Miniature device for measuring temperature of intermediate joint of power cables |
| CN204855026U (en) * | 2015-07-16 | 2015-12-09 | 河北省电力勘测设计研究院 | A distributed sensor arrangement structure for cable intermediate head temperature measurement |
| CN105698963A (en) * | 2016-03-25 | 2016-06-22 | 中国电力科学研究院 | Cable conductor temperature measurement system based on acoustic surface wave temperature sensor and algorithm thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐涛等: "110 kV电缆线路中间接头载流量实验研究及分析", 《绝缘材料》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855443A (en) * | 2015-12-09 | 2017-06-16 | 上海电缆研究所有限公司 | Cable intermediate joint conductor temperature measurement structure |
| CN109975353A (en) * | 2019-04-08 | 2019-07-05 | 中国科学技术大学 | A kind of high voltage power cable core heating control and internal and external temperature field coupling evolution mechanism study platform |
| CN111239532A (en) * | 2020-03-11 | 2020-06-05 | 远东电缆有限公司 | Copper-aluminum cable current-carrying capacity and temperature rise testing method |
| CN111693801A (en) * | 2020-05-09 | 2020-09-22 | 中国电力科学研究院有限公司 | System and method for measuring temperature rise characteristic of power cable in complex microenvironment |
| CN111693801B (en) * | 2020-05-09 | 2023-05-12 | 中国电力科学研究院有限公司 | System and method for measuring temperature rise characteristics of power cable under complex microenvironment |
| CN113237587A (en) * | 2021-02-02 | 2021-08-10 | 国网电力科学研究院武汉南瑞有限责任公司 | Cable joint interface pressure measurement system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108344519B (en) | 2020-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108344519A (en) | Measure the thermocouple method for arranging of high-voltage cable middle joint Axial Temperature Distribution | |
| CN102495291A (en) | Impedance frequency response method for measuring corrosion state of grounding network of transformer substation | |
| CN108445363A (en) | A kind of city net cable insulation defect inspection method based on fringe field | |
| EP3312617B1 (en) | Method and device for testing a galvanic connection of a high-voltage condenser bushing assembly | |
| CN108414100A (en) | A kind of thermocouple optimization placement method for testing measurement cable body Wen Sheng | |
| WO2013101239A1 (en) | Increasing current carrying capability through direct liquid cooling of test contacts | |
| Joseph et al. | Numerical modelling, simulation and experimental validation of partial discharge in cross‐linked polyethylene cables | |
| CN105954652A (en) | Sheath grounding fault point locating method | |
| Abdelmalik | Influence of sinusoidal and square voltages on partial discharge inception in geometries with point‐like termination | |
| CN101424705B (en) | Probe column, wafer testing seat and wafer testing system | |
| CN110579286B (en) | Temperature measuring device of electric energy meter | |
| CN104425303A (en) | Method for measuring thickness of conductive layer | |
| EP3229032B1 (en) | Water tree testing method and water tree testing device | |
| CN205120516U (en) | A component for detecting steel structure body wearing and tearing volume | |
| EP2315010A1 (en) | Diagnostic method for oil-filled electric equipment, diagnostic device for implementing diagnostic method, and oil-filled electric equipment with built-in diagnostic device | |
| KR102155672B1 (en) | Ground rods made of carbon and having radial needles | |
| CN104183574A (en) | Semiconductor testing structure and a semiconductor testing method | |
| CN103809062A (en) | Electromigration test structure | |
| CN105988061B (en) | A kind of method of high voltage single-core cable protective layer fault location | |
| JP6602519B1 (en) | Semiconductor device, deterioration diagnosis device for semiconductor device, and deterioration diagnosis method for semiconductor device | |
| KR20030042607A (en) | Resistivity survey method and device | |
| CN103076498A (en) | Method of detecting conductivity of moist solid cable | |
| KR100738186B1 (en) | Apparatus for detecting quench of shield-layer in superconducting cable core | |
| CN204216039U (en) | A kind of electrostatic protector | |
| KR100521635B1 (en) | Apparatus for searching the principal earth plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |