CN109376487A - A kind of calculation method of high altitude localities GIS long bus structure temperature deformation - Google Patents
A kind of calculation method of high altitude localities GIS long bus structure temperature deformation Download PDFInfo
- Publication number
- CN109376487A CN109376487A CN201811472262.2A CN201811472262A CN109376487A CN 109376487 A CN109376487 A CN 109376487A CN 201811472262 A CN201811472262 A CN 201811472262A CN 109376487 A CN109376487 A CN 109376487A
- Authority
- CN
- China
- Prior art keywords
- bus structure
- temperature
- long bus
- gis
- gis long
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
Abstract
A kind of calculation method of high altitude localities GIS long bus structure temperature deformation, solve the problem of that traditional theory temperature deformation calculating linear expansion coefficient error is big and can not consider each feature geometries unit, cylinder blind flange force, bolt pretightening and concrete expansion power in GIS long bus structure.By providing one kind using bus drum surface temperature and each feature unit thermal deformation shift value as data basis, fit the synthesis thermal expansion coefficient of GIS long bus structure, using finite element software as the calculation method of the GIS long bus structure temperature deformation of the complete set of tool, it is finally reached and combines FEM calculation to predict that temperature deformation replaces the measurement of total station by temperature measurement.The temperature deformation situation of each feature geometries unit of GIS long bus structure is clearly showed, builds a station work and the even running after building a station for the initial stage design of GIS long bus structure, actual theoretical direction is provided.
Description
Technical field
The invention belongs to substation safety technical fields, and in particular to one kind is able to solve existing temperature deformation displacement theory
The problem of calculating process is difficult, data accuracy is poor and total station survey is cumbersome, time-consuming, fully considers GIS long bus knot
The temperature deformation situation of each feature unit in structure can provide practical theory for the even running of high altitude localities GIS device and refer to
The calculation method for the high altitude localities GIS long bus structure temperature deformation led.
Background technique
In recent years, GIS long bus structure obtains the use of large area in Qinghai Power Grid, and the Qinghai Power Grid to make strong mentions
Important hardware guarantee is supplied.Since Qinghai belongs to the big temperature difference area of High aititude, so in this special region meteorological condition
Under, the features such as GIS long bus structure exposes high failure rate, stability is poor, there is serious not acclimatized phenomenon.
To finding in the studying for a long period of time of GIS long bus structure, temperature deformation is to influence GIS long bus structure to work normally
One of principal element.Therefore, to the accurate evaluation of GIS long bus structure temperature deformation, facilitate the peace of GIS long bus structure
Full stable operation.However, can not accurately consider each geometrical characteristic list in GIS device during traditional Calculation of Thermal Deformation
Member can not also consider the factors such as the expansive force of cylinder blind flange force, bolt pretightening and concrete, be merely capable of according to cylinder material
Theoretical linear expansion coefficient and concrete theoretical linear expansion coefficient carry out one-dimensional linear theoretical calculation, seriously reduce GIS long
The accuracy of bus structure Calculation of Thermal Deformation.In addition, total station in GIS device measurement process, expends a large amount of manpower and object
Power.Therefore it is necessary to the temperature deformation calculation methods to existing high altitude localities GIS device to be improved.
Summary of the invention
The present invention addresses the above problem, and providing one kind, to be able to solve existing temperature deformation displacement theory calculating process tired
Difficult, the problem of data accuracy is poor and total station survey is cumbersome, time-consuming, fully consider each spy in GIS long bus structure
The temperature deformation situation for levying unit, can provide the High aititude of practical theoretical direction for the even running of high altitude localities GIS device
The calculation method of regional GIS long bus structure temperature deformation.
The technical scheme adopted by the invention is that: the calculation method of high altitude localities GIS long bus structure temperature deformation
Include the following steps:
Step 1: temperature measurement is carried out in GIS long bus structure drum surface, flange panel surface, the weather within 24 hours
It measures when temperature raises and reduces, and at least measures 5 times respectively；
Step 2: arranging prism apparatus at GIS long bus structure ring flange, the survey of prism location coordinate is carried out using total station
Amount, the measurement of total station and the measurement of temperature carry out simultaneously, with prism corresponding at a temperature of guarantee acquisition each time point
The accurate coordinates of device；
Step 3: choose any point-in-time temperature data lens seat corresponding with its be denoted as on the basis of point, by other times
Temperature and its corresponding prism coordinate points and datum mark carry out difference calculating；
Step 4: according to modified thermal expansion coefficient calculation formula:
In formula,L--- reference point location
dl--- the relative variation with reference point location
dT--- the relative variation with datum mark temperature
ΔT--- bulk temperature variable
γ--- weight coefficient
E--- elasticity modulus
It fits under the effect of cylinder blind flange force, bolt pretightening and concrete heat deformation expansion power, in GIS long bus structure
The comprehensive axial linear expansion coefficient of cylinder, ring flange and compensating unit；
Step 5: carrying out building for the GIS long bus structure geometrical model of 1:1 according to the result of selected datum mark total station survey
It is vertical, it imports finite element numerical simulation software and carries out grid dividing；
Step 6: linear expansion coefficient corresponding to geometrical model, the power such as elasticity modulus and Poisson's ratio in setting GIS long bus structure
Learn performance parameter；
Step 7: other temperature measurement results are interpolated into GIS long bus structure finite element model, as temperature boundary item
Part, other boundary conditions carry out reasonable set according to the mounting means of GIS long bus structure equipment；
It is calculated Step 8: solving, obtains the temperature deformation value of GIS long bus structure at different temperatures；
Step 9: calculating the weight coefficient under every kind of stress state according to result of finite elementγ；
Step 10: result of finite element and the measurement result of practical total station are compared, finite element model is calculated
Error range；
Step 11: utilizing established finite element model, in conjunction with in-site measurement temperature, corrects heating expansion computation formula and calculate
Comprehensive thermal expansion coefficient, carries out prediction calculating to the temperature deformation of GIS long bus structure.
The change in location measurement of each geometrical characteristic unit in the GIS long bus structure is by total station and rib
Mirror cooperation is realized.
The linear expansion coefficient of each be fitted acquisition of geometrical characteristic unit in the GIS long bus structure is in cylinder
Synthesis linear expansion coefficient under the factors collective effects such as blind flange force, bolt pretightening and concrete expansion deformation force.
The calculating process of the GIS long bus structure temperature deformation is realized by the method for finite element.
During the FEM calculation of the GIS long bus structure, without carrying out Calculation of Heat Transfer, but direct basis
The measurement temperature of each geometrical characteristic of GIS long bus structure carries out interpolation calculation.
During the temperature deformation of the GIS long bus structure calculates, amendment thermal expansion is found out using result of finite element
Weight coefficient in coefficient formulaγ。
During the temperature deformation of the GIS long bus structure calculates, the specific stress state of measure field is swollen using amendment heat
Swollen coefficient formula calculates comprehensive thermal expansion coefficient, and the method deformed in conjunction with finite element calculating temperature difference replaces the measurement of total station.
During the temperature deformation of the GIS long bus structure calculates, finite element calculating temperature difference is combined to become using temperature measurement
The method of shape replaces the measurement of total station.
Beneficial effects of the present invention: by providing one kind with bus drum surface temperature and each feature unit thermal change morpheme
Shifting value is data basis, the synthesis thermal expansion coefficient of GIS long bus structure is fitted, using finite element software as a set of complete of tool
The calculation method of whole GIS long bus structure temperature deformation is finally reached and combines the pre- thermometric of FEM calculation by temperature measurement
Difference deformation replaces the measurement of total station.The method that this method combines total station displacement measurement using temperature measurement, accurately finds out GIS
The synthesis linear expansion coefficient of each feature geometries unit in long bus structure is calculated, it is contemplated that GIS using the method for finite element
Each geometrical characteristic unit, bolt pretightening, cylinder blind flange force, concrete expansion power and each feature in long bus structure
Frictional force between geometric units；And can fully consider influence of the model geometric size to temperature deformation result, to greatest extent
Improve the accuracy that GIS long bus structure temperature deformation calculates.Meanwhile the powerful after-treatment system of FEM calculation can be clear
The temperature deformation situation for showing each feature geometries unit of GIS long bus structure, these will for GIS long bus structure just
Phase design is built a station work and the even running after building a station, and practical, effective theoretical direction is provided.
Detailed description of the invention
Fig. 1 is GIS long bus structure, total station and prism location schematic diagram.
Fig. 2 is GIS long bus structure cylinder and ring flange temperature variation.
Fig. 3 is each feature geometries unit temperature deformation figure of GIS long bus structure, in figure the number value of each legend in right side with
Number value in Fig. 1 is corresponding, such as: " A1 " in Fig. 3 represents the position set in Fig. 1, and " A41 " in Fig. 3 is represented in Fig. 1
Position " 4-1 ".
Fig. 4 is the geometrical model figure of GIS long bus structure.
Fig. 5 is the detail view of each feature geometries unit of GIS long bus structure, and serial number 1 is compensating unit device, sequence in figure
Numbers 2 be sliding support, and serial number 3 is the flange disk device with pretightning force bolt, and serial number 4 is fixed support.
Fig. 6 is GIS long bus deformation displacement Distribution value cloud atlas.
Fig. 7 is the partial enlarged view of Fig. 6.
Specific embodiment
The calculation method of high altitude localities GIS long bus structure temperature deformation is able to solve traditional theory temperature deformation meter
It is big to calculate linear expansion coefficient error, and can not consider each feature geometries unit in GIS long bus structure, cylinder blind flange force, spiral shell
The problem of bolt pretightning force and concrete expansion power.
The calculation method of high altitude localities GIS long bus structure temperature deformation includes the following steps:
Step 1: temperature measurement is carried out in GIS long bus structure drum surface, flange panel surface, the weather within 24 hours
It measures when temperature raises and reduces, and at least measures 5 times respectively.
Step 2: arranging prism apparatus at GIS long bus structure ring flange, prism location coordinate is carried out using total station
Measurement, the measurement of total station and the measurement of temperature carry out simultaneously, corresponding at a temperature of each time point to guarantee to obtain
The accurate coordinates of prism apparatus.
Step 3: choose any point-in-time temperature data lens seat corresponding with its be denoted as on the basis of point, when by other
Between the temperature put and its corresponding prism coordinate points and datum mark carry out difference calculating.
Step 4: according to modified thermal expansion coefficient calculation formula:
In formula,L--- reference point location
dl--- the relative variation with reference point location
dT--- the relative variation with datum mark temperature
ΔT--- bulk temperature variable
γ--- weight coefficient
E--- elasticity modulus
It fits under the effect of cylinder blind flange force, bolt pretightening and concrete heat deformation expansion power, in GIS long bus structure
The comprehensive axial linear expansion coefficient of cylinder, ring flange and compensating unit.
Step 5: carrying out the GIS long bus structure geometrical model of 1:1 according to the result of selected datum mark total station survey
It establishes, imports finite element numerical simulation software and carry out grid dividing.
Step 6: linear expansion coefficient, elasticity modulus and Poisson's ratio corresponding to geometrical model in setting GIS long bus structure
Equal mechanical property parameters.
Step 7: other temperature measurement results are interpolated into GIS long bus structure finite element model, as temperature boundary
Condition, other boundary conditions carry out reasonable set according to the mounting means of GIS long bus structure equipment.
It is calculated Step 8: solving, obtains the temperature deformation value of GIS long bus structure at different temperatures.
Step 9: the deformation values of each part and corresponding temperature can be extracted in FEM calculation, by deformation values with
The ratio of temperature variable is thought of as comprehensive thermal expansion coefficient, and the ratio of the comprehensive coefficient of expansion and the theoretical coefficient of expansion is weight coefficientγ。
Step 10: result of finite element and the measurement result of practical total station are compared, finite element mould is calculated
The error range of type；By the deformation of the deformation values and total station survey of feature unit each in the finite element result under equal conditions
Value carries out error analysis, calculating error range of the maximum error range as finite element model.
Step 11: established finite element model is utilized to be changed into the simplification mould without pretightning force and cylinder blind flange force
Type corrects heating expansion computation formula and calculates comprehensive thermal expansion coefficient, to GIS long bus structure in conjunction with in-site measurement temperature
Deformation displacement value under the conditions of the temperature studied is calculated.
Preferably, the change in location measurement of each geometrical characteristic unit in GIS long bus structure be by total station and
Prism cooperation is realized.
Preferably, the linear expansion coefficient of each be fitted acquisition of geometrical characteristic unit in GIS long bus structure is in cylinder
Synthesis linear expansion coefficient under the factors collective effects such as body blind flange force, bolt pretightening and concrete expansion deformation force.
Preferably, the calculating process of GIS long bus structure temperature deformation is realized by the method for finite element.
Preferably, during the FEM calculation of GIS long bus structure, without carrying out Calculation of Heat Transfer, but direct basis
The measurement temperature of each geometrical characteristic of GIS long bus structure carries out interpolation calculation.
Preferably, during the temperature deformation of GIS long bus structure calculates, amendment thermal expansion is found out using result of finite element
Weight coefficient in coefficient formulaγ。
Preferably, during the temperature deformation of GIS long bus structure calculates, the specific stress state of measure field utilizes amendment heat
Coefficient of expansion formula calculates comprehensive thermal expansion coefficient, and the method deformed in conjunction with finite element calculating temperature difference replaces the survey of total station
Amount.
Preferably, during the temperature deformation of GIS long bus structure calculates, finite element calculating temperature difference is combined to become using temperature measurement
The method of shape replaces the measurement of total station.
Embodiment 1:
By taking the temperature deformation of the GIS long bus structure of Qinghai Area Guo Long 750KV substation calculates as an example, GIS long bus structure,
Total station and prism location schematic diagram as shown in Figure 1, GIS long bus structure cylinder and ring flange temperature change as shown in Fig. 2,
The each feature geometries unit temperature deformation value of GIS long bus structure as shown in figure 3, GIS long bus structure geometrical model such as Fig. 4
It is shown, each feature geometries unit detail view of GIS long bus structure as shown in figure 5, deformation displacement cloud charts as shown in fig. 6,
The partial enlarged view of deformation displacement cloud charts is as shown in Figure 7.
Firstly, prism and total station are arranged on GIS long bus structure according to field condition, as shown in Figure 1.Two in Fig. 1
The thick vertical line at end indicates switch isolation switch, is fixing end at this；Rectangle frame is cylinder；Wave is compensating unit, it is trapezoidal and
Triangle frame is fixed support, and triangle position is total station placement location；Prism on digital representation cylinder and ring flange is compiled
Number, each number indicates have a prism to place at this, and i-j indicates to set three at compensating unit position in 45 ° of folders in label
The prism of angle distribution, to obtain the exact value of compensating unit position displacement variation.According to measurement result (respectively such as Fig. 2 and Fig. 3 institute
Show), using thermal expansion coefficient calculation formula, the synthesis coefficient of expansion of each feature geometries unit is calculated, while establishing 1:1 ratio
The GIS long bus structure geometrical model (as shown in Figure 3 and Figure 4 respectively) of example, then, sets the material category of each feature structure
Property, it is here mainly comprehensive linear expansion coefficient, theoretical elasticity modulus, theoretical Poisson's ratio and theoretical yield strength.
It assigns material properties to corresponding geometrical model and carries out grid dividing, division mode is that hexahedron freely divides；
Then, the contact between each feature structure is reset.The conditions setting in finite element analysis software, by measurement
Temperature results are interpolated into finite element model, and the pact of other boundary conditions is carried out according to the operating status of GIS long bus structure
Beam obtains deformation displacement cloud charts and partial enlarged view (as shown in Figure 6 and Figure 7 respectively) after derivation；It later, will be limited
First result is compared with measurement result, provides error range.The deformation values of each part can be extracted in FEM calculation
With corresponding temperature, the ratio of deformation values and temperature variable is thought of as comprehensive thermal expansion coefficient, the comprehensive coefficient of expansion and theory
The ratio of the coefficient of expansion is weight coefficientγ；.The cylinder and ring flange temperature for measuring GIS long bus structure again, using being built
Vertical finite element model is changed into the simplified model without pretightning force and cylinder blind flange force, in conjunction with in-site measurement temperature, amendment heat
Expansion calculation formula calculates comprehensive thermal expansion coefficient, to the deforming position under the conditions of the temperature of GIS long bus structure studied
Shifting value is calculated.
Claims (8)
1. a kind of calculation method of high altitude localities GIS long bus structure temperature deformation, characterized by the following steps:
Step 1: temperature measurement is carried out in GIS long bus structure drum surface, flange panel surface, the weather within 24 hours
It measures when temperature raises and reduces, and at least measures 5 times respectively；
Step 2: arranging prism apparatus at GIS long bus structure ring flange, the survey of prism location coordinate is carried out using total station
Amount, the measurement of total station and the measurement of temperature carry out simultaneously, with prism corresponding at a temperature of guarantee acquisition each time point
The accurate coordinates of device；
Step 3: choose any point-in-time temperature data lens seat corresponding with its be denoted as on the basis of point, by other times
Temperature and its corresponding prism coordinate points and datum mark carry out difference calculating；
Step 4: according to modified thermal expansion coefficient calculation formula:
In formula,L--- reference point location
dl--- the relative variation with reference point location
dT--- the relative variation with datum mark temperature
ΔT--- bulk temperature variable
γ--- weight coefficient
E--- elasticity modulus
It fits under the effect of cylinder blind flange force, bolt pretightening and concrete heat deformation expansion power, in GIS long bus structure
The comprehensive axial linear expansion coefficient of cylinder, ring flange and compensating unit；
Step 5: carrying out building for the GIS long bus structure geometrical model of 1:1 according to the result of selected datum mark total station survey
It is vertical, it imports finite element numerical simulation software and carries out grid dividing；
Step 6: linear expansion coefficient corresponding to geometrical model, the power such as elasticity modulus and Poisson's ratio in setting GIS long bus structure
Learn performance parameter；
Step 7: other temperature measurement results are interpolated into GIS long bus structure finite element model, as temperature boundary item
Part, other boundary conditions carry out reasonable set according to the mounting means of GIS long bus structure equipment；
It is calculated Step 8: solving, obtains the temperature deformation value of GIS long bus structure at different temperatures；
Step 9: calculating the weight coefficient under every kind of stress state according to result of finite elementγ；
Step 10: result of finite element and the measurement result of practical total station are compared, finite element model is calculated
Error range；
Step 11: utilizing established finite element model, in conjunction with in-site measurement temperature, corrects heating expansion computation formula and calculate
Comprehensive thermal expansion coefficient, carries out prediction calculating to the temperature deformation of GIS long bus structure.
2. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: the change in location measurement of each geometrical characteristic unit in the GIS long bus structure is matched by total station and prism
Close realization.
3. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: the linear expansion coefficient of each be fitted acquisition of geometrical characteristic unit in the GIS long bus structure is in cylinder blind plate
Synthesis linear expansion coefficient under the factors collective effects such as power, bolt pretightening and concrete expansion deformation force.
4. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: the calculating process of the GIS long bus structure temperature deformation is realized by the method for finite element.
5. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: during the FEM calculation of the GIS long bus structure, without carrying out Calculation of Heat Transfer, but directly according to GIS long mother
The measurement temperature of each geometrical characteristic of cable architecture carries out interpolation calculation.
6. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: during the temperature deformation of the GIS long bus structure calculates, it is public that amendment thermal expansion coefficient is found out using result of finite element
Weight coefficient in formulaγ。
7. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: during the temperature deformation of the GIS long bus structure calculates, the specific stress state of measure field utilizes amendment thermal expansion system
Number formula, calculates comprehensive thermal expansion coefficient, and the method deformed in conjunction with finite element calculating temperature difference replaces the measurement of total station.
8. the calculation method of GIS long bus structure temperature deformation in high altitude localities according to claim 1, feature exist
In: during the temperature deformation of the GIS long bus structure calculates, the side of finite element calculating temperature difference deformation is combined using temperature measurement
Method replaces the measurement of total station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472262.2A CN109376487B (en) | 2018-12-04 | 2018-12-04 | Calculation method for temperature difference deformation of GIS long bus structure in high altitude region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811472262.2A CN109376487B (en) | 2018-12-04 | 2018-12-04 | Calculation method for temperature difference deformation of GIS long bus structure in high altitude region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109376487A true CN109376487A (en) | 2019-02-22 |
| CN109376487B CN109376487B (en) | 2022-12-06 |
Family
ID=65375627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811472262.2A Active CN109376487B (en) | 2018-12-04 | 2018-12-04 | Calculation method for temperature difference deformation of GIS long bus structure in high altitude region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109376487B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276092A (en) * | 2019-04-28 | 2019-09-24 | 国家电网有限公司 | It is a kind of open air GIS device temperature movement outdoor scene measurement and appraisal procedure |
| CN110425984A (en) * | 2019-09-06 | 2019-11-08 | 国网青海省电力公司电力科学研究院 | A kind of non-contact displacement detection device and its method based on image recognition technology |
| CN112097725A (en) * | 2020-08-01 | 2020-12-18 | 国网辽宁省电力有限公司电力科学研究院 | Temperature compensation type expansion joint checking and adjusting method for outdoor GIS bus |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07209340A (en) * | 1994-01-11 | 1995-08-11 | Toshiba Corp | Optical current measurement device |
| US20120006665A1 (en) * | 2010-07-09 | 2012-01-12 | Abb Technology Ag | Gas-insulated switchgear assembly |
| CN103559358A (en) * | 2013-11-13 | 2014-02-05 | 国家电网公司 | Method for analogue simulation of ultrahigh-voltage GIS (gas insulated switchgear) oscillation type lightning surge voltage withstand test |
| CN204407813U (en) * | 2015-01-08 | 2015-06-17 | 国家电网公司 | A kind of GIS device bus bar canister end and long draw bracing or strutting arrangement |
| CN104779568A (en) * | 2014-12-11 | 2015-07-15 | 平高集团有限公司 | Online monitoring system for GIS busbar barrel |
| CN105183988A (en) * | 2015-09-07 | 2015-12-23 | 电子科技大学 | Method of calculating and analyzing temperature and stress strain finite elements of earth stud after being powered on |
| CN107514989A (en) * | 2017-08-23 | 2017-12-26 | 国网新疆电力公司检修公司 | The deformation of GIS bus telescopings section, sliding extension and subsidence monitoring of foundation system |
| CN108052697A (en) * | 2017-11-18 | 2018-05-18 | 西安交通大学 | A kind of corridor pipe GIL three-dimensional temperature fields and breathing deformation calculation method based on workbench |
| JP2018128426A (en) * | 2017-02-10 | 2018-08-16 | 矢崎総業株式会社 | Thermal analysis method of wire harness, thermal analysis device, and program |
-
2018
- 2018-12-04 CN CN201811472262.2A patent/CN109376487B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07209340A (en) * | 1994-01-11 | 1995-08-11 | Toshiba Corp | Optical current measurement device |
| US20120006665A1 (en) * | 2010-07-09 | 2012-01-12 | Abb Technology Ag | Gas-insulated switchgear assembly |
| CN103559358A (en) * | 2013-11-13 | 2014-02-05 | 国家电网公司 | Method for analogue simulation of ultrahigh-voltage GIS (gas insulated switchgear) oscillation type lightning surge voltage withstand test |
| CN104779568A (en) * | 2014-12-11 | 2015-07-15 | 平高集团有限公司 | Online monitoring system for GIS busbar barrel |
| CN204407813U (en) * | 2015-01-08 | 2015-06-17 | 国家电网公司 | A kind of GIS device bus bar canister end and long draw bracing or strutting arrangement |
| CN105183988A (en) * | 2015-09-07 | 2015-12-23 | 电子科技大学 | Method of calculating and analyzing temperature and stress strain finite elements of earth stud after being powered on |
| JP2018128426A (en) * | 2017-02-10 | 2018-08-16 | 矢崎総業株式会社 | Thermal analysis method of wire harness, thermal analysis device, and program |
| CN107514989A (en) * | 2017-08-23 | 2017-12-26 | 国网新疆电力公司检修公司 | The deformation of GIS bus telescopings section, sliding extension and subsidence monitoring of foundation system |
| CN108052697A (en) * | 2017-11-18 | 2018-05-18 | 西安交通大学 | A kind of corridor pipe GIL three-dimensional temperature fields and breathing deformation calculation method based on workbench |
Non-Patent Citations (4)
| Title |
|---|
| 何喜梅等: "高海拔大温差地区GIS设备不同类型膨胀节失效分析", 《青海电力》 * |
| 张烁等: "750 kV GIS设备长母线结构滑动支撑失效原因分析", 《青海电力》 * |
| 徐敏等: "基于有限元分析的GIS母线筒温度场分布研究", 《华东电力》 * |
| 蒋晓旭: "GIS长母线位移监测系统工程应用实践", 《高压电器》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276092A (en) * | 2019-04-28 | 2019-09-24 | 国家电网有限公司 | It is a kind of open air GIS device temperature movement outdoor scene measurement and appraisal procedure |
| CN110276092B (en) * | 2019-04-28 | 2022-12-23 | 国家电网有限公司 | Outdoor GIS equipment temperature displacement live-action measurement and evaluation method |
| CN110425984A (en) * | 2019-09-06 | 2019-11-08 | 国网青海省电力公司电力科学研究院 | A kind of non-contact displacement detection device and its method based on image recognition technology |
| CN112097725A (en) * | 2020-08-01 | 2020-12-18 | 国网辽宁省电力有限公司电力科学研究院 | Temperature compensation type expansion joint checking and adjusting method for outdoor GIS bus |
| CN112097725B (en) * | 2020-08-01 | 2022-05-10 | 国网辽宁省电力有限公司电力科学研究院 | Temperature compensation type expansion joint checking and adjusting method for outdoor GIS bus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109376487B (en) | 2022-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108895974B (en) | Structural deformation optical fiber monitoring and reconstruction method and system | |
| CN109376487A (en) | A kind of calculation method of high altitude localities GIS long bus structure temperature deformation | |
| CN106446364B (en) | A kind of direct-coupled motor heat analysis method of temperature field-Re Lu | |
| CN102539107B (en) | Method for accurately synchronizing test signals of wind tunnel | |
| CN102979307A (en) | Temperature-controlled crack prevention construction method for concrete structure | |
| CN101804581A (en) | Implementation method of automatic compensation for thermal deformation of machine tool | |
| CN108801141B (en) | Intelligent debugging and calibrating system for ultrahigh-voltage isolating switch based on laser measurement technology | |
| Yang et al. | Application of videometric technique to deformation measurement for large-scale composite wind turbine blade | |
| CN102778627B (en) | Method and device for determining current-carrying capacity of cable | |
| CN104915493B (en) | A kind of travelling-wave tubes internal temperature flexible measurement method based on FEM model | |
| CN109425844A (en) | A kind of calibration method and system of data sampling | |
| CN103995198B (en) | A kind of analog input combining unit metering performance detection means and its detection method | |
| CN105844038B (en) | A kind of highway polymorphic type traffic detector Combinatorial Optimization distribution method | |
| CN102721480A (en) | Method for calculating equivalent temperature field of large-size concrete based on cooling water monitoring | |
| CN109274116A (en) | A kind of alternating current-direct current mixing micro-capacitance sensor continuous tide calculation method | |
| CN105139411A (en) | Large visual field camera calibration method based on four sets of collinear constraint calibration rulers | |
| CN102735971A (en) | Device for measuring and computing synchronous vector of power system based on field programmable gate array (FPGA) | |
| CN103353926A (en) | Motor temperature distribution real-time monitoring method | |
| CN105203591A (en) | Measurement method of hot wall heat flux density of spacecraft test model | |
| CN105787191A (en) | Rapid cable temperature calculation method based on parameter fitting | |
| CN102918406B (en) | AC electric charge measurement device, and AC electric charge measurement method | |
| CN109446471B (en) | Fluid-solid coupling interface data transmission method considering load uncertainty | |
| CN105759119A (en) | SDFT fundamental positive sequence component phase synchronization method and phase synchronization system | |
| CN109298362A (en) | A kind of distribution line failure indicator three-phase synchronous method for testing precision, device and system | |
| CN110231554A (en) | A kind of 4 acoustic fix ranging methods of GIL/GIS breakdown fault |
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 |