Ramesh et al., 2019 - Google Patents
Measurement of electric field in composite insulating material with defectsRamesh et al., 2019
- Document ID
- 7716732053755082401
- Author
- Ramesh M
- Gorur R
- Publication year
- Publication venue
- 2019 SoutheastCon
External Links
Snippet
Outdoor insulators play a vital role in the reliable operation of power system. These insulators can develop defects either during manufacturing or service. It is essential to identify and replace the defective insulators before they result in a power outage. Electric …
- 230000005684 electric field 0 title abstract description 58
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1236—Testing dielectric strength or breakdown voltage; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of surge arresters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/02—Testing of electric apparatus, lines or components, for short-circuits, discontinuities, leakage of current, or incorrect line connection
- G01R31/024—Arrangements for indicating continuity or short-circuits in electric apparatus or lines, leakage or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/02—Testing of electric apparatus, lines or components, for short-circuits, discontinuities, leakage of current, or incorrect line connection
- G01R31/021—Testing of cables or conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants; Measuring impedance or related variables
- G01R27/2688—Measuring quality factor or dielectric loss, e.g. loss angle, or power factor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material
- G01N27/22—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating capacitance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material
- G01N27/04—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating resistance
- G01N27/20—Investigating the presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0286—Miniature specimen; Testing on micro-regions of a specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102944777B (en) | Cable detection method in serviceable life | |
| Ramesh et al. | Impact of superficial and internal defects on electric field of composite insulators | |
| Volat et al. | New method for in live-line detection of small defects in composite insulator based on electro-optic E-field sensor | |
| CN109239539B (en) | A device and experimental method for studying the partial discharge characteristics of epoxy insulating materials | |
| CN106771924A (en) | A kind of utilization photoelectricity field sensor detects the detecting system and method for defects of insulator | |
| Yi et al. | The influences of solid surface on the propagation of creepage discharge in insulating liquids | |
| US20080100299A1 (en) | Apparatus and method for identifying the presence of high conductivity or permittivity conditions in electrically insulating materials | |
| CN108445363A (en) | A kind of city net cable insulation defect inspection method based on fringe field | |
| Palangar et al. | Identification of composite insulator criticality based on a new leakage current diagnostic index | |
| Zhou et al. | Assessing aging status and type of XLPE cable insulation with a graphic approach based on PDC measurement | |
| Mansour et al. | Partial discharges and associated mechanisms for micro gap delamination at epoxy spacer in GIS | |
| Xiang et al. | Streamer characteristic and breakdown in a mineral oil and a synthetic ester liquid under DC voltage | |
| Ramesh et al. | Measurement of electric field in composite insulating material with defects | |
| Tamus et al. | Investigation of temperature dependence of dielectric processes in thermally aged PVC insulation | |
| Gao et al. | Research on electric field characteristics under different length interface air gap defects in cable terminals of high-speed train | |
| Cui et al. | Electric field calculations and measurements on composite insulating materials with and without defects | |
| Tzimas et al. | Qualitative analysis of PEA and TSM techniques on a 200kV extruded cable during a VSC ageing program | |
| DE102013104155B4 (en) | High voltage device with a fiber optic sensor and method for testing an insulation of such a high voltage device | |
| Kone et al. | Experimental investigation of internal defect detection of a 69-kV composite insulator | |
| CN206431236U (en) | A kind of utilization photoelectricity field sensor detects the detecting system of defects of insulator | |
| CN111175617B (en) | A method and system for simulating and determining a breakdown fault of a capacitor layer of a high-voltage bushing | |
| Imperatore et al. | Dielectric spectroscopy on thermally aged, intact, poly-vinyl chloride/ethylene propylene rubber (PVC/EPR) multipolar cables | |
| Kone et al. | 3D numerical investigation of internal defects in a 28 kV composite insulator | |
| Georgiev et al. | Polymeric Composite Insulators for Overhead Power Lines. A Review of In-Service Damages and Diagnostic Approaches | |
| ElFaraskoury et al. | Partial discharge measurements with internal artificial cavities defects for underground cables |