Nothing Special   »   [go: up one dir, main page]

Fan et al., 2021 - Google Patents

FDS measurement-based moisture estimation model for transformer oil-paper insulation including the aging effect

Fan et al., 2021

View PDF
Document ID
9498867911513094516
Author
Fan X
Liu J
Lai B
Zhang Y
Zhang C
Publication year
Publication venue
IEEE Transactions on Instrumentation and Measurement

External Links

Snippet

Moisture accumulates with the growing aging progress of oil-paper insulation and further shortens the remaining life of the transformer. The frequency-domain spectroscopy (FDS) technique can be used to realize the moisture estimation. However, the moisture estimation …
Continue reading at www.researchgate.net (PDF) (other versions)

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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/26—Investigating or analysing materials by specific methods not covered by the preceding groups oils; viscous liquids; paints; inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • 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
    • 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
    • G01R31/027—Testing of transformers
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/44—Investigating or analysing materials by specific methods not covered by the preceding groups resins; rubber; leather

Similar Documents

Publication Publication Date Title
Fan et al. FDS measurement-based moisture estimation model for transformer oil-paper insulation including the aging effect
Islam et al. A review of condition monitoring techniques and diagnostic tests for lifetime estimation of power transformers
Liu et al. Moisture diagnosis of transformer oil-immersed insulation with intelligent technique and frequency-domain spectroscopy
Liu et al. Temperature correction to dielectric modulus and activation energy prediction of oil-immersed cellulose insulation
Yang et al. Assessment of oil-paper insulation aging using frequency domain spectroscopy and moisture equilibrium curves
Liu et al. Condition prediction for oil-immersed cellulose insulation in field transformer using fitting fingerprint database
US20190041450A1 (en) An intelligent assessment method of main insulation condition of transformer oil paper insulation
Liu et al. Aging evaluation and moisture prediction of oil-immersed cellulose insulation in field transformer using frequency domain spectroscopy and aging kinetics model
Gao et al. Condition diagnosis of transformer oil-paper insulation using dielectric response fingerprint characteristics
Zhou et al. Assessing aging status and type of XLPE cable insulation with a graphic approach based on PDC measurement
Liu et al. A modified X-model of the oil-impregnated bushing including non-uniform thermal aging of cellulose insulation
Yang et al. Novel characteristic quantities for determining the moisture state of Oil-impregnated cellulose insulation using the extended debye model
Mi et al. Electrothermal aging characteristics of epoxy resin under bipolar exponential decay pulse voltage and its insulation life evaluation based on Cole-Cole model
Liao et al. A method for discriminating the moisture status of OIP bushing based on Dissado-hill and GWO-HMM model
Liu et al. A BPNN model-based AdaBoost algorithm for estimating inside moisture of oil–paper insulation of power transformer
Fan et al. Moisture evaluation of oil-immersed insulation in bushing based on frequency domain spectroscopy and grey relational analysis
Lin et al. A novel PDC system and tanδ calculation process for insulation diagnosis of submarine cables
Liu et al. A novel curve database for moisture evaluation of transformer oil-immersed cellulose insulation using FDS and exponential decay model
Yang et al. A circuital model-based analysis of moisture content in oil-impregnated-paper insulation using frequency domain spectroscopy
Ansari et al. Insulation Condition Prediction of Oil-Impregnated Paper Bushings Using a Novel Hybrid Geometric Approach
Zhou et al. Frequency-dependence of conductivity of new mineral oil studied by dielectric spectroscopy
Zheng et al. Investigation on Hot Spot Temperature of Resin-Impregnated Paper High-Voltage Bushing Based Upon Dielectric Loss
Mishra et al. A Non-linear Regression Based Approach to Assess Transformer Insulation Condition Using Dielectric Response Recorded for Short Duration
Joshi et al. Dielectric diagnosis of EHV current transformer using frequency domain spectroscopy (FDS) & polarization and depolarization current (PDC) techniques
Arief et al. Degradation of polymeric power cable due to water treeing under AC and DC stress