FR2251009A1 - Transformer insulation liquid control device - has two electrodes immersed in liquid connected to measuring device - Google Patents

Transformer insulation liquid control device - has two electrodes immersed in liquid connected to measuring device

Info

Publication number
FR2251009A1
FR2251009A1 FR7339810A FR7339810A FR2251009A1 FR 2251009 A1 FR2251009 A1 FR 2251009A1 FR 7339810 A FR7339810 A FR 7339810A FR 7339810 A FR7339810 A FR 7339810A FR 2251009 A1 FR2251009 A1 FR 2251009A1
Authority
FR
France
Prior art keywords
liquid
electrodes
control device
transformer insulation
measuring device
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.)
Withdrawn
Application number
FR7339810A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to FR7339810A priority Critical patent/FR2251009A1/en
Publication of FR2251009A1 publication Critical patent/FR2251009A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01R27/2617—Measuring dielectric properties, e.g. constants
    • G01R27/2635—Sample holders, electrodes or excitation arrangements, e.g. sensors or measuring cells
    • 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, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • 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
    • G01R31/1281—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 of liquids or gases

Abstract

The device controls the electrical characteristics of a liquid insulating dielectric (22) for an electrical apparatus immersed in the liquid which is contained in a leakproof tank (20) and is particularly for electrical transformers of the integrally-filled type. The device comprises two electrodes (24, 26) at a fixed spacing which are fitted to the tank and immersed in the dielectric liquid, two external terminals (34, 36) which are connected to the electrodes and also to a voltage source (44) which enables the electrodes to have a potential difference between them, and a measurement device outside the tank which enables the electrical characteristics of the insulation to be controlled.
FR7339810A 1973-11-08 1973-11-08 Transformer insulation liquid control device - has two electrodes immersed in liquid connected to measuring device Withdrawn FR2251009A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7339810A FR2251009A1 (en) 1973-11-08 1973-11-08 Transformer insulation liquid control device - has two electrodes immersed in liquid connected to measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7339810A FR2251009A1 (en) 1973-11-08 1973-11-08 Transformer insulation liquid control device - has two electrodes immersed in liquid connected to measuring device

Publications (1)

Publication Number Publication Date
FR2251009A1 true FR2251009A1 (en) 1975-06-06

Family

ID=9127487

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339810A Withdrawn FR2251009A1 (en) 1973-11-08 1973-11-08 Transformer insulation liquid control device - has two electrodes immersed in liquid connected to measuring device

Country Status (1)

Country Link
FR (1) FR2251009A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112505515A (en) * 2020-11-18 2021-03-16 国网内蒙古东部电力有限公司呼伦贝尔供电公司 Method for testing insulation characteristic of transformer under low temperature condition
EP3792644A1 (en) * 2019-09-12 2021-03-17 Ostbayerische Technische Hochschule Regensburg Non-destructive testing of a dielectric strength of a liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3792644A1 (en) * 2019-09-12 2021-03-17 Ostbayerische Technische Hochschule Regensburg Non-destructive testing of a dielectric strength of a liquid
CN112505515A (en) * 2020-11-18 2021-03-16 国网内蒙古东部电力有限公司呼伦贝尔供电公司 Method for testing insulation characteristic of transformer under low temperature condition
CN112505515B (en) * 2020-11-18 2024-04-19 国网内蒙古东部电力有限公司呼伦贝尔供电公司 Transformer insulation characteristic test method under low temperature condition

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
ST Notification of lapse