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FR2278138A1 - Dehydration of dielectric liqs. - esp. transformer oils, by passage through a zeolite mol. sieve - Google Patents

Dehydration of dielectric liqs. - esp. transformer oils, by passage through a zeolite mol. sieve

Info

Publication number
FR2278138A1
FR2278138A1 FR7518852A FR7518852A FR2278138A1 FR 2278138 A1 FR2278138 A1 FR 2278138A1 FR 7518852 A FR7518852 A FR 7518852A FR 7518852 A FR7518852 A FR 7518852A FR 2278138 A1 FR2278138 A1 FR 2278138A1
Authority
FR
France
Prior art keywords
zeolite
dehydration
sieve
mol
dielectric
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
Application number
FR7518852A
Other languages
French (fr)
Other versions
FR2278138B3 (en
Inventor
Gisela Leschke Geb Schemionek
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.)
TRAFOFIT GmbH
Original Assignee
TRAFOFIT GmbH
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 TRAFOFIT GmbH filed Critical TRAFOFIT GmbH
Publication of FR2278138A1 publication Critical patent/FR2278138A1/en
Application granted granted Critical
Publication of FR2278138B3 publication Critical patent/FR2278138B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H2009/0055—Oil filters for tap change devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analytical Chemistry (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The dehydration of dielectric liquids, e.g. oils used in transformer, rheostat contactors, voltage regulators, etc., is carried out by passing the liq. through a granular zeolite mol. sieve. The zeolite is easily inserted into and withdrawn from the path of the oil, from which it removes both H2O and acids; the amt. of zeolite used can be adapted so that its effective life coincides with the service life of the oil, so that the oil and zeolite can be replaced simultaneously.
FR7518852A 1974-07-09 1975-06-17 Dehydration of dielectric liqs. - esp. transformer oils, by passage through a zeolite mol. sieve Granted FR2278138A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742432911 DE2432911A1 (en) 1974-07-09 1974-07-09 METHOD AND DEVICE FOR DRAWING WATER FROM DIELECTRIC LIQUIDS

Publications (2)

Publication Number Publication Date
FR2278138A1 true FR2278138A1 (en) 1976-02-06
FR2278138B3 FR2278138B3 (en) 1977-07-01

Family

ID=5920074

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7518852A Granted FR2278138A1 (en) 1974-07-09 1975-06-17 Dehydration of dielectric liqs. - esp. transformer oils, by passage through a zeolite mol. sieve

Country Status (6)

Country Link
BE (1) BE830159A (en)
DD (1) DD118193A5 (en)
DE (1) DE2432911A1 (en)
FR (1) FR2278138A1 (en)
LU (1) LU72690A1 (en)
NL (1) NL7507169A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406877A1 (en) * 1977-10-19 1979-05-18 Gen Electric PERCOLATION COOLING SYSTEM FOR ELECTRICAL APPLIANCES
FR2495007A1 (en) * 1980-11-28 1982-06-04 Coal Industry Patents Ltd PROCESS FOR DEHYDRATING AN ORGANIC SOLVENT BY SLOW PASSING IN A COLUMN CONTAINING A MOLECULAR SIEVE DEHYDRATE
EP0307716A1 (en) * 1987-09-17 1989-03-22 Takano Corporation Method for removing traces of water from power transformer oil
WO1991012087A1 (en) * 1990-02-14 1991-08-22 Dr. Beck & Co. Aktiengesellschaft Process for the in-line drying of polyamide/imide wire enamels containing n-methylpyrrolidone in enamel-application units
EP0481239A1 (en) * 1990-10-19 1992-04-22 Maschinenfabrik Reinhausen Gmbh Oil filter, especially for tap changes of step-down transformers
EP3185259A1 (en) * 2015-12-21 2017-06-28 General Electric Technology GmbH Method for regulating the humidity content level in an electrical transformer having oil-impregnated cellulosic insulating elements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230048A1 (en) * 1982-08-12 1984-02-16 Wacker-Chemie GmbH, 8000 München METHOD FOR STABILIZING CHLORINE HYDROCARBONS, METHOD STABILIZED CHLORINE HYDROCARBONS AND THEIR USE
DE19547753A1 (en) * 1995-12-20 1997-06-26 Bayerische Motoren Werke Ag Hydraulic brake system for a motor vehicle
US6360559B1 (en) * 1999-06-02 2002-03-26 Advantest Corporation Cooling system
DE102004002716A1 (en) * 2004-01-19 2005-08-11 Siemens Ag Cleaning coolant and/or insulating agent comprises circulating coolant and/or insulating agent in cycle in which extracting device for impurities for coolant and/or insulating agent is integrated

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406877A1 (en) * 1977-10-19 1979-05-18 Gen Electric PERCOLATION COOLING SYSTEM FOR ELECTRICAL APPLIANCES
FR2495007A1 (en) * 1980-11-28 1982-06-04 Coal Industry Patents Ltd PROCESS FOR DEHYDRATING AN ORGANIC SOLVENT BY SLOW PASSING IN A COLUMN CONTAINING A MOLECULAR SIEVE DEHYDRATE
EP0307716A1 (en) * 1987-09-17 1989-03-22 Takano Corporation Method for removing traces of water from power transformer oil
WO1991012087A1 (en) * 1990-02-14 1991-08-22 Dr. Beck & Co. Aktiengesellschaft Process for the in-line drying of polyamide/imide wire enamels containing n-methylpyrrolidone in enamel-application units
EP0481239A1 (en) * 1990-10-19 1992-04-22 Maschinenfabrik Reinhausen Gmbh Oil filter, especially for tap changes of step-down transformers
EP3185259A1 (en) * 2015-12-21 2017-06-28 General Electric Technology GmbH Method for regulating the humidity content level in an electrical transformer having oil-impregnated cellulosic insulating elements

Also Published As

Publication number Publication date
BE830159A (en) 1975-10-01
FR2278138B3 (en) 1977-07-01
LU72690A1 (en) 1975-09-29
DE2432911A1 (en) 1976-01-29
DD118193A5 (en) 1976-02-12
NL7507169A (en) 1976-01-13

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Legal Events

Date Code Title Description
ST Notification of lapse