CA2435505A1 - Rac cooling - Google Patents

Rac cooling Download PDF

Info

Publication number
CA2435505A1
CA2435505A1 CA 2435505 CA2435505A CA2435505A1 CA 2435505 A1 CA2435505 A1 CA 2435505A1 CA 2435505 CA2435505 CA 2435505 CA 2435505 A CA2435505 A CA 2435505A CA 2435505 A1 CA2435505 A1 CA 2435505A1
Authority
CA
Canada
Prior art keywords
transformers
cooling
oil
transformer
heat
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
CA 2435505
Other languages
French (fr)
Other versions
CA2435505C (en
Inventor
Rafic Adel Chehouri
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2435505 priority Critical patent/CA2435505C/en
Priority to PCT/CA2003/001275 priority patent/WO2005004179A1/en
Priority to AU2003304302A priority patent/AU2003304302A1/en
Publication of CA2435505A1 publication Critical patent/CA2435505A1/en
Application granted granted Critical
Publication of CA2435505C publication Critical patent/CA2435505C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • 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
    • 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
    • H01F27/18—Liquid cooling by evaporating liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P2003/006—Liquid cooling the liquid being oil

Abstract

Method of cooling oil immersed transformer or an electrical machine by heat transfer to a liquefied gas, e.g. Freon. A first heat exchanger transfers heat from oil to liquefied gas, which circulates in a closed heat pump circuit with an evaporating cycle. Finally heat is removed by airflow. This done by either using external or remotely cooler unit containing heat exchanger in communication with conventional refrigeration unit on trailer or any fixed or movable applicable method to locate near Transformer, or by directly locating the heat exchanger and/or pre-engineered evaporating coil within the transformer housing connected to outside refrigeration unit. My new Transformer Oil cooler unit can be applied to existing transformers or can be adopted in new design and manufacturing of electrical Transformers, which can have better temperature control, and better cooling for the hot spot area in Transformers. This is a practical and cost effective system to cool electrical Transformers particularly under extreme conditions in which it will boost the transformers output and enhanced its efficiency. My system has not been previously available.
My invention is liquid (Oil) -to-Gas cooling method and not to be confused with current Liquid-to-liquid or any Gas-to-Gas cooling practice.
CA 2435505 2003-07-07 2003-07-07 Rac cooling Expired - Fee Related CA2435505C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA 2435505 CA2435505C (en) 2003-07-07 2003-07-07 Rac cooling
PCT/CA2003/001275 WO2005004179A1 (en) 2003-07-07 2003-08-29 Method of cooling an oil immersed electrical machine using a heat pump
AU2003304302A AU2003304302A1 (en) 2003-07-07 2003-08-29 Method of cooling an oil immersed electrical machine using a heat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2435505 CA2435505C (en) 2003-07-07 2003-07-07 Rac cooling

Publications (2)

Publication Number Publication Date
CA2435505A1 true CA2435505A1 (en) 2003-12-06
CA2435505C CA2435505C (en) 2004-10-26

Family

ID=29783918

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2435505 Expired - Fee Related CA2435505C (en) 2003-07-07 2003-07-07 Rac cooling

Country Status (3)

Country Link
AU (1) AU2003304302A1 (en)
CA (1) CA2435505C (en)
WO (1) WO2005004179A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100764408B1 (en) 2006-03-22 2007-10-05 임성황 Transformer Cooling Device Using Power Generation Rankine Cycle
CN108010670A (en) * 2017-12-12 2018-05-08 中车大连机车研究所有限公司 Tractive transformer cooling system used for rail vehicle based on phase-change heat-exchange technology

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832920A (en) * 1957-01-24 1960-04-21 George Osborne Mclean Electric transformer coolers
DE3032591A1 (en) * 1980-08-27 1982-04-01 Siemens AG, 1000 Berlin und 8000 München Cooling system for electrical machine - has prim. cooling agent flowing through pipes in store with heat pump circuit
US4394635A (en) * 1981-04-16 1983-07-19 General Electric Company Method for determining dissolved gas concentrations in dielectric coolants
SE0001673L (en) * 2000-05-08 2001-09-17 Kjell Andersson Plant for disposing of excess heat from a power transformer
US20020088242A1 (en) * 2001-01-08 2002-07-11 Williams Douglas P. Refrigeration cooled transformer

Also Published As

Publication number Publication date
WO2005004179A1 (en) 2005-01-13
CA2435505C (en) 2004-10-26
AU2003304302A1 (en) 2005-01-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180709