JPS5718305A - Underwater electrical appliance - Google Patents

Underwater electrical appliance

Info

Publication number
JPS5718305A
JPS5718305A JP9373280A JP9373280A JPS5718305A JP S5718305 A JPS5718305 A JP S5718305A JP 9373280 A JP9373280 A JP 9373280A JP 9373280 A JP9373280 A JP 9373280A JP S5718305 A JPS5718305 A JP S5718305A
Authority
JP
Japan
Prior art keywords
electrical appliance
vessel
transformer
oil
conservator
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.)
Pending
Application number
JP9373280A
Other languages
Japanese (ja)
Inventor
Akira Ishimoto
Noboru Ooka
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP9373280A priority Critical patent/JPS5718305A/en
Publication of JPS5718305A publication Critical patent/JPS5718305A/en
Pending 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

Abstract

PURPOSE:To improve the reliability of an underwater electrical appliance by communicatng the top of a vessel to a space sealed with air above the oil surface in an electrical appliance through a communicating hole with the bottom thereof is communicated outside the electrical appliance through an opening. CONSTITUTION:An example is shown in the application for an oil-filled transformer. A tank 3 housing the contents 2 of a transformer 1 is filled with an insulating oil 4 and a conservator 5 is provided to compensate for changes in the capacity of the insulating oil due to variations in the temperature thereof. A diaphragm 6 is provided above the oil surface in the conservator 5 covering thereof. A vessel 8 is provided on the side of the tank 3 in such a manner that the top of the vessel is communicated to a space sealed with an air of the conservator 5 through a piping 10 by way of a communicating hole 9 while the bottom thereof 8 is communicated outside the transformer 1 through an opening 11. The pressure inside and outside of the transformer is always kept equal with the entry of water into the vessel 8 through the opening 11 while variations in the capacity of the insulating oil 4 is compensated for by changes in the water level 13.
JP9373280A 1980-07-09 1980-07-09 Underwater electrical appliance Pending JPS5718305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9373280A JPS5718305A (en) 1980-07-09 1980-07-09 Underwater electrical appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9373280A JPS5718305A (en) 1980-07-09 1980-07-09 Underwater electrical appliance

Publications (1)

Publication Number Publication Date
JPS5718305A true JPS5718305A (en) 1982-01-30

Family

ID=14090578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9373280A Pending JPS5718305A (en) 1980-07-09 1980-07-09 Underwater electrical appliance

Country Status (1)

Country Link
JP (1) JPS5718305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6276491U (en) * 1985-10-31 1987-05-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6276491U (en) * 1985-10-31 1987-05-16

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