JPS57181108A - Hermetically sealed type transformer - Google Patents

Hermetically sealed type transformer

Info

Publication number
JPS57181108A
JPS57181108A JP5951682A JP5951682A JPS57181108A JP S57181108 A JPS57181108 A JP S57181108A JP 5951682 A JP5951682 A JP 5951682A JP 5951682 A JP5951682 A JP 5951682A JP S57181108 A JPS57181108 A JP S57181108A
Authority
JP
Japan
Prior art keywords
pressure discharging
pressure
discharging device
tank
transformer
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
JP5951682A
Other languages
Japanese (ja)
Other versions
JPS5924527B2 (en
Inventor
Masaru Sakamoto
Keiji Suganuma
Taichi Ueda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5951682A priority Critical patent/JPS5924527B2/en
Publication of JPS57181108A publication Critical patent/JPS57181108A/en
Publication of JPS5924527B2 publication Critical patent/JPS5924527B2/en
Expired 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/404—Protective devices specially adapted for fluid filled transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

PURPOSE:To improve safety, and to facilitate maintenance by each mounting two kinds of breaking and non-breaking type pressure discharging devices independently to a hermetically sealed tank and cooperatively operating both pressure discharging devices in response to the magnitudes of the internal accidents of the transformer. CONSTITUTION:The interior 3 of the transformer and insulating oil are encased into a tank proper 1, a cover 2 is welded, and the tank proper is hermetically sealed. A bushing 5 and the interior 3 of the transformer are connected by connecting wires 6, and the main pressure discharging device 7 is mounted to the cover 2 and the auxiliary pressure discharging device 8 to the tank proper 1. With the main pressure discharging device, film plate 11 is set up between the end section of a pressure discharging cylinder 9 and a clamping plate 10, and a movable cover 13 is released by pushing it by a gas, which breaks the film plate 11 when pressure in the tank rises abnormally and is ejected. With the auxiliary pressure discharging device 8, a pressure discharging valve 18 and a spring 20 are mounted into a pressure discharging cylinder 16 so as to close a pressure discharging port 22 at all times and open the pressure discharging port 22 when pressure in the tank rises. The bore of the pressure discharging port of the main pressure discharging device 7 is made larger than that of the auxiliary pressure discharging device 8, and the auxiliary pressure discharging device 8 discharges pressure at pressure lower than the main pressure discharging device 7.
JP5951682A 1982-04-12 1982-04-12 sealed transformer Expired JPS5924527B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5951682A JPS5924527B2 (en) 1982-04-12 1982-04-12 sealed transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5951682A JPS5924527B2 (en) 1982-04-12 1982-04-12 sealed transformer

Publications (2)

Publication Number Publication Date
JPS57181108A true JPS57181108A (en) 1982-11-08
JPS5924527B2 JPS5924527B2 (en) 1984-06-09

Family

ID=13115501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5951682A Expired JPS5924527B2 (en) 1982-04-12 1982-04-12 sealed transformer

Country Status (1)

Country Link
JP (1) JPS5924527B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713837A1 (en) * 1993-12-08 1995-06-16 Merlin Gerin Protection device for electrical equipment such as power transformer
CN103065766A (en) * 2012-12-14 2013-04-24 常州东芝舒电变压器有限公司 Plug-in type cable lifting seat

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6294432U (en) * 1985-12-04 1987-06-16
JPS632236U (en) * 1986-06-19 1988-01-08
JPS6356313U (en) * 1986-09-30 1988-04-15
JPH01279451A (en) * 1988-05-02 1989-11-09 Matsushita Electric Ind Co Ltd Pinch roller device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713837A1 (en) * 1993-12-08 1995-06-16 Merlin Gerin Protection device for electrical equipment such as power transformer
CN103065766A (en) * 2012-12-14 2013-04-24 常州东芝舒电变压器有限公司 Plug-in type cable lifting seat
CN103065766B (en) * 2012-12-14 2015-12-09 常州东芝舒电变压器有限公司 Plug-in type cable raises seat

Also Published As

Publication number Publication date
JPS5924527B2 (en) 1984-06-09

Similar Documents

Publication Publication Date Title
JPS57181108A (en) Hermetically sealed type transformer
CN115621845A (en) Liquid supplementing and strong sealing liquid-electric effect arc extinguishing device and arc extinguishing method thereof
ES8405913A1 (en) Apparatus for controlling the set pressure of a safety valve.
EP0231578A3 (en) Post mix beverage dispensing valve with pressure balancing means
JPS577909A (en) Oil filled electric equipment
IE790966L (en) Liquid de-gassing devices
DE3872585D1 (en) DISCHARGE DEVICE FOR MEDIA.
CA2081926A1 (en) Bayonet-styled circuit breaker having a fluid sealing assembly
UA5570A1 (en) Oil-pneumatic control device for high-voltage circuit breaker
DE3064395D1 (en) Gas-blast circuit-breaker
JPS5664413A (en) Oil-immersed transformer
EP0050947A3 (en) Improvements in high pressure gas cylinders
JPS577911A (en) Oil filled electric equipment
CN211039827U (en) Explosion-proof valve
ES469339A1 (en) Pressure discharge device for the frame of a high voltage installation that at least temporarily is under gas or liquid pressure (Machine-translation by Google Translate, not legally binding)
DE2708349A1 (en) Electric pressure switch for outdoor supply lines - has pressure relief aperture filled with castable silicone rubber soln.
JPS5710214A (en) Underwater electric device
JPS556801A (en) Oil-filled electrical apparatus
JPS5731115A (en) Elephant case device for electrical machinery and apparatus
RU2037717C1 (en) Automatic safety device used to shut off the gas line at its breakage
JPS53117811A (en) Communication system water-shock preventive device
KR830001429Y1 (en) Lo-type switchgear
JPS5476774A (en) Antiskid controller
CN2735517Y (en) An explosion-proof device mounted on bottom side of oil immersed transformer
CA2520116A1 (en) Pressure relief for current limiter