NL277398A - - Google Patents

Info

Publication number: NL277398A
Authority: NL; Netherlands

Application number

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.)

1961-07-29

Publication of NL277398A publication Critical patent/NL277398A/xx

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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/55—Oil reservoirs or tanks; Lowering means therefor
- H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
- 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
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Measuring Volume Flow (AREA)

NL277398D 1961-07-29 NL277398A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DES0075085		1961-07-29

Publications (1)

Publication Number	Publication Date
NL277398A true NL277398A (enrdf_load_html_response)

Family

ID=7505122

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL277398D NL277398A (enrdf_load_html_response)	1961-07-29

Country Status (5)

Country	Link
JP (1)	JPS393012Y1 (enrdf_load_html_response)
BE (1)	BE620119A (enrdf_load_html_response)
CH (1)	CH399585A (enrdf_load_html_response)
GB (1)	GB1000727A (enrdf_load_html_response)
NL (1)	NL277398A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2688081B1 (en) *	2012-07-20	2015-11-04	ABB Technology AG	Safety device for a power transformer, and related power transformer using such a safety device

0
- NL NL277398D patent/NL277398A/xx unknown
- BE BE620119D patent/BE620119A/xx unknown
1962
- 1962-03-28 CH CH370662A patent/CH399585A/de unknown
- 1962-07-27 GB GB2905562A patent/GB1000727A/en not_active Expired
- 1962-07-30 JP JP4260462U patent/JPS393012Y1/ja not_active Expired

Also Published As

Publication number	Publication date
BE620119A (enrdf_load_html_response)
CH399585A (de)	1965-09-30
GB1000727A (en)	1965-08-11
JPS393012Y1 (enrdf_load_html_response)	1964-02-07

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BE599922A (enrdf_load_html_response)	1961-05-29