NL7113906A - - Google Patents

Info

Publication number: NL7113906A
Authority: NL; Netherlands

Application number

NL7113906A

Other versions

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.)

1970-10-12

Filing date

1971-10-11

Publication date

1972-04-14

1971-10-11 Application filed filed Critical

1972-04-14 Publication of NL7113906A publication Critical patent/NL7113906A/xx

1981-04-15 Publication of NL166826B publication Critical patent/NL166826B/xx

1981-09-15 Application granted granted Critical

1981-09-15 Publication of NL166826C publication Critical patent/NL166826C/xx

Links

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
- G01F23/74—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
- 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
- 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
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault

Landscapes

Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Engineering & Computer Science (AREA)
Power Engineering (AREA)
General Physics & Mathematics (AREA)
Level Indicators Using A Float (AREA)
Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Motor Or Generator Cooling System (AREA)

NL7113906.A 1970-10-12 1971-10-11 Buchholzrelais voor elektrische apparaten, die door vloeistof worden gekoeld. NL166826C (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2049972A DE2049972C3 (de)	1970-10-12	1970-10-12	Schutzgerat fur flussigkeitsge kühlte Transformatoren und Drosseln

Publications (3)

Publication Number	Publication Date
NL7113906A true NL7113906A (es)	1972-04-14
NL166826B NL166826B (nl)	1981-04-15
NL166826C NL166826C (nl)	1981-09-15

Family

ID=5784835

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7113906.A NL166826C (nl)	1970-10-12	1971-10-11	Buchholzrelais voor elektrische apparaten, die door vloeistof worden gekoeld.

Country Status (12)

Country	Link
AT (2)	AT306845B (es)
BE (1)	BE773776A (es)
CH (1)	CH524908A (es)
DE (1)	DE2049972C3 (es)
DK (1)	DK137152C (es)
ES (1)	ES198544Y (es)
FI (1)	FI55920C (es)
FR (1)	FR2109996A5 (es)
GB (1)	GB1346633A (es)
NL (1)	NL166826C (es)
NO (1)	NO128042B (es)
SE (1)	SE369805B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS601568B2 (ja) *	1979-06-07	1985-01-16	日産自動車株式会社	液面警報装置
DD207645A3 (de) *	1982-02-04	1984-03-07	Dietrich Kroll	Stauklappe fuer schutzeinrichtungen
FR2684248B1 (fr) *	1991-11-22	1997-04-30	Pioch Sa	Appareil electronique de mesure et de protection du fonctionnement du transformateur a huile.
DE102010008066B3 (de) *	2010-02-16	2011-03-31	Maschinenfabrik Reinhausen Gmbh	Buchholzrelais
CN103620719B (zh) *	2011-06-22	2016-07-13	赖茵豪森机械制造公司	布克霍尔茨继电器
DE202011109908U1 (de)	2011-06-22	2012-06-28	Maschinenfabrik Reinhausen Gmbh	Buchholzrelais
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

1970
- 1970-10-12 DE DE2049972A patent/DE2049972C3/de not_active Expired
1971
- 1971-05-18 GB GB1556471*[A patent/GB1346633A/en not_active Expired
- 1971-10-01 FI FI2746/71A patent/FI55920C/fi active
- 1971-10-04 NO NO03626/71*[A patent/NO128042B/no unknown
- 1971-10-04 DK DK481071A patent/DK137152C/da active
- 1971-10-04 CH CH1442171A patent/CH524908A/de not_active IP Right Cessation
- 1971-10-05 ES ES1971198544U patent/ES198544Y/es not_active Expired
- 1971-10-07 AT AT867471A patent/AT306845B/de not_active IP Right Cessation
- 1971-10-07 AT AT740872A patent/AT314034B/de not_active IP Right Cessation
- 1971-10-08 SE SE12805/71A patent/SE369805B/xx unknown
- 1971-10-11 NL NL7113906.A patent/NL166826C/xx not_active IP Right Cessation
- 1971-10-11 BE BE773776A patent/BE773776A/xx unknown
- 1971-10-12 FR FR7136648A patent/FR2109996A5/fr not_active Expired

Also Published As

Publication number	Publication date
FR2109996A5 (es)	1972-05-26
BE773776A (fr)	1972-01-31
ES198544U (es)	1975-06-16
FI55920C (fi)	1979-10-10
DE2049972B2 (de)	1973-03-01
AT306845B (de)	1973-04-25
DE2049972C3 (de)	1973-09-13
SE369805B (es)	1974-09-16
DK137152C (da)	1978-06-19
NO128042B (es)	1973-09-17
DE2049972A1 (de)	1972-04-13
DK137152B (da)	1978-01-23
NL166826C (nl)	1981-09-15
ES198544Y (es)	1975-11-16
GB1346633A (en)	1974-02-13
CH524908A (de)	1972-06-30
NL166826B (nl)	1981-04-15
AT314034B (de)	1974-03-11
FI55920B (fi)	1979-06-29

Legal Events

Date	Code	Title	Description
1983-06-16	V1	Lapsed because of non-payment of the annual fee

Publication	Publication Date	Title
AU1146470A (es)	1971-08-19
AU1473870A (es)	1971-11-11
AU2044470A (es)	1972-03-30
AU2130570A (es)	1972-04-27
AU1326870A (es)	1971-10-28
AU1336970A (es)	1971-10-07
AU1517670A (es)	1971-11-18
AU1716970A (es)	1972-01-06
AU1833270A (es)	1972-02-10
AU2017870A (es)	1972-03-23
AU2085370A (es)	1972-04-13
AU1881070A (es)	1972-02-17
AU1789870A (es)	1972-01-27
AU2119370A (es)	1972-04-20
AU2115870A (es)	1972-04-20
AU2112570A (es)	1972-04-20
AU2131570A (es)	1972-04-27
AU2061170A (es)	1972-04-13
AU2144270A (es)	1972-04-27
AU1189670A (es)	1971-02-18
AU1974970A (es)	1972-03-16
AU1969370A (es)	1972-03-16
AU1943370A (es)	1972-03-09
AU1918570A (es)	1972-03-02
AU1235770A (es)	1971-09-16