GB1346633A - Protective appliance for liquid-cooled electric apparatus - Google Patents

Protective appliance for liquid-cooled electric apparatus

Info

Publication number: GB1346633A
Authority: GB; United Kingdom
Prior art keywords: liquid; electric apparatus; cooled electric; protective appliance; appliance
Prior art date: 1970-10-12
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.): Expired

Application number

GB1556471*[A

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.)

Transformatoren Union AG

Original Assignee

Transformatoren Union AG

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

1971-05-18

Publication date

1974-02-13

1971-05-18 Application filed by Transformatoren Union AG filed Critical Transformatoren Union AG

1974-02-13 Publication of GB1346633A publication Critical patent/GB1346633A/en

Status Expired legal-status Critical Current

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)
Motor Or Generator Cooling System (AREA)
Switches That Are Operated By Magnetic Or Electric Fields (AREA)

GB1556471*[A 1970-10-12 1971-05-18 Protective appliance for liquid-cooled electric apparatus Expired GB1346633A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2049972A DE2049972C3 (en)	1970-10-12	1970-10-12	Protection device for liquid-cooled transformers and chokes

Publications (1)

Publication Number	Publication Date
GB1346633A true GB1346633A (en)	1974-02-13

Family

ID=5784835

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB1556471*[A Expired GB1346633A (en)	1970-10-12	1971-05-18	Protective appliance for liquid-cooled electric apparatus

Country Status (12)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104488056A (en) *	2012-07-20	2015-04-01	Abb技术有限公司	Safety device for a power transformer, and related power transformer using such a safety device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS601568B2 (en) *	1979-06-07	1985-01-16	日産自動車株式会社	Liquid level alarm device
DD207645A3 (en) *	1982-02-04	1984-03-07	Dietrich Kroll	STORAGE FLAP FOR PROTECTIVE EQUIPMENT
FR2684248B1 (en) *	1991-11-22	1997-04-30	Pioch Sa	ELECTRONIC APPARATUS FOR MEASURING AND PROTECTING THE OPERATION OF THE OIL TRANSFORMER.
DE102010008066B3 (en)	2010-02-16	2011-03-31	Maschinenfabrik Reinhausen Gmbh	Buchholz relay
EP2724357B1 (en)	2011-06-22	2016-03-16	Maschinenfabrik Reinhausen GmbH	Buchholz relay
DE202011109908U1 (en)	2011-06-22	2012-06-28	Maschinenfabrik Reinhausen Gmbh	Buchholz relay

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104488056A (en) *	2012-07-20	2015-04-01	Abb技术有限公司	Safety device for a power transformer, and related power transformer using such a safety device
CN104488056B (en) *	2012-07-20	2017-05-31	Abb技术有限公司	Safety means for power transformer and the associate power transformer using the safety means

Also Published As

Publication number	Publication date
DK137152B (en)	1978-01-23
NL7113906A (en)	1972-04-14
AT306845B (en)	1973-04-25
NO128042B (en)	1973-09-17
NL166826B (en)	1981-04-15
DE2049972B2 (en)	1973-03-01
BE773776A (en)	1972-01-31
FR2109996A5 (en)	1972-05-26
DE2049972C3 (en)	1973-09-13
DE2049972A1 (en)	1972-04-13
SE369805B (en)	1974-09-16
FI55920C (en)	1979-10-10
AT314034B (en)	1974-03-11
ES198544Y (en)	1975-11-16
FI55920B (en)	1979-06-29
CH524908A (en)	1972-06-30
DK137152C (en)	1978-06-19
ES198544U (en)	1975-06-16
NL166826C (en)	1981-09-15

Legal Events

Date	Code	Title	Description
1974-07-03	PS	Patent sealed
1983-12-29	PCNP	Patent ceased through non-payment of renewal fee

Publication	Publication Date	Title
MY7300135A (en)	1973-12-31	Electric fan
IT1025121B (en)	1978-08-10	DEVICE FOR COOLING AN ELECTRIC CABLE
MY7400277A (en)	1974-12-31	Electric fans
IE35048B1 (en)	1975-10-29	Fractional-horsepower electrical motors
CA947376A (en)	1974-05-14	Electrical inductive apparatus with removable protective fuse
IL35979A0 (en)	1971-03-24	Electric connector device
CS178860B2 (en)	1977-10-31	Cooling apparatus
ZA697377B (en)	1971-05-27	Improvements relating to electric battery-charging apparatus
GB1346633A (en)	1974-02-13	Protective appliance for liquid-cooled electric apparatus
ZA71856B (en)	1971-10-27	Appliance for electric accumulators
AU2026470A (en)	1972-03-30	Electrical apparatus
IL36005A (en)	1973-08-29	Electrical heating apparatus
ZA72316B (en)	1972-09-27	Dynamo electric machines
ZA713134B (en)	1972-01-26	Electric cables
GB1348888A (en)	1974-03-27	Electrical reactance components
IL36928A0 (en)	1971-07-28	Multiconductor electric cables
ZA72281B (en)	1972-10-25	Dynamo electric machines
GB1373942A (en)	1974-11-13	Electric typewriters
ZA713225B (en)	1972-02-23	Electric kettle
ZA716652B (en)	1972-06-28	Electric cables
IL40316A0 (en)	1972-11-28	Electric generator
CA849656A (en)	1970-08-18	Electric heating apparatus and enclosure therefor
AU443463B2 (en)	1972-07-27	Electrical heating apparatus
CA32026S (en)	1970-01-12	Electric unit heater
CA839932A (en)	1970-04-21	Control apparatus for electric alternators