AT306845B - Device for monitoring gas formation and changes in liquid level for liquid-cooled electrical apparatus - Google Patents
Device for monitoring gas formation and changes in liquid level for liquid-cooled electrical apparatusInfo
- Publication number
- AT306845B AT306845B AT867471A AT867471A AT306845B AT 306845 B AT306845 B AT 306845B AT 867471 A AT867471 A AT 867471A AT 867471 A AT867471 A AT 867471A AT 306845 B AT306845 B AT 306845B
- Authority
- AT
- Austria
- Prior art keywords
- liquid
- changes
- electrical apparatus
- gas formation
- monitoring gas
- Prior art date
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)
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 |
---|---|
AT306845B true AT306845B (en) | 1973-04-25 |
Family
ID=5784835
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT867471A AT306845B (en) | 1970-10-12 | 1971-10-07 | Device for monitoring gas formation and changes in liquid level for liquid-cooled electrical apparatus |
AT740872A AT314034B (en) | 1970-10-12 | 1971-10-07 | Device for monitoring gas formation and changes in liquid level for liquid-cooled electrical apparatus |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT740872A AT314034B (en) | 1970-10-12 | 1971-10-07 | Device for monitoring gas formation and changes in liquid level for liquid-cooled electrical 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993010587A1 (en) * | 1991-11-22 | 1993-05-27 | Pioch S.A. | Electronic apparatus for measuring the activity of an oil transformer |
Families Citing this family (6)
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 |
DE102010008066B3 (en) * | 2010-02-16 | 2011-03-31 | Maschinenfabrik Reinhausen Gmbh | Buchholz relay |
CN103620719B (en) * | 2011-06-22 | 2016-07-13 | 赖茵豪森机械制造公司 | Buchholz relay |
DE202011109908U1 (en) | 2011-06-22 | 2012-06-28 | Maschinenfabrik Reinhausen Gmbh | Buchholz relay |
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/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 NO NO03626/71*[A patent/NO128042B/no unknown
- 1971-10-04 DK DK481071A patent/DK137152C/en active
- 1971-10-04 CH CH1442171A patent/CH524908A/en not_active IP Right Cessation
- 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 NL NL7113906.A patent/NL166826C/en not_active IP Right Cessation
- 1971-10-11 BE BE773776A patent/BE773776A/en unknown
- 1971-10-12 FR FR7136648A patent/FR2109996A5/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993010587A1 (en) * | 1991-11-22 | 1993-05-27 | Pioch S.A. | Electronic apparatus for measuring the activity of an oil transformer |
FR2684248A1 (en) * | 1991-11-22 | 1993-05-28 | Pioch Sa | ELECTRONIC APPARATUS FOR MEASURING AND PROTECTING THE OPERATION OF THE OIL TRANSFORMER. |
US5534853A (en) * | 1991-11-22 | 1996-07-09 | Pioch S.A. | Electronic apparatus for measuring the parameters of an oil transformer |
Also Published As
Publication number | Publication date |
---|---|
FR2109996A5 (en) | 1972-05-26 |
BE773776A (en) | 1972-01-31 |
ES198544U (en) | 1975-06-16 |
FI55920C (en) | 1979-10-10 |
DE2049972B2 (en) | 1973-03-01 |
DE2049972C3 (en) | 1973-09-13 |
SE369805B (en) | 1974-09-16 |
DK137152C (en) | 1978-06-19 |
NO128042B (en) | 1973-09-17 |
DE2049972A1 (en) | 1972-04-13 |
NL7113906A (en) | 1972-04-14 |
DK137152B (en) | 1978-01-23 |
NL166826C (en) | 1981-09-15 |
ES198544Y (en) | 1975-11-16 |
GB1346633A (en) | 1974-02-13 |
CH524908A (en) | 1972-06-30 |
NL166826B (en) | 1981-04-15 |
AT314034B (en) | 1974-03-11 |
FI55920B (en) | 1979-06-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT263726B (en) | Contact apparatus for a liquid and a gas | |
FR2286521A1 (en) | ELECTRICAL CONNECTOR APPARATUS AND METHOD FOR ITS USE | |
AT271398B (en) | Device for bringing liquids and gases into contact | |
ATA624173A (en) | ELECTRIC GAS TREATMENT DEVICE | |
DE2035628B2 (en) | CIRCUIT ARRANGEMENT FOR MONITORING AN AC VOLTAGE NETWORK | |
AT351842B (en) | CIRCUIT ARRANGEMENT FOR DETERMINING AND LOCATING LEAKS IN ELECTRICALLY CONDUCTIVE PIPELINE SECTIONS | |
AT306845B (en) | Device for monitoring gas formation and changes in liquid level for liquid-cooled electrical apparatus | |
AT317159B (en) | Device for contacting gas and liquid | |
IT1017625B (en) | DEVICE FOR DETERMINING THE CONTENT OF SPECIES GAS IN CONDUCTIVE AND SEMICONDUCTIVE ELEMENTS AND IN COMPOSED OF SUCH ELEMENTS | |
GB1347889A (en) | Peak concentration selecting circuit in gas concentration monitoring apparatus | |
FR2283568A1 (en) | DEVICE FOR CONNECTING CONDUCTORS IN AN ELECTRICAL DEVICE | |
CH529480A (en) | Method for the electrical coding of information and device for carrying out the method | |
CH545163A (en) | Method and device for monitoring electrical resistance welds | |
IT951291B (en) | PROCEDURE AND DEVICE FOR MEASURING ELECTRICAL RESISTANCE | |
IT975316B (en) | PROCEDURE AND DEVICE FOR TESTING TELESCRIVEN TI TERMINALS | |
CH509596A (en) | Low-voltage test method and device for the determination of pore defects in the plastic insulation of electrical cables | |
CH519799A (en) | Terminal for electrical apparatus | |
AT300072B (en) | Electrical contact device | |
AT307044B (en) | Process for encasing electrical and electronic components | |
FR2295376A1 (en) | METHOD AND DEVICE FOR SHARING A LIQUID-GAS MIXING CURRENT INTO SEVERAL PARTIAL CURRENTS | |
CH461961A (en) | Liquid pumping device and method of operating the device | |
CH474888A (en) | Device for monitoring high-voltage converter arrangements | |
SE397587B (en) | METHOD DEVICE FOR DETERMINING THE AVERAGE VOLUME OF IN AN ELECTROLYTIC CONDUCTIVE LIQUID SUSPENDED PARTICLES | |
CH531724A (en) | Device for testing electrical circuits and circuit arrangements | |
CH558004A (en) | DEVICE FOR DISPLAY USING ACCUMULATED ELECTRICAL CURRENT. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |