NO128042B - - Google Patents
Download PDFInfo
- Publication number
- NO128042B NO128042B NO03626/71*[A NO362671A NO128042B NO 128042 B NO128042 B NO 128042B NO 362671 A NO362671 A NO 362671A NO 128042 B NO128042 B NO 128042B
- Authority
- NO
- Norway
- Prior art keywords
- float
- switch
- contact
- protective
- permanent magnet
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 claims description 34
- 230000005291 magnetic effect Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 2
- 239000002775 capsule Substances 0.000 description 5
- 208000034699 Vitreous floaters Diseases 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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 (de) | 1970-10-12 | 1970-10-12 | Schutzgerat fur flussigkeitsge kühlte Transformatoren und Drosseln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO128042B true NO128042B (enExample) | 1973-09-17 |
Family
ID=5784835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO03626/71*[A NO128042B (enExample) | 1970-10-12 | 1971-10-04 |
Country Status (12)
| Country | Link |
|---|---|
| AT (2) | AT306845B (enExample) |
| BE (1) | BE773776A (enExample) |
| CH (1) | CH524908A (enExample) |
| DE (1) | DE2049972C3 (enExample) |
| DK (1) | DK137152C (enExample) |
| ES (1) | ES198544Y (enExample) |
| FI (1) | FI55920C (enExample) |
| FR (1) | FR2109996A5 (enExample) |
| GB (1) | GB1346633A (enExample) |
| NL (1) | NL166826C (enExample) |
| NO (1) | NO128042B (enExample) |
| SE (1) | SE369805B (enExample) |
Families Citing this family (7)
| 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 |
| DE202011109908U1 (de) | 2011-06-22 | 2012-06-28 | Maschinenfabrik Reinhausen Gmbh | Buchholzrelais |
| WO2012175252A1 (de) | 2011-06-22 | 2012-12-27 | Maschinenfabrik Reinhausen Gmbh | Buchholzrelais |
| ES2560814T3 (es) * | 2012-07-20 | 2016-02-22 | Abb Technology Ag | Dispositivo de seguridad para un transformador de energía, y transformador de energía relacionado que usa dicho dispositivo de seguridad |
-
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 DK DK481071A patent/DK137152C/da active
- 1971-10-04 CH CH1442171A patent/CH524908A/de not_active IP Right Cessation
- 1971-10-04 NO NO03626/71*[A patent/NO128042B/no unknown
- 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 BE BE773776A patent/BE773776A/xx unknown
- 1971-10-11 NL NL7113906.A patent/NL166826C/xx not_active IP Right Cessation
- 1971-10-12 FR FR7136648A patent/FR2109996A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK137152C (da) | 1978-06-19 |
| DE2049972C3 (de) | 1973-09-13 |
| DK137152B (da) | 1978-01-23 |
| DE2049972B2 (de) | 1973-03-01 |
| NL7113906A (enExample) | 1972-04-14 |
| FI55920B (fi) | 1979-06-29 |
| AT314034B (de) | 1974-03-11 |
| BE773776A (fr) | 1972-01-31 |
| CH524908A (de) | 1972-06-30 |
| ES198544U (es) | 1975-06-16 |
| NL166826B (nl) | 1981-04-15 |
| FI55920C (fi) | 1979-10-10 |
| FR2109996A5 (enExample) | 1972-05-26 |
| SE369805B (enExample) | 1974-09-16 |
| GB1346633A (en) | 1974-02-13 |
| DE2049972A1 (de) | 1972-04-13 |
| ES198544Y (es) | 1975-11-16 |
| NL166826C (nl) | 1981-09-15 |
| AT306845B (de) | 1973-04-25 |
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