IT1161859B - Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezione - Google Patents
Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezioneInfo
- Publication number
- IT1161859B IT1161859B IT19200/83A IT1920083A IT1161859B IT 1161859 B IT1161859 B IT 1161859B IT 19200/83 A IT19200/83 A IT 19200/83A IT 1920083 A IT1920083 A IT 1920083A IT 1161859 B IT1161859 B IT 1161859B
- Authority
- IT
- Italy
- Prior art keywords
- protection
- electrical appliances
- liquid cooled
- cooled electrical
- protection device
- Prior art date
Links
Classifications
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability
- H01H37/585—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability the switch being of the reed switch type
-
- 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)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Motor Or Generator Cooling System (AREA)
- Housings And Mounting Of Transformers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD23915182 | 1982-04-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8319200A0 IT8319200A0 (it) | 1983-01-20 |
IT8319200A1 IT8319200A1 (it) | 1984-07-20 |
IT1161859B true IT1161859B (it) | 1987-03-18 |
Family
ID=5538027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19200/83A IT1161859B (it) | 1982-04-21 | 1983-01-20 | Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezione |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3248274A1 (it) |
IT (1) | IT1161859B (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004008026B4 (de) * | 2004-02-19 | 2008-06-05 | Elektromotoren und Gerätebau Barleben GmbH | Transformatoren-Schutzrelais |
-
1982
- 1982-12-28 DE DE19823248274 patent/DE3248274A1/de not_active Withdrawn
-
1983
- 1983-01-20 IT IT19200/83A patent/IT1161859B/it active
Also Published As
Publication number | Publication date |
---|---|
IT8319200A0 (it) | 1983-01-20 |
IT8319200A1 (it) | 1984-07-20 |
DE3248274A1 (de) | 1983-10-27 |
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