GB1283766A - Electrical inductive apparatus - Google Patents
Electrical inductive apparatusInfo
- Publication number
- GB1283766A GB1283766A GB46091/69A GB4609169A GB1283766A GB 1283766 A GB1283766 A GB 1283766A GB 46091/69 A GB46091/69 A GB 46091/69A GB 4609169 A GB4609169 A GB 4609169A GB 1283766 A GB1283766 A GB 1283766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuse
- arc
- liner
- gases
- fuse assembly
- Prior art date
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/43—Means for exhausting or absorbing gases liberated by fusing arc, or for ventilating excess pressure generated by heating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fuses (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
1283766 Fusible cut-outs WESTINGHOUSE ELECTRIC CORP 18 Sept 1969 [1 Oct 1968] 46091/69 Heading H2G [Also in Division H1] A fuse assembly suitable for use in a liquid immersed transformer comprises an elongate tubular housing 174, formed of an insulating material, having electrodes 180, 182 disposed at the tube ends 176, 178 respectively. A solid liner, 184, of water vapour evolving arc quenching material such as boric acid extends along the length of the tube defining a square or rectangular cross-section arc passageway through which the fuse element 189 extends. The fuse assembly is sealed at one or both ends by frangible seals 191, 192 held in place by the electrodes 180, 182 which have openings axially aligned with the arc passageway such that, when an overcurrent of about a factor of ten occurs, the element 189 melts and an arc occurs along the length of the passageway resulting in the production of gases by the inorganic liner, including steam, which result in the fracture of the frangible seals and an escape of the gases from one or both ends of the tube, which in the process extinguishes the arc. A sub-liner, 190, may be provided which is of arc quenching material such as polyvinyl chloride which does not liberate water vapour when subject to the heat of an arc, the purpose of this liner being to extinguish arcs caused by overcurrents of between three to six times the normal load without breaking the frangible seals. In a further embodiment the fuse 92 (Fig. 3) is mounted inside a "plug in" type fuse holder 102 which includes an insulating receptacle 104 and a removable portion 106 to which the fuse assembly 92 is attached. The fuse 92 used in this embodiment is similar in internal construction to the one described except that it contains no frangible members being firmly sealed at its upper end and open at its lower end where it fits into a removable condenser 140 such that the gases discharged from the fuse assembly 92 will be confined to the condenser which may include copper screens 142 for causing the ejected steam to condense. Such an arrangement is useful when the fuse assembly is immersed in a liquid filled transformer as the gases are prevented from contaminating the liquid dielectric.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76409268A | 1968-10-01 | 1968-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1283766A true GB1283766A (en) | 1972-08-02 |
Family
ID=25069656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB46091/69A Expired GB1283766A (en) | 1968-10-01 | 1969-09-18 | Electrical inductive apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US3588606A (en) |
BE (1) | BE739509A (en) |
ES (1) | ES371804A1 (en) |
FR (1) | FR2019596B1 (en) |
GB (1) | GB1283766A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3827011A (en) * | 1973-03-08 | 1974-07-30 | Westinghouse Electric Corp | Fuse assembly for oil-filled transformers |
US3916258A (en) * | 1974-04-08 | 1975-10-28 | Kuhlman Corp | Fuse holder assembly |
US3916259A (en) * | 1974-04-08 | 1975-10-28 | Kuhlman Corp | Fuse holder assembly |
US4002949A (en) * | 1975-11-13 | 1977-01-11 | Kearney-National, Inc. | Transformer protective system |
US4170000A (en) * | 1976-05-27 | 1979-10-02 | Trayer Frank C | Method and apparatus for fusing electrical power equipment enclosed in a tank and surrounded by insulating fluid |
NL191811C (en) * | 1980-09-30 | 1996-08-02 | Soc Corp | Melt safety. |
EP0305314A1 (en) * | 1987-08-18 | 1989-03-01 | A.B. Chance Company | Pultruded or filament wound synthetic resin fuse tube |
US4987511A (en) * | 1988-03-07 | 1991-01-22 | Cooper Industries, Inc. | Gapped arrester |
US20040257739A1 (en) * | 2003-06-19 | 2004-12-23 | Rencsok Joel A. | Safety disconnect unit with service recpetacle for mechanical and electrical systems |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1971819A (en) * | 1930-09-20 | 1934-08-28 | Westinghouse Electric & Mfg Co | High voltage expulsion fuse |
US2184760A (en) * | 1937-11-12 | 1939-12-26 | Westinghouse Electric & Mfg Co | Circuit interrupter |
US2283656A (en) * | 1939-10-07 | 1942-05-19 | Westinghouse Electric & Mfg Co | Circuit interrupter |
US2918557A (en) * | 1958-05-15 | 1959-12-22 | R T & E Corp | Circuit breaker |
US3255383A (en) * | 1963-01-29 | 1966-06-07 | Westinghouse Electric Corp | Fuse containing means responsive to large fault currents and means responsive to small continuous overloads |
US3365616A (en) * | 1965-04-01 | 1968-01-23 | Gen Electric | Overvoltage protection system for electrical apparatus with current limiting fuse and removable oil fuse in series on line side |
US3230331A (en) * | 1965-04-26 | 1966-01-18 | S & C Electric Co | Circuit interrupter construction with improved condenser |
-
1968
- 1968-10-01 US US764092A patent/US3588606A/en not_active Expired - Lifetime
-
1969
- 1969-09-18 GB GB46091/69A patent/GB1283766A/en not_active Expired
- 1969-09-23 ES ES371804A patent/ES371804A1/en not_active Expired
- 1969-09-29 BE BE739509D patent/BE739509A/xx not_active IP Right Cessation
- 1969-09-30 FR FR696933386A patent/FR2019596B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2019596A1 (en) | 1970-07-03 |
BE739509A (en) | 1970-03-31 |
FR2019596B1 (en) | 1973-04-06 |
ES371804A1 (en) | 1972-03-16 |
US3588606A (en) | 1971-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |