GB1123200A - Detection of faults in electrical induction furnaces - Google Patents

Detection of faults in electrical induction furnaces

Info

Publication number
GB1123200A
GB1123200A GB53172/65A GB5317265A GB1123200A GB 1123200 A GB1123200 A GB 1123200A GB 53172/65 A GB53172/65 A GB 53172/65A GB 5317265 A GB5317265 A GB 5317265A GB 1123200 A GB1123200 A GB 1123200A
Authority
GB
United Kingdom
Prior art keywords
coil
cover
relay
turns
indicator
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
Application number
GB53172/65A
Other languages
English (en)
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.)
ALLMAENNA SVENSKA ELECTRISKA A
Original Assignee
ALLMAENNA SVENSKA ELECTRISKA A
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.)
Filing date
Publication date
Application filed by ALLMAENNA SVENSKA ELECTRISKA A filed Critical ALLMAENNA SVENSKA ELECTRISKA A
Publication of GB1123200A publication Critical patent/GB1123200A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00Crucible or pot furnaces
    • F27B14/08Details peculiar to crucible or pot furnaces
    • F27B14/14Arrangements of heating devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00Arrangement of elements for electric heating in or on furnaces
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/22Furnaces without an endless core
    • H05B6/24Crucible furnaces
    • H05B6/28Protective systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • General Induction Heating (AREA)
  • Furnace Details (AREA)
GB53172/65A 1964-12-16 1965-12-15 Detection of faults in electrical induction furnaces Expired GB1123200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15196/64A SE313129B (pt) 1964-12-16 1964-12-16

Publications (1)

Publication Number Publication Date
GB1123200A true GB1123200A (en) 1968-08-14

Family

ID=20300294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53172/65A Expired GB1123200A (en) 1964-12-16 1965-12-15 Detection of faults in electrical induction furnaces

Country Status (5)

Country Link
US (1) US3414660A (pt)
DE (1) DE1565284B2 (pt)
FR (1) FR1469037A (pt)
GB (1) GB1123200A (pt)
SE (1) SE313129B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780250A (en) * 1971-11-02 1973-12-18 Chisso Corp Apparatus for heating the surface of constructions
SE372870B (pt) * 1973-05-18 1975-01-13 Asea Ab
US4486641A (en) * 1981-12-21 1984-12-04 Ruffini Robert S Inductor, coating and method
US5418811A (en) * 1992-04-08 1995-05-23 Fluxtrol Manufacturing, Inc. High performance induction melting coil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1801791A (en) * 1930-03-05 1931-04-21 Westinghouse Electric & Mfg Co Induction-furnace protective circuits
US2614200A (en) * 1950-08-11 1952-10-14 Western Electric Co Leak detector for immersion heaters
US2990542A (en) * 1958-04-11 1961-06-27 Ajax Magnethermic Corp Protective device for induction furnaces
US3185894A (en) * 1960-08-17 1965-05-25 Asea Ab Means for indicating faults in the crucible of induction melting furnaces
US3214637A (en) * 1962-04-09 1965-10-26 Asea Ab Device for indicating the ceasing of super-conductivity

Also Published As

Publication number Publication date
DE1565284A1 (de) 1970-01-15
FR1469037A (fr) 1967-02-10
US3414660A (en) 1968-12-03
SE313129B (pt) 1969-08-04
DE1565284B2 (de) 1971-10-07

Similar Documents

Publication Publication Date Title
US3944888A (en) Selective tripping of two-pole ground fault interrupter
GB1169706A (en) An Electrical Fault Detector
GB1409287A (en) Ground fault indicator device
GB1236082A (en) A system of overload protection by using superconducting conductors
GB1123200A (en) Detection of faults in electrical induction furnaces
GB1031932A (en) A protective device for a super-conductor
GB1250854A (pt)
US2929963A (en) Protective relaying system for direct current equipment
GB1221409A (en) A feeder and abnormality detecting circuit for an elongated heat-generating apparatus
GB929008A (en) Improved means for indicating faults in the crucible or heating chamber of an electric induction heating furnace
GB1097809A (en) Improved circuit breaker control system
US2368084A (en) Protector
GB981892A (en) Earth fault circuit-breaker
GB1189246A (en) Series Capacitor Installation for an Alternating Current Line
US3148308A (en) Transformer
GB1020101A (en) Unbalanced current protection system for use with paralleled generators
SU389560A1 (ru) Коммутационный аппарат
SU528661A1 (ru) Устройство дл защиты линий св зи от опасного индуктируемого вли ни линий сильного тока
GB1124947A (en) Safety arrangement for electric cookers
GB1043595A (en) Overheating and earth-fault protection system for electric motors and transformers
GB912870A (en) Improved circuit arrangement for detecting earth leakage
GB540973A (en) Improvements in or relating to electric protective systems
GB970295A (en) Improvements in or relating to earth fault protection for electrical supply systems
GB758551A (en) Improvements in and relating to protective systems for electric induction furnace installations
GB1125714A (en) Improved electrical safety circuit