JPS5635402A - Power transformer - Google Patents

Power transformer

Info

Publication number
JPS5635402A
JPS5635402A JP11073579A JP11073579A JPS5635402A JP S5635402 A JPS5635402 A JP S5635402A JP 11073579 A JP11073579 A JP 11073579A JP 11073579 A JP11073579 A JP 11073579A JP S5635402 A JPS5635402 A JP S5635402A
Authority
JP
Japan
Prior art keywords
winding
circuit breaker
power transformer
primary winding
primary
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.)
Pending
Application number
JP11073579A
Other languages
Japanese (ja)
Inventor
Seiichi Hosoda
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP11073579A priority Critical patent/JPS5635402A/en
Priority to EP80303007A priority patent/EP0024934A1/en
Publication of JPS5635402A publication Critical patent/JPS5635402A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • 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
    • 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
    • H01F2027/406—Temperature sensor or protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Fuses (AREA)

Abstract

PURPOSE: To surely open a circuit including a power transformer whose primary winding is connected in series with a thermosensitive circuit breaker, by selecting the resistance of the primary and secondary windings of the power transformer so that the temperature rise of the primary winding is larger than that of the secondary one when an overcurrent flows.
CONSTITUTION: A secondary winding 3 is provided around a core 4. A thermosensitive circuit breaker 6 made of a temperature fuse is installed on the outside of the secondary winding. A primary winding 2 is provided outside the secondary winding 3 and the circuit breaker 6. This circuit breaker is connected between an end of the winding 2 and one terminal 5. A commercial power source 10 is coupled across the terminal 5 and another one 7. A prescribed load 11 is connected across two other terminals 8, 9. The resistance of each of the windings 2, 3 is so set that the temperature rise of the winding 2 is larger than that of the other winding 3 when an overcurrent flows due to a short circuit in the load 11 or across the terminals 8, 9. In that case, the circuit breaker 6 is quickly operated to open the primary winding 2 to prevent a power transformer 1 from burning.
COPYRIGHT: (C)1981,JPO&Japio
JP11073579A 1979-08-30 1979-08-30 Power transformer Pending JPS5635402A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11073579A JPS5635402A (en) 1979-08-30 1979-08-30 Power transformer
EP80303007A EP0024934A1 (en) 1979-08-30 1980-08-29 Power transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11073579A JPS5635402A (en) 1979-08-30 1979-08-30 Power transformer

Publications (1)

Publication Number Publication Date
JPS5635402A true JPS5635402A (en) 1981-04-08

Family

ID=14543182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11073579A Pending JPS5635402A (en) 1979-08-30 1979-08-30 Power transformer

Country Status (2)

Country Link
EP (1) EP0024934A1 (en)
JP (1) JPS5635402A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079949U (en) * 1983-11-09 1985-06-03 有限会社ミナギ技研 Adjustment plate lifting device in automatic pig feeder
JPH01101343U (en) * 1987-12-28 1989-07-07
CN105513773A (en) * 2015-12-11 2016-04-20 深圳市瑞凌实业股份有限公司 Transformer, integrated transformer circuit and inverter welding machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1200585A (en) * 1997-05-22 1998-12-02 张旭俊 Three phase non-disturbed type distribution transformer and switching combination arrangement
CN105845421A (en) * 2016-06-17 2016-08-10 国家电网公司 Current transformer device for high-precision current-voltage conversion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH131199A (en) * 1928-08-10 1929-01-31 Moser Glaser & Co Overload and short-circuit-proof small electrical transformer.
US1972319A (en) * 1933-05-18 1934-09-04 Albert B Rypinski Coil for slow electromagnets and reactors
US3287599A (en) * 1964-04-06 1966-11-22 Advance Transformer Co Fault indicating fluorescent ballast apparatus
AU2174870A (en) * 1969-11-03 1972-05-04 V. & E. Friedland Limited Improvements in protective arrangements for transformers
US3700965A (en) * 1970-02-04 1972-10-24 Tokyo Keideniki Kk Transformer shorting device
US3992690A (en) * 1975-01-31 1976-11-16 The Garrett Corporation Composite electromagnetic coil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079949U (en) * 1983-11-09 1985-06-03 有限会社ミナギ技研 Adjustment plate lifting device in automatic pig feeder
JPH01101343U (en) * 1987-12-28 1989-07-07
CN105513773A (en) * 2015-12-11 2016-04-20 深圳市瑞凌实业股份有限公司 Transformer, integrated transformer circuit and inverter welding machine

Also Published As

Publication number Publication date
EP0024934A1 (en) 1981-03-11

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