JPS55138214A - Lightning-proof transformer - Google Patents

Lightning-proof transformer

Info

Publication number
JPS55138214A
JPS55138214A JP4303479A JP4303479A JPS55138214A JP S55138214 A JPS55138214 A JP S55138214A JP 4303479 A JP4303479 A JP 4303479A JP 4303479 A JP4303479 A JP 4303479A JP S55138214 A JPS55138214 A JP S55138214A
Authority
JP
Japan
Prior art keywords
coil
series
high voltage
resistor elements
transformer
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.)
Granted
Application number
JP4303479A
Other languages
Japanese (ja)
Other versions
JPS5850010B2 (en
Inventor
Iwao Oshima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4303479A priority Critical patent/JPS5850010B2/en
Publication of JPS55138214A publication Critical patent/JPS55138214A/en
Publication of JPS5850010B2 publication Critical patent/JPS5850010B2/en
Expired 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/343—Preventing or reducing surge voltages; oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Regulation Of General Use Transformers (AREA)

Abstract

PURPOSE:To protect a coil from steep-wave lightning impulse voltage by a method wherein a plurality of series-connected nonlinear resistor elements are connected to a high voltage coil of a transformer, and the series-connected resistor elements are connected to each section of the coil. CONSTITUTION:A low voltage coil 12 is wound on an iron core 11. On the outer side of this, continuous disk-shaped high voltage coil 15 is provided. On line-side high voltage terminal 16 of the coil 15, an electrostatic shield 13 of the same potential as this is provided. Next, a series-connected nonlinear resistor elements 7-1- 7-7 consisting mainly of metal oxide are arranged in series between the terminal 16 and the coil 15. The connecting part of each element 7-1-7-7 is connected to each section unit of the coil 15. By this, it is possible to check steep-wave lightning impulse voltage from entering the coil 15, and at the same time, to improve the potential distribution inside the coil, so that the lifetime of the transformer is lengthened.
JP4303479A 1979-04-11 1979-04-11 Lightning type transformer Expired JPS5850010B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4303479A JPS5850010B2 (en) 1979-04-11 1979-04-11 Lightning type transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4303479A JPS5850010B2 (en) 1979-04-11 1979-04-11 Lightning type transformer

Publications (2)

Publication Number Publication Date
JPS55138214A true JPS55138214A (en) 1980-10-28
JPS5850010B2 JPS5850010B2 (en) 1983-11-08

Family

ID=12652637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4303479A Expired JPS5850010B2 (en) 1979-04-11 1979-04-11 Lightning type transformer

Country Status (1)

Country Link
JP (1) JPS5850010B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078985A1 (en) * 1981-11-09 1983-05-18 General Electric Company Internal voltage grading and transient voltage protection for power transformer windings
JPS59127817A (en) * 1983-01-13 1984-07-23 Denken Seiki Kenkyusho:Kk Noiseless transformer
US4604673A (en) * 1984-05-14 1986-08-05 General Electric Company Distribution transformer with surge protection device
CN111128529A (en) * 2019-12-24 2020-05-08 保定天威保变电气股份有限公司 Dual-continuous-correction type net side winding structure of UPFC engineering series transformer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH043856Y2 (en) * 1985-06-22 1992-02-05

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078985A1 (en) * 1981-11-09 1983-05-18 General Electric Company Internal voltage grading and transient voltage protection for power transformer windings
JPS59127817A (en) * 1983-01-13 1984-07-23 Denken Seiki Kenkyusho:Kk Noiseless transformer
JPH041488B2 (en) * 1983-01-13 1992-01-13 Denken Seiki Kenkyusho Kk
US4604673A (en) * 1984-05-14 1986-08-05 General Electric Company Distribution transformer with surge protection device
CN111128529A (en) * 2019-12-24 2020-05-08 保定天威保变电气股份有限公司 Dual-continuous-correction type net side winding structure of UPFC engineering series transformer

Also Published As

Publication number Publication date
JPS5850010B2 (en) 1983-11-08

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