JPS5648121A - Master-slave type transformer with tertiary winding for instrumentation - Google Patents

Master-slave type transformer with tertiary winding for instrumentation

Info

Publication number
JPS5648121A
JPS5648121A JP12322379A JP12322379A JPS5648121A JP S5648121 A JPS5648121 A JP S5648121A JP 12322379 A JP12322379 A JP 12322379A JP 12322379 A JP12322379 A JP 12322379A JP S5648121 A JPS5648121 A JP S5648121A
Authority
JP
Japan
Prior art keywords
winding
master
short
axial length
instrumentation
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
JP12322379A
Other languages
Japanese (ja)
Other versions
JPS5843892B2 (en
Inventor
Kenji Wada
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 JP54123223A priority Critical patent/JPS5843892B2/en
Publication of JPS5648121A publication Critical patent/JPS5648121A/en
Publication of JPS5843892B2 publication Critical patent/JPS5843892B2/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
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

PURPOSE:To achieve higher reliability in the protection of the system by coinciding the tertiary winding wound almost equal to axial length of the master winding with the axial center of the master winding. CONSTITUTION:One leg of an iron core 5 is wound with a primary winding 1, a master winding 2, a slave winding 3, and a tertiary winding 14 in such a manner that the winding 14 almost equals the master winding 2 in the axial length while coinciding each other in the center of the axial length. Now, when the winding 2 causes a short-circuit between terminals u1-theta1, the main magnetic flux passes through the route 6 and bence, has little interlinkage with the winding 14 whereby the voltage induced in the winding 4 becomes zero. On the other hand, when the winding 3 causes a short-circuit between terminals u2-theta2, the main magnetic flux passes through the winding 14 and hence, the rated voltage is induced in the winding 14. Accordingly, when three such master-slave type transformers with a tartiary winding for instrumentation are combined, only controlling the action of the relay suffices in case of short-circuiting in the winding 2 thereby upgrading the reliability in the protection of the system.
JP54123223A 1979-09-27 1979-09-27 Parent-child instrument transformer with tertiary winding Expired JPS5843892B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54123223A JPS5843892B2 (en) 1979-09-27 1979-09-27 Parent-child instrument transformer with tertiary winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54123223A JPS5843892B2 (en) 1979-09-27 1979-09-27 Parent-child instrument transformer with tertiary winding

Publications (2)

Publication Number Publication Date
JPS5648121A true JPS5648121A (en) 1981-05-01
JPS5843892B2 JPS5843892B2 (en) 1983-09-29

Family

ID=14855241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54123223A Expired JPS5843892B2 (en) 1979-09-27 1979-09-27 Parent-child instrument transformer with tertiary winding

Country Status (1)

Country Link
JP (1) JPS5843892B2 (en)

Also Published As

Publication number Publication date
JPS5843892B2 (en) 1983-09-29

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