JPS55130117A - On-load tap changer - Google Patents

On-load tap changer

Info

Publication number
JPS55130117A
JPS55130117A JP3781879A JP3781879A JPS55130117A JP S55130117 A JPS55130117 A JP S55130117A JP 3781879 A JP3781879 A JP 3781879A JP 3781879 A JP3781879 A JP 3781879A JP S55130117 A JPS55130117 A JP S55130117A
Authority
JP
Japan
Prior art keywords
contact
terminal
current
circuit
fuse
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
JP3781879A
Other languages
Japanese (ja)
Other versions
JPS5939895B2 (en
Inventor
Kazuhiko Uchimura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3781879A priority Critical patent/JPS5939895B2/en
Publication of JPS55130117A publication Critical patent/JPS55130117A/en
Publication of JPS5939895B2 publication Critical patent/JPS5939895B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To remove securely the accidental current of an on-load tap changer in the case of short-circuiting between taps without fear of breakdown of circuit and to suppress the transient recovery voltage caused by extinction of fuse arc by a method wherein a resistance element is inserted in parallel with a fuse. CONSTITUTION:At the change over operation of tap changer from an odd number side tap to an even number side tap, if each fuse is fused, the short-circuiting current between taps is removed, and the load current flows through the circuit consisting of tap selecting arm 2-input terminal 4- fixed contact 14-movable contact 15-current-limiting resistor R1-resistance contact C-output terminal 8, and flows through the circuit remained by failure of breaking, of vacuum breaker VS consisting of selecting arm 2-input terminal 4-resistance element 20-fixed contact 6-movable contact 7-switch VS-terminal 8. Then the vacuum breaker VS is made to close and a contact C is made to open. The load current is transferred to the circuit consisted of selecting arm 2-terminal 4- element 20-contact 6-contact 7-switch VS-terminal 8. At last by changing over a movable contact exclusive use for current feeding 11 to an even number side fixed contact exclusive use for current feeding 10, the circuit consisting of selecting arm 2-terminal 4-contact 10-contact 11-terminal 8 is formed and changing over is completed. Therefor irrelevant to the fused place of fuse, the change over operation is completed without an instantaneous break down of load current circuit.
JP3781879A 1979-03-29 1979-03-29 Tap switching device under load Expired JPS5939895B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3781879A JPS5939895B2 (en) 1979-03-29 1979-03-29 Tap switching device under load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3781879A JPS5939895B2 (en) 1979-03-29 1979-03-29 Tap switching device under load

Publications (2)

Publication Number Publication Date
JPS55130117A true JPS55130117A (en) 1980-10-08
JPS5939895B2 JPS5939895B2 (en) 1984-09-27

Family

ID=12508096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3781879A Expired JPS5939895B2 (en) 1979-03-29 1979-03-29 Tap switching device under load

Country Status (1)

Country Link
JP (1) JPS5939895B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2654248A1 (en) * 1989-10-27 1991-05-10 Reinhausen Maschf Scheubeck ARRANGEMENT AND METHOD FOR CHARGING ADJUSTMENT SWITCHING FOR SWITCHING SWITCHES TO SWITCHING SWITCHES.
JP2012069692A (en) * 2010-09-22 2012-04-05 Toshiba Corp On-load tap changer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2654248A1 (en) * 1989-10-27 1991-05-10 Reinhausen Maschf Scheubeck ARRANGEMENT AND METHOD FOR CHARGING ADJUSTMENT SWITCHING FOR SWITCHING SWITCHES TO SWITCHING SWITCHES.
JP2012069692A (en) * 2010-09-22 2012-04-05 Toshiba Corp On-load tap changer

Also Published As

Publication number Publication date
JPS5939895B2 (en) 1984-09-27

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