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GB1246920A - On-load tap-changing arrangement for use with tapped transformers and chokes - Google Patents

On-load tap-changing arrangement for use with tapped transformers and chokes

Info

Publication number
GB1246920A
GB1246920A GB5143369A GB5143369A GB1246920A GB 1246920 A GB1246920 A GB 1246920A GB 5143369 A GB5143369 A GB 5143369A GB 5143369 A GB5143369 A GB 5143369A GB 1246920 A GB1246920 A GB 1246920A
Authority
GB
United Kingdom
Prior art keywords
tap
rectifier
capacitor
oct
enable
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
GB5143369A
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of GB1246920A publication Critical patent/GB1246920A/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)
  • Rectifiers (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

1,246,920. Transformers. SIEMENS A.G. 20 Oct., 1969 [18 Oct., 1968], No. 51433/69. Heading H1T. A tap changing arrangement has rectifier bridges 4, 5 connected, at the instant of tap position changeover, to two taps by means of selector switch arms 2, 3. Controlled rectifiers 60, 70 in the respective D.C. bridge arms have their negative poles connected by a capacitor 110. At changeover of tap positions, the unconnected selector arm is engaged with the next tap, the capacitor 110 then charging up to the tap differential voltage. A firing pulse then turns on the other controlled rectifier, causing the capacitor to discharge, thus ensuring rapid turn-off of the un-pulsed rectifier. Inductors 80, 90 enable the conductive rectifier to remain so during current zero conditions without the need of continuous firing pulses. Control of the alternating firing pulses would enable a gradual transition from one tap position to the other.
GB5143369A 1968-10-18 1969-10-20 On-load tap-changing arrangement for use with tapped transformers and chokes Expired GB1246920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681803741 DE1803741B2 (en) 1968-10-18 1968-10-18 ARRANGEMENT FOR SWITCHING THE LOAD FOR STEPPED TRANSFORMERS OR REACTORS

Publications (1)

Publication Number Publication Date
GB1246920A true GB1246920A (en) 1971-09-22

Family

ID=5710810

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5142869A Expired GB1236505A (en) 1968-10-18 1969-10-20 On-load tap-changing arrangement for star-point connection to tapped transformers or chokes
GB5143369A Expired GB1246920A (en) 1968-10-18 1969-10-20 On-load tap-changing arrangement for use with tapped transformers and chokes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5142869A Expired GB1236505A (en) 1968-10-18 1969-10-20 On-load tap-changing arrangement for star-point connection to tapped transformers or chokes

Country Status (8)

Country Link
JP (3) JPS4932083B1 (en)
BE (2) BE740008A (en)
CH (2) CH497082A (en)
DE (1) DE1803741B2 (en)
FR (2) FR2020985A1 (en)
GB (2) GB1236505A (en)
NL (2) NL6915144A (en)
SE (2) SE361376B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424766A (en) * 2005-03-31 2006-10-04 Areva T & D Sa Resonant circuit arrangement used to commutate switches of an on-load tap changer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5094456A (en) * 1973-12-24 1975-07-28
FR2344185A1 (en) * 1976-03-09 1977-10-07 Le P Experimen DEVICE FOR THE CONTACTLESS SWITCHING OF THE TAPS OF A TRANSFORMER ON LOAD
SE9903392L (en) * 1999-09-20 2001-03-21 Abb Ab Electric coupling device, method for controlling the same and use of the coupling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424766A (en) * 2005-03-31 2006-10-04 Areva T & D Sa Resonant circuit arrangement used to commutate switches of an on-load tap changer
GB2424766B (en) * 2005-03-31 2007-06-27 Areva T & D Sa An on-load tap changer

Also Published As

Publication number Publication date
NL6915287A (en) 1970-04-21
GB1236505A (en) 1971-06-23
SE349691B (en) 1972-10-02
BE740008A (en) 1970-03-16
FR2021001A1 (en) 1970-07-17
CH497082A (en) 1970-09-30
DE1803741B2 (en) 1972-06-22
BE740370A (en) 1970-04-01
DE1803741A1 (en) 1970-07-30
JPS4933494B1 (en) 1974-09-07
SE361376B (en) 1973-10-29
JPS4933493B1 (en) 1974-09-07
NL6915144A (en) 1970-04-21
FR2020985A1 (en) 1970-07-17
CH506172A (en) 1971-04-15
JPS4932083B1 (en) 1974-08-27
FR2021001B1 (en) 1973-03-16

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