EP0114648A3 - Onload tap-changing transformer - Google Patents

Onload tap-changing transformer Download PDF

Info

Publication number
EP0114648A3
EP0114648A3 EP84100454A EP84100454A EP0114648A3 EP 0114648 A3 EP0114648 A3 EP 0114648A3 EP 84100454 A EP84100454 A EP 84100454A EP 84100454 A EP84100454 A EP 84100454A EP 0114648 A3 EP0114648 A3 EP 0114648A3
Authority
EP
European Patent Office
Prior art keywords
changing transformer
onload tap
onload
tap
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
EP84100454A
Other versions
EP0114648A2 (en
EP0114648B1 (en
Inventor
Minoru Hoshi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP0114648A2 publication Critical patent/EP0114648A2/en
Publication of EP0114648A3 publication Critical patent/EP0114648A3/en
Application granted granted Critical
Publication of EP0114648B1 publication Critical patent/EP0114648B1/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP19840100454 1983-01-22 1984-01-17 Onload tap-changing transformer Expired EP0114648B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP808183A JPS59134808A (en) 1983-01-22 1983-01-22 On-load tap-changing transformer
JP8081/83 1983-01-22

Publications (3)

Publication Number Publication Date
EP0114648A2 EP0114648A2 (en) 1984-08-01
EP0114648A3 true EP0114648A3 (en) 1984-08-29
EP0114648B1 EP0114648B1 (en) 1987-04-22

Family

ID=11683380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840100454 Expired EP0114648B1 (en) 1983-01-22 1984-01-17 Onload tap-changing transformer

Country Status (4)

Country Link
EP (1) EP0114648B1 (en)
JP (1) JPS59134808A (en)
DE (1) DE3463311D1 (en)
IN (1) IN159670B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3564509D1 (en) * 1984-01-24 1988-09-22 Mitsubishi Electric Corp On-load tap changer
AU2005317850B2 (en) * 2004-12-22 2011-05-12 Perkinelmer Singapore Pte Ltd. A method and apparatus for analysing a dynamic sample
DE102012203103B4 (en) 2012-02-29 2018-01-11 Siemens Aktiengesellschaft Voltage conversion device and rail vehicle with a voltage conversion device
CZ307097B6 (en) * 2014-11-06 2018-01-10 Vysoká Škola Báňská - Technická Univerzita Ostrava A method of switching load on a transformer and transformer connection for performing this method
CN109473262B (en) * 2018-12-03 2023-11-21 三变科技股份有限公司 Double high voltage transformer and voltage regulating method thereof
CN113161132A (en) * 2021-03-11 2021-07-23 云南电网有限责任公司电力科学研究院 Combined winding transformer, adjusting method and data relation analysis method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1011375A (en) * 1962-11-28 1965-11-24 Smit & Willem & Co Nv Improvements in and relating to regulating transformers
US3271659A (en) * 1958-03-27 1966-09-06 Acec Tap changing autotransformer
US3621428A (en) * 1970-09-24 1971-11-16 Westinghouse Electric Corp Electrical windings and method of constructing same
DE2841592A1 (en) * 1978-09-25 1980-03-27 Transformatoren Union Ag Stepped winding for transformers and inductors - is formed in pancake coil sections each with two conductors for high current loading
DE2944812A1 (en) * 1978-11-06 1980-05-14 Hitachi Ltd THREE-WINDING TRANSFORMER

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115807A (en) * 1981-01-09 1982-07-19 Hitachi Ltd Wiring circuit for transformer
JPS57147200A (en) * 1981-03-05 1982-09-10 Usac Electronics Ind Co Ltd Transferring system for contents of storage device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271659A (en) * 1958-03-27 1966-09-06 Acec Tap changing autotransformer
GB1011375A (en) * 1962-11-28 1965-11-24 Smit & Willem & Co Nv Improvements in and relating to regulating transformers
US3621428A (en) * 1970-09-24 1971-11-16 Westinghouse Electric Corp Electrical windings and method of constructing same
DE2841592A1 (en) * 1978-09-25 1980-03-27 Transformatoren Union Ag Stepped winding for transformers and inductors - is formed in pancake coil sections each with two conductors for high current loading
DE2944812A1 (en) * 1978-11-06 1980-05-14 Hitachi Ltd THREE-WINDING TRANSFORMER

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 211(E-137)(1089), 23rd October 1982 & JP 57 115 807 A (HITACHI SEISAKUSHO K.K.) 19-07-1982 *
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 247(E-146)(1125), 7th December 1982 & JP 57 147200 A (TOKYO SHIBAURA DENKI K.K.) 11-09-1982 *

Also Published As

Publication number Publication date
JPS59134808A (en) 1984-08-02
JPH023285B2 (en) 1990-01-23
DE3463311D1 (en) 1987-05-27
IN159670B (en) 1987-05-30
EP0114648A2 (en) 1984-08-01
EP0114648B1 (en) 1987-04-22

Similar Documents

Publication Publication Date Title
IL71329A (en) Tap
GB8406403D0 (en) Transformers
GB8404393D0 (en) Transformers
GB8304244D0 (en) Tap
GB2144829B (en) Taps
GB8407872D0 (en) Transformer
GB8316672D0 (en) Tap
GB2141288B (en) Transformer
DE3463311D1 (en) Onload tap-changing transformer
GB8408201D0 (en) Intermediate insulating course
DE3460235D1 (en) Sheet-wound transformer
DE3469096D1 (en) Ebullition-cooled transformer
GB2104298B (en) On-load tap-changing transformer
GB2125634B (en) Transformer
GB2146492B (en) Controllable transformer
DE3371327D1 (en) Tap
GB2134222B (en) Tap
GB2125227B (en) Transformer insulation
GB8321065D0 (en) Transformer bobbin
GB8333086D0 (en) Transformer
GB2135127B (en) Transformer tap-changer switch
GB2120018B (en) Transformer
GB8306684D0 (en) Transformers
YU105883A (en) Transformer
GB8332859D0 (en) Transformer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE SE

AK Designated contracting states

Designated state(s): DE SE

17P Request for examination filed

Effective date: 19840928

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE SE

REF Corresponds to:

Ref document number: 3463311

Country of ref document: DE

Date of ref document: 19870527

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19911106

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920327

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19931001

EUG Se: european patent has lapsed

Ref document number: 84100454.2

Effective date: 19930810