GB2267400B - A scheme to prevent uncontrolled operations of tap changing equipment used with large power transformers - Google Patents

A scheme to prevent uncontrolled operations of tap changing equipment used with large power transformers

Info

Publication number
GB2267400B
GB2267400B GB9211235A GB9211235A GB2267400B GB 2267400 B GB2267400 B GB 2267400B GB 9211235 A GB9211235 A GB 9211235A GB 9211235 A GB9211235 A GB 9211235A GB 2267400 B GB2267400 B GB 2267400B
Authority
GB
United Kingdom
Prior art keywords
scheme
equipment used
large power
power transformers
prevent uncontrolled
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 - Fee Related
Application number
GB9211235A
Other versions
GB2267400A (en
GB9211235D0 (en
Inventor
Nicholas John Hiscock
Christopher Robin Goodfellow
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9211235A priority Critical patent/GB2267400B/en
Publication of GB9211235D0 publication Critical patent/GB9211235D0/en
Publication of GB2267400A publication Critical patent/GB2267400A/en
Application granted granted Critical
Publication of GB2267400B publication Critical patent/GB2267400B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/055—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for tapped transformers or tap-changing means thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
GB9211235A 1992-05-27 1992-05-27 A scheme to prevent uncontrolled operations of tap changing equipment used with large power transformers Expired - Fee Related GB2267400B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9211235A GB2267400B (en) 1992-05-27 1992-05-27 A scheme to prevent uncontrolled operations of tap changing equipment used with large power transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9211235A GB2267400B (en) 1992-05-27 1992-05-27 A scheme to prevent uncontrolled operations of tap changing equipment used with large power transformers

Publications (3)

Publication Number Publication Date
GB9211235D0 GB9211235D0 (en) 1992-07-08
GB2267400A GB2267400A (en) 1993-12-01
GB2267400B true GB2267400B (en) 1995-11-01

Family

ID=10716106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9211235A Expired - Fee Related GB2267400B (en) 1992-05-27 1992-05-27 A scheme to prevent uncontrolled operations of tap changing equipment used with large power transformers

Country Status (1)

Country Link
GB (1) GB2267400B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7444266B2 (en) * 2006-03-21 2008-10-28 Abb Technology Ltd. Control system for a transformer or reactor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB268766A (en) * 1926-03-31 1927-09-08 Vickers Electrical Co Ltd Improvements in or relating to protective systems for electric transformers
GB1574094A (en) * 1976-04-27 1980-09-03 Westinghouse Electric Corp Load tap changer system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB268766A (en) * 1926-03-31 1927-09-08 Vickers Electrical Co Ltd Improvements in or relating to protective systems for electric transformers
GB1574094A (en) * 1976-04-27 1980-09-03 Westinghouse Electric Corp Load tap changer system

Also Published As

Publication number Publication date
GB2267400A (en) 1993-12-01
GB9211235D0 (en) 1992-07-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100527