GB301144A - Improvements in and relating to methods of and means for protecting electric distribution circuits - Google Patents

Improvements in and relating to methods of and means for protecting electric distribution circuits

Info

Publication number
GB301144A
GB301144A GB2485727A GB2485727A GB301144A GB 301144 A GB301144 A GB 301144A GB 2485727 A GB2485727 A GB 2485727A GB 2485727 A GB2485727 A GB 2485727A GB 301144 A GB301144 A GB 301144A
Authority
GB
United Kingdom
Prior art keywords
relating
methods
reactor
lines
electric distribution
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
GB2485727A
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.)
HENRY STANLEY HOLBROOK
British Thomson Houston Co Ltd
Original Assignee
HENRY STANLEY HOLBROOK
British Thomson Houston 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 HENRY STANLEY HOLBROOK, British Thomson Houston Co Ltd filed Critical HENRY STANLEY HOLBROOK
Priority to GB2485727A priority Critical patent/GB301144A/en
Priority to FR660653D priority patent/FR660653A/en
Publication of GB301144A publication Critical patent/GB301144A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

301,144. British Thomson-Houston Co., Ltd., and Holbrook, H. S. Sept. 21, 1927. Protective arrangements. - In alternating current systems baving a neutral point earthed through a resistance, earth-fault currents are limited by a reactor in series with the line and offering a negligable impedance to a balanced load but a high impedance to a fault current in one of the lines. Such reactance may comprise equal windings in each phase so placed that their combined effective exciting current is the resultant of the currents in the lines. Fig. 4 'shows three equal windings w upon a common core which may have an air gap g. On occasion the reactor may have an air core.
GB2485727A 1927-09-21 1927-09-21 Improvements in and relating to methods of and means for protecting electric distribution circuits Expired GB301144A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2485727A GB301144A (en) 1927-09-21 1927-09-21 Improvements in and relating to methods of and means for protecting electric distribution circuits
FR660653D FR660653A (en) 1927-09-21 1928-09-19 Improvements to protection systems for electrical distribution circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2485727A GB301144A (en) 1927-09-21 1927-09-21 Improvements in and relating to methods of and means for protecting electric distribution circuits

Publications (1)

Publication Number Publication Date
GB301144A true GB301144A (en) 1928-11-29

Family

ID=10218330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2485727A Expired GB301144A (en) 1927-09-21 1927-09-21 Improvements in and relating to methods of and means for protecting electric distribution circuits

Country Status (2)

Country Link
FR (1) FR660653A (en)
GB (1) GB301144A (en)

Also Published As

Publication number Publication date
FR660653A (en) 1929-07-16

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