GB820642A - Arrangement for introducing direct current excitation in a group of current transformers feeding a common load - Google Patents

Arrangement for introducing direct current excitation in a group of current transformers feeding a common load

Info

Publication number
GB820642A
GB820642A GB26815/56A GB2681556A GB820642A GB 820642 A GB820642 A GB 820642A GB 26815/56 A GB26815/56 A GB 26815/56A GB 2681556 A GB2681556 A GB 2681556A GB 820642 A GB820642 A GB 820642A
Authority
GB
United Kingdom
Prior art keywords
group
arrangement
common load
feeding
direct current
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
GB26815/56A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB820642A publication Critical patent/GB820642A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/32—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using magnetic devices with controllable degree of saturation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

820,642. Protective arrangements. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 3, 1956 [Sept. 16, 1955], No. 26815/56. Class 38 (5). [Also in Group XXXV] Current transformers 3, 4, 13, 14 feeding an indicating relay 16 in dependence on the single - phase current taken by a load 2, are controlled by D.C. saturation from a potentiometer 10, and are bridgeconnected to prevent feeding alternating current back into the D.C. source. Transformers 3, 14 and 4, 13 may consist of separate secondary windings on single cores.
GB26815/56A 1955-09-16 1956-09-03 Arrangement for introducing direct current excitation in a group of current transformers feeding a common load Expired GB820642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE820642X 1955-09-16

Publications (1)

Publication Number Publication Date
GB820642A true GB820642A (en) 1959-09-23

Family

ID=20348551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26815/56A Expired GB820642A (en) 1955-09-16 1956-09-03 Arrangement for introducing direct current excitation in a group of current transformers feeding a common load

Country Status (1)

Country Link
GB (1) GB820642A (en)

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