GB508230A - Means for regulating two or more electrical quantities - Google Patents

Means for regulating two or more electrical quantities

Info

Publication number
GB508230A
GB508230A GB301038A GB301038A GB508230A GB 508230 A GB508230 A GB 508230A GB 301038 A GB301038 A GB 301038A GB 301038 A GB301038 A GB 301038A GB 508230 A GB508230 A GB 508230A
Authority
GB
United Kingdom
Prior art keywords
current
rectifier
winding
circuit
fed
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
GB301038A
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
Priority to GB301038A priority Critical patent/GB508230A/en
Publication of GB508230A publication Critical patent/GB508230A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/32—Automatic controllers electric with inputs from more than one sensing element; with outputs to more than one correcting element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

508,230. Converting ; automatic control systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, and LAMM, U. Jan. 13, 1938, No. 3010. [Classes 38 (ii) and 38 (iv)] Two or more variables, such as the current and voltage in a converting arrangement, are regulated by means of a circuit comprising two branches, one branch has supplied to it through a rectifier bridge 3 a constant direct current, the other branch has supplied to it through rectifiers 7 and 9 direct currents proportional to the variables to be controlled. A regulator winding 16 is connected in parallel to the two branches and the circuit is such that this winding is traversed by the current difference between the currents in the two branches. The current in the branch containing the rectifiers 7, 9 is determined by the larger of the currents representing the variables. A rectifier element is provided in series with the winding 16 to prevent reverse currents flowing. In the system shown, for the regulation of a converter, the rectifier 7 is fed from a current transformer in the converter circuit and the rectifier 9 is fed from a supply of A.C. which is controlled by means of a saturable inductance 10 in dependence on the voltage in the rectifier circuit. The inductance 10 may also be provided with a winding 12 fed from a source of constant current and a winding 13 fed with current proportional to the load current to give compounding. Where the current representing the variable is already a direct current, it may be introduced into the control circuit as shown in Fig. 2, across a series connected rectifier 19. Specification 459,443 is referred to.
GB301038A 1938-01-13 1938-01-13 Means for regulating two or more electrical quantities Expired GB508230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB301038A GB508230A (en) 1938-01-13 1938-01-13 Means for regulating two or more electrical quantities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB301038A GB508230A (en) 1938-01-13 1938-01-13 Means for regulating two or more electrical quantities

Publications (1)

Publication Number Publication Date
GB508230A true GB508230A (en) 1939-06-28

Family

ID=9750242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB301038A Expired GB508230A (en) 1938-01-13 1938-01-13 Means for regulating two or more electrical quantities

Country Status (1)

Country Link
GB (1) GB508230A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945337C (en) * 1951-04-03 1956-07-05 Fritz Kuemmel Dr Ing Arrangement to increase the bridge voltage in AC bridges with the aid of premagnetized chokes
DE946371C (en) * 1939-10-14 1956-08-02 Siemens Ag Device for the automatic control of rectifiers by means of premagnetized chokes
DE1161630B (en) * 1962-09-19 1964-01-23 Bbc Brown Boveri & Cie Monitoring device as a function of several currents
DE1200419B (en) * 1960-04-02 1965-09-09 Continental Elektro Ind Ag Device for the automatic selection of one of several electric currents

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946371C (en) * 1939-10-14 1956-08-02 Siemens Ag Device for the automatic control of rectifiers by means of premagnetized chokes
DE945337C (en) * 1951-04-03 1956-07-05 Fritz Kuemmel Dr Ing Arrangement to increase the bridge voltage in AC bridges with the aid of premagnetized chokes
DE1200419B (en) * 1960-04-02 1965-09-09 Continental Elektro Ind Ag Device for the automatic selection of one of several electric currents
DE1161630B (en) * 1962-09-19 1964-01-23 Bbc Brown Boveri & Cie Monitoring device as a function of several currents

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