GB696511A - Improvements in and relating to alternating current electric measuring circuit arrangements - Google Patents

Improvements in and relating to alternating current electric measuring circuit arrangements

Info

Publication number
GB696511A
GB696511A GB554451A GB554451A GB696511A GB 696511 A GB696511 A GB 696511A GB 554451 A GB554451 A GB 554451A GB 554451 A GB554451 A GB 554451A GB 696511 A GB696511 A GB 696511A
Authority
GB
United Kingdom
Prior art keywords
transductor
voltage
meter
phase
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
GB554451A
Inventor
Philip Baxter
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB554451A priority Critical patent/GB696511A/en
Publication of GB696511A publication Critical patent/GB696511A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/36—Induction meters, e.g. Ferraris meters
    • G01R11/40—Induction meters, e.g. Ferraris meters for polyphase operation
    • G01R11/42—Circuitry therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

696,511. Volt - ampere measurement. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 21, 1952 [March 7, 1951], No. 5544/51. Class 37. The output of a transductor varies in accordance with voltage and current in a main A.C. circuit to operate a volt-ampere measurement or control device. In the 3-phase K.V.A. summator circuit shown the input winding 8 on the transductor T is energized with D.C. through a 3-phase rectifier R in accordance with the summated currents in the main circuitphase conductors 2, 3, 4. The transductor output windings 6, 7 are in series with the operating coil or element 1 of a meter M across the phase lines so that meter M is simultaneously phase voltage and current responsive and registers total K.V.A. A connecting line 9 between the star point of the secondary windings in the summating current transformers AT2-4 and the mid-point in the transductor input winding 8 ensures accuracy in summation with unbalanced loads. A reverse arrangement involves making the control winding responsive to voltage and the output windings responsive to this voltage and to a voltage variable with the main circuit current. The transductor may be provided with three separate control windings connected through separate rectifiers. A further embodiment utilizes n-transductors and an n-element meter for an n-phase system. The meter M may be of the thermal type and comprise a maximum demand indicator.
GB554451A 1951-03-07 1951-03-07 Improvements in and relating to alternating current electric measuring circuit arrangements Expired GB696511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB554451A GB696511A (en) 1951-03-07 1951-03-07 Improvements in and relating to alternating current electric measuring circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB554451A GB696511A (en) 1951-03-07 1951-03-07 Improvements in and relating to alternating current electric measuring circuit arrangements

Publications (1)

Publication Number Publication Date
GB696511A true GB696511A (en) 1953-09-02

Family

ID=9798154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB554451A Expired GB696511A (en) 1951-03-07 1951-03-07 Improvements in and relating to alternating current electric measuring circuit arrangements

Country Status (1)

Country Link
GB (1) GB696511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732490A (en) * 1971-06-07 1973-05-08 Hewlett Packard Co Impedance probe for swept network analyzer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732490A (en) * 1971-06-07 1973-05-08 Hewlett Packard Co Impedance probe for swept network analyzer system

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