GB434884A - Improvements in automatic voltage regulators - Google Patents

Improvements in automatic voltage regulators

Info

Publication number
GB434884A
GB434884A GB806934A GB806934A GB434884A GB 434884 A GB434884 A GB 434884A GB 806934 A GB806934 A GB 806934A GB 806934 A GB806934 A GB 806934A GB 434884 A GB434884 A GB 434884A
Authority
GB
United Kingdom
Prior art keywords
current
primary
running position
weight
running
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
GB806934A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB806934A priority Critical patent/GB434884A/en
Publication of GB434884A publication Critical patent/GB434884A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K26/00—Machines adapted to function as torque motors, i.e. to exert a torque when stalled
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/24—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices
    • G05F1/247—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices with motor in control circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

434,884. Antomatic regulation. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, DAVIS, G. E., and GIBSON, J. W., c/o General Electric Co., Witton, Birmingham. March 14, 1934, No. 8069. [Class 38 (iv)] A voltage regulator for A.C. current comprises a transformer with a secondary winding 2 in series with the load 1 and a primary winding 3 supplied with current controlled by tap changing means operated by the load current or by a current derived therefrom. The regulating current in the primary 3 depends upon the position of the drum type switch which is rotated by a torque motor 4 having an unsaturated magnetic circuit against weights 20, 21. The pull of the weight 20 is exerted through a cam of varying radius in such a way that the torque decreases as the weight is raised, while the cord through which the weight 21 acts is free in the first running or low voltage position 1 and taut in the second or intermediate voltage running position 5, and also in the third or high voltage running position 8. In the first running position 1, the primary 3 is shortcircuited, in the second running position 5 it is connected across the mains, and in the third running position 8 only the left-hand section is operative. In the first, second and third transitional positions 2, 3, 4, and the fourth and fifth transitional positions 6, 7, the connections, primary 3 and the unsaturated choke 16 are appropriately varied. The transformer tappings may be controlled by contactors operated by solenoids operating at different current values.
GB806934A 1934-03-14 1934-03-14 Improvements in automatic voltage regulators Expired GB434884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB806934A GB434884A (en) 1934-03-14 1934-03-14 Improvements in automatic voltage regulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB806934A GB434884A (en) 1934-03-14 1934-03-14 Improvements in automatic voltage regulators

Publications (1)

Publication Number Publication Date
GB434884A true GB434884A (en) 1935-09-11

Family

ID=9845176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB806934A Expired GB434884A (en) 1934-03-14 1934-03-14 Improvements in automatic voltage regulators

Country Status (1)

Country Link
GB (1) GB434884A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088693A1 (en) * 2003-04-03 2004-10-14 Maschinenfabrik Reinhausen Gmbh Multipoint switch
DE102010040969A1 (en) * 2010-09-17 2012-03-22 Siemens Aktiengesellschaft Transformer device i.e. low voltage transformer, for setting of low voltage in power supply region of supply network, has adding device designed for adding supplementary voltage on lines of secondary or primary line system
DE102013211323A1 (en) * 2013-06-17 2014-12-18 Leica Biosystems Nussloch Gmbh Sample cooler for histological samples

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088693A1 (en) * 2003-04-03 2004-10-14 Maschinenfabrik Reinhausen Gmbh Multipoint switch
DE102010040969A1 (en) * 2010-09-17 2012-03-22 Siemens Aktiengesellschaft Transformer device i.e. low voltage transformer, for setting of low voltage in power supply region of supply network, has adding device designed for adding supplementary voltage on lines of secondary or primary line system
DE102013211323A1 (en) * 2013-06-17 2014-12-18 Leica Biosystems Nussloch Gmbh Sample cooler for histological samples
US9918405B2 (en) 2013-06-17 2018-03-13 Leica Biosystems Nussloch Gmbh Sample cooling device for histological samples

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