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GB980682A - Improvements in or relating to a.c. power regulation systems - Google Patents

Improvements in or relating to a.c. power regulation systems

Info

Publication number
GB980682A
GB980682A GB36871/60A GB3687160A GB980682A GB 980682 A GB980682 A GB 980682A GB 36871/60 A GB36871/60 A GB 36871/60A GB 3687160 A GB3687160 A GB 3687160A GB 980682 A GB980682 A GB 980682A
Authority
GB
United Kingdom
Prior art keywords
rectifier
potential
rectifiers
zener diode
controlled
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
GB36871/60A
Inventor
Brian Raymond Pelly
Kenneth Gordon King
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB36871/60A priority Critical patent/GB980682A/en
Priority to FR877015A priority patent/FR1304485A/en
Publication of GB980682A publication Critical patent/GB980682A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05F1/40—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current  wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
    • 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
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device

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)
  • Emergency Protection Circuit Devices (AREA)

Abstract

980,682. Automatic regulation. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Oct. 18,1961 [Oct. 27, 1960], No. 36871/60. Headings G3R and G3X. [Also in Division H3] A power regulating system for supplying a potential, and for limiting voltage surges outside a permitted range comprises a pair of rectifiers connected in inverse parallel, at least one of which, T, is controllable; a potential divider R, # connected in parallel with the two rectifiers T, D1; and a Zener diode D2 connected between the tapping point of the potential divider and the gate of the controllable rectifier. An excessive positive voltage at A causes the Zener diode D2 to conduct and fire the controlled rectifier T. The rectifier D1 may be replaced by a second controlled rectifier, Fig. 1 (not shown) the trigger electrode of which is taken via a second Zener diode to another tapping point on the resistive potential divider between A and B. In a circuit disclosed in the Provisional Specification two controlled rectifiers are connected in inverse parallel, each being triggered by the potential developed across a rectifier connected in series with the anode/cathode path of the other controlled rectifier. Triggering may alternatively be effected via secondary windings of a transformer the primary of which is connected between the points A, B.
GB36871/60A 1960-10-27 1960-10-27 Improvements in or relating to a.c. power regulation systems Expired GB980682A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB36871/60A GB980682A (en) 1960-10-27 1960-10-27 Improvements in or relating to a.c. power regulation systems
FR877015A FR1304485A (en) 1960-10-27 1961-10-25 Regulation system for AC power supply

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB36871/60A GB980682A (en) 1960-10-27 1960-10-27 Improvements in or relating to a.c. power regulation systems
FR877015A FR1304485A (en) 1960-10-27 1961-10-25 Regulation system for AC power supply

Publications (1)

Publication Number Publication Date
GB980682A true GB980682A (en) 1965-01-20

Family

ID=60451278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36871/60A Expired GB980682A (en) 1960-10-27 1960-10-27 Improvements in or relating to a.c. power regulation systems

Country Status (2)

Country Link
FR (1) FR1304485A (en)
GB (1) GB980682A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573550A (en) * 1969-03-07 1971-04-06 M & T Chemicals Inc Automatically resetting transient protection device

Also Published As

Publication number Publication date
FR1304485A (en) 1962-09-21

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