GB787838A - Improvements in or relating to electrical power supply equipment - Google Patents

Improvements in or relating to electrical power supply equipment

Info

Publication number
GB787838A
GB787838A GB11492/57A GB1149257A GB787838A GB 787838 A GB787838 A GB 787838A GB 11492/57 A GB11492/57 A GB 11492/57A GB 1149257 A GB1149257 A GB 1149257A GB 787838 A GB787838 A GB 787838A
Authority
GB
United Kingdom
Prior art keywords
voltage
coils
zero
output voltage
movable coils
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
GB11492/57A
Inventor
Arthur Cecil Beck
Frederick Thomas Henry Norbury
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB787838A publication Critical patent/GB787838A/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
    • G05F1/24—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

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)
  • Toilet Supplies (AREA)
  • Relay Circuits (AREA)

Abstract

787,838. Supply systems for consumption apparatus. STANDARD TELEPHONES & CABLES, Ltd. May 10, 1955, No. 11492/57. Divided out of 787,837. Drawings to Specification. Classes 38 (2) and 38 (4). Electrical power supply equipment for a complex load such as a broadcast radio transmitter comprises an alternating current regulating device of the moving coil type which incorporates driving means for moving the movable coils from a first position to a second position with a slow continuous movement; release means being provided so that the movable coils may move rapidly from the second position to the first; a switch for starting the driving means; direct connections from the regulator to the circuits comprising the load wherein each circuit is provided with an overload relay effective to control the release means. Closure of the starting switch energizes a clutch and an electric motor then slowly drives the movable coils from the first position in which, when a substantially constant voltage is applied to the device, the output voltage thereof is zero to the second position in which the output voltage is a maximum. At this position means such as an astatic relay function to keep the output voltage constant. Should a fault occur or one of the overload relays operate the clutch becomes de-energized, thereby allowing the movable coils to move rapidly from the second position to the first (zero voltage) position, this movement taking place due to the gravitational forces, or the magnetic forces, acting on the coils. Operation of a stop mechanism results in a similar movement of the coils to the zero voltage position. In the embodiment shown, one of the circuits of the complex load has a voltage injected therein by means of an injection transformer so that the voltage applied thereto begins at a value above zero. The regulating device is described and claimed in Specification 787,837 from which Application the present Application has been divided.
GB11492/57A 1955-05-10 1955-05-10 Improvements in or relating to electrical power supply equipment Expired GB787838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB344773X 1955-05-10

Publications (1)

Publication Number Publication Date
GB787838A true GB787838A (en) 1957-12-18

Family

ID=10366128

Family Applications (2)

Application Number Title Priority Date Filing Date
GB13485/55A Expired GB787837A (en) 1955-05-10 1955-05-10 Improvements in or relating to alternating current regulating devices
GB11492/57A Expired GB787838A (en) 1955-05-10 1955-05-10 Improvements in or relating to electrical power supply equipment

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB13485/55A Expired GB787837A (en) 1955-05-10 1955-05-10 Improvements in or relating to alternating current regulating devices

Country Status (2)

Country Link
CH (1) CH344773A (en)
GB (2) GB787837A (en)

Also Published As

Publication number Publication date
GB787837A (en) 1957-12-18
CH344773A (en) 1960-02-29

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