GB629542A - Improvements in or relating to automatic voltage regulating equipment - Google Patents

Improvements in or relating to automatic voltage regulating equipment

Info

Publication number
GB629542A
GB629542A GB3204246A GB3204246A GB629542A GB 629542 A GB629542 A GB 629542A GB 3204246 A GB3204246 A GB 3204246A GB 3204246 A GB3204246 A GB 3204246A GB 629542 A GB629542 A GB 629542A
Authority
GB
United Kingdom
Prior art keywords
motor
supply
auxiliary relays
voltage
relays
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
GB3204246A
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
Priority to GB3204246A priority Critical patent/GB629542A/en
Priority to ES0182561A priority patent/ES182561A1/en
Publication of GB629542A publication Critical patent/GB629542A/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
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/04—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric with sensing of the position of the pointer of a measuring instrument

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Multiple Motors (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Control Of Ac Motors In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

629,542. Automatic control systems for supply systems. STANDARD TELEPHONES & CABLES, Ltd., and KELLY, R. Oct. 29, 1946. Nos. 32042 and 36583. [Class 38 (iv)] In automatic voltage-regulating equipment for a power supply system comprising an electric regulating motor controlled by auxiliary relays operated from the " high voltage " and " low voltage " limit contacts of a marginal relay, if the auxiliary relays are operated simultaneously additional means cause the motor to either operate in a predetermined direction or stop. The invention is described in one embodiment with reference to an A.C. supply system in which a motor, which positions the tapping of the supply auto-transformer is controlled by two auxiliary relays, selected by a single marginal relay connected across the output; provision is made to prevent damage through the simultaneous operation of the auxiliary relays or the interruption of the supply to the control system. As shown, the tapping TC is positioned by motor MD1 to maintain the A.C. voltage at L2, N2 between limits. The motor MD1 and auxiliary relays HV, LV are supplied with A.C. through the fuses F3, F4 and the marginal relay with D.C. from the rectifiers W1. With a change in the voltage at L2, N2 beyond the limit values, the marginal relay JV selects one or other of relays HV, LV to cause motor MD1 to correct the position of TC. If either or both of fuses F3, F4 blow, the control system is rendered inoperative and no regulation occurs. If both auxiliary relays HV, LV are otherwise simultaneously operated, the contact hv3 is opened and the motor MD1 lowers the output voltage. A -similar contact may be included in series with hv1 so that upon simultaneous operation of HV and LV, the motor MD1 is disconnected. In a second embodiment a D.C. shunt motor which is connected directly across the supply to be stabilized, controls the regulation, and its direction of rotation is determined by auxiliary relays in the armature circuit which are operated by a marginal relay across the supply. Simultaneous operation of the auxiliary relays or failure of the fuses between the supply and the control system arrests control. Specifications 514,167, 514,294 and 515,948 are referred to.
GB3204246A 1946-10-29 1946-10-29 Improvements in or relating to automatic voltage regulating equipment Expired GB629542A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3204246A GB629542A (en) 1946-10-29 1946-10-29 Improvements in or relating to automatic voltage regulating equipment
ES0182561A ES182561A1 (en) 1946-10-29 1948-02-21 IMPROVEMENTS IN AUTOMATIC VOLTAGE REGULATORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3204246A GB629542A (en) 1946-10-29 1946-10-29 Improvements in or relating to automatic voltage regulating equipment

Publications (1)

Publication Number Publication Date
GB629542A true GB629542A (en) 1949-09-22

Family

ID=10332228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3204246A Expired GB629542A (en) 1946-10-29 1946-10-29 Improvements in or relating to automatic voltage regulating equipment

Country Status (2)

Country Link
ES (1) ES182561A1 (en)
GB (1) GB629542A (en)

Also Published As

Publication number Publication date
ES182561A1 (en) 1948-04-16

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