GB426271A - Improvements in and relating to voltage regulating systems - Google Patents

Improvements in and relating to voltage regulating systems

Info

Publication number
GB426271A
GB426271A GB2718233A GB2718233A GB426271A GB 426271 A GB426271 A GB 426271A GB 2718233 A GB2718233 A GB 2718233A GB 2718233 A GB2718233 A GB 2718233A GB 426271 A GB426271 A GB 426271A
Authority
GB
United Kingdom
Prior art keywords
voltage
cell
generator
causes
relay
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
GB2718233A
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.)
ERNEST WILLIAM FORSTER
WILLIAM REGINALD HOLLAND
British Thomson Houston Co Ltd
Original Assignee
ERNEST WILLIAM FORSTER
WILLIAM REGINALD HOLLAND
British Thomson Houston 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 ERNEST WILLIAM FORSTER, WILLIAM REGINALD HOLLAND, British Thomson Houston Co Ltd filed Critical ERNEST WILLIAM FORSTER
Priority to GB2718233A priority Critical patent/GB426271A/en
Publication of GB426271A publication Critical patent/GB426271A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices

Abstract

426,271. Automatic regulation; thermionic valve circuits. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, HOLLAND, W. R., Redlynch, Bilton, and FORSTER, E. W., 101, Grosvenor Road, both in Rugby. Oct. 3, 1933, No. 27182. [Class 38 (iv)] [See also Group XL] In a system for automatically regulating the voltage of a generator, any departure from the predetermined voltage causes a mirror carried by a galvanometer or similar instrument to reflect a beam of light on to a photo-electric cell, 9 or 14, to cause a corresponding variation in the phase of the grid voltage of one or more mercury vapour valves 34, 36 through which the field 37 of the generator or its exciter is supplied. When the generator voltage exceeds the normal value, light shines on cell 9 and the grid potential of valve 10 rises above the negative value to which it is normally set by adjuster 5, causing valve 10 to conduct and energize relay 12 which then opens to insert resistance 21 in the bridge circuit 21, 22, 23, 24 thereby altering the phase of the voltage across the grid transformer 28, 29, 25 fed from the auxiliary A.C. circuit 38. This alteration in phase causes reduction of the current in field 37 with consequent reduction of the generator voltage. Reduction of the generator voltage below normal causes illumination of cell 14 and energization of relay 18 which short circuits 22 and causes such a phase shift of the grid voltage of valves 34, 36 as to increase the current through the field 37. A single photo-electric cell or a " split cathode " cell may be used. The Provisional Specification also describes an arrangement in which the galvanometer and photo-electric cell are replaced by a sensitive relay provided with contacts operating on a bridge circuit in which the A.C. potential may be balanced against a constant potential difference the relay being energized when the bridge is unbalanced.
GB2718233A 1933-10-03 1933-10-03 Improvements in and relating to voltage regulating systems Expired GB426271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2718233A GB426271A (en) 1933-10-03 1933-10-03 Improvements in and relating to voltage regulating systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2718233A GB426271A (en) 1933-10-03 1933-10-03 Improvements in and relating to voltage regulating systems

Publications (1)

Publication Number Publication Date
GB426271A true GB426271A (en) 1935-04-01

Family

ID=10255520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2718233A Expired GB426271A (en) 1933-10-03 1933-10-03 Improvements in and relating to voltage regulating systems

Country Status (1)

Country Link
GB (1) GB426271A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224562A (en) * 1978-02-27 1980-09-23 Sure Power Products, Inc. Voltage regulator with electrically isolated output stage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224562A (en) * 1978-02-27 1980-09-23 Sure Power Products, Inc. Voltage regulator with electrically isolated output stage

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