GB1086147A - Improvements in or relating to electrical control arrangements - Google Patents

Improvements in or relating to electrical control arrangements

Info

Publication number
GB1086147A
GB1086147A GB726765A GB726765A GB1086147A GB 1086147 A GB1086147 A GB 1086147A GB 726765 A GB726765 A GB 726765A GB 726765 A GB726765 A GB 726765A GB 1086147 A GB1086147 A GB 1086147A
Authority
GB
United Kingdom
Prior art keywords
transformer
selector
voltage
output voltage
unit
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
GB726765A
Inventor
Raymond Arthur Lambert
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 GB726765A priority Critical patent/GB1086147A/en
Publication of GB1086147A publication Critical patent/GB1086147A/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
    • G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
    • G05F1/147—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch
    • G05F1/153—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch controlled by discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/32—Supply voltage of the X-ray apparatus or tube

Abstract

1,086,147. Supply systems for X-ray apparatus. GENERAL ELECTRIC CO. Ltd. Feb. 11, 1966 [Feb. 19, 1965; Sept. 16, 1965], Nos. 7267/65 and 39590/65. Heading H2H. [Also in Division G3] The output voltage of a high voltage transformer 6 supplying, for example, an X-ray tube, is determined by the setting of relays 4 connected between the primary winding 5 of transformer 6 and selected tappings 8 of an autotransformer 3 having input terminals 1, 2; associated with transformer 3 is a selector transformer 9 having selector devices 10, 11 connected to the winding of transformer 3, and a voltage sensitive device 12 is connected between a fixed tapping T and any one of a number of additional tappings 13 on the winding of transformer 9. The setting of selector 11 determines the output voltage of transformer 6 and when the selector is adjusted to a new position, the equilibrium condition of unit 12 is disturbed and a control signal is produced for application to a reversible uniselector 14 which is arranged to vary the tapping point 13 to which the unit 12 is connected until equilibrium is restored; at the same time -the uniselector 14 controls the relays 4 so that the output voltage of transformer 6 corresponds to the setting of (selector 11. Any variations in the supply voltage at terminals 1, 2 will also be compensated for by the units 12, 14. The selector 10 may be associated with separate means for adjusting the tube current of X-ray apparatus; when this adjustment takes place, the input voltage to unit 12 is also changed resulting in adjustment of uniselector 14 to actuate the relays 4, thereby ensuring that the output voltage of transformer 6 is re-set to a value compensating for different voltage drops obtained with different tube currents. In an alternative arrangement, described with reference to Fig. 2 (not shown), the output from the selector transformer is applied to the unit 12 which produces a control signal for a reversible electric motor regulating an adjustable tapping means or an impedance connected across the input terminals 1, 2, the positionof the tapping means determining the output voltage of transformer 6.
GB726765A 1965-02-19 1965-02-19 Improvements in or relating to electrical control arrangements Expired GB1086147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB726765A GB1086147A (en) 1965-02-19 1965-02-19 Improvements in or relating to electrical control arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB726765A GB1086147A (en) 1965-02-19 1965-02-19 Improvements in or relating to electrical control arrangements

Publications (1)

Publication Number Publication Date
GB1086147A true GB1086147A (en) 1967-10-04

Family

ID=9829829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB726765A Expired GB1086147A (en) 1965-02-19 1965-02-19 Improvements in or relating to electrical control arrangements

Country Status (1)

Country Link
GB (1) GB1086147A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323982A (en) * 1997-04-01 1998-10-07 Xerox Corp Mains flicker reduction
WO2004001778A1 (en) * 2002-06-21 2003-12-31 Siemens Aktiengesellschaft Circuit arrangement for generating an x-ray tube voltage
WO2004114041A1 (en) * 2003-06-20 2004-12-29 Siemens Power Transmission & Distribution, Inc. Regulated tap transformer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323982A (en) * 1997-04-01 1998-10-07 Xerox Corp Mains flicker reduction
WO2004001778A1 (en) * 2002-06-21 2003-12-31 Siemens Aktiengesellschaft Circuit arrangement for generating an x-ray tube voltage
WO2004114041A1 (en) * 2003-06-20 2004-12-29 Siemens Power Transmission & Distribution, Inc. Regulated tap transformer
US7023193B2 (en) 2003-06-20 2006-04-04 Siemens Power Transmission & Distribution, Inc. Elimination of potential transformer in ANSI Type A voltage regulator

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