GB1184801A - Improvements in Voltage Control Circuits including Tap-Changing Transformers - Google Patents

Improvements in Voltage Control Circuits including Tap-Changing Transformers

Info

Publication number
GB1184801A
GB1184801A GB1253366A GB1253366A GB1184801A GB 1184801 A GB1184801 A GB 1184801A GB 1253366 A GB1253366 A GB 1253366A GB 1253366 A GB1253366 A GB 1253366A GB 1184801 A GB1184801 A GB 1184801A
Authority
GB
United Kingdom
Prior art keywords
circuit
tap
voltage
transductors
control
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
GB1253366A
Inventor
Alun Charles Lester Morgan
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB1253366A priority Critical patent/GB1184801A/en
Publication of GB1184801A publication Critical patent/GB1184801A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/30—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using magnetic devices with controllable degree of saturation, i.e. transductors
    • 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
    • G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Abstract

1,184,801. Control of D.C. motors. A. REYROLLE & CO. Ltd. 6 April, 1967 [22 March, 1966], No. 12533/66. Heading H2J. [Also in Division H1] Variable voltage control of a D.C. motor 103 is provided by means of a tap-changing system associated with a three-phase auto-transformer 100 and incorporating transductors T A , T B , T c , a compensating resistor R being placed into or cut out of circuit as the transductors in a saturated condition are switched (simultaneously) out of and into circuit during tapchanging. An auxiliary circuit comprising a tapped transformer 107 and rectifier 110 ensure that a minimum current is supplied to the control windings of the transductors to prevent the load voltage obtained from any tap falling below the maximum voltage obtainable from the next lower tap. Also the low-voltage limit of armature is set by a suitable choice of the tapping voltage of 107 and of the circuit impedance of the auxiliary circuit.
GB1253366A 1966-03-22 1966-03-22 Improvements in Voltage Control Circuits including Tap-Changing Transformers Expired GB1184801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1253366A GB1184801A (en) 1966-03-22 1966-03-22 Improvements in Voltage Control Circuits including Tap-Changing Transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1253366A GB1184801A (en) 1966-03-22 1966-03-22 Improvements in Voltage Control Circuits including Tap-Changing Transformers

Publications (1)

Publication Number Publication Date
GB1184801A true GB1184801A (en) 1970-03-18

Family

ID=10006363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1253366A Expired GB1184801A (en) 1966-03-22 1966-03-22 Improvements in Voltage Control Circuits including Tap-Changing Transformers

Country Status (1)

Country Link
GB (1) GB1184801A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272338A (en) * 1992-11-10 1994-05-11 Dee Electronics Limited Speed controller for electric motor
EP1947545A3 (en) * 2007-01-18 2009-04-29 AEG Power Supply Systems GmbH Power supply circuit for changing loads with three phases
CN116093951A (en) * 2022-12-27 2023-05-09 武汉武新电气科技股份有限公司 Self-coupling line terminal voltage lifting device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272338A (en) * 1992-11-10 1994-05-11 Dee Electronics Limited Speed controller for electric motor
EP1947545A3 (en) * 2007-01-18 2009-04-29 AEG Power Supply Systems GmbH Power supply circuit for changing loads with three phases
CN116093951A (en) * 2022-12-27 2023-05-09 武汉武新电气科技股份有限公司 Self-coupling line terminal voltage lifting device and method

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees