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GB915958A - Improved circuit arrangement for dynamo-electric machines - Google Patents

Improved circuit arrangement for dynamo-electric machines

Info

Publication number
GB915958A
GB915958A GB4029660A GB4029660A GB915958A GB 915958 A GB915958 A GB 915958A GB 4029660 A GB4029660 A GB 4029660A GB 4029660 A GB4029660 A GB 4029660A GB 915958 A GB915958 A GB 915958A
Authority
GB
United Kingdom
Prior art keywords
dynamo
circuit arrangement
motor
electric machines
improved circuit
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
GB4029660A
Inventor
John David Williams
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB4029660A priority Critical patent/GB915958A/en
Publication of GB915958A publication Critical patent/GB915958A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • 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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
    • H02P3/24—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by applying DC to the motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

915,958. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 14, 1961 [Nov. 23, 1960], No. 40296/60. Class 38 (3). In an arrangement whereby a motor 4 is supplied with A.C. from a source 6 for running and D.C. from a supply 22 for braking, and having current transformers 7, 11 forming part of a balanced protective system 15, the D.C. connections are made at points 30 ... 33 so that D.C. does not flow through the transformer primary windings. Changeover is effected by a single switch 16 which may be motor-driven. The switch also connects the motor windings in star for running and two of the windings in series for braking.
GB4029660A 1960-11-23 1960-11-23 Improved circuit arrangement for dynamo-electric machines Expired GB915958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4029660A GB915958A (en) 1960-11-23 1960-11-23 Improved circuit arrangement for dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4029660A GB915958A (en) 1960-11-23 1960-11-23 Improved circuit arrangement for dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB915958A true GB915958A (en) 1963-01-16

Family

ID=10414185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4029660A Expired GB915958A (en) 1960-11-23 1960-11-23 Improved circuit arrangement for dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB915958A (en)

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