GB200431A - Improvements in and relating to electric motor controllers - Google Patents

Improvements in and relating to electric motor controllers

Info

Publication number
GB200431A
GB200431A GB2960222A GB2960222A GB200431A GB 200431 A GB200431 A GB 200431A GB 2960222 A GB2960222 A GB 2960222A GB 2960222 A GB2960222 A GB 2960222A GB 200431 A GB200431 A GB 200431A
Authority
GB
United Kingdom
Prior art keywords
motor
voltage
relay
speed
field
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
GB2960222A
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.)
Cutler Hammer Manufacturing Co
Original Assignee
Cutler Hammer Manufacturing Co
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 Cutler Hammer Manufacturing Co filed Critical Cutler Hammer Manufacturing Co
Priority to GB2960222A priority Critical patent/GB200431A/en
Publication of GB200431A publication Critical patent/GB200431A/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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

200,431. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Oct. 30, 1922. Systems for alternating-current only. - Synchronous motors are started on reduced voltage and are automatically switched over to full voltage by a device subject to a voltage which is a function of the speed of the motor. In the arrangement shown, a synchronous motor A having a field winding F is started by closing a push button switch 11, which through a relay 8 effects the closure of a starting switch 1 connecting the motor to compensator windings 2, 3. The alternating current initially induced in the field F produces sufficient voltage across the terminals of an impedance coil L to open two relays 6, 7. The relay 6 is calibrated to close when the motor reaches an intermediate speed, thereby effecting the closure of a running switch 4 and the opening of the starting switch. The relay 7 is calibrated to close at or near synchronous speed, so as to connect the field to a battery B and cut out the impedance coil L.
GB2960222A 1922-10-30 1922-10-30 Improvements in and relating to electric motor controllers Expired GB200431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2960222A GB200431A (en) 1922-10-30 1922-10-30 Improvements in and relating to electric motor controllers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2960222A GB200431A (en) 1922-10-30 1922-10-30 Improvements in and relating to electric motor controllers

Publications (1)

Publication Number Publication Date
GB200431A true GB200431A (en) 1923-07-12

Family

ID=10294132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2960222A Expired GB200431A (en) 1922-10-30 1922-10-30 Improvements in and relating to electric motor controllers

Country Status (1)

Country Link
GB (1) GB200431A (en)

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