JPS57101585A - Breaking method for 3-phase induction motor - Google Patents

Breaking method for 3-phase induction motor

Info

Publication number
JPS57101585A
JPS57101585A JP17749980A JP17749980A JPS57101585A JP S57101585 A JPS57101585 A JP S57101585A JP 17749980 A JP17749980 A JP 17749980A JP 17749980 A JP17749980 A JP 17749980A JP S57101585 A JPS57101585 A JP S57101585A
Authority
JP
Japan
Prior art keywords
motor
thyristors
conducted
thyristor
brake
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.)
Pending
Application number
JP17749980A
Other languages
Japanese (ja)
Inventor
Michiyoshi Nakatsubo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP17749980A priority Critical patent/JPS57101585A/en
Publication of JPS57101585A publication Critical patent/JPS57101585A/en
Pending 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
    • 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)

Abstract

PURPOSE:To brake a motor with a simple construction by switching elements of respective directions of three phases in reponse to the magnitude of rotating speed to generate a braking torque without producing a drive torque. CONSTITUTION:Thyristors 1-6 are conducted during the operation of a motor 7. When the set value of a setting unit 9 is set to zero to brake, a block circuit GC1 operates to interrupt thyristors 2, 3, 6. When the rotating speed of the motor 7 is larger than the set value of the setting unit 11 at this time, a comparator C produces an H level, and produces an L level except that case. In the former case, the thyristors 1, 5 are conducted once at the frequencies of 1/2, 1/4 of the power frequency, and the thyristor 4 is always conducted ON. In the latter case of low speed, the thyristor 1, 4, 5 are always conducted ON, thereby stopping the motor 7.
JP17749980A 1980-12-16 1980-12-16 Breaking method for 3-phase induction motor Pending JPS57101585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17749980A JPS57101585A (en) 1980-12-16 1980-12-16 Breaking method for 3-phase induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17749980A JPS57101585A (en) 1980-12-16 1980-12-16 Breaking method for 3-phase induction motor

Publications (1)

Publication Number Publication Date
JPS57101585A true JPS57101585A (en) 1982-06-24

Family

ID=16031967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17749980A Pending JPS57101585A (en) 1980-12-16 1980-12-16 Breaking method for 3-phase induction motor

Country Status (1)

Country Link
JP (1) JPS57101585A (en)

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