JPS5771279A - Dc brake circuit for capcitor phase advancing induction motor - Google Patents

Dc brake circuit for capcitor phase advancing induction motor

Info

Publication number
JPS5771279A
JPS5771279A JP14530380A JP14530380A JPS5771279A JP S5771279 A JPS5771279 A JP S5771279A JP 14530380 A JP14530380 A JP 14530380A JP 14530380 A JP14530380 A JP 14530380A JP S5771279 A JPS5771279 A JP S5771279A
Authority
JP
Japan
Prior art keywords
thyristor
phase advancing
turned
induction motor
brake 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.)
Pending
Application number
JP14530380A
Other languages
Japanese (ja)
Inventor
Hayao Suzuki
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14530380A priority Critical patent/JPS5771279A/en
Publication of JPS5771279A publication Critical patent/JPS5771279A/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 improve the quick responsiveness and the durability of a D.C. brake circuit by employing a switch which short-circuits both ends of a phase advancing capacitor with a low resistance to be used as a bidirectional thyristor. CONSTITUTION:A bidirectional thyristor 16 is connected across the ends of a phase advancing capacitor 12 of a capacitor phase advancing induction motor 11 through a low resistance 13 and the gate thereof is controlled with a photocoupling thyristor 17 according to a brake command. When driving a motor 1, the thyristor 16 and a unidirectional thyristor 15 are turned OFF while a bidirectional thyristor 14 is turned ON. To brake it, the thyristor 14 is turned while the thyristors 16 and 15 are turned ON. During the entry of the brake command, as soon as a voltage is generated in the phase advancing capacitor 12, the thyristor 16 is closed thereby improving the quick responsiveness while any contact is eliminated to improve the durability and the reliability.
JP14530380A 1980-10-17 1980-10-17 Dc brake circuit for capcitor phase advancing induction motor Pending JPS5771279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14530380A JPS5771279A (en) 1980-10-17 1980-10-17 Dc brake circuit for capcitor phase advancing induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14530380A JPS5771279A (en) 1980-10-17 1980-10-17 Dc brake circuit for capcitor phase advancing induction motor

Publications (1)

Publication Number Publication Date
JPS5771279A true JPS5771279A (en) 1982-05-04

Family

ID=15382022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14530380A Pending JPS5771279A (en) 1980-10-17 1980-10-17 Dc brake circuit for capcitor phase advancing induction motor

Country Status (1)

Country Link
JP (1) JPS5771279A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531450A (en) * 1976-06-28 1978-01-09 Nippon Telegr & Teleph Corp <Ntt> Coder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531450A (en) * 1976-06-28 1978-01-09 Nippon Telegr & Teleph Corp <Ntt> Coder

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