JPS56166781A - Braking circuit for inverter device - Google Patents

Braking circuit for inverter device

Info

Publication number
JPS56166781A
JPS56166781A JP6811180A JP6811180A JPS56166781A JP S56166781 A JPS56166781 A JP S56166781A JP 6811180 A JP6811180 A JP 6811180A JP 6811180 A JP6811180 A JP 6811180A JP S56166781 A JPS56166781 A JP S56166781A
Authority
JP
Japan
Prior art keywords
motor
contacts
rotating speed
brake
contact
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
JP6811180A
Other languages
Japanese (ja)
Inventor
Masakatsu Ogami
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6811180A priority Critical patent/JPS56166781A/en
Publication of JPS56166781A publication Critical patent/JPS56166781A/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
    • H02P3/22—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 short-circuit or resistive braking

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent the wasteful power consumption of a brake resistor by stepwisely increasing the brake resistance value inversely proportionally to the rotating speed of a motor. CONSTITUTION:The series units of contacts MC2, MC1, brake resistors R2, R3 are connected with a braking circuit 2 between power lines, and the resistance values of the resistors R1-R3 are set at 3R. While the rotating speed of the motor M is N0-2/3N0, contacts MC1-MC3 are all closed, and the sum of the brake resistors become R. While the rotating speed of the motor is 2/3N0-1/3N0, the contact MC3 is opened, but the contacts MC1, MC2 continue the closed state. While the rotating speed of the motor is 1/3N0-0, the contact MC2 is opened, but only the contact MC1 continues the closed state. That is, the contacts MC1-MC3 are so controlled that the brake resistance values are stepwisely increased corresponding to the rotating speed of the motor M as to the opening and the closing of the contacts. Since the brake resistance value at the braking time is accordingly increased inversely proportionally to the roating speed of the motor M, the wasteful power supply from the power source can be suppressed.
JP6811180A 1980-05-22 1980-05-22 Braking circuit for inverter device Pending JPS56166781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6811180A JPS56166781A (en) 1980-05-22 1980-05-22 Braking circuit for inverter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6811180A JPS56166781A (en) 1980-05-22 1980-05-22 Braking circuit for inverter device

Publications (1)

Publication Number Publication Date
JPS56166781A true JPS56166781A (en) 1981-12-22

Family

ID=13364291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6811180A Pending JPS56166781A (en) 1980-05-22 1980-05-22 Braking circuit for inverter device

Country Status (1)

Country Link
JP (1) JPS56166781A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127584A (en) * 1983-01-11 1984-07-23 Hitachi Ltd Regenerative brake unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59127584A (en) * 1983-01-11 1984-07-23 Hitachi Ltd Regenerative brake unit
JPH0568197B2 (en) * 1983-01-11 1993-09-28 Hitachi Ltd

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