JPS56133992A - Braking device for synchronous machine - Google Patents

Braking device for synchronous machine

Info

Publication number
JPS56133992A
JPS56133992A JP3696680A JP3696680A JPS56133992A JP S56133992 A JPS56133992 A JP S56133992A JP 3696680 A JP3696680 A JP 3696680A JP 3696680 A JP3696680 A JP 3696680A JP S56133992 A JPS56133992 A JP S56133992A
Authority
JP
Japan
Prior art keywords
synchronous machine
field
turning
terminals
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
JP3696680A
Other languages
Japanese (ja)
Inventor
Tomoyoshi Takanashi
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 JP3696680A priority Critical patent/JPS56133992A/en
Publication of JPS56133992A publication Critical patent/JPS56133992A/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

Landscapes

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

Abstract

PURPOSE:To miniaturize a switch for three-phase short circuit into a two-phase configuration by turning on the switch for three-phase short circuit on an armature winding under the condition of turning off a field breaker wherein the field breaker is then turned on to apply braking to a synchronous machine by flowing an exiciting current to a field winding. CONSTITUTION:In braking the synchronous machine to stop, the three-phase short circuit is applied to an armature 1 at terminals 6 by a disconnecting switch 4 after a field winding 2 is made in no exciting condition by turning off the field breaker 3 on the condition that the terminals 6 are electrically isolated from a system. At that time, the synchronous machine creates no voltage at the main circuit terminals 6 and is composed of a mechanical system only. Therefore, a two-pole configuration is enough for the disconnecting switch 4. Then, a short current is flowed into a circuit including the armature 1 and the disconnecting switch 4 by turning on the field breaker 3 to supply the field coil 2 with a required exciting current through a separate power unit 5 for excitation and ohmic loss generated in the circuit contributes to the braking of the synchronous machine together with mechanical loss or the like.
JP3696680A 1980-03-25 1980-03-25 Braking device for synchronous machine Pending JPS56133992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3696680A JPS56133992A (en) 1980-03-25 1980-03-25 Braking device for synchronous machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3696680A JPS56133992A (en) 1980-03-25 1980-03-25 Braking device for synchronous machine

Publications (1)

Publication Number Publication Date
JPS56133992A true JPS56133992A (en) 1981-10-20

Family

ID=12484469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3696680A Pending JPS56133992A (en) 1980-03-25 1980-03-25 Braking device for synchronous machine

Country Status (1)

Country Link
JP (1) JPS56133992A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990837A (en) * 1986-03-06 1991-02-05 Mitsubishi Denki Kabushiki Kaisha Dynamic braking apparatus for a motor
US7372227B2 (en) * 2003-11-14 2008-05-13 Bernecker + Rainer Industrie-Elektronik Gesellschaft M.B.H. Apparatus for braking a synchronous machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990837A (en) * 1986-03-06 1991-02-05 Mitsubishi Denki Kabushiki Kaisha Dynamic braking apparatus for a motor
US7372227B2 (en) * 2003-11-14 2008-05-13 Bernecker + Rainer Industrie-Elektronik Gesellschaft M.B.H. Apparatus for braking a synchronous machine

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