JPS552326A - Operation controller of motor - Google Patents

Operation controller of motor

Info

Publication number
JPS552326A
JPS552326A JP7426878A JP7426878A JPS552326A JP S552326 A JPS552326 A JP S552326A JP 7426878 A JP7426878 A JP 7426878A JP 7426878 A JP7426878 A JP 7426878A JP S552326 A JPS552326 A JP S552326A
Authority
JP
Japan
Prior art keywords
turnabout
contactors
currents
bypass
bypass contactor
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
JP7426878A
Other languages
Japanese (ja)
Inventor
Michimasa Horiuchi
Masahiko Ibamoto
Shoji Kasai
Shunichiro Sugimoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7426878A priority Critical patent/JPS552326A/en
Publication of JPS552326A publication Critical patent/JPS552326A/en
Pending legal-status Critical Current

Links

Landscapes

  • Motor And Converter Starters (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To eliminate the need for providing turnabout contactors with capacity that interrupts currents, by interrupting the currents of a motor circuit by means of a bypass contactor by opening the turnabout contactors so that it continually be delayed more than the bypass contactor.
CONSTITUTION: When an operation switch 9 parts from a location F or a location R, the time delay of a bypass control circuit 10 becomes unconcerned because the excitation of operation coils 4', 5' and an operation coil 8' is simultaneously intercepted by means of the operation switch 9 before the bypass control circuit 10 interrupts the excitation of the operation coil 8'. Thus, the currents of a motor circuit are surely intercepted by means of the bypass contactor 8' if the opening delay time of the bypass contactor 8' is beforehand shortened only by a bit to the opening delay time of turnabout contactors 4, 5.
COPYRIGHT: (C)1980,JPO&Japio
JP7426878A 1978-06-21 1978-06-21 Operation controller of motor Pending JPS552326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7426878A JPS552326A (en) 1978-06-21 1978-06-21 Operation controller of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7426878A JPS552326A (en) 1978-06-21 1978-06-21 Operation controller of motor

Publications (1)

Publication Number Publication Date
JPS552326A true JPS552326A (en) 1980-01-09

Family

ID=13542196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7426878A Pending JPS552326A (en) 1978-06-21 1978-06-21 Operation controller of motor

Country Status (1)

Country Link
JP (1) JPS552326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898251A (en) * 1981-12-07 1983-06-11 住友ベークライト株式会社 High barrier composite film and package

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898251A (en) * 1981-12-07 1983-06-11 住友ベークライト株式会社 High barrier composite film and package

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