JPS5752513A - Protecting method for driving motor of reversing mill - Google Patents

Protecting method for driving motor of reversing mill

Info

Publication number
JPS5752513A
JPS5752513A JP11176880A JP11176880A JPS5752513A JP S5752513 A JPS5752513 A JP S5752513A JP 11176880 A JP11176880 A JP 11176880A JP 11176880 A JP11176880 A JP 11176880A JP S5752513 A JPS5752513 A JP S5752513A
Authority
JP
Japan
Prior art keywords
driving motor
trouble
reversing mill
bearing pedestal
begins
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.)
Granted
Application number
JP11176880A
Other languages
Japanese (ja)
Other versions
JPH0141403B2 (en
Inventor
Toshiyuki Ban
Akira Takechi
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP11176880A priority Critical patent/JPS5752513A/en
Publication of JPS5752513A publication Critical patent/JPS5752513A/en
Publication of JPH0141403B2 publication Critical patent/JPH0141403B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE: To surely prevent occurrence of a burning trouble of a driving motor without necessity of a large scale modification work, by additionally installing a detector generating an output at a prescribed level, when a bearing pedestal of the driving motor laterally displaces to an extent over a prescribed limit.
CONSTITUTION: When a trouble of breakage of a roll neck, etc., happens in a reversing mill, and thereby a spindle begins an oscillating motion, and the displacement of a bearing pedestal 4 becomes l, either one of detectors 7 is actuated at once. Then, an AC-DC power invertor 10 begins its inverting action, a driving motor 1 receives an electric rapid brake, and a high speed breaker 12 is opened after a considerable time delay; hereby, the electric power supply for the motor 1 is interrupted.
COPYRIGHT: (C)1982,JPO&Japio
JP11176880A 1980-08-15 1980-08-15 Protecting method for driving motor of reversing mill Granted JPS5752513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11176880A JPS5752513A (en) 1980-08-15 1980-08-15 Protecting method for driving motor of reversing mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11176880A JPS5752513A (en) 1980-08-15 1980-08-15 Protecting method for driving motor of reversing mill

Publications (2)

Publication Number Publication Date
JPS5752513A true JPS5752513A (en) 1982-03-29
JPH0141403B2 JPH0141403B2 (en) 1989-09-05

Family

ID=14569678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11176880A Granted JPS5752513A (en) 1980-08-15 1980-08-15 Protecting method for driving motor of reversing mill

Country Status (1)

Country Link
JP (1) JPS5752513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007505233A (en) * 2003-09-11 2007-03-08 イマジン エンタープライジーズ， エルエルシー Multi piece bra

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007505233A (en) * 2003-09-11 2007-03-08 イマジン エンタープライジーズ， エルエルシー Multi piece bra

Also Published As

Publication number Publication date
JPH0141403B2 (en) 1989-09-05

Similar Documents

Publication Publication Date Title
JPS5752513A (en) Protecting method for driving motor of reversing mill
JPS5339585A (en) Machine tool
JPS51137419A (en) Jam detector
JPS51121153A (en) Overloading protection system for static inverter
JPS51140070A (en) Controlling method of tension in rewinding machine
JPS5361024A (en) Power-off reset device for inverter
JPS5395222A (en) Protective system for generator
JPS5438513A (en) Controller for ac thyristor motor
JPS51114616A (en) Exciting controller for a synchronous machine
JPS5665751A (en) Feeding tension control method of web
JPS5320260A (en) Apparatus for inverting heavy articles
JPS51121106A (en) Revolving electric machine
JPS51113134A (en) Protective relay system
JPS5614018A (en) Controlling method for speed of hot rolling mill
JPS51137850A (en) Protection and control apparatus for synchronous generator
JPS5257586A (en) Process and apparatus for holing with lathers and like
JPS52125745A (en) Electric energy supervizing method
JPS5295042A (en) Controller for pumped storage power plant
JPS5420583A (en) Device for protecting motor driven conveying apparatus from fire
JPS52126743A (en) Detecteing method and device for reactive power
JPS5393489A (en) Apparatus for controlling table feed speed of machine tool
JPS5385304A (en) Electric revolving machine
JPS5752303A (en) Controller for electric rolling stock
JPS52153115A (en) Damper for synchronous machine
JPS52106448A (en) Generator fluctuation suppressor