JPS5421893A - Method and device for measuring mechanical braking force in direct current elevator - Google Patents

Method and device for measuring mechanical braking force in direct current elevator

Info

Publication number
JPS5421893A
JPS5421893A JP8707977A JP8707977A JPS5421893A JP S5421893 A JPS5421893 A JP S5421893A JP 8707977 A JP8707977 A JP 8707977A JP 8707977 A JP8707977 A JP 8707977A JP S5421893 A JPS5421893 A JP S5421893A
Authority
JP
Japan
Prior art keywords
direct current
braking force
mechanical braking
current elevator
measuring mechanical
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
JP8707977A
Other languages
Japanese (ja)
Inventor
Kazumitsu Aoki
Yoshio Sakai
Akihiro Sato
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 JP8707977A priority Critical patent/JPS5421893A/en
Publication of JPS5421893A publication Critical patent/JPS5421893A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To measure the braking force of the mechanical brake in an direct current elevator safely and easily by applying a fixed magnetic field current and gradually increasing armature voltage to the direct current motor and measuring the armature current upon start to work.
COPYRIGHT: (C)1979,JPO&Japio
JP8707977A 1977-07-20 1977-07-20 Method and device for measuring mechanical braking force in direct current elevator Pending JPS5421893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8707977A JPS5421893A (en) 1977-07-20 1977-07-20 Method and device for measuring mechanical braking force in direct current elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8707977A JPS5421893A (en) 1977-07-20 1977-07-20 Method and device for measuring mechanical braking force in direct current elevator

Publications (1)

Publication Number Publication Date
JPS5421893A true JPS5421893A (en) 1979-02-19

Family

ID=13904928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8707977A Pending JPS5421893A (en) 1977-07-20 1977-07-20 Method and device for measuring mechanical braking force in direct current elevator

Country Status (1)

Country Link
JP (1) JPS5421893A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006052040A (en) * 2004-08-10 2006-02-23 Fujitec Co Ltd Method and device for calibrating load of elevator
KR100731603B1 (en) * 2002-11-20 2007-06-22 미쓰비시 덴키 빌딩 테크노 서비스 가부시키 가이샤 Device and method for measuring brake torque in elevator
JP2008133096A (en) * 2006-11-28 2008-06-12 Toshiba Elevator Co Ltd Elevator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100731603B1 (en) * 2002-11-20 2007-06-22 미쓰비시 덴키 빌딩 테크노 서비스 가부시키 가이샤 Device and method for measuring brake torque in elevator
CN100465604C (en) * 2002-11-20 2009-03-04 三菱电机建筑技术服务株式会社 Device and method for measuring torque of elevator
JP2006052040A (en) * 2004-08-10 2006-02-23 Fujitec Co Ltd Method and device for calibrating load of elevator
JP2008133096A (en) * 2006-11-28 2008-06-12 Toshiba Elevator Co Ltd Elevator

Similar Documents

Publication Publication Date Title
JPS5421893A (en) Method and device for measuring mechanical braking force in direct current elevator
JPS5422647A (en) Safety device of elevator
JPS5336620A (en) Power braking device for dc electric motor
JPS5247175A (en) Magnetic brake device
JPS5251644A (en) Emergency braking device for elevator
JPS5436521A (en) Dc braking method for induction motor
JPS5429443A (en) Drive control apparatus for manless transport car
JPS5258813A (en) Ac motor control circuit
JPS5323020A (en) Electric al car brake control device
JPS52118215A (en) Braking device of electrical car
JPS51143824A (en) Braking apparatus for induction motor
JPS5321726A (en) Controller for electric motor vehicle
JPS5373711A (en) Control device for electric motor vehicle
JPS5532415A (en) Brake for motor
JPS5240270A (en) Eddy current braking device of a magnetic bearing
JPS5372120A (en) Control device of alternating current motor
JPS51150016A (en) Control device of induction motor
JPS5415247A (en) Device for controlling ac elevator cage
JPS5342315A (en) Drive circuit for induction motor
JPS51132522A (en) Protecting device for use in electric car
JPS53135001A (en) Driving system for turbo-machines
JPS5264737A (en) Controlling device for landing descallation of elevator
JPS5418514A (en) Brake device for electric motor vehicle
JPS538947A (en) Safety device of elevator
JPS53135416A (en) Chopper controller