JPS5759492A - Protecting method for imduction motor - Google Patents

Protecting method for imduction motor

Info

Publication number
JPS5759492A
JPS5759492A JP55132853A JP13285380A JPS5759492A JP S5759492 A JPS5759492 A JP S5759492A JP 55132853 A JP55132853 A JP 55132853A JP 13285380 A JP13285380 A JP 13285380A JP S5759492 A JPS5759492 A JP S5759492A
Authority
JP
Japan
Prior art keywords
motor
overload
omegar
relationship
primary current
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
JP55132853A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6349475B2 (enrdf_load_stackoverflow
Inventor
Kenichi Otsuka
Katsu Maekawa
Ryusuke Udagawa
Tadaharu Ko
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 JP55132853A priority Critical patent/JPS5759492A/ja
Publication of JPS5759492A publication Critical patent/JPS5759492A/ja
Publication of JPS6349475B2 publication Critical patent/JPS6349475B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load

Landscapes

  • Control Of Ac Motors In General (AREA)
JP55132853A 1980-09-26 1980-09-26 Protecting method for imduction motor Granted JPS5759492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55132853A JPS5759492A (en) 1980-09-26 1980-09-26 Protecting method for imduction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132853A JPS5759492A (en) 1980-09-26 1980-09-26 Protecting method for imduction motor

Publications (2)

Publication Number Publication Date
JPS5759492A true JPS5759492A (en) 1982-04-09
JPS6349475B2 JPS6349475B2 (enrdf_load_stackoverflow) 1988-10-04

Family

ID=15091046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55132853A Granted JPS5759492A (en) 1980-09-26 1980-09-26 Protecting method for imduction motor

Country Status (1)

Country Link
JP (1) JPS5759492A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63140692A (ja) * 1986-12-01 1988-06-13 Tokyo Gas Co Ltd 可変速駆動する回転負荷機械のミニマムフロー運転状態検出方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63140692A (ja) * 1986-12-01 1988-06-13 Tokyo Gas Co Ltd 可変速駆動する回転負荷機械のミニマムフロー運転状態検出方法

Also Published As

Publication number Publication date
JPS6349475B2 (enrdf_load_stackoverflow) 1988-10-04

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