JPS5290019A - Over-load protecting system - Google Patents

Over-load protecting system

Info

Publication number
JPS5290019A
JPS5290019A JP677576A JP677576A JPS5290019A JP S5290019 A JPS5290019 A JP S5290019A JP 677576 A JP677576 A JP 677576A JP 677576 A JP677576 A JP 677576A JP S5290019 A JPS5290019 A JP S5290019A
Authority
JP
Japan
Prior art keywords
over
protecting system
load protecting
load
sequentially varying
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
JP677576A
Other languages
Japanese (ja)
Inventor
Yoshio Sekiyama
Wataru Odagiri
Hideo Tagami
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 JP677576A priority Critical patent/JPS5290019A/en
Publication of JPS5290019A publication Critical patent/JPS5290019A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Direct Current Motors (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

PURPOSE: To obtain an over-load protecting system having an excellent compatibility by sequentially varying a protective characteristic curve and also sequentially varying a switching point between a counter timing and instaneous characteristics.
COPYRIGHT: (C)1977,JPO&Japio
JP677576A 1976-01-23 1976-01-23 Over-load protecting system Pending JPS5290019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP677576A JPS5290019A (en) 1976-01-23 1976-01-23 Over-load protecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP677576A JPS5290019A (en) 1976-01-23 1976-01-23 Over-load protecting system

Publications (1)

Publication Number Publication Date
JPS5290019A true JPS5290019A (en) 1977-07-28

Family

ID=11647537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP677576A Pending JPS5290019A (en) 1976-01-23 1976-01-23 Over-load protecting system

Country Status (1)

Country Link
JP (1) JPS5290019A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698394A (en) * 1980-01-10 1981-08-07 Aida Eng Ltd Overcurrent protector for thyristor leonard device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698394A (en) * 1980-01-10 1981-08-07 Aida Eng Ltd Overcurrent protector for thyristor leonard device

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