JPS5410402A - Protection device for recycling pump - Google Patents

Protection device for recycling pump

Info

Publication number
JPS5410402A
JPS5410402A JP7544477A JP7544477A JPS5410402A JP S5410402 A JPS5410402 A JP S5410402A JP 7544477 A JP7544477 A JP 7544477A JP 7544477 A JP7544477 A JP 7544477A JP S5410402 A JPS5410402 A JP S5410402A
Authority
JP
Japan
Prior art keywords
protection device
recycling pump
mismatching
comparator
spreading
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
JP7544477A
Other languages
Japanese (ja)
Other versions
JPS6146676B2 (en
Inventor
Katsuo Niizawa
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 JP7544477A priority Critical patent/JPS5410402A/en
Publication of JPS5410402A publication Critical patent/JPS5410402A/en
Publication of JPS6146676B2 publication Critical patent/JPS6146676B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Protection Of Generators And Motors (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

PURPOSE: To prevent accident from spreading, by means of abnormal detecting level of a comparator which changes automatically in proportion to a rotative speed signal when a mismatching volume of a speed of a variable pump and an output current of a variable frequency power source exceeds an overload current.
COPYRIGHT: (C)1979,JPO&Japio
JP7544477A 1977-06-27 1977-06-27 Protection device for recycling pump Granted JPS5410402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7544477A JPS5410402A (en) 1977-06-27 1977-06-27 Protection device for recycling pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7544477A JPS5410402A (en) 1977-06-27 1977-06-27 Protection device for recycling pump

Publications (2)

Publication Number Publication Date
JPS5410402A true JPS5410402A (en) 1979-01-26
JPS6146676B2 JPS6146676B2 (en) 1986-10-15

Family

ID=13576417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7544477A Granted JPS5410402A (en) 1977-06-27 1977-06-27 Protection device for recycling pump

Country Status (1)

Country Link
JP (1) JPS5410402A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044437U (en) * 1983-08-31 1985-03-28 株式会社安川電機 AC circuit overcurrent protection device
CN108223401A (en) * 2017-12-30 2018-06-29 盛瑞传动股份有限公司 Electric pump load too high method for diagnosing faults and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140411U (en) * 1975-05-06 1976-11-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140411U (en) * 1975-05-06 1976-11-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044437U (en) * 1983-08-31 1985-03-28 株式会社安川電機 AC circuit overcurrent protection device
CN108223401A (en) * 2017-12-30 2018-06-29 盛瑞传动股份有限公司 Electric pump load too high method for diagnosing faults and device
CN108223401B (en) * 2017-12-30 2020-03-10 盛瑞传动股份有限公司 Electric pump overload fault diagnosis method and device

Also Published As

Publication number Publication date
JPS6146676B2 (en) 1986-10-15

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