JPS5374219A - Field current detector - Google Patents

Field current detector

Info

Publication number
JPS5374219A
JPS5374219A JP14974576A JP14974576A JPS5374219A JP S5374219 A JPS5374219 A JP S5374219A JP 14974576 A JP14974576 A JP 14974576A JP 14974576 A JP14974576 A JP 14974576A JP S5374219 A JPS5374219 A JP S5374219A
Authority
JP
Japan
Prior art keywords
field current
current detector
current
field
detecting
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
JP14974576A
Other languages
Japanese (ja)
Inventor
Einosuke Kato
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 JP14974576A priority Critical patent/JPS5374219A/en
Publication of JPS5374219A publication Critical patent/JPS5374219A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To eliminate a shunt and an insulated amplifier, and to improve reliability and preservation property, by using the detecting end of a field current detector for detecting abnormal current of field current commonly with a current transformer for feedback.
COPYRIGHT: (C)1978,JPO&Japio
JP14974576A 1976-12-15 1976-12-15 Field current detector Pending JPS5374219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14974576A JPS5374219A (en) 1976-12-15 1976-12-15 Field current detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14974576A JPS5374219A (en) 1976-12-15 1976-12-15 Field current detector

Publications (1)

Publication Number Publication Date
JPS5374219A true JPS5374219A (en) 1978-07-01

Family

ID=15481842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14974576A Pending JPS5374219A (en) 1976-12-15 1976-12-15 Field current detector

Country Status (1)

Country Link
JP (1) JPS5374219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156331U (en) * 1980-04-21 1981-11-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156331U (en) * 1980-04-21 1981-11-21

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