JPH01136519A - Electronic type circuit breaker - Google Patents

Electronic type circuit breaker

Info

Publication number
JPH01136519A
JPH01136519A JP29246187A JP29246187A JPH01136519A JP H01136519 A JPH01136519 A JP H01136519A JP 29246187 A JP29246187 A JP 29246187A JP 29246187 A JP29246187 A JP 29246187A JP H01136519 A JPH01136519 A JP H01136519A
Authority
JP
Japan
Prior art keywords
leads
currents flowing
sum
difference
detectors
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
JP29246187A
Other languages
Japanese (ja)
Inventor
Atsushi Yoshida
Satoshi Suzuki
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.)
KAWAMURA DENKI SANGYO
KAWAMURA DENKI SANGYO KK
Original Assignee
KAWAMURA DENKI SANGYO
KAWAMURA DENKI SANGYO KK
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 KAWAMURA DENKI SANGYO, KAWAMURA DENKI SANGYO KK filed Critical KAWAMURA DENKI SANGYO
Priority to JP29246187A priority Critical patent/JPH01136519A/en
Publication of JPH01136519A publication Critical patent/JPH01136519A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect an overcurrent with a simple configuration having two current detectors by employing first and second power source detectors for detecting the sum or difference of currents flowing to leads.
CONSTITUTION: The sum or difference of currents flowing to two 3r, 3s of 3-wired leads 3r, 3s, 3t is detected by a current detector 6, and the sum or difference of the currents flowing to the two leads 3s, 3t is detected by a current detector 9. The outputs of the detectors 6, 9 are input through rectifiers 12, 14 to a controller 25, and the currents flowing to the leads 3r, 3s, 3t are calculated. When the calculated current value exceeds a predetermined value, a thyristor 23 is conducted, and a breaking switch 20.
COPYRIGHT: (C)1989,JPO&Japio
JP29246187A 1987-11-19 1987-11-19 Electronic type circuit breaker Pending JPH01136519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29246187A JPH01136519A (en) 1987-11-19 1987-11-19 Electronic type circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29246187A JPH01136519A (en) 1987-11-19 1987-11-19 Electronic type circuit breaker

Publications (1)

Publication Number Publication Date
JPH01136519A true JPH01136519A (en) 1989-05-29

Family

ID=17782105

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29246187A Pending JPH01136519A (en) 1987-11-19 1987-11-19 Electronic type circuit breaker

Country Status (1)

Country Link
JP (1) JPH01136519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001119986A (en) * 1999-10-14 2001-04-27 Nissan Motor Co Ltd Method and apparatus for detecting current of sr motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001119986A (en) * 1999-10-14 2001-04-27 Nissan Motor Co Ltd Method and apparatus for detecting current of sr motor

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