JPS57203970A - Detecting circuit for abnormality of load - Google Patents

Detecting circuit for abnormality of load

Info

Publication number
JPS57203970A
JPS57203970A JP8937481A JP8937481A JPS57203970A JP S57203970 A JPS57203970 A JP S57203970A JP 8937481 A JP8937481 A JP 8937481A JP 8937481 A JP8937481 A JP 8937481A JP S57203970 A JPS57203970 A JP S57203970A
Authority
JP
Japan
Prior art keywords
load
meter
comparator
line
detecting circuit
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
JP8937481A
Other languages
Japanese (ja)
Inventor
Yoshinori Jinno
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8937481A priority Critical patent/JPS57203970A/en
Publication of JPS57203970A publication Critical patent/JPS57203970A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To enable connection of a load abnormality detecting circuit without disconnecting a device to be measured from a power supply by using a clamp- on meter for a load current detecting unit and by comparing a detection value thereof with a load voltage by a comparator. CONSTITUTION:A clamp-on meter 6 is connected by clipping to a line between a power supply unit 4 and a load 5, and resistors 7 and 8 are inserted between the meter 6 and a terminal of the unit 4 positioned on the side whreto the meter 6 is not connected. A line between the resistors 7 and 8 is connected to the side of a comparison terminal 14 of a comparator 9, while the side of a reference terminal of the comparator 9 is connected to a line on the clip-connected side of the meter 6.
JP8937481A 1981-06-10 1981-06-10 Detecting circuit for abnormality of load Pending JPS57203970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8937481A JPS57203970A (en) 1981-06-10 1981-06-10 Detecting circuit for abnormality of load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8937481A JPS57203970A (en) 1981-06-10 1981-06-10 Detecting circuit for abnormality of load

Publications (1)

Publication Number Publication Date
JPS57203970A true JPS57203970A (en) 1982-12-14

Family

ID=13968907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8937481A Pending JPS57203970A (en) 1981-06-10 1981-06-10 Detecting circuit for abnormality of load

Country Status (1)

Country Link
JP (1) JPS57203970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180422A (en) * 1983-03-31 1984-10-13 Caterpillar Mitsubishi Ltd Running-locus analyzing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180422A (en) * 1983-03-31 1984-10-13 Caterpillar Mitsubishi Ltd Running-locus analyzing system

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