ZA808034B - Monitoring device for identifying the operational state of load - Google Patents

Monitoring device for identifying the operational state of load

Info

Publication number
ZA808034B
ZA808034B ZA00808034A ZA808034A ZA808034B ZA 808034 B ZA808034 B ZA 808034B ZA 00808034 A ZA00808034 A ZA 00808034A ZA 808034 A ZA808034 A ZA 808034A ZA 808034 B ZA808034 B ZA 808034B
Authority
ZA
South Africa
Prior art keywords
load
monitoring device
identifying
operational state
check
Prior art date
Application number
ZA00808034A
Other languages
English (en)
Inventor
R Boschulte
H Kohnecke
S Mucke
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA808034B publication Critical patent/ZA808034B/xx

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/902—Optical coupling to semiconductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/909—Remote sensing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Control Of Electric Motors In General (AREA)
  • Alarm Systems (AREA)
ZA00808034A 1979-12-27 1980-12-23 Monitoring device for identifying the operational state of load ZA808034B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2952462A DE2952462C2 (de) 1979-12-27 1979-12-27 Überwachungseinrichtung zum Kennzeichnen des Betriebszustandes eines Verbrauchers

Publications (1)

Publication Number Publication Date
ZA808034B true ZA808034B (en) 1982-01-27

Family

ID=6089732

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00808034A ZA808034B (en) 1979-12-27 1980-12-23 Monitoring device for identifying the operational state of load

Country Status (5)

Country Link
US (1) US4371831A (fr)
EP (1) EP0031471B1 (fr)
AT (1) ATE12053T1 (fr)
DE (2) DE2952462C2 (fr)
ZA (1) ZA808034B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3141661A1 (de) * 1981-10-21 1983-05-05 Brown, Boveri & Cie Ag, 6800 Mannheim Einrichtung zur ueberwachung von stromkreisen
DE3229750C2 (de) * 1982-08-10 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Überwachungseinheit für Meßwerte, insbesondere eines Stromrichter-Zwischenkreises
IT1169167B (it) * 1983-02-15 1987-05-27 Gd Spa Sistema di controllo funzionale per trasduttori di uscita di un'unita' centrale di controllo e comando per macchine e/o dispositivi utilizzabili in linee di produzione e/o confezionamento di prodotti
DE3413343A1 (de) * 1984-04-09 1985-10-24 Siemens AG, 1000 Berlin und 8000 München Sichere meldedatenanzeige
DE3528540A1 (de) * 1985-08-08 1987-02-19 Siemens Ag Vorrichtung zur ueberwachung des laeuferstromes eines schleifringlaeufermotors einer stromrichterkaskade
DE3706264A1 (de) * 1987-02-26 1988-09-08 Siemens Ag Schaltungsanordnung zur ueberwachung einer an einem medizinischen, insbesondere zahnmedizinischen geraet abzugebenden leistung
DE3931063A1 (de) * 1989-09-14 1991-03-28 Siemens Ag Schaltungsanordnung zur ueberwachung einer stromversorgungseinrichtung auf spannungsunterschreitung
DE4014267A1 (de) * 1990-05-04 1991-11-07 Kommunikations Elektronik Schaltungsanordnung zur erkennung eines in einer elektrischen leitung fliessenden stroms
EP0655553B1 (fr) * 1993-11-29 1998-01-21 STMicroelectronics S.r.l. Génération d'un signal diagnostique quand le courant à travers un transistor de puissance atteint un niveau près du courant limite

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL250589A (fr) * 1960-04-14
US3341748A (en) * 1964-05-13 1967-09-12 Lorain Prod Corp High-low voltage sensitive signaling circuit utilizing semiconductors
DE1690158A1 (de) * 1968-03-18 1971-05-06 Siemens Ag Schaltungsanordnung zum UEberpruefen des ordnungsgerechten Betriebsverhaltens von Abgabe- und Empfangseinrichtungen fuer Meldungen und Kommandos in Fernwirkanlagen
US3582926A (en) * 1968-04-08 1971-06-01 Crane Co Temperature indicator for aircraft brakes and the like
US3679965A (en) * 1971-02-25 1972-07-25 Pioneer Magnetics Inc Power supply voltage output detector
US3885231A (en) * 1973-10-19 1975-05-20 Gen Electric Remote control circuit having light coupling
US3992636A (en) * 1976-02-05 1976-11-16 Allen-Bradley Company Digital input circuit with fault detection means
US4115830A (en) * 1977-04-01 1978-09-19 Applied Radiation Corporation Monitoring system for high-voltage supply

Also Published As

Publication number Publication date
DE2952462C2 (de) 1982-01-21
US4371831A (en) 1983-02-01
DE2952462B1 (de) 1981-05-14
ATE12053T1 (de) 1985-03-15
EP0031471B1 (fr) 1985-03-06
EP0031471A2 (fr) 1981-07-08
DE3070259D1 (en) 1985-04-11
EP0031471A3 (en) 1982-01-27

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