ZA808034B - Monitoring device for identifying the operational state of load - Google Patents
Monitoring device for identifying the operational state of loadInfo
- 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
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)
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)
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)
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 |
-
1979
- 1979-12-27 DE DE2952462A patent/DE2952462C2/de not_active Expired
-
1980
- 1980-11-24 US US06/209,483 patent/US4371831A/en not_active Expired - Lifetime
- 1980-11-27 EP EP80107435A patent/EP0031471B1/fr not_active Expired
- 1980-11-27 DE DE8080107435T patent/DE3070259D1/de not_active Expired
- 1980-11-27 AT AT80107435T patent/ATE12053T1/de not_active IP Right Cessation
- 1980-12-23 ZA ZA00808034A patent/ZA808034B/xx unknown
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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