EP0357343A3 - Méthode et dispositif pour protéger un équipement électrique - Google Patents

Méthode et dispositif pour protéger un équipement électrique Download PDF

Info

Publication number
EP0357343A3
EP0357343A3 EP19890308612 EP89308612A EP0357343A3 EP 0357343 A3 EP0357343 A3 EP 0357343A3 EP 19890308612 EP19890308612 EP 19890308612 EP 89308612 A EP89308612 A EP 89308612A EP 0357343 A3 EP0357343 A3 EP 0357343A3
Authority
EP
European Patent Office
Prior art keywords
input signal
level
generating
electromagnetic interference
protecting electrical
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.)
Withdrawn
Application number
EP19890308612
Other languages
German (de)
English (en)
Other versions
EP0357343A2 (fr
Inventor
Hendrik Jacobus Geldenhuys
Rene Bruno Lagesse
Gavin William Bourn
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.)
Council of Scientific and Industrial Research CSIR
Original Assignee
Council of Scientific and Industrial Research CSIR
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 Council of Scientific and Industrial Research CSIR filed Critical Council of Scientific and Industrial Research CSIR
Publication of EP0357343A2 publication Critical patent/EP0357343A2/fr
Publication of EP0357343A3 publication Critical patent/EP0357343A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
EP19890308612 1988-09-02 1989-08-24 Méthode et dispositif pour protéger un équipement électrique Withdrawn EP0357343A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA886541 1988-09-02
ZA886541 1988-09-02

Publications (2)

Publication Number Publication Date
EP0357343A2 EP0357343A2 (fr) 1990-03-07
EP0357343A3 true EP0357343A3 (fr) 1990-12-27

Family

ID=25579401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890308612 Withdrawn EP0357343A3 (fr) 1988-09-02 1989-08-24 Méthode et dispositif pour protéger un équipement électrique

Country Status (1)

Country Link
EP (1) EP0357343A3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166661A (en) * 1991-06-07 1992-11-24 Advance Security Inc. Automobile alarm system with noise reduction function
DE102004029360B4 (de) * 2004-06-17 2007-06-21 Siemens Ag Gerät mit einem Betriebszustand und einem Unterbrechungszustand
MY146281A (en) * 2008-03-17 2012-07-31 Chang Pak Chuen Electrical interface protecting apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH105100A (de) * 1923-04-26 1924-06-02 Oerlikon Maschf Verfahren und Einrichtung zum Schutz elektrischer Anlagen gegen unerwünschte Funken- und Lichtbogenbildung.
GB1030243A (en) * 1963-02-01 1966-05-18 Napier & Son Ltd Means for detecting a fault on an electrical supply system
GB1119941A (en) * 1966-08-19 1968-07-17 George Scott Bowman Protection device
DE1279512B (de) * 1967-06-28 1968-10-03 August Woerl Schaltung zur Verhinderung von Fehlalarmen bei UEberwachungsanlagen mit elektromagnetischen Feldern oder Schall- bzw. Ultraschallfeldern
US4206451A (en) * 1975-11-05 1980-06-03 Honeywell Inc. Intrusion detection system
US4466071A (en) * 1981-09-28 1984-08-14 Texas A&M University System High impedance fault detection apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH105100A (de) * 1923-04-26 1924-06-02 Oerlikon Maschf Verfahren und Einrichtung zum Schutz elektrischer Anlagen gegen unerwünschte Funken- und Lichtbogenbildung.
GB1030243A (en) * 1963-02-01 1966-05-18 Napier & Son Ltd Means for detecting a fault on an electrical supply system
GB1119941A (en) * 1966-08-19 1968-07-17 George Scott Bowman Protection device
DE1279512B (de) * 1967-06-28 1968-10-03 August Woerl Schaltung zur Verhinderung von Fehlalarmen bei UEberwachungsanlagen mit elektromagnetischen Feldern oder Schall- bzw. Ultraschallfeldern
US4206451A (en) * 1975-11-05 1980-06-03 Honeywell Inc. Intrusion detection system
US4466071A (en) * 1981-09-28 1984-08-14 Texas A&M University System High impedance fault detection apparatus and method

Also Published As

Publication number Publication date
EP0357343A2 (fr) 1990-03-07

Similar Documents

Publication Publication Date Title
WO1991001027A3 (fr) Detection de sequence interdite et circuit de protection
GB2330231A (en) Method and apparatus for predicting a fault condition
MY114126A (en) Disk drive and method for minimizing shock-induced damage
DE3879512D1 (de) Vorrichtung und verfahren zur ausloesung eines sicherheitssystems zum schutz von kraftfahrzeuginsassen.
AU566331B2 (en) Detecting proximity to electrical power lines
GB2272062B (en) Improvements in and relating to particle detection and analysis
GB2089173B (en) A method of and an apparatus for the protection of an electronic device against destruction by strong electromagnetic pulses
EP0387837A3 (fr) Système de détection d'anomalies dans des alimentations, discernables de l'extérieur
EP0232200A3 (en) Rate of change of pressure temperature protection system for a turbine
GB8824124D0 (en) Apparatus & method for detecting potentially fire generating electrical fault
EP0127258A3 (fr) Système de contrôle de sécurité pour appareillage électrique
ATE98825T1 (de) Verfahren zum einstellen elektronischer schaltungen.
EP0347189A3 (fr) Circuit de protection d'entrée pour dispositif semi-conducteur
JPS5736584A (en) Shortcircuit protection device
AU628683B2 (en) Electronic gap sensor and method
EP0823764A3 (fr) Procédé pour la vérification du fonctionnement et pour la détermination du courant de déclenchement des disjoncteurs sensibles à tout courant de défaut
SE9903005L (sv) Apparat för att detektera partiklar från radioaktivt sönderfall, samt en metod för att mäta halten av radioaktivitet
FR2603951A1 (fr) Procede pour controler le circuit d'allumage d'un moteur a combustion interne et dispositif pour detecter et/ou mesurer le courant d'allumage dans un tel circuit d'allumage pour la mise en oeuvre de ce procede
SU1005124A1 (ru) Способ индивидуальной защиты от поражени электрическим током и устройство дл его осуществлени
JPS57110540A (en) Alarm device for intense electromagnetic field of automobile
HK1004038A1 (en) Ground detecting method for inverter unit and apparatus therefor
EP0258931A3 (fr) Méthode pour déterminer la position relative d'un objet posé sur le fond de l'eau et d'un objet sous-marin
JPS6428440A (en) Protection device for ventilation fan
JPS6460223A (en) Excess current detector for motor
JPS5420698A (en) Detector for prevention

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LAGESSE, RENE BRUNO

Inventor name: BOURN, GAVIN WILLIAM

Inventor name: GELDENHUYS, HENDRIK JACOBUS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910628