WO2001033686A2 - Procede de controle du fonctionnement d'un composant d'un appareil electrique - Google Patents

Procede de controle du fonctionnement d'un composant d'un appareil electrique Download PDF

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Publication number
WO2001033686A2
WO2001033686A2 PCT/DE2000/003714 DE0003714W WO0133686A2 WO 2001033686 A2 WO2001033686 A2 WO 2001033686A2 DE 0003714 W DE0003714 W DE 0003714W WO 0133686 A2 WO0133686 A2 WO 0133686A2
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
trigger
component
monitoring
duration
Prior art date
Application number
PCT/DE2000/003714
Other languages
German (de)
English (en)
Other versions
WO2001033686A3 (fr
Inventor
Ulrich Baumgaertl
Henry Franke
Wolfgang Roehl
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP00984849A priority Critical patent/EP1293022A2/fr
Publication of WO2001033686A2 publication Critical patent/WO2001033686A2/fr
Publication of WO2001033686A3 publication Critical patent/WO2001033686A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part

Definitions

  • Such monitoring can take place in such a way that the module is subjected to an electrical, optical or acoustic test pulse and the reaction of the module due to a special property of the component is detected and evaluated.
  • An electrical device in which components need to be monitored for their functionality during operation are, for example, electrical switching devices.
  • electrical switching devices For medium-voltage switchgear that uses a vacuum
  • Contain 20 switching tube a method for monitoring the pressure of the vacuum switching tube known, in which ultrasonic waves are sent as acoustic test pulses in the vacuum switching tube and in which ultrasound waves reflected in the vacuum switching tube are received and in which those received
  • Circuit breakers that are integrated in power distribution networks in the low-voltage range are triggered a switching process used, among other things, undervoltage and overcurrent releases that have a release magnet; when the release magnet responds, the circuit breaker is triggered (brochure "Circuit breaker 3WN1" from Siemens AG, 1986, pages 1 to 13).
  • the overcurrent releases used in such switches are designed as "magnetically bonded” releases, i.e. they have one Trigger coil applied to the magnetic core, an impact anchor, which is under the action of a magnetic or mechanical spring, and a captive magnet associated with the impact anchor.
  • the shackle magnet is a permanent magnet that, when the trigger is at rest, holds the anchor in the ready-to-fire position.
  • the magnetic field generated by the tripping coil weakens the magnetic field of the captive magnet so that it can move under the influence of the magnetic field generated and / or the spring force (DE 27 55 645 Bl, DE 42 38 939 AI).
  • the desired tripping current precisely and to prevent the setting from being influenced by shocks and vibrations. This is no longer guaranteed if the remanence of the permanent magnet, with which the impact armature is held before triggering, decreases in the course of an aging process.
  • the invention is therefore based on the object to provide a way to monitor the holding force of the captive magnet.
  • the trigger coil at a time before the due to the Overcurrent predicted activation of the tripping magnet is loaded with a current pulse, the duration of which is below the duration required for the tripping coil to respond.
  • the tripping voltage given to the tripping coil for the test purpose has the same value as the tripping voltage intended for the actual tripping, but the voltage pulse must be chosen to be shorter in time. Due to the inductance of the tripping coil, the current does not exceed the value required for tripping if the permanent magnet is intact.
  • the triggering of the trigger coil which is used to monitor the holding force of the permanent magnet, can also be carried out in several increasing stages by gradually increasing the duration of the test pulses applied in succession.
  • a particular advantage of the new monitoring method is that it does not require any additional mechanical or electrical or electronic components, but rather only through appropriate programming in the microprocessor assigned to the overcurrent release. calls. Switches that are already in operation can be switched on
  • EPROMS Fixed memory exchange
  • the monitoring method designed according to the invention is expediently used only in the case of so-called “time-uncritical" triggers, that is to say not in the event of a short circuit or in the case of very high currents.
  • Time-uncritical tripping occurs when the tripping time predicted when an overcurrent occurs is more than 3 s.
  • a circuit arrangement with which the new monitoring method can be carried out is shown in the figure.
  • Part of the circuit arrangement is a rectifier circuit 5, which is fed via the secondary winding 4 of a current transformer 3 from a phase 1 of a low-voltage power distribution network.
  • a trigger magnet 11 is assigned to the rectifier circuit 5 as a consumer, which, when activated, controls a switch 2 arranged in phase 1 of the low-voltage high-voltage power network.
  • a diode 14 and an electronic switch 12 are arranged.
  • the electronic switch 12 can be controlled directly or - by means of a control circuit 15 - indirectly from a microprocessor-controlled trigger circuit 8.
  • Both the trigger circuit 8 and further electronic components of the circuit are supplied with voltage by a power supply unit 7, which contains a voltage regulator.
  • a charging capacitor 6 and an electronic switch 10 are also arranged parallel to the trigger magnet 11, the electronic switch 10 for regulating the charging voltage of the Charging capacitor 6 is used and can be controlled directly or - by means of a control circuit 9 - indirectly from the microprocessor-controlled trigger circuit 8.
  • An overcurrent occurring in the low-voltage power distribution network is communicated to the trigger circuit 8 by a corresponding voltage drop across the measuring resistor 13.
  • the microprocessor contained in the trip circuit 8 calculates the expected trip time for the trip magnet 11 due to the size of the overcurrent.
  • the microprocessor is further programmed to operate about 50 to 100 ms before the trip magnet 11 is triggered by actuating the electronic switch 12 gives a test pulse to the trigger magnet 11, the duration of which is shorter than the duration required to respond to the trigger magnet. If this control leads to the triggering of the trigger magnet 11, then this is a sign that the captive magnet no longer has the required remanence.
  • the premature triggering is registered by the trigger circuit 8 and can be displayed as an error.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Keying Circuit Devices (AREA)

Abstract

L'invention vise à contrôler la force de rétention d'un aimant permanent disposé en tant que partie d'un aimant de déclenchement (11) dans un discontacteur d'un disjoncteur (2) intégré dans un réseau de distribution d'énergie. A cet effet, la bobine de déclenchement de l'aimant de déclenchement (11) est soumise à une impulsion de courant avant un déclenchement pronostiqué, la durée de l'impulsion étant inférieure à la durée nécessaire à un déclenchement souhaité.
PCT/DE2000/003714 1999-10-29 2000-10-17 Procede de controle du fonctionnement d'un composant d'un appareil electrique WO2001033686A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00984849A EP1293022A2 (fr) 1999-10-29 2000-10-17 Procede de controle du fonctionnement d'un composant d'un appareil electrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19954037.3 1999-10-29
DE1999154037 DE19954037A1 (de) 1999-10-29 1999-10-29 Verfahren zum Überwachen der Funktionsfähigkeit eines Bauelementes eines elektrischen Gerätes während des Betriebes

Publications (2)

Publication Number Publication Date
WO2001033686A2 true WO2001033686A2 (fr) 2001-05-10
WO2001033686A3 WO2001033686A3 (fr) 2001-10-25

Family

ID=7928535

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003714 WO2001033686A2 (fr) 1999-10-29 2000-10-17 Procede de controle du fonctionnement d'un composant d'un appareil electrique

Country Status (3)

Country Link
EP (1) EP1293022A2 (fr)
DE (1) DE19954037A1 (fr)
WO (1) WO2001033686A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015932A1 (de) * 2004-04-01 2005-10-20 Moeller Gmbh Verfahren und Schaltungsanordnung zum Betreiben eines Magnetantriebes
DE102004054373B4 (de) * 2004-11-10 2007-09-20 Siemens Ag Schaltungsanordnung zur Generierung eines Ansteuersignals
WO2008110540A2 (fr) * 2007-03-12 2008-09-18 Siemens Aktiengesellschaft Interrupteur, notamment interrupteur-sectionneur à fusibles, et dispositif de protection contre les surtensions d'un tel interrupteur
DE102014206360B4 (de) * 2014-04-03 2022-09-08 Siemens Aktiengesellschaft Verfahren zur Prüfung eines Selbsthaltemagneten eines Schalters und Prüfeinrichtung für den Selbsthaltemagneten
DE102014206366B4 (de) 2014-04-03 2022-08-04 Siemens Aktiengesellschaft Verfahren zur Prüfung eines Selbsthaltemagneten eines Schalters und Prüfeinrichtung für den Selbsthaltemagneten
DE102014206367B4 (de) * 2014-04-03 2022-11-10 Siemens Aktiengesellschaft Verfahren zur Prüfung eines Selbsthaltemagneten eines Schalters und Prüfeinrichtung zur Durchführung des Verfahrens
CN106526472A (zh) * 2016-11-18 2017-03-22 国家电网公司 一种断路器综合测试装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924178A (en) * 1974-07-03 1975-12-02 Deutsch Relays Inc Relay tester
WO1996028872A1 (fr) * 1995-03-16 1996-09-19 Schneider Electric S.A. Appareil electrique de protection differentielle a circuit test
DE19619629C1 (de) * 1996-05-15 1997-10-09 Aeg Sensorsysteme Gmbh Verfahren und Anordnung zur automatischen Überwachung von Fehlerstromschutzschaltern

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2002686A1 (de) * 1969-07-30 1971-02-04 Inst Prueffeld Fuer Elek Sche Verfahren und Vorrichtung zur Pruefung des Gasdruckes in Vakuumschaltkammern
DE2755645B2 (de) * 1977-12-14 1980-02-07 Schutzapparate-Gesellschaft Paris + Co Mbh Kg, 5885 Schalksmuehle Elektromagnetischer Auslöser, insbesondere Haltemagnetauslöser für Fehlerstromschutzschalter
DE3021867A1 (de) * 1980-06-11 1981-12-17 Brown, Boveri & Cie Ag, 6800 Mannheim Selbstschalter
DE3643672A1 (de) * 1986-12-20 1988-06-30 Bbc Brown Boveri & Cie Verfahren zum pruefen der vakuumschaltkammer eines vakuumschalters und einrichtung zur durchfuehrung des verfahrens
DE4111918C1 (en) * 1991-04-12 1992-10-01 Pierburg Gmbh Electronic controller for vehicle IC engine - uses interrupt routine in microprocessor to monitor faults in equipment and initiate emergency processes
DE9115607U1 (fr) * 1991-12-17 1992-02-13 Abb Patent Gmbh, 6800 Mannheim, De
DE19526393C2 (de) * 1995-07-19 1998-11-19 Siemens Ag Verfahren zum Vakuumnachweis in betriebsmäßig eingebauten Vakuumschaltröhren
DE19539535A1 (de) * 1995-10-24 1997-04-30 Siemens Ag Verfahren zur Drucküberwachung einer Vakuumschaltröhre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924178A (en) * 1974-07-03 1975-12-02 Deutsch Relays Inc Relay tester
WO1996028872A1 (fr) * 1995-03-16 1996-09-19 Schneider Electric S.A. Appareil electrique de protection differentielle a circuit test
DE19619629C1 (de) * 1996-05-15 1997-10-09 Aeg Sensorsysteme Gmbh Verfahren und Anordnung zur automatischen Überwachung von Fehlerstromschutzschaltern

Also Published As

Publication number Publication date
DE19954037A1 (de) 2001-05-03
WO2001033686A3 (fr) 2001-10-25
EP1293022A2 (fr) 2003-03-19

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