EP1328955A1 - Low-voltage power breaker with a rating plug - Google Patents

Low-voltage power breaker with a rating plug

Info

Publication number
EP1328955A1
EP1328955A1 EP01988940A EP01988940A EP1328955A1 EP 1328955 A1 EP1328955 A1 EP 1328955A1 EP 01988940 A EP01988940 A EP 01988940A EP 01988940 A EP01988940 A EP 01988940A EP 1328955 A1 EP1328955 A1 EP 1328955A1
Authority
EP
European Patent Office
Prior art keywords
low
rated current
circuit breaker
plug
voltage 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.)
Granted
Application number
EP01988940A
Other languages
German (de)
French (fr)
Other versions
EP1328955B1 (en
Inventor
Holger Hochgraef
Jeffery-C. Mizener
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.)
Siemens AG
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 EP1328955A1 publication Critical patent/EP1328955A1/en
Application granted granted Critical
Publication of EP1328955B1 publication Critical patent/EP1328955B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/042—Application rejection, i.e. preventing improper installation of parts
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7409—Interchangeable elements

Definitions

  • the invention relates to a low-voltage circuit breaker with a rated current plug, by means of which the electronic trip unit of the circuit breaker can be adapted to the conditions of its place of use. If an unsuitable rated current plug is used, the evaluation device of the trip unit adjusts to minimum setting values and by means of a signaling device a message is issued.
  • Circuit breakers in the low voltage range should be in the widest possible nominal current range, e.g. B. 200 A to 6300 A, can be used. Your rated current should therefore be selectable. With the setting of a certain rated current, the respective overcurrent release is parameterized to a selected nominal current. The overcurrent release can thus have the same design for the entire nominal current range.
  • Such a rated current plug is known, for example, from US Pat. No. 4,649,455. If the rated current plug is removed from the switch according to this solution, e.g. B. to him against a rated current plug with changed setting values the tripping unit automatically sets itself to a minimum tripping value until a rated current plug has been inserted again. In the simplest case, this is achieved in that a setting resistor, which is electrically connected in parallel to the setting resistors in the rated current plug, is fixed in the tripping unit and determines the rated current when the rated current plug is removed.
  • the object of the invention is to further increase the safety of circuit breakers with regard to the use and the function of rated current plugs suitable for the circuit breaker and to have to deal with the expense of mechanical coding. According to the invention the object is achieved by the features of claim 1. Appropriate embodiments are the subject of the subclaims.
  • the signaling device is then arranged on the housing of the low-voltage circuit breaker or on the tripping unit.
  • the signaling device can be in the same manner as in DE-A 198
  • 45 825 shown an acoustic and / or optical signal transmitter, for. B. a flashing light emitting diode.
  • a circuit 12 is monitored with a circuit breaker 1, so that in the event of impermissible current values via contacts 2, actuated by a drive device 3, a switch-off takes place.
  • the current in the circuit 12 is measured with a current sensor 4. Its measured value is processed in a tripping unit 5.
  • the trigger unit 5 consists of a microprocessor 6, a reading device 7 and one Evaluation device 8. In the housing of the circuit breaker
  • the rated current plug 9 contains the coding for the rated current and possibly further values, in the simplest case in the form of resistors of a defined size.
  • the values read by the reading device 7 are compared with the permissible values of the circuit breaker 1 concerned. If these are within permissible limits, they are taken over by the trigger unit 5. If, on the other hand, there are no permissible values because, for example, the rated current plug 9 has been removed, the triggering unit 5 emits a pulsating signal to an LED 10. LED 10 then flashes and reports an error condition to the user. At the same time, the setting values of the tripping unit 5 are changed to minimum values. The message and the minimization of the setting values remain effective until a permissible rated current plug is inserted again.
  • a signaling device can also be integrated directly into the tripping unit 5.

Landscapes

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

Abstract

A rating plug may conventionally be provided with an electrical coding such that unsuitable identification of the rating plug is not transmitted to the trigger unit, but rather the attempt to make use of such a rating plug leads to a signal. According to the invention, the signalling unit may be arranged on the housing of the low-voltage power breaker (1), or on the trigger unit (5). Thus, in addition to the conventional solution, the states wrong rating plug, wrong contact connection and defective rating plug may be recorded.

Description

Beschreibungdescription
Niederspannungs-Leistungsschalter mit einem BemessungsstromsteckerLow-voltage circuit breaker with a rated current plug
Die Erfindung betrifft einen Niederspannungs-Leistungs- schalter mit einem Bemessungsstromstecker, mit dem die elektronische Auslöseeinheit des Leistungsschalters auf die Bedingungen seines Einsatzortes anzupassen ist, wobei bei Ver- wendung eines ungeeigneten Bemessungsstromsteckers durch die Auswerteeinrichtung der Auslöseeinheit eine Einstellung auf minimale Einstellwerte und mittels einer Meldeeinrichtung eine Meldung erfolgt .The invention relates to a low-voltage circuit breaker with a rated current plug, by means of which the electronic trip unit of the circuit breaker can be adapted to the conditions of its place of use. If an unsuitable rated current plug is used, the evaluation device of the trip unit adjusts to minimum setting values and by means of a signaling device a message is issued.
Leistungsschalter im Niederspannungsbereich sollen in einem möglichst weiten Nennstrombereich, z. B. 200 A bis 6300 A, einsetzbar sein. Ihr Bemessungsstrom soll deshalb wählbar sein. Mit der Einstellung eines bestimmten BemessungsStromes wird der jeweilige Uberstromausloser auf einen gewählten Nennstrom parametriert. Der Uberstromausloser kann so für den gesamten Nennstrombereich gleich aufgebaut sein.Circuit breakers in the low voltage range should be in the widest possible nominal current range, e.g. B. 200 A to 6300 A, can be used. Your rated current should therefore be selectable. With the setting of a certain rated current, the respective overcurrent release is parameterized to a selected nominal current. The overcurrent release can thus have the same design for the entire nominal current range.
Es ist bekannt, Uberstromausloser mit einem einsteckbaren Bemessungsstromstecker (rating plug) auszurüsten, der z. B. mit Widerständen bestückt ist und mit dem ein oder mehrere Eigenschaftskennwerte des Schalters festgelegt werden. Ohne den Bemessungsstromstecker kann der Schalter dann nicht betrieben werden .It is known to provide an overcurrent release with a plug-in rated current plug (rating plug), which, for. B. is equipped with resistors and with which one or more characteristic properties of the switch are defined. The switch cannot then be operated without the rated current plug.
Ein solcher Bemessungsstromstecker ist beispielsweise aus der US-A 4,649,455 bekannt. Wird der Bemessungsstromstecker nach dieser Lösung aus dem Schalter entnommen, z. B. um ihn gegen einen Bemessungsstromstecker mit veränderten Einstellwerten auszutauschen, so stellt sich die Auslöseeinheit selbsttätig auf einen minimalen Auslösewert ein, bis wieder ein Bemessungsstromstecker eingesetzt wurde. Im einfachsten Fall wird das dadurch erreicht, dass ein Einstellwiderstand, der elek- trisch parallel zu den Einstellwiderständen im Bemessungsstromstecker geschaltet ist, in der Auslöseeinheit fest angeordnet ist und beim Entnehmen des Bemessungsstromsteckers den Bemessungsström bestimmt.Such a rated current plug is known, for example, from US Pat. No. 4,649,455. If the rated current plug is removed from the switch according to this solution, e.g. B. to him against a rated current plug with changed setting values the tripping unit automatically sets itself to a minimum tripping value until a rated current plug has been inserted again. In the simplest case, this is achieved in that a setting resistor, which is electrically connected in parallel to the setting resistors in the rated current plug, is fixed in the tripping unit and determines the rated current when the rated current plug is removed.
Um das Einsetzen ungeeigneter Bemessungsstromstecker, die einen Bemessungsstrom außerhalb der Bemessungsgrenzen des Leistungsschalters einstellen würden, zu verhindern, ist es z. B. aus der US-A 5,027,091 bekannt, die Bemessungsstromstecker durch Formschluss mechanisch zu kodieren.To prevent the use of unsuitable rated current plugs that would set a rated current outside the rated limits of the circuit breaker, it is e.g. B. from US-A 5,027,091 known to mechanically code the rated current plug by positive locking.
Mit der DE-A 198 45 825 ist auch eine Lösung bekannt, nach der eine elektrische Kodierung verwendet wird, so dass ungeeignete Kennwerte des Bemessungsstromsteckers nicht zu deren Übertragung in die Auslöseeinheit führen, sondern dass bei dem Versuch, einen solchen Bemessungsstromstecker zu verwenden, eine Meldung erfolgt. Die Meldeeinrichtung soll am Bemessungsstromstecker angeordnet sein. Eine Fehlermeldung erfolgt so nur, wenn der Bemessungsstromstecker eingesteckt ist. Fehler wie fehlende Kontaktverbindung zwischen Bemes- sungsstromstecker und Auslöseeinheit oder ein grundsätzlich fehlender Bemessungsstromstecker können auf diese Weise nicht angezeigt werden.With DE-A 198 45 825 a solution is also known, according to which an electrical coding is used, so that unsuitable characteristic values of the rated current plug do not lead to their transmission into the tripping unit, but that when trying to use such a rated current plug, one Message is issued. The signaling device should be arranged on the rated current plug. An error message will only appear if the rated current plug is inserted. Errors such as a missing contact connection between the rated current plug and the tripping unit or a fundamentally missing rated current plug cannot be displayed in this way.
Der Erfindung liegt die Aufgabe zugrunde, die Sicherheit von Leistungsschaltern bezüglich der Verwendung und der Funktion für den Leistungsschalter geeigneter Bemessungsstromstecker weiter zu erhöhen und den Aufwand einer mechanischen Kodierung eingehen zu müssen. Erfindungsgemäß wird die Aufgabe gelöst durch die Merkmale des Anspruchs 1. Zweckmäßige Ausgestaltungen sind Gegenstand der Unteransprüche .The object of the invention is to further increase the safety of circuit breakers with regard to the use and the function of rated current plugs suitable for the circuit breaker and to have to deal with the expense of mechanical coding. According to the invention the object is achieved by the features of claim 1. Appropriate embodiments are the subject of the subclaims.
Danach ist die Meldeeinrichtung am Gehäuse des Niederspan- nungs-Leistungsschalters oder an der Auslöseeinheit angeordnet .The signaling device is then arranged on the housing of the low-voltage circuit breaker or on the tripping unit.
Die Meldeeinrichtung kann in eben der Weise wie in DE-A 198The signaling device can be in the same manner as in DE-A 198
45 825 dargestellt ein akustischer und/oder optischer Signalgeber, z. B. eine blinkende lichtemittierende Diode, sein.45 825 shown an acoustic and / or optical signal transmitter, for. B. a flashing light emitting diode.
Solange an den Eingangsleitungen der Steckverbindung zum Be- messungsstromstecker keine für den betreffenden Leistungsschalter geeigneten Bemessungswerte anliegen, wird durch die Auswerteeinrichtung der Auslöseeinheit ein Signal auf die Meldeeinrichtung geschaltet. Damit werden zusätzlich auch die Zustände „fehlender Bemessungsstromstecker", „fehlende Kon- taktVerbindung" , „defekter Bemessungsstromstecker" erfasst.As long as there are no rated values suitable for the circuit breaker concerned on the input lines of the plug connection to the rated current plug, a signal is switched to the signaling device by the evaluation device of the tripping unit. In this way, the states "missing rated current plug", "missing contact connection", "defective rated current plug" are also recorded.
Die Erfindung soll nachstehend anhand eines Ausführungsbei- spiels näher erläutert werden. Die zugehörige Zeichnung zeigt einen Niederspannungs-Leistungsschalter mit zugehöriger Aus- löseeinheit und einem Bemessungsstromstecker.The invention will be explained in more detail below on the basis of an exemplary embodiment. The accompanying drawing shows a low-voltage circuit breaker with associated trip unit and a rated current plug.
Mit einem Leistungsschalter 1 wird ein Stromkreis 12 überwacht, so dass bei unzulässigen Stromwerten über Kontakte 2, betätigt durch eine Antriebsvorrichtung 3, eine Ausschaltung erfolgt. Gemessen wird der Strom in dem Stromkreis 12 mit einem Stromsensor 4. Dessen gemessener Wert wird in einer Auslöseeinheit 5 verarbeitet. Die Auslöseeinheit 5 besteht aus einem Mikroprozessor 6, einer Leseeinrichtung 7 und einer Auswerteeinrichtung 8. In das Gehäuse des LeistungsschaltersA circuit 12 is monitored with a circuit breaker 1, so that in the event of impermissible current values via contacts 2, actuated by a drive device 3, a switch-off takes place. The current in the circuit 12 is measured with a current sensor 4. Its measured value is processed in a tripping unit 5. The trigger unit 5 consists of a microprocessor 6, a reading device 7 and one Evaluation device 8. In the housing of the circuit breaker
I einsteckbar und dann mit der Auslöseeinheit 5 über KontakteI insertable and then with the release unit 5 via contacts
II verbunden ist ein Bemessungsstromstecker 9. Der Bemessungsstromstecker 9 enthält die Kodierung für den Bemessunge - ström und gegebenenfalls weitere Werte, im einfachsten Fall in Form von Widerständen definierter Größe.II is connected to a rated current plug 9. The rated current plug 9 contains the coding for the rated current and possibly further values, in the simplest case in the form of resistors of a defined size.
In der Auswerteeinrichtung 8 werden die durch die Leseeinrichtung 7 eingelesenen Werte mit den zulässigen Werten des betroffenen Leistungsschalters 1 verglichen. Liegen diese innerhalb zulässiger Grenzen, so werden sie von der Auslöseeinheit 5 übernommen. Liegen hingegen keine zulässigen Werte vor, weil beispielsweise der Bemessungsstromstecker 9 entnommen wurde, so wird von der Auslöseeinheit 5 ein pulsierendes Signal an eine LED 10 gegeben. Die LED 10 blinkt daraufhin und meldet dem Nutzer einen Fehlerzustand. Gleichzeitig werden die Einstellwerte der Auslöseeinheit 5 auf minimale Werte geändert. Die Meldung und die Minimierung der Einstellwerte bleiben so lange wirksam, bis wieder ein zulässiger Bemes- sungsstromstecker eingesteckt wurde.In the evaluation device 8, the values read by the reading device 7 are compared with the permissible values of the circuit breaker 1 concerned. If these are within permissible limits, they are taken over by the trigger unit 5. If, on the other hand, there are no permissible values because, for example, the rated current plug 9 has been removed, the triggering unit 5 emits a pulsating signal to an LED 10. LED 10 then flashes and reports an error condition to the user. At the same time, the setting values of the tripping unit 5 are changed to minimum values. The message and the minimization of the setting values remain effective until a permissible rated current plug is inserted again.
Statt am Gehäuse des Leistungsschalters 1 angeordnet, kann eine Meldeeinrichtung auch unmittelbar in die Auslöseeinheit 5 integriert sein. Instead of being arranged on the housing of the circuit breaker 1, a signaling device can also be integrated directly into the tripping unit 5.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 LeistungsSchalter1 circuit breaker
2 Kontakte2 contacts
3 Antriebsvorrichtung3 drive device
Stromsensorcurrent sensor
Auslöseeinheittrip unit
Mikroprozessormicroprocessor
Leseeinrichtungreader
Auswerteeinrichtungevaluation
Bemessungsstromstecker 0 LED 1 Kontakte 2 Stromkreis Rated current plug 0 LED 1 contacts 2 circuit

Claims

Patentansprüche claims
1. Niederspannungs-Leistungsschalter (1) mit einem Bemessungsstromstecker (9) , mit dem die elektronische Auslöseein- heit (5) des Leistungsschalters (1) auf die Bedingungen seines Einsatzortes anzupassen ist, wobei bei Verwendung eines ungeeigneten Bemessungsstromsteckers (9) durch die Auswerteeinrichtung (8) der Auslöseeinheit (5) eine Einstellung auf minimale Einstellwerte und mittels einer Meldeeinrichtung ei- ne Meldung erfolgt, d a d u r c h g e k e n n z e i c h n e t , dass die Meldeeinrichtung am Gehäuse des Niederspannungs-Leistungs- schalters (1) oder an der Auslöseeinheit (5) angeordnet ist.1. Low-voltage circuit breaker (1) with a rated current plug (9), with which the electronic tripping unit (5) of the circuit breaker (1) can be adapted to the conditions of its place of use, with the evaluation device using an unsuitable rated current plug (9) (8) the tripping unit (5) is set to minimum setting values and a message is sent by means of a signaling device, characterized in that the signaling device is arranged on the housing of the low-voltage circuit breaker (1) or on the triggering unit (5).
2. Niederspannungs-Leistungsschalter (1) nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass die Meldeeinrichtung ein akustischer und/oder optischer Signalgeber ist.2. Low-voltage circuit breaker (1) according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the signaling device is an acoustic and / or optical signal generator.
3. Niederspannungs-Leistungsschalter nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , dass die Meldeeinrichtung eine blinkende lichtemittierende Diode (10) ist .3. Low-voltage circuit breaker according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t that the signaling device is a flashing light-emitting diode (10).
4. Niederspannungs-Leistungsschalter. nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , dass bei Nichtvorliegen für den betreffenden Niederspannungs-Leistungsschalter (1) geeigneter Einstellwerte an den Eingangs- leitungen der Steckverbindung zum Bemessungsstromstecker (9) durch die Auswerteeinrichtung (8) der Auslöseeinheit (5) ein Signal zur Betätigung der Meldeeinrichtung geschaltet ist. 4. Low voltage circuit breakers. according to one of claims 1 to 3, characterized in that in the absence of suitable setting values for the relevant low-voltage circuit breaker (1) on the input lines of the plug connection to the rated current plug (9) by the evaluation device (8) of the tripping unit (5) a signal for Actuation of the signaling device is switched.
EP01988940A 2000-10-26 2001-10-19 Low-voltage power breaker with a rating plug Expired - Lifetime EP1328955B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10054436A DE10054436A1 (en) 2000-10-26 2000-10-26 Low-voltage circuit breaker with a rated current plug
DE10054436 2000-10-26
PCT/DE2001/004038 WO2002035569A1 (en) 2000-10-26 2001-10-19 Low-voltage power breaker with a rating plug

Publications (2)

Publication Number Publication Date
EP1328955A1 true EP1328955A1 (en) 2003-07-23
EP1328955B1 EP1328955B1 (en) 2007-05-09

Family

ID=7661988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01988940A Expired - Lifetime EP1328955B1 (en) 2000-10-26 2001-10-19 Low-voltage power breaker with a rating plug

Country Status (5)

Country Link
US (1) US7092228B1 (en)
EP (1) EP1328955B1 (en)
JP (1) JP3927493B2 (en)
DE (2) DE10054436A1 (en)
WO (1) WO2002035569A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017771B4 (en) * 2005-04-13 2017-10-26 Siemens Aktiengesellschaft Method of manufacturing a low-voltage circuit breaker with self-monitoring functions
US7936547B2 (en) * 2006-12-29 2011-05-03 General Electric Company Circuit breaker electronic trip unit personality module
US20080158761A1 (en) * 2006-12-29 2008-07-03 Geoff Butland Circuit breaker electronic trip unit personality module
JP6418485B2 (en) * 2014-07-14 2018-11-07 パナソニックＩｐマネジメント株式会社 Switch device

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US4335413A (en) * 1980-04-15 1982-06-15 Westinghouse Electric Corp. Circuit interrupter with remote indicator and power supply
US4649455A (en) * 1986-04-28 1987-03-10 General Electric Company Rating plug for molded case circuit breaker
US4788620A (en) * 1987-11-09 1988-11-29 General Electric Company Static trip circuit breaker with automatic circuit trimming
JPH0223021A (en) * 1988-07-08 1990-01-25 Mitsubishi Electric Corp Circuitbreaker
US5027091A (en) 1989-02-15 1991-06-25 General Electric Company Molded case circuit interrupter rating plug keying and interlock arrangement
US5136457A (en) 1989-08-31 1992-08-04 Square D Company Processor controlled circuit breaker trip system having an intelligent rating plug
US5204798A (en) * 1991-07-22 1993-04-20 General Electric Company Metering accessory for molded case circuit breakers
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Also Published As

Publication number Publication date
EP1328955B1 (en) 2007-05-09
DE10054436A1 (en) 2002-05-08
JP3927493B2 (en) 2007-06-06
JP2004512646A (en) 2004-04-22
WO2002035569A1 (en) 2002-05-02
DE50112491D1 (en) 2007-06-21
US7092228B1 (en) 2006-08-15

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