[go: up one dir, main page]

DE10116172A1 - Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit - Google Patents

Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit

Info

Publication number
DE10116172A1
DE10116172A1 DE2001116172 DE10116172A DE10116172A1 DE 10116172 A1 DE10116172 A1 DE 10116172A1 DE 2001116172 DE2001116172 DE 2001116172 DE 10116172 A DE10116172 A DE 10116172A DE 10116172 A1 DE10116172 A1 DE 10116172A1
Authority
DE
Germany
Prior art keywords
series circuit
varistor
thermal fuse
parallel
overvoltage protection
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Withdrawn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
DE2001116172
Other languages
German (de)
Inventor
Klaus P Dreikorn
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.)
3 K ELEK K VERTRIEBS GmbH
Original Assignee
3 K ELEK K VERTRIEBS GmbH
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 3 K ELEK K VERTRIEBS GmbH filed Critical 3 K ELEK K VERTRIEBS GmbH
Priority to DE2001116172 priority Critical patent/DE10116172A1/en
Publication of DE10116172A1 publication Critical patent/DE10116172A1/en
Withdrawn legal-status Critical Current

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
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

The overvoltage protection arrangement has a series circuit with a thermal fuse (T1) and a varistor (V1) connecting two current conductors (L1,N1) carrying a voltage, with a second similar series circuit (T2,V2) connected in parallel with the first series circuit. The two thermal fuses are designed with different triggering temperature values.

Description

Die Erfindung betrifft einen Überspannungsschutz mit einer zwei Spannung führende Stromleiter verbindenden Reihenschaltung aus Thermosicherung und Varistor.The invention relates to a surge protection with a connecting two live conductors Series connection of thermal fuse and varistor.

Bei einer solchen Schutzschaltung ist gemäß geltenden Vorschriften der Varistor durch eine Thermosicherung vor Überhitzung zu schützen.With such a protective circuit is in accordance with Prescribe the varistor with a thermal fuse To protect overheating.

Aus der europäischen Patentanmeldung 0 651 491 A1 ist ein Überspannungsbegrenzer der oben genannten Art bekannt. From European patent application 0 651 491 A1 is a Surge limiter of the type mentioned above.  

Um auch nach dem Ansprechen der Thermosicherung eine gewisse Schutzfunktion aufrechtzuerhalten, wird in der bekannten Schutzschaltung parallel zu der Thermosicherung die in der Veröffentlichung als Abtrennvorrichtung bezeichnet wird, ein Gasentladungsableiter angeordnet. Ein Leckstrom des Varistors ist nach dem Ansprechen der Thermosicherung unterbrochen. Allerdings muss nach diesem Ansprechen der Überspannungsbegrenzer den Vorschriften entsprechend alsbald ausgetauscht werden.To ensure a certain amount even after the thermal fuse has tripped Maintaining protective function is known in the Protection circuit parallel to the thermal fuse in the Publication is referred to as a separator Gas discharge arrester arranged. A leakage current from the varistor is interrupted after the thermal fuse has tripped. However, after this response the Surge suppressors will soon comply with the regulations be replaced.

Die Aufrechterhaltung des o. g. vorschriftsmäßigen Zustandes erfordert danach eine regelmäßige Kontrolle des Überspannungsbegrenzers.The maintenance of the above proper condition then requires regular inspection of the Limiter.

Die Aufgabe der Erfindung besteht in der Verminderung dieses Kontrollaufwandes.The object of the invention is to reduce this Control expenses.

Gelöst wird diese Aufgabe in Übereinstimmung mit der Erfindung durch die im Patentanspruch 1 genannte Maßnahme, die eine Fortsetzung des vorschriftsmäßigen Betriebes gestattet. Außerdem lässt sich der Lagerbestand für Reparaturzwecke vermindern.This object is achieved in accordance with the invention by the measure mentioned in claim 1, the one Continuation of proper operation permitted. The inventory can also be used for repair purposes Reduce.

Bei einer solchen Art eines Überspannungsschutzes kann gemäß einer Weiterbildung nach Patentanspruch 2 eine zusätzliche Flexibilisierung der Betriebsparameter erreicht werden. With such a type of surge protection, according to a further development according to claim 2 an additional Flexibility of the operating parameters can be achieved.  

Bei einer Weiterbildung der Erfindung gemäß Patentanspruch 3 ergeben sich die gleichen Vorteile für Längs- und Querspannungsschutz.In a development of the invention according to claim 3 there are the same advantages for longitudinal and Transverse voltage protection.

Nachstehend wird die Erfindung anhand der in den Fig. 1 und 2 gezeigten Ausführungsbeispielen erläutert.The invention is explained below on the basis of the exemplary embodiments shown in FIGS. 1 and 2.

In Fig. 1 sind die beiden spannungsführenden Leiter L1 und N1 dargestellt, an die ein zu schützender Verbraucher anschließbar ist. Zwischen beiden Leitern L1 und N1 ist eine Parallelschaltung aus zwei Reihenschaltungen angeordnet. Jede dieser Reihenschaltungen besteht je aus einer Thermosicherung T1 bzw. T2 und je aus einem Varistor V1 bzw. V2.In Fig. 1, the two live conductors are illustrated L1 and N1, to which a consumer to be protected is connected. A parallel connection consisting of two series connections is arranged between the two conductors L1 and N1. Each of these series connections consists of a thermal fuse T1 or T2 and a varistor V1 or V2.

Bei Überschreitung einer vorbestimmten Temperatur tl wird die Thermosicherung T1 aktiviert und trennt den Stromkreis des Varistors V1 auf. Der Überspannungsschutz wird nunmehr allein durch die parallel geschaltete Reihenschaltung aus Thermosicherung T2 und Varistor V2 aufrechterhalten, wobei, abhängig von den gewollten Betriebsbedingungen, die Ansprechtemperaturen der Thermosicherungen auch unterschiedlich gewählt werden können.If a predetermined temperature tl is exceeded, the Thermal fuse T1 activates and disconnects the circuit of the Varistors V1 on. The surge protection is now alone through the parallel connection in series Maintain thermal fuse T2 and varistor V2, whereby, depending on the desired operating conditions Response temperatures of the thermal fuses too can be chosen differently.

Durch entsprechende Kontaktgestaltung der ersten Thermosicherung T1 mit z. B. einem Umschalter, könnte die Schaltung auch so ausgestaltet werden, dass die zweite Reihenschaltung mit der Thermosicherung T2 und dem Varistor V2 nicht fest verdrahtet parallel zur ersten Reihenschaltung angeschlossen ist, sondern erst beim Ansprechen der Thermosicherung T1 aktiviert wird.By designing the first contact accordingly Thermal fuse T1 with z. B. a switch, could Circuit can also be designed so that the second Series connection with the thermal fuse T2 and the varistor V2  not hardwired in parallel to the first series connection is connected, but only when the Thermal fuse T1 is activated.

Im Fig. 2 ist eine auf Längs- und Querspannungsschutz ergänzte Schaltungsanordnung dargestellt. In Reihe vom Leiter L1 aus mit den zueinander parallel geschalteten Thermosicherungen T1 und Varistoren V1 einerseits und T2 und V2 andererseits ist zum Leiter N1 ein weiterer Varistor V3 geschaltet. Am Verbindungspunkt PV zwischen den parallelen Varistoren V1 und V2 und dem dritten Varistor V3 ist ein Gasableiter GA angeschlossen, dessen zweiter Anschluss an den Schutzleiter PE geführt ist.A circuit arrangement supplemented with longitudinal and transverse voltage protection is shown in FIG. 2. A further varistor V3 is connected to the conductor N1 in series from the conductor L1 with the thermal fuses T1 and varistors V1 on the one hand and T2 and V2 on the other hand. At the connection point PV between the parallel varistors V1 and V2 and the third varistor V3, a gas arrester GA is connected, the second connection of which is led to the protective conductor PE.

Claims (3)

1. Überspannungsschutz mit einer zwei Spannung führende Stromleiter (L1; N1) verbindenden Reihenschaltung aus Thermosicherung und Varistor, dadurch gekennzeichnet, dass dieser Reihenschaltung (T1; V1) eine zweite, gleichartige Reihenschaltung (T2; V2) parallel geschaltet ist.1. Overvoltage protection with a two-phase current conductor (L1; N1) connecting series circuit comprising thermal fuse and varistor, characterized in that this series circuit (T1; V1) is connected in parallel with a second, similar series circuit (T2; V2). 2. Überspannungsschutz nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Thermosicherungen (T1; T2) mit unterschiedlichen Auslösetemperaturwerten ausgelegt sind.2. Surge protection according to claim 1, characterized characterized in that the two thermal fuses (T1; T2) with different trigger temperature values are designed. 3. Überspannungsschutz nach Anspruch 1 oder 2 für Längs- und Querspannungsschutz, bei dem die zwischen zwei Spannung führenden Stromleitern (L1; N1) angeordnete erste Reihenschaltung aus Thermosicherung (T1) und Varistor (V1) um einen Varistor (V3) ergänzt ist, bei dem der Verbindungspunkt (PV) zwischen der Reihenschaltung aus Thermosicherung (T1) und Varistor (V1) und dem weiteren Varistor (V3) über einen Gasableiter (GA) mit einem Schutzleiter (PE) verbunden ist, dadurch gekennzeichnet, dass parallel zur ersten Reihenschaltung aus Thermosicherung (T1) und Varistor (V1) eine zweite, gleichartige Reihenschaltung aus Thermosicherung (T2) und Varistor (V2) an den Verbindungspunkt (PV) geschaltet ist.3. Surge protection according to claim 1 or 2 for longitudinal and Cross-voltage protection, in which the between two voltage leading current conductors (L1; N1) arranged first Series connection of thermal fuse (T1) and varistor (V1) is supplemented by a varistor (V3), in which the Connection point (PV) between the series connection Thermal fuse (T1) and varistor (V1) and the other Varistor (V3) via a gas arrester (GA) with a Protective conductor (PE) is connected, characterized in that that parallel to the first series connection Thermal fuse (T1) and varistor (V1) a second, Similar series connection of thermal fuse (T2) and  Varistor (V2) connected to the connection point (PV) is.
DE2001116172 2001-03-31 2001-03-31 Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit Withdrawn DE10116172A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2001116172 DE10116172A1 (en) 2001-03-31 2001-03-31 Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2001116172 DE10116172A1 (en) 2001-03-31 2001-03-31 Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit

Publications (1)

Publication Number Publication Date
DE10116172A1 true DE10116172A1 (en) 2002-10-10

Family

ID=7679951

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2001116172 Withdrawn DE10116172A1 (en) 2001-03-31 2001-03-31 Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit

Country Status (1)

Country Link
DE (1) DE10116172A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1708332A1 (en) * 2005-03-31 2006-10-04 Legrand France Electrical protection device against transient overvoltages, and installation using the same
WO2013097590A1 (en) * 2011-12-28 2013-07-04 厦门赛尔特电子有限公司 Full-model overvoltage protection module for alternating current circuit
US20140198424A1 (en) * 2013-01-11 2014-07-17 International Business Machines Corporation Solder assembly temperature monitoring process
WO2015121027A1 (en) * 2014-02-17 2015-08-20 Phoenix Contact Gmbh & Co.Kg Overvoltage protection device with leakage current cutoff

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1708332A1 (en) * 2005-03-31 2006-10-04 Legrand France Electrical protection device against transient overvoltages, and installation using the same
FR2884065A1 (en) * 2005-03-31 2006-10-06 Legrand France ELECTRICAL DEVICE FOR PROTECTION AGAINST TRANSIENT OVERVOLTAGES AND INSTALLATION COMPRISING IT
WO2013097590A1 (en) * 2011-12-28 2013-07-04 厦门赛尔特电子有限公司 Full-model overvoltage protection module for alternating current circuit
US20140198424A1 (en) * 2013-01-11 2014-07-17 International Business Machines Corporation Solder assembly temperature monitoring process
US9714870B2 (en) * 2013-01-11 2017-07-25 International Business Machines Corporation Solder assembly temperature monitoring process
US9733134B2 (en) 2013-01-11 2017-08-15 International Business Machines Corporation Solder assembly temperature monitoring process
WO2015121027A1 (en) * 2014-02-17 2015-08-20 Phoenix Contact Gmbh & Co.Kg Overvoltage protection device with leakage current cutoff
US10230233B2 (en) 2014-02-17 2019-03-12 Phoenix Contact Gmbh & Co. Kg Overvoltage protection device with leakage current cut-off

Similar Documents

Publication Publication Date Title
EP2276136B2 (en) Excess voltage protection for inverter with input EMC filter
EP2418748B1 (en) Energy supply device
EP0690539B1 (en) Protection circuit for telecommunication equipment
DE102011102941B4 (en) Spark gap with several series-connected, in a stack arrangement single spark gaps
EP2984715A1 (en) Arrangement for overload protection for overvoltage protection equipment
EP2568480A2 (en) Overvoltage protection device
EP2649695B1 (en) Surge arrester arrangement having at least one varistor dissipation element
DE3831935A1 (en) Overvoltage protection
DE69737239T2 (en) IMPROVEMENTS FOR THE PROTECTION OF APPARATUS CONNECTED TO AN ENERGY SOURCE AGAINST TEMPORARY OVERVOLTAGE AND LIGHTNING
DE102010038208A1 (en) Overvoltage protection device has overvoltage arrester and positive temperature coefficient thermistor or negative temperature coefficient thermistor for detecting temperature of overvoltage arrester
DE19838776C2 (en) Method and arrangement with a two-stage surge protection in low-voltage systems
DE10116172A1 (en) Overvoltage protection arrangement has series circuit with thermal fuse, varistor connecting two current conductors carrying voltage, similar series circuit in parallel with first series circuit
EP3108559B1 (en) Overvoltage protection device with leakage current cutoff
EP3347959A1 (en) Arrangement for safely removing overvoltage protection devices from the mains, independently of switchgear or backup fuses, in the event of critical operating states
DE102009004758B4 (en) Surge arrester with at least one diverting element
EP3652834B1 (en) Assembly for monitoring the state of surge arresters
DE3033473C2 (en) Safety circuit with a fuse
DE202018006385U1 (en) Surge protection device with thermal overload protection device
EP0966087B1 (en) Overvoltage protection circuit
DE3131630A1 (en) Circuit arrangement for protection of electronic devices which are connected via connecting lines
DE10143277A1 (en) Protection circuit for communication devices
EP2388880A1 (en) Switching assembly for restricting voltage and connection device
DE3515204A1 (en) Arrangement for the protection of electronic devices which are connected via connecting leads
DE956428C (en) Coil protection for fault voltage circuit breaker
AT356744B (en) ARRANGEMENT FOR OVERVOLTAGE PROTECTION OF LOW-VOLTAGE SYSTEMS

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee