WO2014187952A1 - Commutateur de protection contre les courants de fuite - Google Patents

Commutateur de protection contre les courants de fuite Download PDF

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Publication number
WO2014187952A1
WO2014187952A1 PCT/EP2014/060654 EP2014060654W WO2014187952A1 WO 2014187952 A1 WO2014187952 A1 WO 2014187952A1 EP 2014060654 W EP2014060654 W EP 2014060654W WO 2014187952 A1 WO2014187952 A1 WO 2014187952A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
residual current
current circuit
mains voltage
circuit connection
Prior art date
Application number
PCT/EP2014/060654
Other languages
German (de)
English (en)
Inventor
Georg Ritzinger
Original Assignee
Eaton Industries (Austria) 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 Eaton Industries (Austria) Gmbh filed Critical Eaton Industries (Austria) Gmbh
Publication of WO2014187952A1 publication Critical patent/WO2014187952A1/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
    • H02H3/26—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 responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—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 responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • 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
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device

Definitions

  • the invention relates to a fault current protection switch according to the preamble of claim 1.
  • the object of the invention is therefore to provide a fault current protection switch of the type mentioned, with which the mentioned disadvantages can be avoided, with which the same secure function can be supported, and a failure due to overvoltages can be avoided.
  • the single FIGURE shows a residual current circuit breaker 1 with a
  • Summation current transformer 2 which primary windings 3 and a secondary winding 4, wherein the secondary winding 4 is connected by means of a first circuit connection 24 with a mains voltage-independent tripping electronics 5, wherein in the first circuit connection 24 a
  • Overvoltage protection device 25 comprising a crowbar circuit is arranged.
  • the subject residual current circuit breaker 1 has a summation current transformer 2, which has a core, in particular a toroidal core. This core has an opening through which the primary windings 3 are guided.
  • the term primary winding 3 also includes that the respective conductors, each of which opens into connection terminals of the residual current circuit breaker 1, are merely passed through the opening, without embracing the cross section of the core. It is envisaged to the respective terminals of the residual current circuit breaker 1, the power line, such as a neutral conductor and an outer conductor to connect, with three-pole or four-pole versions of the subject
  • Residual current circuit breaker 1 may be provided.
  • a tertiary winding 6 are arranged, which are typically wound around the cross section of the core.
  • the subject residual current circuit breaker 1 has a mains voltage independent tripping electronics 5 and preferably further a mains voltage dependent
  • the mains voltage-independent tripping electronics 5 is by means of a first
  • mains voltage-independent tripping electronics 5 are executed, in particular the training selbiger comprising an energy storage circuit and a downstream of this comparator circuit is provided.
  • the line voltage-dependent tripping electronics 7 provided according to the preferred embodiment are connected or contacted with the tertiary winding 6 by means of a second circuit connection 26.
  • the mains voltage-dependent tripping electronics 7 preferably has a digital
  • Signal processing unit which is designed for example as a microcomputer or microcontroller.
  • a first switch 17, and in the second circuit connection 26, a second switch 16, which are part or switching sections of a photo MOS relay 10 are arranged.
  • the second switch 16 which is arranged in the second circuit connection between the tertiary winding 6 and the mains voltage-dependent tripping electronics 7, is designed as a so-called NO contact, and the first switch 17, which in the first circuit connection 24 between the secondary winding 4 and the mains voltage independent Tripping electronics 5 is arranged, is designed as a so-called.
  • Opener means that the photo-MOS relay 10 in question closes or closes the respective second switch 16 when it is actuated and only during such activation, and if the corresponding activation is not effected, the relevant second switch 16 does not is closed, and therefore no conductive connection via this second switch 16th consists.
  • the second switch 16 is driven by a high-time signal lasting for a long time.
  • NC contact must be interpreted accordingly.
  • mains voltage-dependent tripping electronics 7 is actuated, if this works as intended. As soon as there is a different function of the
  • mains voltage-dependent tripping electronics 7 comes, this no longer controls the intended manner, the photo-MOS relay 10, and the mains voltage-dependent tripping electronics 7 is separated from the tertiary winding 6 and the
  • mains voltage-independent tripping electronics 5 is contacted with the secondary winding 4.
  • the use of a photo MOS relay 10 has the advantage of a galvanic isolation of the individual circuits, whereby the proper functioning of the different circuits of the residual current circuit breaker 1 is advantageously supported.
  • the secondary winding 4 is for controlling the mains voltage independent
  • Tripping electronics 5 provided, and therefore generally has a much higher number of turns than the tertiary winding 6.
  • Typical values for the number of turns of the tertiary winding 6 are about 20 to 30 turns around the core of the
  • Summation current transformer 2 whereas the secondary winding 4 typically between 1000 and 1500 turns around the core of the summation current transformer 2 has. Due to the high number of turns of the secondary winding 4 occurs when high currents on the primary conductors 3 to high currents or voltages, especially in the secondary winding. 4
  • Overvoltage protection device 25 comprising a crowbar circuit is arranged.
  • the crowbar circuit has a Zener diode, whereby a very precise with respect to the switching voltage protection against
  • Overvoltage protection device 25 advantageous because the possibly occurring in the secondary winding 4 and managed by the error current protection switch 1 voltages close to that of a photo MOS relay 10 manageable
  • Overvoltage protection device 25 a safe operation of the photo-MOS relay 10 can be achieved, while ensuring that the
  • Overvoltage protection device 25 does not turn on at too low voltages, and this short-circuits on the mains voltage independent tripping electronics 5 over.
  • the overvoltage protection device 25 is designed as a sidactor 27, whereby a simple implementation and a simple structure are ensured. It can also be provided, the
  • Overvoltage protection device 25 form as TRISIL or TISP.
  • the subject residual current circuit breaker 1 also preferably has other components, not shown, such as a trip relay or a power supply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un commutateur (1) de protection contre les courants de fuite comportant un transformateur de courant totalisateur (2) présentant des enroulements primaires (3) ainsi qu'un enroulement secondaire (4) connecté par une première connexion de circuit (24) à une électronique de déclenchement (5) indépendante de la tension réseau. Selon l'invention, un dispositif (25) de protection contre les surtensions comportant un circuit crow-bar est agencé dans la première connexion de circuit (24).
PCT/EP2014/060654 2013-05-23 2014-05-23 Commutateur de protection contre les courants de fuite WO2014187952A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE102013105312.2 2013-05-23
DE102013105312.2A DE102013105312A1 (de) 2013-05-23 2013-05-23 Fehlerstromschutzschalter

Publications (1)

Publication Number Publication Date
WO2014187952A1 true WO2014187952A1 (fr) 2014-11-27

Family

ID=50771509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/060654 WO2014187952A1 (fr) 2013-05-23 2014-05-23 Commutateur de protection contre les courants de fuite

Country Status (2)

Country Link
DE (1) DE102013105312A1 (fr)
WO (1) WO2014187952A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112134254A (zh) * 2020-09-17 2020-12-25 许继电源有限公司 支持热插拔防开路采样保护回路、方法及谐波补偿装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702445A1 (fr) * 1994-09-14 1996-03-20 Siemens Aktiengesellschaft Disjoncteur de protection à courants de défaut avec circuit de stockage d'énergie
WO2007121492A1 (fr) * 2006-04-20 2007-11-01 Moeller Gebäudeautomation GmbH Dispositif de commutation
DE102011011983A1 (de) * 2011-02-22 2012-08-23 Doepke Schaltgeräte GmbH Fehlerstrom-Schutzeinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735412A1 (de) * 1997-08-14 1999-02-18 Siemens Ag Fehlerstrom-Schutzeinrichtung
DE19940344A1 (de) * 1999-08-25 2001-03-01 Siemens Ag Schutzeinrichtung, insbesondere Fehlerstrom-Schutzeinrichtung
DE19940343A1 (de) * 1999-08-25 2001-03-01 Siemens Ag Fehlerstrom-Schutzeinrichtung
DE50312885D1 (de) * 2003-05-15 2010-08-26 Siemens Ag Allstromsensitive Fehlerstrom-Schutzeinrichtung
EP2445074B1 (fr) * 2010-10-22 2017-03-29 Shakira Limited Dispositif de détection de défaillances pour installation et équipements électriques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702445A1 (fr) * 1994-09-14 1996-03-20 Siemens Aktiengesellschaft Disjoncteur de protection à courants de défaut avec circuit de stockage d'énergie
WO2007121492A1 (fr) * 2006-04-20 2007-11-01 Moeller Gebäudeautomation GmbH Dispositif de commutation
DE102011011983A1 (de) * 2011-02-22 2012-08-23 Doepke Schaltgeräte GmbH Fehlerstrom-Schutzeinrichtung

Also Published As

Publication number Publication date
DE102013105312A1 (de) 2014-11-27

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