EP0008026B1 - Elektrischer Vollschutzschalter - Google Patents

Elektrischer Vollschutzschalter Download PDF

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Publication number
EP0008026B1
EP0008026B1 EP79102570A EP79102570A EP0008026B1 EP 0008026 B1 EP0008026 B1 EP 0008026B1 EP 79102570 A EP79102570 A EP 79102570A EP 79102570 A EP79102570 A EP 79102570A EP 0008026 B1 EP0008026 B1 EP 0008026B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
breaker
protection circuit
full protection
current
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.)
Expired
Application number
EP79102570A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0008026A1 (de
Inventor
Hans Arnhold
Peter Flohr
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Publication of EP0008026A1 publication Critical patent/EP0008026A1/de
Application granted granted Critical
Publication of EP0008026B1 publication Critical patent/EP0008026B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • 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
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
    • 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
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1018—Interconnected mechanisms with only external interconnections
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the invention relates to an electrical circuit breaker with overcurrent, short-circuit and fault current tripping, which is composed of a structural-functional combination of one or more 1-pole circuit breaker (MCB) with a residual current circuit breaker (FI switch), the Switch elements to be combined are each designed in a narrow design and with the same housing contour.
  • MB 1-pole circuit breaker
  • FI switch residual current circuit breaker
  • full circuit breakers serve at the same time to protect the line network to be monitored against short-circuit and overload as well as to prevent electrical accidents due to line defects and the like. and are in their basic concept e.g. already known from DE-PS 1 169 015.
  • the circuit breaker described here requires complex and high-loss internal wiring from the circuit breaker part through the summation current transformer of the FL switch part and back again from there, and consequently cannot be designed to be multi-pole disconnecting.
  • the contact device of the FI switch part must be actuated mechanically by the switch lock of the circuit breaker part.
  • the invention has for its object to develop a fully electric circuit breaker of the type described above, with which a perfect protection of people and things against the hazards that occur in the event of a fault can be achieved in a simple manner and with as little effort as possible.
  • the solution to this problem is to design an electrical full circuit breaker according to the preamble of claim 1 such that the circuit breaker coupled to the circuit breaker or circuit breaker parts has its own contact break point and in its external terminal -. connection area is provided with a freely accessible summation current transformer designed as a push-through transformer.
  • a two-pole circuit breaker with overcurrent, short-circuit and fault current tripping is achieved by the structural and functional combination of a completely normal 1-pole circuit breaker with the RCD according to the invention can be produced, which needs exactly the same space in a distribution system as a 2-pole circuit breaker, but also guarantees additional protection against the occurrence of excessive contact voltages. Accordingly, when assembling two or three circuit breaker parts in connection with the Fl switch according to the invention, a 3 or 4-pole full circuit breaker results in the corresponding installation division units. - Furthermore, by assembling a circuit breaker without thermal and electromagnetic overload protection with the same combination, a "real" residual current circuit breaker is created. - In addition, the full circuit breaker according to the invention can also be equipped with a time-delayed undervoltage release, so that a total of four different protective functions can be performed by one and the same device.
  • the full circuit breaker according to the invention compared to the devices mentioned at the outset is that the summation current transformer required for residual current detection is designed as a push-through converter within the RCD and can therefore be connected from the outside in the course of normal installation. This not only eliminates the previous internal wiring of the circuit breaker and thus the heating of the device resulting from the considerable power loss, but it can also increase the responsiveness of the residual current release in normal installation, depending on the circumstances, by two or repeated looping through the connecting lines can be doubled or multiplied.
  • the full circuit breaker can also be operated without any residual current monitoring. This simple adaptation option not only increases the safety level of the normal circuit breaker, but it also fundamentally reduces in the same way the previous range of types for residual current circuit breakers with nominal residual currents of 15, 30, 100 mA etc.
  • the size of the full circuit breaker according to the invention which corresponds to the width of a 2-pole or multi-pole circuit breaker, offers the advantageous possibility of also protecting the circuits monitored in an existing distribution system against fault currents without taking up additional space and at the same time eliminating the previous fault current circuit breakers existing and / or further circuits independently of one another, ie to be able to monitor more differentiated.
  • the sum of the leakage currents and earth leakage currents to be monitored on the equipment in the full circuit breaker according to the invention is lower than in the conventional installation, where several circuits are routed via a common residual current circuit breaker, which must inevitably lead to false tripping. Accordingly, the full circuit breaker according to the invention offers a high level of operational safety in the same way in addition to its large protection range.
  • the switching and triggering mechanism as well as the electromagnetic triggering element and the switching contact device coupled to it in the circuit breaker and the FI switch are configured and arranged in the same way, which greatly simplifies the manufacture of the two switches.
  • the holding magnetic relay or the amplifier electronics supplied from the AC network for the residual current release are housed here in the FI switch housing.
  • the mains supply of this amplifier electronics takes place in a manner known per se by the formation of a three-phase star connection and via rectifier sections connected downstream.
  • an arrangement for time-delayed undervoltage tripping can also be installed in this area if required.
  • the mechanical connection of the circuit breaker parts to one another and in turn to the FI switch takes place with the aid of a T-shaped pivoting lever, which is movably mounted in the area of the housing wall of the one switch part on the rigid axis of the switching mechanism and with it Cross-bar reaches through the walls of the adjoining switch parts on both sides.
  • This crossbar can be acted upon from each switch part for the purpose of triggering and the effect on the adjacent one by means of a shoulder pin of the tensioning and unlatching levers.
  • the actuating button which is displaceably guided within a housing recess, is held in the rest position by a return spring, which is wound as a leg spring around a shoulder pin and, with its longer leg, the actuating button penetrated within an X-shaped notch at the same time by reaching behind a side housing shoulder adjustable in the housing.
  • the shorter leg of the return spring carries the current from the potential-carrying magnetic yoke of the electromagnetic release element via the auxiliary winding of the push-through converter to the test resistor, the longer leg of the return spring at the same time forming the movable auxiliary contact within the test circuit.
  • the test facility integrates organically into the existing structure of the Fl switch without any particular effort and does not burden it in any way with additional wiring measures and structural details.
  • the essentially contour-matched housings of the circuit breaker parts and the Fl switch on the adjoining sides at the diagonally located screwing points across the bearing journal for the actuating handle and in the area of the lateral connection terminal have correspondingly form-fitting interlocking Ans decisive or recesses, wherein the outer wall of a LS-switch part the covering un g for one side partially open switch Fl takes the same time. Accordingly, the number of switch parts required in each case can be precisely aligned with one another using two screw sleeves to form a ready-to-install full circuit breaker.
  • the 2-pole full circuit breaker is composed of a 1-pole disconnecting circuit breaker 1 and a Fl switch 2 with its own contact interruption point.
  • the circuit breaker 1 shown in FIG. 2 in longitudinal section is built according to the detailed description in DE-GM 7 508 649 from a mechanical spring mechanism 5 for actuating a switching device which can be switched on manually and can be triggered manually, electromagnetically or electrothermally in the form of an end face Contact device 10/11 arranged in front of the quenching plate stack 9 in the arc chamber.
  • the FI switch 2 shown in FIG. 3 largely consists of the same functional elements in the same arrangement: here too, in the upper part of the flat insulating material housing 3 there is the spring mechanism 5 which can be switched on by means of the actuating handle 4 and the electromagnetic triggering element 6 which interacts with it lower area of the housing 3 in the case of the circuit breaker 1, the bimetallic strip 8 of the electrothermal release element connected to a connecting terminal 7 and essentially the light, arc extinguishing device 9, between which the horn-shaped fixed contact piece 10 and the movable swivel contact piece 11 exist Switching distance is arranged.
  • the sum current transformer designed as a push-through transformer 12 is accommodated within a housing bulge projecting laterally outwards.
  • the holding magnetic relay 13 or the amplifier electronics for the fault current triggering is arranged here instead of the baffle plate package 9.
  • a T-shaped pivot lever 14 is provided for the functional coupling of the two switches 1 and 2 for the purpose of switching on and triggering.
  • This coupling member is pivotally mounted in the area of the housing cover 3 on the axis of the spring mechanism 5 of the one switch 1 and is acted upon on its transverse web which extends through the cover 3 by a shoulder pin 15 of the relevant spring mechanism 5 in order to trigger it. to pass on moment through a wall recess to the appropriately designed spring mechanism 5 of the other switch 2.
  • the actuating handles 4 of the two switches 1 and 2 are furthermore rigidly coupled to one another by a rail part 16 which engages over and clamps the outer ends of the handles 4 in a U-shape, as can be seen from FIGS. 1, 6 and 7.
  • test button 17 which is guided vertically displaceably within a lateral recess of the insulating material housing 3, is held by the leg spring 18 wound around a shoulder pin and is pressed into the rest position.
  • the longer spring leg extends through the shaft of the test button 17 in an X-shaped notch and is supported with its free end behind a wall shoulder of the housing 3.
  • this return spring 18 serves as a movable auxiliary contact within the test circuit in that its shorter leg contacts the potential-carrying magnetic yoke of the electromagnetic release element 6 and its longer leg, when the test button 17 is actuated, makes contact in the direction of the auxiliary winding which is at the opposite potential via the test resistor of the total current transformer 12.
  • the two switch housings 3 below the connection terminal 7 and located diagonally, penetrating the pivot for the actuating handle 4 have two through bores 19 which are on the side of the cover 3 of the circuit breaker 1 in the form of a short attachment nipple to the outside continue there.
  • These two approach nipples engage positively in the correspondingly enlarged bores 19 of the RCD switch housing 2 during assembly and thus make it possible to switch the two switches 1 and 2 using two screws Sleeves form-fitting to a 2-pole full ' : firmly connect the circuit breaker with each other.
  • FIG. 7 of the drawing shows how a 4-pole full circuit breaker according to the invention can be assembled and wired from three circuit breaker parts 1 and one RCD switch 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Relay Circuits (AREA)
EP79102570A 1978-08-04 1979-07-20 Elektrischer Vollschutzschalter Expired EP0008026B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2834327A DE2834327C2 (de) 1978-08-04 1978-08-04 Elektrischer Vollschutzschalter
DE2834327 1978-08-04

Publications (2)

Publication Number Publication Date
EP0008026A1 EP0008026A1 (de) 1980-02-20
EP0008026B1 true EP0008026B1 (de) 1981-04-15

Family

ID=6046283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102570A Expired EP0008026B1 (de) 1978-08-04 1979-07-20 Elektrischer Vollschutzschalter

Country Status (17)

Country Link
US (1) US4288768A (es)
EP (1) EP0008026B1 (es)
JP (1) JPS5549832A (es)
AR (1) AR224876A1 (es)
BR (1) BR7905007A (es)
DE (1) DE2834327C2 (es)
DK (1) DK328079A (es)
ES (1) ES483045A1 (es)
FI (1) FI66096C (es)
GR (1) GR64885B (es)
HK (1) HK54981A (es)
IN (1) IN152622B (es)
IT (1) IT1122427B (es)
NO (1) NO151725C (es)
PT (1) PT70018A (es)
YU (1) YU41657B (es)
ZA (1) ZA794033B (es)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162436A (en) * 1980-05-20 1981-12-14 Matsushita Electric Works Ltd Circuit breaker
DE3108393A1 (de) * 1981-03-05 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "schutzschalter mit von aussen zugaenglichem summenstromwandler"
DE3412273A1 (de) * 1984-04-02 1985-10-10 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Leitungsschutzschalter mit differenzstromausloesung
ES285200Y (es) * 1985-03-08 1986-05-01 Electrotecnica F. De Roda, S.A. Mejoras introducidas en los mecanismos de interruptores di- ferenciales para acoplamiento en o a interruptores automati-cos
FR2625834B1 (fr) * 1988-01-07 1990-09-07 Merlin Gerin Relais differentiel a tore embrochable
DE3825479A1 (de) * 1988-07-27 1990-02-01 Asea Brown Boveri Fehlerstromschutzschalter
GB2247568A (en) * 1990-08-30 1992-03-04 Mk Electric Ltd Circuitbreaker electrical control apparatus
US5260676A (en) * 1991-03-27 1993-11-09 Westinghouse Electric Corp. Dual wound trip solenoid
US5173831A (en) * 1991-08-19 1992-12-22 Sammartano Arthur J Neutral line circuit interrupter
DE9301187U1 (es) * 1993-01-28 1993-03-11 Siemens Ag, 8000 Muenchen, De
FR2711449B1 (fr) * 1993-10-18 1995-12-22 Merlin Gerin Bloc de protection différentielle avec passage des câbles.
FR2715517B1 (fr) * 1994-01-26 1996-03-22 Merlin Gerin Bloc déclencheur différentiel.
DE4420767C2 (de) * 1994-06-15 2002-07-11 Abb Patent Gmbh Prüftastenanordnung
CN1054231C (zh) * 1994-11-08 2000-07-05 施内德电气工业公司 具有电缆通道的差动保护装置
FR2731837B1 (fr) * 1995-03-16 1997-06-06 Legrand Sa Disjoncteur differentiel unipolaire et neutre
US7463124B2 (en) 1998-08-24 2008-12-09 Leviton Manufacturing Co., Inc. Circuit interrupting device with reverse wiring protection
US7400477B2 (en) 1998-08-24 2008-07-15 Leviton Manufacturing Co., Inc. Method of distribution of a circuit interrupting device with reset lockout and reverse wiring protection
US6437700B1 (en) 2000-10-16 2002-08-20 Leviton Manufacturing Co., Inc. Ground fault circuit interrupter
US6288882B1 (en) 1998-08-24 2001-09-11 Leviton Manufacturing Co., Inc. Circuit breaker with independent trip and reset lockout
US6949994B2 (en) 2002-12-30 2005-09-27 Leviton Manufacturing Co., Inc. GFCI without bridge contacts and having means for automatically blocking a face opening of a protected receptacle when tripped
US7944331B2 (en) 2003-02-03 2011-05-17 Leviton Manufacturing Co., Inc. Circuit interrupting device with reverse wiring protection
US7737809B2 (en) 2003-02-03 2010-06-15 Leviton Manufacturing Co., Inc. Circuit interrupting device and system utilizing bridge contact mechanism and reset lockout
ITBG20030035A1 (it) * 2003-05-20 2004-11-21 Abb Service Srl Dispositivo per interrutori di bassa tensione
CA2563190C (en) * 2004-04-08 2013-04-02 Leviton Manufacturing Co., Inc. Circuit interrupting device with a single test-reset button
US7271996B2 (en) * 2004-12-03 2007-09-18 Electro Industries/Gauge Tech Current inputs interface for an electrical device
US7455538B2 (en) 2005-08-31 2008-11-25 Leviton Manufacturing Co., Inc. Electrical wiring devices with a protective shutter
IES20070390A2 (en) * 2007-05-30 2008-03-19 Tripco Ltd A residual current device
US7804255B2 (en) 2007-07-26 2010-09-28 Leviton Manufacturing Company, Inc. Dimming system powered by two current sources and having an operation indicator module
US8004283B2 (en) * 2008-01-25 2011-08-23 Eaton Corporation Method of actuating a test function of an electrical switching apparatus at a panel and electrical switching apparatus employing the same
CN103474300B (zh) 2008-07-07 2016-03-09 立维腾制造有限公司 一种故障电路断路器
FR2950730B1 (fr) * 2009-09-25 2012-04-27 Hager Electro Sas Structure commune pour la realisation de blocs de protection a n phases et neutre.
US8444309B2 (en) 2010-08-13 2013-05-21 Leviton Manufacturing Company, Inc. Wiring device with illumination
CN102142339B (zh) * 2011-03-02 2013-06-05 许胜� 一种带漏电保护器的小型断路器
EP2685484B1 (en) * 2011-03-09 2018-01-17 Seari Electric Technology Co., Ltd. Circuit breaker for optimizing space allocation
US9728972B2 (en) 2014-08-20 2017-08-08 Qfe 002 Llc Alternative energy bus bar by pass breaker, methods of use and installation
US10950403B2 (en) 2018-09-06 2021-03-16 Carling Technologies, Inc. Remote operated ground fault circuit breaker
US10692678B2 (en) * 2018-09-06 2020-06-23 Carling Technologies, Inc. Circuit breaker with slide to test function
US11444447B2 (en) 2019-11-26 2022-09-13 Carling Technologies, Inc. Ground fault circuit breaker with remote testing capability

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563827B1 (de) * 1966-08-30 1970-09-24 Stotz Kontakt Gmbh Fehlerstromschutzschalter mit mindestens einem Schaltkontakt
CH249272A4 (es) * 1971-02-25 1974-04-30
DE2220558C3 (de) * 1972-04-26 1975-07-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Fehler strom schutzschalter
DE7508649U (de) * 1974-05-14 1975-08-28 Kopp H Hochleistungs-Selbstschalter
US3958197A (en) * 1975-01-24 1976-05-18 I-T-E Imperial Corporation High interrupting capacity ground fault circuit breaker
US3999103A (en) * 1975-03-14 1976-12-21 Westinghouse Electric Corporation Multi-pole ground fault circuit breaker
US3970975A (en) * 1975-05-05 1976-07-20 I-T-E Imperial Corporation Ground fault circuit breaker with ground fault trip indicator
US4001652A (en) * 1975-10-22 1977-01-04 General Electric Company Ground fault receptacle with improved stationary contact mounting and backing
DE2618288C3 (de) * 1976-04-27 1980-09-18 Brown, Boveri & Cie Ag, 6800 Mannheim Installations-Selbstschalter
DE2654373A1 (de) * 1976-12-01 1978-06-08 Licentia Gmbh Mit einem mehrpoligen leitungsschutzschalter kombinierter fehlerstromschutzschalter
NL7614248A (nl) * 1976-12-22 1978-06-26 Nl Weber Mij Stelsel voor beveiliging van een elektrische installatie in een gebouw.

Also Published As

Publication number Publication date
FI792407A (fi) 1980-02-05
EP0008026A1 (de) 1980-02-20
NO151725C (no) 1985-05-22
YU41657B (en) 1987-12-31
AR224876A1 (es) 1982-01-29
US4288768A (en) 1981-09-08
HK54981A (en) 1981-11-20
NO792532L (no) 1980-02-05
BR7905007A (pt) 1980-04-29
GR64885B (en) 1980-06-06
DE2834327C2 (de) 1983-01-13
FI66096C (fi) 1984-08-10
ZA794033B (en) 1980-08-27
PT70018A (en) 1979-09-01
IN152622B (es) 1984-02-25
YU187479A (en) 1982-06-30
IT1122427B (it) 1986-04-23
FI66096B (fi) 1984-04-30
DE2834327A1 (de) 1980-02-21
NO151725B (no) 1985-02-11
ES483045A1 (es) 1980-04-16
DK328079A (da) 1980-02-05
JPS5549832A (en) 1980-04-10
IT7924921A0 (it) 1979-08-03

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