DE2062694B2 - Residual current circuit breaker - Google Patents

Residual current circuit breaker

Info

Publication number
DE2062694B2
DE2062694B2 DE2062694A DE2062694A DE2062694B2 DE 2062694 B2 DE2062694 B2 DE 2062694B2 DE 2062694 A DE2062694 A DE 2062694A DE 2062694 A DE2062694 A DE 2062694A DE 2062694 B2 DE2062694 B2 DE 2062694B2
Authority
DE
Germany
Prior art keywords
current
magnet
core
circuit breaker
winding
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Withdrawn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
DE2062694A
Other languages
German (de)
Other versions
DE2062694A1 (en
Inventor
Helmut 8400 Regensburg Roesch
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
Priority claimed from DE19702044302 external-priority patent/DE2044302B2/en
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE2062694A priority Critical patent/DE2062694B2/en
Priority to CH1197071A priority patent/CH538773A/en
Priority to DK408471A priority patent/DK142664C/en
Priority to FR7132314A priority patent/FR2106374B1/fr
Priority to GB4198471A priority patent/GB1369817A/en
Priority to JP6962271A priority patent/JPS476429A/ja
Priority to AT779671A priority patent/AT315949B/en
Priority to JP10359071A priority patent/JPS4712829A/ja
Publication of DE2062694A1 publication Critical patent/DE2062694A1/en
Publication of DE2062694B2 publication Critical patent/DE2062694B2/en
Priority to BE171920A priority patent/BE847794Q/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26Emergency 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
    • H02H3/32Emergency 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
    • H02H3/33Emergency 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/25Magnetic cores made from strips or ribbons
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/28Current transformers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26Emergency 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
    • H02H3/32Emergency 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
    • H02H3/33Emergency 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
    • H02H3/332Emergency 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 with means responsive to dc component in the fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Breakers (AREA)
  • Protection Of Transformers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

kern gegenüber einem Ringbandkern gleichen AufPatentanspruch: baus eine gescherte Hystereseschleife und damitcores have the same patent claim as a toroidal core: build a sheared hysteresis loop and thus einen erheblich größeren Induktionshub, der ja alsa considerably larger induction stroke, which is than Fehlerstromschutzschalter mit einem Summen- die Differenz zwischen der Sättigungsinduktion und stromwandler, der einen Magnetkern aufweist mit 5 der Remanenzinduktion definiert ist.
Primärwicklungen zum Anschluß an einen zu Schnittbandkerne als solche sind zwar bekannt
Residual current circuit breaker with a total - the difference between the saturation induction and current transformer, which has a magnetic core with 5 the remanent induction is defined.
Primary windings for connection to a cut ribbon cores as such are known
überwachenden Stromkreis und mit einer Sekun- (H. Reinboth: »Technologie und Anwendung därwicklung, die die Erregerwicklung eines auf magnetischer Werkstoffe«, Berlin 1958, S. 155), sie ein Schaltschloß für eine Schalteinrichtung ein- wurden jedoch zur Vereinfachung der Montage wirkenden Auslösemagneten speist, wobei der io fertig gewickelter Spulen, z. B. von Drosseln, entMagnetkern einen Induktionshub hat, der so wickelt. Da die Primärwicklungen eines Sununengrüß ist, daß eine durch einen pulsierenden, in Stromwandlers in einem Fehlerstromschutzschalter einer Primärwicklung des Summenstromwandlers jedoch jeweils nur aus einem vom ringförmigen fließenden Gleichstromfehlerstrom in der Sekun- Magnetkern des Summenstromwandlers umschlosdärwicklung induzierte Spannung zum Betätigen 15 senen Draht bestehen oder, wie die Sekundärwickdes Auslösemagneten ausreicht, nach Haupt- lung, nur sehr wenige Windungen haben, besteht bei anmeldung P 20 44 302.1-32, dadurch ge- Fehlerstromschutzschaltem kein Bedürfnis nach einer kennzeichnet, daß der Magnetkern (5) ein solchen Montagevereiniachung.
Schnittbandkern ist. Die Erfindung sei an Hand der Zeichnung näher
monitoring circuit and with a second (H. Reinboth: "Technology and application of the winding, the excitation winding on magnetic materials", Berlin 1958, p. 155), they were a switch mechanism for a switching device, however, to simplify the assembly Trigger magnet feeds, the io finished wound coils, z. B. of chokes, entMagnetkern has an induction stroke that winds so. Since the primary windings of a Sununengrüß is that a pulsating current transformer in a residual current circuit breaker of a primary winding of the summation current transformer consists of only one of the ring-shaped flowing direct current residual currents in the secondary magnetic core of the summation current transformer enclosing voltage to operate 15 separate wire, or how The secondary winding of the tripping magnet is sufficient, according to Hauptlung, has only very few turns, there is no need for a fault current circuit breaker with registration P 20 44 302.1-32, indicating that the magnetic core (5) has such a mounting simplification.
Cutting tape core is. The invention is closer to the drawing
20 erläutert:20 explains: Die Zeichnung zeigt in schematischer DarstellungThe drawing shows in a schematic representation einen Fehlerstromschutzschalter 3 gemäß der Erfindung, der zum Überwachen der Leitungen R/U und Mn einer elektrischen Anlage dient. Er weist 25 einen Summenstromwandler 4 mit einem Magnet-a fault current circuit breaker 3 according to the invention, which is used to monitor the lines R / U and M n of an electrical system. It has 25 a summation current transformer 4 with a magnet Die Hauptanmeldung bezieht sich auf einen Fehler- kern S auf. Der Magnetkern 5 ist ein Schnittband- »tromschutzschalter mit einem Summenstromwandler, kern, der aus zwei Hälften besteht, die durch ein tier einen Magnetkern aufweist mit Primärwicklungen Spannband 5 α zusammengehalten sind, und der ium Anschluß an einen zu überwachenden Strom- zwei Luftspalte Sb aufweist. Die Banddicke des kreis und mit einer Sekundärwicklung, die die 30 Schnittbandkernes kann z. B. 0,006 bis 0,3 mm beErregerwicklung eines auf ein Schaltschloß für eine tragen. Dieser Magnetkern umschließt die beiden die Schalteinrichtung einwirkenden Auslösemagneten Primärwicklungen darstellenden Drähte 6, die in den speist, wobei der Magnetkern einen Induktionshub zu überwachenden Leitungen R/U und Mn liegen, hat, der so groß ist, daß eine durch einen pulsieren- Ferner sitzt auf dem Magnetkern 5 eine Sekundärden, in einer Primärwicklung des Summenstrom- 35 wicklung 7, die an die Erregerwicklung 9 eines Wandlers fließenden Gleichstromfehlerstrom in der Auslösemagneten 8 angeschlossen ist. Dieser AusSekundärwicklung induzierte Spannung zum Betäti- lösemagnet 8, der ein Haltemagnet oder ein Arbeitsgen des Auslösemagneten ausreicht. magnet sein kann, wirkt über ein mechanisches Ver-Der Erfindung liegt die Aufgabe zugvunde, den bindungäteil 8 a auf ein Schaltschloß 10 ein, welches Einsatz eines derartigen Fehlerstromschutzschalters 40 über eine Schaltstange 10 a die in den zu überauch bei Gleichstrom-Fehlerströmen, wie sie in wachenden Leitungen R/U und M1, liegenden Schalt-Stromkreisen mit thyristorgesteuerten Gleichstrom- kontakte betätigt.The main application relates to an error core S on. The magnetic core 5 is a cutting band »current protection switch with a summation current transformer, core, which consists of two halves, which are held together by a tier having a magnetic core with primary windings tensioning band 5 α, and which has two air gaps Sb connected to a current to be monitored . The tape thickness of the circle and with a secondary winding, which can cut the 30 core tape z. B. 0.006 to 0.3 mm excitation winding one on a switch lock for one wear. This magnetic core encloses the two wires 6 which act as the triggering magnets and which act as the primary windings and which feeds into the lines R / U and M n to be monitored, the magnetic core being so large that a pulsating further sits On the magnetic core 5, a secondary earth in a primary winding of the summation current winding 7, which is connected to the excitation winding 9 of a converter in the DC fault current flowing in the tripping magnet 8. This secondary winding induced voltage to the actuating releasing magnet 8, which is sufficient for a holding magnet or a work of the releasing magnet. can be magnet, acts via a mechanical Ver-The invention has the task of providing the bindingäteil 8 a on a switch lock 10, which use of such a residual current circuit breaker 40 via a switching rod 10 a in the to overauch with direct current residual currents, such as them In guarding lines R / U and M 1 , horizontal switching circuits operated with thyristor-controlled direct current contacts. motoren auftreten, zu ermöglichen. Hierzu ist nach Der Fehlerstromschutzschalter nach der Zeich-motors occur to allow. The residual current circuit breaker according to the drawing Hauptanmeldung dafür zu sorgen, daß der Magnet- nung löst aus, wenn die Drähte 6 von einem Wechselkern einen Induktionshub hat, der so groß ist, daß 45 stromfehlerstrom durchflossen werden. Wegen der eine durch einen pulsierenden, in einer Primärwick- Luftspalte 5 b ist der Induktionshub des Schnittbandlung des Summenstromwandlers fließenden Gleich- kernes, d. h. Differenz zwischen seiner Sättigungsstrom-Fehlerstrom in der Sekundärwicklung indu- induktion und seiner Remanenzinduktion jedoch gezierte Spannung zum Betätigen des Auslösemagneten nügend groß, daß auch die durch einen in den ausreicht. Dies ist durch weichmagnetische Werk- 5° Drähten 6 fließenden pulsierenden Gleichstromstoffe, sogenanntes F-Material (Zeitschrift »E und M, fehlerstrom hervorgerufene Änderung des Magnet-Jg. 85,1968, Heft 3, S. 138) möglich. flusses zum Induzieren einer die AnsprechspannungMain application to ensure that the magnet is triggered when the wires 6 from an interchangeable core have an induction stroke that is so great that 45 fault current flows through them. Due to the voltage induced by a pulsating, in a primary winding air gap 5 b , the induction stroke of the cutting band of the summation current transformer, ie the difference between its saturation current fault current in the secondary winding and its remanence induction, however, sufficient voltage is sufficient to operate the tripping magnet great that even the one in the is enough. This is possible by means of soft magnetic work 5 ° wires 6 flowing pulsating direct current substances, so-called F-material (magazine »E and M, fault current induced change in Magnet-Jg. 85,1968, issue 3, p. 138). flux to induce the response voltage Die geschilderte Aufgabe wird in Weiterbildung des Auslösemagneten 8 übersteigenden Spannung in der Erfindung nach der Hauptanmeldung nun speziell der Sekundärwicklung 7 des Summenstromwandlers 4 dadurch gelöst, daß der Magnetkern ein Schnittband- 55 ausreicht und der Fehlerstromschutzschalter auch kern ist. beim Fließen eines derartigen pulsierenden Gleich-The described task is in further development of the tripping magnet 8 exceeding voltage in of the invention according to the main application now specifically the secondary winding 7 of the summation current transformer 4 solved in that the magnetic core a cutting tape 55 is sufficient and the residual current circuit breaker also core is. when such a pulsating equilibrium Durch die beiden Luftspalte hat der Schnittband- Stromfehlerstromes auslöst.The cutting tape current fault current has triggered through the two air gaps.
DE2062694A 1970-09-08 1970-12-19 Residual current circuit breaker Withdrawn DE2062694B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE2062694A DE2062694B2 (en) 1970-09-08 1970-12-19 Residual current circuit breaker
CH1197071A CH538773A (en) 1970-09-08 1971-08-13 Residual current circuit breaker
DK408471A DK142664C (en) 1970-09-08 1971-08-20 FAULT POWER PROTECTION SWITCH
FR7132314A FR2106374B1 (en) 1970-09-08 1971-09-07
AT779671A AT315949B (en) 1970-09-08 1971-09-08 Residual current circuit breaker
GB4198471A GB1369817A (en) 1970-09-08 1971-09-08 Earth leakage protective arrangement
JP6962271A JPS476429A (en) 1970-09-08 1971-09-08
JP10359071A JPS4712829A (en) 1970-09-08 1971-12-20
BE171920A BE847794Q (en) 1970-09-08 1976-10-29 LEAKAGE CURRENT CIRCUIT BREAKER,

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702044302 DE2044302B2 (en) 1970-09-08 1970-09-08 Residual current circuit breaker
DE2062694A DE2062694B2 (en) 1970-09-08 1970-12-19 Residual current circuit breaker

Publications (2)

Publication Number Publication Date
DE2062694A1 DE2062694A1 (en) 1972-06-29
DE2062694B2 true DE2062694B2 (en) 1975-05-28

Family

ID=25759694

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2062694A Withdrawn DE2062694B2 (en) 1970-09-08 1970-12-19 Residual current circuit breaker

Country Status (8)

Country Link
JP (2) JPS476429A (en)
AT (1) AT315949B (en)
BE (1) BE847794Q (en)
CH (1) CH538773A (en)
DE (1) DE2062694B2 (en)
DK (1) DK142664C (en)
FR (1) FR2106374B1 (en)
GB (1) GB1369817A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU78600A1 (en) * 1977-11-28 1979-06-13 Gath N Fault current protection switch
US4366520A (en) * 1981-03-25 1982-12-28 Magnetic Metals Corporation Differential transformer core for pulse currents
FR2520164A1 (en) * 1982-01-19 1983-07-22 Merlin Gerin OWN CURRENT DIFFERENTIAL TRIGGERING DEVICE
DE3202320A1 (en) * 1982-01-26 1983-07-28 Siemens AG, 1000 Berlin und 8000 München Fault current protection switch that responds to fault currents with direct current components
DE3244670A1 (en) * 1982-12-02 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Fault current protection switch
US4622846A (en) * 1985-11-05 1986-11-18 Halliburton Company Consistency and static gel strength measuring device and method
FR2653610B1 (en) * 1989-10-25 1991-12-27 Etude Realisa Disjoncteurs SELECTIVE DIFFERENTIAL SWITCH WITH FAULT CURRENT.
DE19907320C2 (en) * 1999-02-20 2001-03-08 Aloys Wobben Toroidal core and its use
FR2993058B1 (en) * 2012-07-05 2014-08-08 Hager Electro Sas DEVICE FOR DIFFERENTIAL PROTECTION.
KR102539688B1 (en) * 2016-04-28 2023-06-07 엘에스일렉트릭(주) Leakage Current Detector
CN107658092B (en) * 2016-07-25 2020-06-05 施耐德电气工业公司 Ferrite core, current transformer and earth leakage protection switch
CN112955989A (en) * 2018-11-08 2021-06-11 Tdk株式会社 Electromagnetic induction type power generation device

Also Published As

Publication number Publication date
FR2106374B1 (en) 1976-04-30
AT315949B (en) 1974-06-25
DE2062694A1 (en) 1972-06-29
JPS476429A (en) 1972-04-10
JPS4712829A (en) 1972-06-28
CH538773A (en) 1973-06-30
FR2106374A1 (en) 1972-05-05
GB1369817A (en) 1974-10-09
DK142664B (en) 1980-12-08
BE847794Q (en) 1977-02-14
DK142664C (en) 1981-09-14

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