EP0059890B1 - Schutzschalter mit von aussen zugänglichem Summenstromwandler - Google Patents

Schutzschalter mit von aussen zugänglichem Summenstromwandler Download PDF

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Publication number
EP0059890B1
EP0059890B1 EP82101445A EP82101445A EP0059890B1 EP 0059890 B1 EP0059890 B1 EP 0059890B1 EP 82101445 A EP82101445 A EP 82101445A EP 82101445 A EP82101445 A EP 82101445A EP 0059890 B1 EP0059890 B1 EP 0059890B1
Authority
EP
European Patent Office
Prior art keywords
current transformer
totalising
accessible
circuit breaker
terminals
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
EP82101445A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0059890A1 (de
Inventor
Fritz Mentel
Josef Baldauf
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
Priority to AT82101445T priority Critical patent/ATE10242T1/de
Publication of EP0059890A1 publication Critical patent/EP0059890A1/de
Application granted granted Critical
Publication of EP0059890B1 publication Critical patent/EP0059890B1/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
    • H01H83/14—Protective 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
    • H01H83/144—Protective 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

Definitions

  • the invention relates to a circuit breaker, which has an externally accessible, housed in the housing of the switch current transformer for passing through the lines to be monitored, and terminals on the housing, which are connected to other protective components, in particular those of a circuit breaker.
  • the invention has for its object to develop a circuit breaker of the type described so that the lines are necessarily correctly inserted.
  • the summation current transformer is arranged in the housing in the direction of insertion of the lines directly in front of the connection terminals, so that its line entry opening is accessible only through an opening in the summation current transformer.
  • a particularly simple and easy to manufacture structure consists in that the opening of the summation current transformer tapers in a funnel shape to the line entry opening of the connection terminals.
  • FIG. 1 shows a combined residual current circuit breaker and circuit breaker in the manner of individual switches joined together, in which a connection terminal is shown in section in the area of the summation current transformer.
  • the circuit breaker 1 according to FIG. 1 can be equipped with two connecting terminals 2 or with several connecting terminals.
  • the total current transformer 3 is arranged in the housing 5 directly in front of the connection terminals 2.
  • a line 6 can be introduced to the line insertion opening 7 of a connection terminal 2 only through an opening 4 in the summation current transformer 3.
  • the cable entry opening 7 is therefore only accessible through the central opening 4 in the summation current transformer 3.
  • lines 6 can only be introduced in one way by the summation current transformer 3. It is therefore not possible to lay cables around the summation current transformer several times.
  • connection of lines is further facilitated if the opening 4 of the summation current transformer 3 tapers in a funnel shape to the line insertion opening 7 of the connection terminals 2.
  • the opening 4 for the line bushing can be adapted to the dimensions of the line cross sections provided for connection, with sufficient play still being left to be able to connect the lines easily. As a result, the geometric position of the conductors is then particularly clearly defined.
  • FIG. 2 shows a combined residual current circuit breaker in a compact design, which in the exemplary embodiment is provided with line bushings for four lines 6. This can also be a single oval-shaped central opening. On the opposite side of the circuit breaker, further connection terminals are arranged in the usual way in order to connect the lines leading to the protected consumer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP82101445A 1981-03-05 1982-02-25 Schutzschalter mit von aussen zugänglichem Summenstromwandler Expired EP0059890B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101445T ATE10242T1 (de) 1981-03-05 1982-02-25 Schutzschalter mit von aussen zugaenglichem summenstromwandler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813108393 DE3108393A1 (de) 1981-03-05 1981-03-05 "schutzschalter mit von aussen zugaenglichem summenstromwandler"
DE3108393 1981-03-05

Publications (2)

Publication Number Publication Date
EP0059890A1 EP0059890A1 (de) 1982-09-15
EP0059890B1 true EP0059890B1 (de) 1984-11-07

Family

ID=6126424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101445A Expired EP0059890B1 (de) 1981-03-05 1982-02-25 Schutzschalter mit von aussen zugänglichem Summenstromwandler

Country Status (7)

Country Link
EP (1) EP0059890B1 (ja)
JP (1) JPS57157432A (ja)
AT (1) ATE10242T1 (ja)
DE (1) DE3108393A1 (ja)
ES (1) ES271969Y (ja)
GR (1) GR78226B (ja)
ZA (1) ZA821434B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398141B (de) * 1987-09-15 1994-09-26 Felten & Guilleaume Ag Oester Schaltgerätekombination
JPH03210726A (ja) * 1990-01-12 1991-09-13 Mitsubishi Electric Corp 漏電警報機能付き配線用遮断器
IT1313953B1 (it) * 1999-12-16 2002-09-26 Abb Ricerca Spa Dispositivo di interruzione e protezione di un circuito dialimentazione di un carico contro i guasti verso terra.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438003A1 (de) * 1962-08-03 1969-02-13 Licentia Gmbh Selbstschalter,der aus einzelnen,in in sich abgeschlossenen Bauelementen,z.B. baukastenmaessig zusammengesetzt ist
US3761774A (en) * 1970-03-20 1973-09-25 Black & Decker Mfg Co Ground fault protective apparatus
US3784940A (en) * 1972-09-15 1974-01-08 Federal Pacific Electric Co Circuit breaker with overcurrent and auxiliary releases
DE2737618C3 (de) * 1977-08-20 1980-03-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anschluß des Stromwandlers eines mit Leitungsschutzschaltern kombinierten Fehlerstromauslösers
DE2834327C2 (de) * 1978-08-04 1983-01-13 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Elektrischer Vollschutzschalter

Also Published As

Publication number Publication date
ES271969Y (es) 1984-05-01
ATE10242T1 (de) 1984-11-15
JPH0145692B2 (ja) 1989-10-04
ES271969U (es) 1983-11-01
DE3108393A1 (de) 1982-09-16
GR78226B (ja) 1984-09-26
JPS57157432A (en) 1982-09-29
ZA821434B (en) 1983-01-26
EP0059890A1 (de) 1982-09-15
DE3108393C2 (ja) 1989-08-10

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