DK144200B - FAULT POWER PROTECTION SWITCH - Google Patents

FAULT POWER PROTECTION SWITCH Download PDF

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Publication number
DK144200B
DK144200B DK357178AA DK357178A DK144200B DK 144200 B DK144200 B DK 144200B DK 357178A A DK357178A A DK 357178AA DK 357178 A DK357178 A DK 357178A DK 144200 B DK144200 B DK 144200B
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DK
Denmark
Prior art keywords
switch
circuit breaker
residual current
current circuit
protection switch
Prior art date
Application number
DK357178AA
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Danish (da)
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DK357178A (en
DK144200C (en
Inventor
P Flohr
M Staffen
J Baldauf
Original Assignee
Siemens Ag
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Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of DK357178A publication Critical patent/DK357178A/en
Publication of DK144200B publication Critical patent/DK144200B/en
Application granted granted Critical
Publication of DK144200C publication Critical patent/DK144200C/en

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Classifications

    • 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
    • H01H83/02Protective 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

Description

(19) DANMARK(19) DENMARK

|@)| @)

mj da» FREMUEGGELSESSKRIFT <id 144200 Bmj da »PROPERTY WRITING <id 144200 B

DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENETDIRECTORATE OF PATENT AND TRADEMARK

(21) Ansøgning nr. 3571/78 (51) int.CI.3 Η 01 Η 83/14 (22) Indleveringsdag 1^· aug. 1978 (24) Løbedag 14. aug. 1978 (41) Aim. tilgængelig 3· mar. 1979 (44) Fremlagt 11 · j’an. 1982 (86) International ansøgning nr. -(86) International indleveringsdag -(85) Videreførelsesdag -(62) Stamansøgning nr. -(21) Application No. 3571/78 (51) int.CI.3 Η 01 Η 83/14 (22) Filing date 1 ^ · aug. 1978 (24) Running day 14 Aug. 1978 (41) Aim. available 3 · mar. 1979 (44) Submitted 11 · j’an. 1982 (86) International Application No - (86) International Filing Date - (85) Submission Date - (62) Master Application No -

(30) Prioritet 2. sep. 1977 * 2739 632, DE(30) Priority 2. sep. 1977 * 2739 632, DE

(71) Ansøger SIEMENS AKTIENGESELLSCHAFT, Berlin und Muenchen, 8 Muene= hen 2, DE.(71) Applicant SIEMENS AKTIENGESELLSCHAFT, Berlin and Munich, 8 Muene = hen 2, DE.

(72) Opfinder Peter Flohr, DE: Martin Bfcaffen, DE: Josef Baldauf, DE.(72) Inventor Peter Flohr, DE: Martin Bfcaffen, DE: Josef Baldauf, DE.

(74) Fuldmægtig Ingeniørfirmaet Giersing & Stellinger.(74) Clerk Ingeniørfirmaet Giersing & Stellinger.

(54) Fejlstrømbeskytt eises afbryder.(54) Circuit breaker protects the circuit breaker.

Opfindelsen angår en fejlstrømbeskyttelsesafbryder på hvis af en overdækningshætte med passage for et håndbetjeningsorgan overdækkede sokkel er anbragt en sumstrømtransformator, en udløser og en afbryderlås, og hvis sokkel optager af en afbryderaksel og en fjeder påvirkede kontaktarme, ved hvis ender der er anbragt kontaktstykker, som samvirker med et faststående kontaktstykke, som er fastgjort ved en løbeskinne, som går over i en udvendigt liggende ledeplade i en slukkepladestabel, og med en passage til soklen.En sådan fejlstrømbeskyttelsesafbryder kendes fra DE-offentliggørelsesskrift 2 504 007. Denne kendte fejlstrømbeskyttelsesafbryder har en høj udformning. Ved en ^ lignende udformet fejlstrømbeskyttelsesafbryder (DEbrugsmønster 6 753 179) er q et slankt, knebelformet håndbetjeningsorgan med henblik på mekanisk og O elektrisk beskyttelse anbragt i en dyb fordybning.The invention relates to a residual current circuit breaker on the base of which is covered by a cover cap with a passage for a hand control means a sum current transformer, a trigger and a switch lock, and whose base receives contact switches of a switch shaft and a spring, the ends of which are arranged together. with a fixed contact piece, which is fastened to a running rail, which merges into an external baffle in an extinguishing plate stack, and with a passage to the socket. Such a residual current circuit breaker is known from DE publication 2 504 007. . In a similarly designed residual current circuit breaker (DE use pattern 6 753 179), q is a slender, gag-shaped hand control device for mechanical and electrical protection arranged in a deep recess.

2! Mellem afbryderkammeret i soklen og de på soklen anbragte komponenter J· som fx. sumstrømtransformator og afbryderlås, samt ved kanten af håndbetje- 1— ningsorganet tilvejebringes ved de kendte afbrydere (DE-offentliggørelses-X, skrift 2 504 007 og DE-brugsmønster 6 753 179) i overensstemmelse med sikker- ^ hedsbestemmelserne foranstaltninger til elektrisk og mekanisk beskyttelse, 2 144200 hovedsageligt ved egnede geometriske afstande. Ved en høj udformning er dette forholdsvis enkelt.2! Between the switch chamber in the socket and the components J · placed on the socket, e.g. sum current transformer and switch lock, as well as at the edge of the hand control means are provided by the known switches (DE publication X, letter 2 504 007 and DE usage pattern 6 753 179) in accordance with the safety regulations measures for electrical and mechanical protection .2 144200 mainly at suitable geometric distances. With a high design, this is relatively simple.

Nar man vil udforme en fejlstrømbeskyttelsesafbryder lavt, dvs flad og kompakt, ligger slukkekammeret og sumstrømtransformatoren samt afbryderlåsen tættere ved hinanden, hvorfor isolationsproblemerne bliver væsentlig større. Herved og ved lignende fladt udformede betjeningsorganer, som fx. prøvetasten, er også pi grund af tolerancer tilstedeværende spalter vanskelige at kontrollere.When you want to design a residual current circuit breaker low, ie flat and compact, the extinguishing chamber and the sum current transformer as well as the circuit breaker lock are closer to each other, which is why the insulation problems become significantly greater. Hereby and with similar flat-designed operating means, such as e.g. the test key is also difficult to control due to tolerances present in the slots.

Opfindelsen har til opgave at tilvejebringe en lav udformning af en kompakt fejlstrømbeskyttelsesafbryder under samtidig udligning af tolerancer.The object of the invention is to provide a low design of a compact residual current circuit breaker while simultaneously compensating for tolerances.

Denne opgave løses ifølge opfindelsen ved de i krav l's kendetegnende del angivne egendommeligheder. Ved hjælp af afbryderkontaktstykker, som hver er anbragt på en vippebevægeligt understøttet arm, opnår man en reduktion af det til åbning af kontaktstykkerne nødvendige drejningsmoment med hensyn til afbrydervalsen. Derved kan afbryderlåsen gøres svagere og mindre. Den kontaktarmen påvirkende fjeder frembringer ikke blot kontakttrykket, men tjener samtidig som afbryderfjeder. Som følge af anbringelsen af slukningspladerne under en tilslutningsklemme og ved deres udformning som byggegruppe med det faste kontaktstykke lettes fremstillingen, og der spares plads. Slukkepladerne kan anbringes hovedsageligt parallelt med fejlstrømbeskyttelsesafbryderens basis, hvorved udblæste varme luftarter ikke frembyder nogen risiko, hverken for området for tilslutningsklemmen eller for bæreskinnen under fejlstrømbeskyttelsesafbryderens basis,This object is solved according to the invention by the features stated in the characterizing part of claim 1. By means of switch contacts, each of which is arranged on a rocker arm supported by a rocker, a reduction of the torque required to open the contacts with respect to the switch roller is obtained. This can make the switch lock weaker and smaller. The spring acting on the contact arm not only produces the contact pressure, but also serves as a switch spring. As a result of the placement of the extinguishing plates under a connection terminal and by their design as a building group with the fixed contact piece, the manufacture is facilitated and space is saved. The extinguishing plates can be placed substantially parallel to the base of the residual current circuit breaker, whereby exhausted hot gases present no risk, neither for the area of the connection terminal nor for the support rail under the base of the residual current circuit breaker,

En yderligere væsentlig fordel ligger i, at en bred passage i fejlstrømbeskyttelsesafbryderens sokkel letter monteringen og lukkes sikkert ved hjælp af et særligt udformet tætningsstykke. Dette tætningsstykke udfører samtidig den funktion at fastholde ledninger i ordnet tilstand. Der kan opnås korte ledningsveje.A further significant advantage lies in the fact that a wide passage in the base of the residual current circuit breaker facilitates the assembly and is securely closed by means of a specially designed sealing piece. This seal also performs the function of holding wires in an orderly condition. Short cable paths can be obtained.

Ved hjælp af en mellem afbryderlåsens lejeplatiner indgribende centreringsnæse på afbryderhusets overdækningshætte sikres, at der selv ved gængse tolerancer kun optræder små tilladelige spalter mellem håndbetjeningsgrebet og formstofhuset.By means of a centering nose on the cover housing of the switch housing which engages between the bearing plates of the switch lock, it is ensured that, even with normal tolerances, only small permissible gaps occur between the manual control handle and the plastic housing.

Husets overdækningshætte kan navnlig udvise en fordybning med en passage for afbryderlåsens håndbetjeningsorgan for at beskytte dette mod sideværts indvirkninger, som det i og for sig er kendt ved slanke knebelformede betjeningsorganer (DE-brugsmønster 6 753 179). Ved udformningen ifølge opfindelsen kan prøvetasten dog udformes flad og kvadratisk, hvilket letter håndteringen. Centreringsnæsen sørger så for, at de ved en fordybningsfri overgang fra betjeningsorganet, prøvetasten, til kanten af overdækningen 144200 3 uundgåelige spalter holdes så små, at sikkerhedsbestemmelserne tilfredsstilles. Herved og ved håndbetjeningsorganet til manuel indkobling og afbrydelse kan man altså nøjes med flade fordybninger eller også med fordybningsfrie kanter.In particular, the cover cap of the housing may have a recess with a passage for the manual control means of the switch lock in order to protect it against lateral effects, as is known per se by slender gag-shaped operating means (DE usage pattern 6 753 179). In the design according to the invention, however, the test key can be designed flat and square, which facilitates handling. The centering nose then ensures that in the event of a depression-free transition from the control, the test key, to the edge of the cover 144200 3, the inevitable slots are kept so small that the safety regulations are satisfied. Hereby and with the hand control means for manual switching on and disconnection, one can thus be content with flat recesses or also with recess-free edges.

Opfindelsen er nærmere forklaret i det følgende under henvisning til tegningen, på hvilken: fig. 1 viser et snit af en fejlstrømbeskyttelsesafbryder, vinkelret på afbrydervalsen, fig. 2 fejlstrømbeskyttelsesafbryderen set fra siden med visse dele fjernet, fig. 3 samme set fra oven, fig. 4 fejlstrømbeskyttelsesafbryderen set fra enden ved hind-bet jeningsorganet og fig. 5-7 en del af det todelte tætningsstykke i fejlstrømbeskyttelsesafbryderen, vist i støree målestok, set i retning af afbrydervalsen, fra oven og fra siden.The invention is explained in more detail in the following with reference to the drawing, in which: fig. 1 shows a section of a residual current circuit breaker, perpendicular to the circuit breaker, fig. 2 is a side view of the residual current circuit breaker with certain parts removed, FIG. 3 the same seen from above, fig. 4 is an end view of the residual current circuit breaker at the barrier means, and FIG. 5-7 a part of the two-part sealing piece in the residual current circuit breaker, shown on a larger scale, seen in the direction of the circuit breaker roller, from above and from the side.

Den i fig. 1 viste fejlstrømbeskyttelsesafbryder har bevægelige afbryderkontaktstykker 1, som hver er anbragt på en kontaktarm 2. Kontaktarmen 2 er vippebevægeligt understøttet på soklen ved en støttevæg 4. På den ene side er kontaktarmen 2 påvirket af en fjeder 5, der som trykfjeder støtter mod armen. På den anden side af understøtningspunktet er afbryderkontaktstykket 1 anbragt. Overfor dette er et faststående kontaktstykke 6 anbragt på en løbeskinne 7. Løbeskinnen er på sin ene side elektrisk forbundet med en tilslutningsklemme 8. På sin anden side går løbeskinnen 7 over i en udvendigt liggende slukkeplade eller en ledeplade 9 i en slukkepladestabel 10. Tilslutningsklemmen 8, løbeskinnen 7 og slukkepladestablen 10 kan udformes som en byggegruppe.The device shown in FIG. 1 has movable switch contact pieces 1, each of which is arranged on a contact arm 2. The contact arm 2 is tiltably supported on the base by a support wall 4. On the one hand, the contact arm 2 is actuated by a spring 5 which supports the arm as a compression spring. On the other side of the support point, the switch contact piece 1 is arranged. Opposite this, a fixed contact piece 6 is arranged on a running rail 7. The running rail is on one side electrically connected to a connection terminal 8. On the other hand, the running rail 7 merges into an external extinguishing plate or a guide plate 9 in a extinguishing plate stack 10. The connecting terminal 8 , the running rail 7 and the extinguishing plate stack 10 can be designed as a building group.

Som følge af de til siden forløbende slukkeplader i slukkepladestablen 10 kan afbrydergas, som træder ud gennem udblæsningsåbningen 11, ikke frembyde nogen risiko for tilslutningsklemmen 8 eller for en ved basis 12 værende bæreskinne.Due to the lateral extinguishing plates in the extinguishing plate stack 10, switch-off gas which exits through the exhaust opening 11 cannot present any risk to the connection terminal 8 or to a support rail at base 12.

Den viste kontaktarm 2 og yderligere kontaktarme for yderligere poler aktiveres ved hjælp af medbringere 15 fra en afbrydervalse 13, hvis tænkte akse er betegnet med 14. Det til kontaktåbningen nødvendige drejnihgsmoment er som følge af kontaktarmen 2's understøtning formindsket med hensyn til afbrydervalsen 13.The contact arm 2 shown and further contact arms for further poles are activated by means of carriers 15 from a switch roller 13, the imaginary axis of which is indicated by 14. The torque required for the contact opening is reduced with respect to the switch roller 13 due to the support of the contact arm 2.

En passage til soklen 3 er lukket ved hjælp af et todelt tætningsstykke, hvis ene del 17 danner en holder 18 med U-formet profil. Ved siden af denne holder forbliver en mindre passage, som er overdækket med en yderligere 4 144200 del 20. Delen 20 danner en klemskulder 21 mod den første del 17 af tætningsstykket 16. Mellem klemskuldrene 21 på delene 17 og 20 kan ledninger 22 fastklemmes ordnet. I holderen 18 kan anbringes en ledningsforbindelse mellem ledningerne 22 og 23. ledningerne kan fastklemmes i holderen 18. Ved en sidan opbygning opnår man i forbindelse med den beskrevne anbringelse af komponenterne ko'rte ledningsveje og en god af tætning af afbryderkontakterne mod transformatorrummet.A passage to the base 3 is closed by means of a two-part sealing piece, one part 17 of which forms a holder 18 with a U-shaped profile. Next to this holder remains a smaller passage, which is covered with a further 4 144200 part 20. The part 20 forms a clamping shoulder 21 against the first part 17 of the sealing piece 16. Between the clamping shoulders 21 on the parts 17 and 20, wires 22 can be clamped arranged. In the holder 18 a wire connection can be arranged between the wires 22 and 23. The wires can be clamped in the holder 18. With a lateral construction, short wiring paths and a good sealing of the switch contacts towards the transformer space are obtained in connection with the described arrangement of the components.

Ledningen 23 er ført gennem en sumstrømtransformator 24 og elektrisk forbundet med den anden tilslutningsklemme 8a,The line 23 is passed through a sum current transformer 24 and electrically connected to the second connection terminal 8a,

Under afbryderhusets overdækninghætte 25 er i retning vinkelret pi tegningens plan foruden sumstrømtransformatoren 24 anbragt en udløser og en afbryderlis samt dele af prøveindretningen. For yderligere komponenter er der plads under tilslutningsklemmen 8a samt de tilgeænsende tilslutningklemmer. Pi basis 12 er udformet en kendt snapfastholdelse 31a til opsætning pi bæreskinnen.Under the cover cap 25 of the switch housing, in the direction perpendicular to the plane of the drawing, in addition to the sum current transformer 24, a trigger and a switch strip as well as parts of the test device are arranged. For additional components there is space under the connection terminal 8a as well as the adjacent connection terminals. A known snap retaining 31a is formed on the base 12 for mounting on the support rail.

Som det nærmere fremgår af fig. 2, danner overdækningshætten 25 en centreringsnæse 26, som griber ind mellem afbryderlisen 28's lejeplatiner 27. Afbryderlåsen 28 finder sin endelige stilling ved føring på centreringsnæsen 26. Derved sikres, at der mellem hindbetjeningsorganet 29 og afbryderhusets overdækningshætte trods stor tolerance ved formstofdele kun opstår små definerede spalter af tilladelig størrelsesorden.As can be seen in more detail from FIG. 2, the cover cap 25 forms a centering nose 26 which engages between the bearing plates 27 of the switch strip 28. The switch lock 28 finds its final position when guided on the centering nose 26. This ensures that only small defects occur between plastic parts 29 and the switch housing cover cap despite columns of permissible size.

Overdækningshætten 25 danner i udførelseseksemplet en fordybning 26 med en udsparing for håndbetjeningsorganet 29.In the exemplary embodiment, the cover cap 25 forms a recess 26 with a recess for the hand-operated means 29.

Prøvetasten 30 kan, som vist i fig. 3, udformes flad og kvadratisk. Tilslutningsklemmerne 8 og 8a er bestemt til tilslutning af midtpunklederen og af tre faseledere.The test key 30 can, as shown in fig. 3, is designed flat and square. The connection terminals 8 and 8a are intended for connecting the center point conductor and three phase conductors.

Den anden del af det todelte tætnings s tykke 16, delen 20, er i fig. 5 vist i større målestok end i fig. 1. Også denne del kan ved hjælp af rastfødder 31 ligesom den første del af tætningsstykket 16 indrastes efter indsætning i soklen. Rastfødderne 31 fremgår af fig. 7.The second part of the two-part seal s thick 16, the part 20, is in fig. 5 shown on a larger scale than in fig. This part can also be engraved by means of rest feet 31, like the first part of the sealing piece 16, after insertion into the base. The rest feet 31 are shown in fig. 7.

DK357178A 1977-09-02 1978-08-14 FAULT POWER PROTECTION SWITCH DK144200C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2739632 1977-09-02
DE2739632A DE2739632C2 (en) 1977-09-02 1977-09-02 Residual current circuit breaker

Publications (3)

Publication Number Publication Date
DK357178A DK357178A (en) 1979-03-03
DK144200B true DK144200B (en) 1982-01-11
DK144200C DK144200C (en) 1982-06-07

Family

ID=6017983

Family Applications (1)

Application Number Title Priority Date Filing Date
DK357178A DK144200C (en) 1977-09-02 1978-08-14 FAULT POWER PROTECTION SWITCH

Country Status (8)

Country Link
EP (1) EP0001058B1 (en)
JP (1) JPS5449571A (en)
AT (1) AT381185B (en)
DE (2) DE2739632C2 (en)
DK (1) DK144200C (en)
ES (1) ES473037A1 (en)
GR (1) GR71730B (en)
IT (1) IT1101054B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915091C2 (en) * 1979-04-12 1981-07-30 Siemens AG, 1000 Berlin und 8000 München Residual current circuit breaker
DE3446765A1 (en) * 1984-12-21 1986-07-10 Schupa Elektro GmbH + Co KG, 5885 Schalksmühle CONTACT SYSTEM FOR LIMITING THE ARC LENGTH IN A FAULT CURRENT CIRCUIT BREAKER
JP2685998B2 (en) * 1991-06-25 1997-12-08 松下電工株式会社 Earth leakage breaker
DE59103821D1 (en) * 1991-09-02 1995-01-19 Siemens Ag Residual current circuit breaker.
DE4312760A1 (en) * 1993-04-20 1994-10-27 Lust Electronic Systeme Gmbh Terminal with integrated current measurement
AT504608A1 (en) 2006-03-02 2008-06-15 Moeller Gebaeudeautomation Gmb SWITCHGEAR
FR2978885B1 (en) 2011-08-05 2015-11-13 Valeo Equip Electr Moteur CONNECTOR, CURRENT RECTIFIER DEVICE PROVIDED WITH SUCH A CONNECTOR AND ELECTRIC MACHINE EQUIPPED WITH SUCH A RECTIFIER DEVICE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1347629A (en) * 1963-02-20 1963-12-27 Siemens Ag Fault current circuit breaker
US3440579A (en) * 1967-06-19 1969-04-22 Gen Electric Electric circuit breaker with overcurrent and ground fault protection
US3539867A (en) * 1968-08-26 1970-11-10 Federal Pacific Electric Co Ground-fault protection systems
US3789268A (en) * 1972-12-29 1974-01-29 Gen Electric Miniature circuit breaker with electronic tripping means

Also Published As

Publication number Publication date
DE2860418D1 (en) 1981-02-26
DE2739632C2 (en) 1980-11-27
EP0001058B1 (en) 1981-01-07
GR71730B (en) 1983-06-22
ATA614378A (en) 1986-01-15
JPS5449571A (en) 1979-04-18
AT381185B (en) 1986-09-10
DK357178A (en) 1979-03-03
DE2739632B1 (en) 1978-11-30
DK144200C (en) 1982-06-07
EP0001058A1 (en) 1979-03-21
IT7827142A0 (en) 1978-08-30
IT1101054B (en) 1985-09-28
ES473037A1 (en) 1979-04-01

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