EP0898781B1 - Justierverfahren für thermische überlastauslöser - Google Patents

Justierverfahren für thermische überlastauslöser Download PDF

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Publication number
EP0898781B1
EP0898781B1 EP97923776A EP97923776A EP0898781B1 EP 0898781 B1 EP0898781 B1 EP 0898781B1 EP 97923776 A EP97923776 A EP 97923776A EP 97923776 A EP97923776 A EP 97923776A EP 0898781 B1 EP0898781 B1 EP 0898781B1
Authority
EP
European Patent Office
Prior art keywords
release
adjusting
distance
residual
thermal overload
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 - Lifetime
Application number
EP97923776A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0898781A1 (de
Inventor
Peter Hartinger
Frank Scholle
Paul Wied
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
Publication of EP0898781A1 publication Critical patent/EP0898781A1/de
Application granted granted Critical
Publication of EP0898781B1 publication Critical patent/EP0898781B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H83/223—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 bimetal elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions

Definitions

  • the invention relates to adjustment methods for thermal Overload release with bimetal strips, with a tap system and with a trigger mechanism that a Has adjusting device, the position of the first Bimetallic strip is adapted to the tap system and one Pre-adjustment of the trigger mechanism by setting a predetermined trigger distance is made before the A certain current can be applied to the bimetal strip.
  • a generic adjustment method for a thermal Overload release with bimetal strips, with a tap system and with a trigger mechanism, the adjustment device has already been known from FR-A-266 79 79.
  • the position of the bimetallic strips is shown first adapted the tap system and a pre-adjustment of the trigger mechanism by setting a predetermined trigger distance made before the bimetallic strips with a certain current can be applied.
  • the effective deflection of the bimetal strips depends on several Influencing factors, e.g. the current path resistance of the thermal overload release, the specific deflection the bimetallic strip, the release force and suspension of the mechanical Systems etc. It results for everyone Protection device individual bends.
  • FIG. 2 shows a schematic diagram of a known thermal Overload release.
  • This contains three bimetal strips 1, a mechanical tap system 2 and a trigger mechanism 3 with a compensation strip and with an adjustment device 5.
  • This deflection path is called the distance y between the bimetal strip and the mechanical switch-off point of the trigger mechanism set (pre-adjustment) after the position of the bimetal strips adapted to the tapping system was (synchronization).
  • the trigger time the thermal overload release at a certain current measured. If the trigger time is outside of a specified one Time window determined by the current response limits the distance must be corrected depending on the time deviation. After the protective device has cooled to ambient temperature the tripping time measurement is repeated.
  • the invention has for its object the above Adjustment procedure to improve in such a way that taking into account the individual bend the prescribed Response limits can be met without having to repeat tests and thus the time-consuming cooling down to to the ambient temperature are necessary.
  • the first object is achieved in that the release distance is such that after deflection the bimetal strip due to the current load for one predetermined duration of the trigger mechanism at the end of this Duration not yet triggers, but a residual trigger distance ⁇ y is present at the end of the duration by a device to zero, i.e. reduced until the trigger mechanism is triggered becomes.
  • the invention is based on a known overload release explained according to FIG 2, already at the assessment of the prior art described in the introduction to the description has been.
  • the device 7 according to FIG. 3 has to reduce the Residual trigger distance ⁇ y a drive, e.g. a stepper motor or a linear motor which is connected via coupling means 8 the adjusting device 5 of the trigger mechanism 3 with this can be mechanically linked.
  • the drive is expected values with regard to its speed of the residual trigger distance ⁇ y adjusted such that on the one hand whose reduction to zero can be reached quickly, whereby a rapid braking to zero speed at the moment must be ensured by triggering or the angle of rotation error can be corrected.
  • the drive can be used, for example, via a gear wheel 8 as a coupling means be coupled to the adjustment device 5.
  • the adjustment procedure is for all devices with thermal Overload releases that apply the current in a proportional Form the path and convert it to a mechanical system let it work.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermally Actuated Switches (AREA)
  • Fuses (AREA)
EP97923776A 1996-05-13 1997-04-30 Justierverfahren für thermische überlastauslöser Expired - Lifetime EP0898781B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19619295 1996-05-13
DE19619295A DE19619295C2 (de) 1996-05-13 1996-05-13 Justierverfahren für thermische Überlastauslöser
PCT/DE1997/000891 WO1997043779A1 (de) 1996-05-13 1997-04-30 Justierverfahren für thermische überlastauslöser

Publications (2)

Publication Number Publication Date
EP0898781A1 EP0898781A1 (de) 1999-03-03
EP0898781B1 true EP0898781B1 (de) 2000-02-23

Family

ID=7794210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97923776A Expired - Lifetime EP0898781B1 (de) 1996-05-13 1997-04-30 Justierverfahren für thermische überlastauslöser

Country Status (5)

Country Link
US (1) US6028757A (zh)
EP (1) EP0898781B1 (zh)
CN (1) CN1060880C (zh)
DE (2) DE19619295C2 (zh)
WO (1) WO1997043779A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104901A1 (de) * 2001-02-03 2002-08-08 Abb Patent Gmbh Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters
DE10327379A1 (de) * 2003-06-18 2005-01-05 Abb Patent Gmbh Justiereinrichtung zur Einstellung von bestimmten Auslösebedingungen für einen thermischen oder elektromagnetischen Auslöser
DE112004002905A5 (de) * 2004-04-23 2007-05-24 Siemens Ag Überlastauslöser und Justierverfahren für denselben
KR100881365B1 (ko) 2007-08-07 2009-02-02 엘에스산전 주식회사 열동형 과부하 보호장치의 트립 감도 조정 방법
CN113125950B (zh) * 2021-04-29 2023-04-14 上海西门子线路保护系统有限公司 断路器双金属片的调节测试方法和装置
CN115184786B (zh) * 2022-06-23 2023-06-20 上海西门子线路保护系统有限公司 断路器的双金属片的调节测试方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543460A (zh) * 1954-12-23
US3700964A (en) * 1970-09-22 1972-10-24 Thomas Moore Motor overload protector and voltage cut-out device
JPS5198239A (en) * 1975-02-24 1976-08-30 Kojundo 4*4** jihidorokishijifuenirusurupponnoseizoho
FR2536906A1 (fr) * 1982-11-25 1984-06-01 Telemecanique Electrique Relais thermique a reenclenchement automatique ajustable
DE3401901A1 (de) * 1984-01-20 1985-08-01 Brown, Boveri & Cie Ag, 6800 Mannheim Thermisches ueberstromrelais mit justierexzenter
DE3435228A1 (de) * 1984-09-26 1986-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bimetallausloeser
DE3917327A1 (de) * 1989-05-27 1990-11-29 Licentia Gmbh Selbstschalter, insbesondere leitungsschutzschalter
FR2667979B1 (fr) * 1990-10-11 1994-04-01 Telemecanique Declencheur thermique differentiel a bilames.
FR2746542B1 (fr) * 1996-03-20 1998-04-24 Schneider Electric Sa Declencheur thermique differentiel a bilames

Also Published As

Publication number Publication date
DE19619295C2 (de) 2003-10-23
DE19619295A1 (de) 1997-11-20
EP0898781A1 (de) 1999-03-03
WO1997043779A1 (de) 1997-11-20
CN1060880C (zh) 2001-01-17
CN1219278A (zh) 1999-06-09
DE59701151D1 (de) 2000-03-30
US6028757A (en) 2000-02-22

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