EP1229565A2 - Procédé pour ajuster un déclencheur thermique d'un appareil de commutation électrique, en particulier un contacteur - Google Patents

Procédé pour ajuster un déclencheur thermique d'un appareil de commutation électrique, en particulier un contacteur Download PDF

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Publication number
EP1229565A2
EP1229565A2 EP02000935A EP02000935A EP1229565A2 EP 1229565 A2 EP1229565 A2 EP 1229565A2 EP 02000935 A EP02000935 A EP 02000935A EP 02000935 A EP02000935 A EP 02000935A EP 1229565 A2 EP1229565 A2 EP 1229565A2
Authority
EP
European Patent Office
Prior art keywords
adjusting
release
switching device
der
transmission elements
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.)
Granted
Application number
EP02000935A
Other languages
German (de)
English (en)
Other versions
EP1229565A3 (fr
EP1229565B1 (fr
Inventor
Corell Dipl.-Ing. Göbel
Guido Dipl.-Ing. Niewöhner
Ralf Dipl.-Ing. Müller
Georgi Dipl.-Ing. Cwetanski
Jörg Ing. Stamm
Theo Thelen
Alois Becker
David Giedke
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.)
ABB AG Germany
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1229565A2 publication Critical patent/EP1229565A2/fr
Publication of EP1229565A3 publication Critical patent/EP1229565A3/fr
Application granted granted Critical
Publication of EP1229565B1 publication Critical patent/EP1229565B1/fr
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
    • 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
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7427—Adjusting only the electrothermal mechanism
    • H01H71/7445—Poly-phase adjustment
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/145—Electrothermal mechanisms using shape memory materials

Definitions

  • the invention relates to a method for adjusting the thermal release system of an electrical switching device, in particular a motor protection switch according to the preamble of claim 1.
  • the object of the invention is a method for adjusting the thermal triggers to create electrical switching device that is easier compared to known methods and is more precise.
  • the single figure shows a schematic representation of a triggering system Thermostatic bimetals.
  • An electrical motor protection switch which is known per se and is not described in detail here is, has three parallel bimetals 10, 11 and 12, each are assigned to a phase. If an overcurrent occurs, the bimetals bend 10, 11 and 12 and actuate a lever 15 via slide 13 and 14, which acts on a transmission element 16 of a switch lock, not shown, so that a latching point located there is opened and the network conductors assigned contact points are opened permanently.
  • a switch lock not shown
  • the slider 14 has an elongated flat portion 21 on which is perpendicular for this purpose L-shaped projections 22, 23, and 24 are formed, the free legs 25 to 27 lie in a line and project in the same direction.
  • the slide 13 also has an elongated section 28, on which also L-shaped sections 29, 30 and 31 are formed, the free leg ends 32 to 34 also project in one direction, whereby in the assembled state, as from the Figure shows the leg ends 25, 32; 26; 33; 27, 34 each in opposite Project directions and the thermal bimetal 10, 11 and 12 between them take and concern with this.
  • the transmission lever or release lever 15 is perpendicular to the elongated Sections 21 and 28 and is on both the slider 13 and the slider 14 pivoted.
  • the slides 13 and 14 are manufactured individually as follows:
  • the bimetallic metals 10 to 12 are brought into position by heating with electricity brought, which corresponds to the position that the bimetals occupy, if that finished device should trigger in operation.
  • This position can be achieved by heating Current of different heights take place over different time intervals.
  • the bimetals 10 to 12 finally assume a defined position and this Position is no longer significantly changed over a reasonable period.
  • the trigger mechanism is brought into the release position.
  • the measurement of the bimetals can be done without contact or take place by touch, the latter having the advantage that in the later Use of the force to be overcome by the bimetallic elements to unlatch the key switch To take into account. In this case, the measuring system should have approximately the same force exert on bimetals 10 to 12 like the key switch.
  • the slides 13 and 14 are manufactured, whereby in particular the length of the legs 25, 32; 26, 33; 27, 34 set accordingly and is manufactured accordingly. After the manufacture of the slider 13 and 14, these are used together with the transmission lever 15 in the switching device.
  • the bimetals are further heated by heating them with a suitable current Position held and then the switching device by turning the adjusting knob 17 to Triggered brought in by moving the plunger 19 from the cam surface 18.
  • the position of this setting button at the time of triggering is shown on a nominal current scale matched on the housing of the switching device. there the nominal current scale is rotated around the pivot point of the adjusting knob 17.
  • the Phase failure levers 15 are two pins, each pin in the hole a slide 13, 14 engages. This is not shown in the drawing.
  • the bimetals are expediently measured at the lower nominal current.
  • the eccentric cam surface 18 should then be mounted before the transmission mechanism is assembled with the two sliders 13 and 14 by a few degrees in the direction of the upper one Nominal current can be rotated, which makes assembly and subsequent tripping easier by turning the adjusting knob during the last stage of the adjustment process allows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Breakers (AREA)
  • Thermally Actuated Switches (AREA)
EP20020000935 2001-02-03 2002-01-16 Procédé pour ajuster un déclencheur thermique d'un appareil de commutation électrique, en particulier un contacteur Expired - Lifetime EP1229565B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10104901 2001-02-03
DE2001104901 DE10104901A1 (de) 2001-02-03 2001-02-03 Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters

Publications (3)

Publication Number Publication Date
EP1229565A2 true EP1229565A2 (fr) 2002-08-07
EP1229565A3 EP1229565A3 (fr) 2004-04-21
EP1229565B1 EP1229565B1 (fr) 2009-11-11

Family

ID=7672748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020000935 Expired - Lifetime EP1229565B1 (fr) 2001-02-03 2002-01-16 Procédé pour ajuster un déclencheur thermique d'un appareil de commutation électrique, en particulier un contacteur

Country Status (2)

Country Link
EP (1) EP1229565B1 (fr)
DE (2) DE10104901A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005104160A1 (fr) * 2004-04-23 2005-11-03 Siemens Aktiengesellschaft Declencheur de surcharge et procede de reglage de ce dernier
EP2023367A2 (fr) 2007-08-07 2009-02-11 LS Industrial Systems Co., Ltd Procédé de réglage de sensibilité de déclenchement d'un appareil de protection contre les surcharges thermiques

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE359401B (fr) * 1971-12-28 1973-08-27 Asea Ab
DE3732469A1 (de) * 1987-09-23 1989-04-06 Siemens Ag Verfahren zum justieren eines bimetallausloesers
DE19548479C2 (de) * 1995-12-22 1999-09-02 Siemens Ag Thermisches Auslösesystem
DE19619295C2 (de) * 1996-05-13 2003-10-23 Siemens Ag Justierverfahren für thermische Überlastauslöser
CN1071050C (zh) * 1996-09-30 2001-09-12 西门子公司 热过载断路器的调节方法和装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005104160A1 (fr) * 2004-04-23 2005-11-03 Siemens Aktiengesellschaft Declencheur de surcharge et procede de reglage de ce dernier
EP2023367A2 (fr) 2007-08-07 2009-02-11 LS Industrial Systems Co., Ltd Procédé de réglage de sensibilité de déclenchement d'un appareil de protection contre les surcharges thermiques
EP2023367A3 (fr) * 2007-08-07 2009-12-02 LS Industrial Systems Co., Ltd Procédé de réglage de sensibilité de déclenchement d'un appareil de protection contre les surcharges thermiques
US7821376B2 (en) 2007-08-07 2010-10-26 Ls Industrial Systems Co., Ltd. Method for adjusting trip sensitivity of thermal overload protection apparatus

Also Published As

Publication number Publication date
DE50213981D1 (de) 2009-12-24
EP1229565A3 (fr) 2004-04-21
DE10104901A1 (de) 2002-08-08
EP1229565B1 (fr) 2009-11-11

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