EP1122758A2 - Déclencheur auxiliaire pour disjoncteur de puissance, de fuite à la terre et de protection de moteur - Google Patents

Déclencheur auxiliaire pour disjoncteur de puissance, de fuite à la terre et de protection de moteur Download PDF

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Publication number
EP1122758A2
EP1122758A2 EP00119425A EP00119425A EP1122758A2 EP 1122758 A2 EP1122758 A2 EP 1122758A2 EP 00119425 A EP00119425 A EP 00119425A EP 00119425 A EP00119425 A EP 00119425A EP 1122758 A2 EP1122758 A2 EP 1122758A2
Authority
EP
European Patent Office
Prior art keywords
release
undervoltage
auxiliary
housing
armature
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Withdrawn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
EP00119425A
Other languages
German (de)
English (en)
Other versions
EP1122758A3 (fr
Inventor
Peter Dipl.-Ing. c/o Heinrich Kopp AG Flohr
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Publication of EP1122758A2 publication Critical patent/EP1122758A2/fr
Publication of EP1122758A3 publication Critical patent/EP1122758A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • 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
    • H01H2083/208—Converting under voltage release [UVR] and shunt release
    • 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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • 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
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection

Definitions

  • the invention relates to an auxiliary current release for line, fault current and Motor protection switch, especially in industrial plants, with tripping by an electrical Signal or undervoltage, i.e. by a drop in a supply voltage below a certain value.
  • auxiliary current releases are required for control tasks.
  • Auxiliary release that by means of an electrical signal will also trigger a circuit breaker referred to as a shunt release, while for switching off the Circuit breaker when the supply voltage drops below a certain value so-called undervoltage releases are used.
  • the invention is accordingly based on the object of producing at low cost small auxiliary current releases of the type mentioned at the outset for use to make existing circuit breakers available.
  • the configuration of the auxiliary current release according to the invention enables that both the shunt release and the undervoltage release largely with Equipped with the same parts, even the solenoids are identical. It is advantageous the power requirement for the undervoltage release in the operating state is less than 0.5 W. For the electrical application of the swivel armature, 5 W are used for less ms needed. On the other hand, however, the effort for the previously known complicated is eliminated Mechanisms for manual creation.
  • auxiliary current releases according to the invention can advantageously be made small and need only half a division unit with their housing, i.e. half the width of the conventional circuit breaker, and the space requirement roughly corresponds to that of one Auxiliary switch. This spatial gain is for example in the distribution building of of extraordinary importance.
  • auxiliary current release according to the invention is also simple on site and can be mounted on the circuit breaker without preparation, that the above-mentioned costly storage, as in the prior art, clearly is reduced by space and effort.
  • auxiliary current releases according to the invention mainly consist of the same and simple parts and thus enable both in terms of production and Installation of a rational, inexpensive series production.
  • the triggering of the assigned Circuit breaker i.e. its unlatching is easy with a workload of approx. 1 N mm only achieved with an electromagnet, and for the working current and Undervoltage releases use the same parts.
  • both have that same housing, the same terminals, the same arrangement Swing lever armature, solenoid coil, driving swivel lever, armature spring, etc.
  • Swivel lever armature Due to the installation of the arrangement Swivel lever armature, magnetic coil and armature spring is advantageously ensured that the Swivel arm anchor of the electromagnet or the solenoid both when tightening as also performs a rotational movement in the same direction when falling and thus at the specified Tripping point of the circuit breaker on its pawl via a switch lock pin can act.
  • the electrical connection of the solenoid coil is made in both auxiliary current releases via one Auxiliary contact, which on the shunt release via the circuit breaker and Undervoltage release is controlled by the swivel lever armature.
  • additional control contacts can be used for both types of auxiliary current release be provided, for example, the switching state of the associated circuit breaker signal.
  • FIG. 1 A first exemplary embodiment of an auxiliary current release 10 according to the invention is shown in FIG schematically with the omission of the housing in front of a side housing 11 shown usual circuit breaker.
  • the shunt release 10 is, as shown in FIG. 2, in a housing 12 arranged, from the electrical terminals 13 and 14th protrude and the side with spring clips 15 on the front and rear Narrow side is connected to the circuit breaker 11.
  • the shunt release has an arrangement of a Magnetic coil 16, a rocker armature 17 and an armature spring 18, the Armature spring 18 engages and engages an engagement section 19 of the pivot lever armature 17 its other end on a support section 20 for the solenoid 16 under tension is hung.
  • a pivot linkage of the pivot lever armature 17 is shown schematically indicated on a holder 22 for the magnet coil 16.
  • the terminal 14 is connected to one end of the magnet coil 16 via an electrical line 24 connected, while the other end of the magnet coil 16 via a line 25 with a Auxiliary contact 26 and from there via a resistor 27 to the other terminal 13 connected is.
  • the pivot lever armature 17 has an actuating section 28 which is connected to a lateral one Pin 30 of a driving pivot lever 29 attacks, which in turn with a opposite pins in a side pivot opening of the circuit breaker 11 for unlatching the circuit breaker 11 when the pivoting lever 29 is pivoted intervenes.
  • the pivot lever 29 also has an angled actuation end 31 for the opening of the auxiliary contact 26 when pivoting the pivot lever 29.
  • the housing 12 of the auxiliary current release 10 has a width t / 2, which is approximately half the width t of the housing of the associated circuit breaker 11.
  • the shunt release 10 is triggered by a trigger signal in the solenoid 16 causes a current flow of about 20 mA.
  • the pivot lever armature 17th tightened and unlatched via the driving swivel lever 29 the switching lock of the flanged circuit breaker 11, which thereby triggers.
  • the Driving pivot lever 29, the auxiliary contact 26 in via its actuating end 31 Opening direction, whereby the current flow to the magnet coil 16 is interrupted.
  • intrinsic safety of solenoid 16 is achieved and actuation when switched off Circuit breaker excluded.
  • FIG. 3 shows an embodiment of the auxiliary current release as undervoltage release 10 ' shown schematically, whereby evidently numerous components are used, which also can be used for the shunt release 10 shown in FIG. 1.
  • the terminal 13 is on a line 25 'connected to one end of the coil winding of the coil 16 while the other End of the coil winding via a resistor 27 'and 27 "and the line 24' with the Terminal 14 is connected.
  • the auxiliary contact 26 ' is normally by a Actuating lug 33 on the pivot lever anchor 17 is kept open when the pivot lever anchor 17 is in its non-triggered position on the solenoid 16.
  • At 34 is one Actuating section on the pivot armature 17 referred to the Actuating section 28 is formed opposite the other end and at one Pin 30 of the driving pivot lever 29 abuts.
  • the driving pivot lever 29 engages in turn, like the lever 29 in Fig. 1, via a pin 36 in the side accessible switch lock of the flanged circuit breaker 11 to the intended Unlatching the same, as indicated by dashed lines in Fig. 4.
  • At 35 the case is fixed Designated pivot axis of the driving pivot lever 29.
  • Fig. 3 shows the starting position of the undervoltage release 10 ', in which the switch lock of the flanged circuit breaker 11 is not released. Now the one at terminals 13 drops and 14 applied supply voltage to a prescribed value, the tightened lever arm 17 by the armature spring 18 in a counterclockwise direction Swiveling around the linkage 21 pulled away from the magnet coil 16. This will the switch lock of the circuit breaker 11 via the pin 36 of the driving pivot lever 29, actuated by the actuating section 34 of the pivot lever armature 17, in the same way unlatched as described in Fig. 1. The circuit breaker 11 is then turned off, and the Auxiliary contact 26 'closed, which is connected in parallel to the resistor 27 ".
  • the pivot armature 17 With recurring voltage, the pivot armature 17 is caused by a current flow of about 20 mA attracted in the solenoid 16, while simultaneously opening the Auxiliary contact 26 'and the then effective resistor 27 "a reduction in Current flow in the magnetic coil 16 to about 2 mA. This is enough for the To keep pivot lever armature 17 tightened, after which the circuit breaker is now manual can be switched on and put into operation.

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  • Breakers (AREA)
EP00119425A 2000-02-03 2000-09-13 Déclencheur auxiliaire pour disjoncteur de puissance, de fuite à la terre et de protection de moteur Withdrawn EP1122758A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10004597 2000-02-03
DE2000104597 DE10004597A1 (de) 2000-02-03 2000-02-03 Hilfsstromauslöser für Leitungs-, Fehlerstrom- und Motorschutzschalter

Publications (2)

Publication Number Publication Date
EP1122758A2 true EP1122758A2 (fr) 2001-08-08
EP1122758A3 EP1122758A3 (fr) 2003-05-28

Family

ID=7629612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119425A Withdrawn EP1122758A3 (fr) 2000-02-03 2000-09-13 Déclencheur auxiliaire pour disjoncteur de puissance, de fuite à la terre et de protection de moteur

Country Status (2)

Country Link
EP (1) EP1122758A3 (fr)
DE (1) DE10004597A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008034398A1 (fr) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Déclencheur auxiliaire pour commutateur de puissance
EP3859763A1 (fr) * 2020-01-30 2021-08-04 ABB Schweiz AG Dispositif de surveillance de tension

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009025519B4 (de) 2009-06-19 2017-02-16 Eaton Industries Gmbh Auslöser für ein elektrisches Schaltgerät
CN106571275B (zh) * 2016-11-10 2019-12-24 北京双杰电气股份有限公司 一种欠压脱扣机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256407A (en) * 1963-10-28 1966-06-14 Gen Electric Circuit breaker and accessory device combination
US4246558A (en) * 1979-01-22 1981-01-20 Gould Inc. Auxiliary feature modules for circuit breakers
GB1599037A (en) * 1978-05-12 1981-09-30 Dorman Smith Switchgear Ltd Circuit breaker accessory
FR2637121A1 (fr) * 1988-09-27 1990-03-30 Merlin Gerin Declencheur auxiliaire a electro-aimant reversible pour disjoncteur
DE4242162A1 (de) * 1992-12-15 1994-06-16 Oppach Schaltelektronik Wahlweise als Unterspannungs- oder Arbeitsstromauslöser umrüstbarer Zusatzbaustein, insbesondere für Niederspannungs-Schutzschalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256407A (en) * 1963-10-28 1966-06-14 Gen Electric Circuit breaker and accessory device combination
GB1599037A (en) * 1978-05-12 1981-09-30 Dorman Smith Switchgear Ltd Circuit breaker accessory
US4246558A (en) * 1979-01-22 1981-01-20 Gould Inc. Auxiliary feature modules for circuit breakers
FR2637121A1 (fr) * 1988-09-27 1990-03-30 Merlin Gerin Declencheur auxiliaire a electro-aimant reversible pour disjoncteur
DE4242162A1 (de) * 1992-12-15 1994-06-16 Oppach Schaltelektronik Wahlweise als Unterspannungs- oder Arbeitsstromauslöser umrüstbarer Zusatzbaustein, insbesondere für Niederspannungs-Schutzschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008034398A1 (fr) * 2006-09-21 2008-03-27 Siemens Aktiengesellschaft Déclencheur auxiliaire pour commutateur de puissance
EP3859763A1 (fr) * 2020-01-30 2021-08-04 ABB Schweiz AG Dispositif de surveillance de tension

Also Published As

Publication number Publication date
DE10004597A1 (de) 2001-08-09
EP1122758A3 (fr) 2003-05-28

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