EP1163691B1 - Element de commutation etoile vers triangle - Google Patents

Element de commutation etoile vers triangle Download PDF

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Publication number
EP1163691B1
EP1163691B1 EP00923058A EP00923058A EP1163691B1 EP 1163691 B1 EP1163691 B1 EP 1163691B1 EP 00923058 A EP00923058 A EP 00923058A EP 00923058 A EP00923058 A EP 00923058A EP 1163691 B1 EP1163691 B1 EP 1163691B1
Authority
EP
European Patent Office
Prior art keywords
star
switching element
per
triangle switching
mobile
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
EP00923058A
Other languages
German (de)
English (en)
Other versions
EP1163691A1 (fr
Inventor
Alojz Lovrencic
Joze Pihler
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.)
Vitalner Sport d o o
Original Assignee
Vitalner Sport d o o
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Filing date
Publication date
Application filed by Vitalner Sport d o o filed Critical Vitalner Sport d o o
Publication of EP1163691A1 publication Critical patent/EP1163691A1/fr
Application granted granted Critical
Publication of EP1163691B1 publication Critical patent/EP1163691B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/12—Armature is movable between two limit positions of rest and is moved in both directions due to the energisation of one or the other of two electromagnets without the storage of energy to effect the return movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/005—Inversing contactors

Definitions

  • the invention refers to the star-to-triangle switching element according to the preamble of claim 1, as for example known from WO-A-9601486.
  • the star-to-triangle switching element according to the invention allows for switch-on, start-up and operation of asynchronous electromotors and successfully replaces the existing versions of contactor combinations for control of asynchronous motors with the power exceeding 4kW.
  • the invention is classified into class H 01 H and/or precisely into class H01 H 03/46 of the international patent classification.
  • the technical problem successfully solved by the invention in question involves the design and the construction of such switching element that will allow for successful replacement of a combination of several contactor elements, in particular in those applications where one element may replace a combination of two or three contactors, such as required in the existing solutions and constituting an assembly where the power and the control sections between the contactors must be correctly wire-connected, unless the assembly may be damaged or even destroyed.
  • the constructional concept of the switching element referred to in this invention provides for three independent positions, which is via the transmission elements transmitted into the contact section where the mobile support of flexible contacts with its movement closes the corresponding contacts, which first provides for electromotor power supply - star (Y) - with reverse connection to the star point, and upon the lapse of certain time, for power supply - triangle (D) - which corresponds to the rated voltage of the electromotor winding, double-step start-up Y - D.
  • the contact system provides smooth operation and significantly simplifies the traditional contactor combinations through the use of three contactors and a time-switch relay.
  • the switching time is adjustable and depends on the load driven by the electromotor, while the starter position is signalized.
  • the star-to-triangle switching element such as referred to in this invention, will be explained in detail on the basis of the concrete example and the corresponding figures, showing the following:
  • the driving element consists of two fixed armatures 1 and one mobile armature 2.
  • the fixed armatures 1 bear, attached with special loops 3, the coils 4,5, each of them in the make state representing one make state of the switching element referred to in this invention.
  • Suspended between them is the armature 2 in the form of letter E; it moves along lateral metal guides 6 that at the same time provide for adequate spacing of the fixed armatures 1.
  • the mobile armature 2 in the break state of the coils 4, 5 is idle, which represents the third, off position of the element.
  • the mobile armature 2 transmits the force over a steel support 7 and over a transmission lever 8 to the mobile support 9 of the flexible contacts 10, 11, 12 in the contact section of the switching element.
  • the input fixed contacts L1, L2, L3 are located on one side of the switching element, and the output fixed contacts U1, V1, W1 and U2, V2, W2 on the other side, which corresponds to the marking of the electromotor connection plate.
  • the contacts are covered by two insulation covers 31 with openings for connection wires.
  • the mobile support 9 bearing the contacts 10, 11 12 moves to position a.
  • the load current flows from the input fixed contacts L1, L2, L3 via the mobile contacts 11 to the output fixed contacts U1, V1, W1 and through the wires to the electromotor winding.
  • the ends of the winding are connected to the fixed contacts U2, V2, W2, where the star-point 13 is closed via the mobile contacts 10.
  • the electromotor winding is supplied with the voltage 230 V (Y) and the motor rotor achieves 2/3 rated rotations.
  • the star-point 13 opens and the current flows via the flexible contacts 11, 12 and permanent contacts U1, V1, W1 and U2, V2, W2 into the electromotor winding.
  • the electromotor winding is supplied with 400 V (D) voltage, which is the electromotor winding rated voltage, the rotor achieves rated rotations and accordingly provides permanent operation.
  • the star-to-triangle switching element is controlled as every traditional contactor, either only with the switch 01 or via the ON/OFF key of the existing remote switch; it can be mounted on a standard carrier strip or fixed with screws.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of El Displays (AREA)
  • Semiconductor Lasers (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

L'invention concerne un élément de commutation étoile vers triangle qui permet de démarrer, d'allumer et de faire fonctionner des moteurs électriques asynchornes, et de remplacer successivement des versions existantes de combinaisons de contacteurs destinées à commander lesdits moteurs dont la puissance supérieure à 4 kW ne limite toutefois pas leur utilisation. Le concept de construction de l'élément de commutation de cette invention présente trois positions indépendantes, qui sont transmises par le biais des éléments de transmission dans la section de contact, où le support mobile des contacts flexibles avec son mouvement ferme les contacts correspondants, ce qui dans un premier temps, fournit une alimentation électrique étoile- (Y) au moteur électrique avec une connexion inverse vers le point étoile, et après un certain laps de temps, une alimentation électrique en triangle (D). Ceci est réalisé de telle manière que l'élément d'entraînement comprend deux armatures (1) fixes raccordées à des boucles spéciales (3), des bobines (4, 5) séparées par des plaques d'écartement (6) qui servent à la fois de guide d'armature de joint (2) dont l'ouverture (c) où se fixe le support métallique mobile (7), est placée de façon que l'armature (2) est limitée dans son mouvement.

Claims (8)

  1. Commutateur étoile-triangle dans lequel la partie d'entraínement comprend deux armatures fixes (1) qui supportent des bobines (4, 5) fixées au moyen de supports spéciaux (3), caractérisé en ce que ces armatures sont séparées par une plaque d'écartement (6) qui sert en même temps de guide à une armature commune (2), avec une ouverture (c) à laquelle le support métallique mobile correspond de telle manière que les mouvements de l'armature (2) soient limités.
  2. Commutateur étoile-triangle selon la première revendication, caractérisé en ce qu'un support métallique mobile (7) se déplace verticalement le long des rainures de l'enveloppe (32) et que sa partie inférieure (14) est conçue pour le montage de la tête ronde (15) d'un levier de transmission (8).
  3. Commutateur étoile-triangle selon les revendications 1 et 2, caractérisé en ce que, lors du montage des carcasses des bobines (4, 5) sur l'armature (1), les deux supports amovibles (3) peuvent être bloqués par les deux saillies correspondantes (16) se trouvant sur les bobines (4, 5).
  4. Commutateur étoile-triangle selon les revendications 1 à 3, caractérisé en ce que le levier de transmission (8) est mobile grâce à la pièce centrale épaisse et ronde ( 17), qui se déplace dans un palier lisse semi-circulaire de l'enveloppe (18) ainsi que dans un palier lisse amovible (19), fixé au moyen d'une bague élastique d'acier à action brusque (20) dans la rainure de l'enveloppe, tandis que les deux têtes rondes (15, 21), sur les côtés du levier de transmission (8), permettent les mouvements verticaux des pièces mobiles et le décalage horizontal.
  5. Commutateur étoile-triangle selon les revendications 1 à 4, caractérisé en ce que le système de contact a deux positions de marche et une position de coupure, trois bornes d'entrée (L1, L2, L3) étant placées d'un côté et six bornes de sortie (U1, V1, W1, U2, V2, W2) de l'autre côté du commutateur, de telle manière que les contacts fixes doubles (22) sur deux lignes aient seulement un point de connexion commun (23) par phase.
  6. Commutateur étoile-triangle selon les revendications 1 à 5, caractérisé en ce que, en raison de leur double fonction, les contacts mobiles (11) sont montés entre des ressorts (24), et que le point neutre (13) est situé dans un compartiment isolant (25) de manière à couvrir les trois zones de phases (26), d'une manière qui est permise par la forme spéciale des contacts mobiles (10).
  7. Commutateur étoile-triangle selon les revendications 1 à 6, caractérisé en ce que la commande des bobines d'entraínement (4, 5) se fait, au moyen de fils posés le long du joint de la cloison porteuse (27), vers une partie des éléments de commande (28) et des bornes (29), tandis que la position neutre - ARRÊT - du commutateur est rendue active par des ressorts (33).
  8. Commutateur étoile-triangle selon les revendications 1 à 7, caractérisé en ce que le dessus (30) du commutateur fixe aussi les pièces idolantes de recouvrement latérales (31) des contacts fixes (L1, L2, L3 et U, V1, W1, U2, V2, W2) avec des ouvertures pour les bornes de puissance introduites dans des rainures correspondantes (32) de l'enveloppe.
EP00923058A 1999-03-24 2000-03-21 Element de commutation etoile vers triangle Expired - Lifetime EP1163691B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SI9900062A SI20293A (sl) 1999-03-24 1999-03-24 Preklopni element zvezda - trikot
SI9900062 1999-03-24
PCT/SI2000/000005 WO2000057444A1 (fr) 1999-03-24 2000-03-21 Element de commutation etoile vers triangle

Publications (2)

Publication Number Publication Date
EP1163691A1 EP1163691A1 (fr) 2001-12-19
EP1163691B1 true EP1163691B1 (fr) 2004-01-21

Family

ID=20432427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00923058A Expired - Lifetime EP1163691B1 (fr) 1999-03-24 2000-03-21 Element de commutation etoile vers triangle

Country Status (18)

Country Link
EP (1) EP1163691B1 (fr)
JP (1) JP2002540560A (fr)
CN (1) CN1350694A (fr)
AP (1) AP1312A (fr)
AT (1) ATE258335T1 (fr)
AU (1) AU4323900A (fr)
BG (1) BG64574B1 (fr)
CA (1) CA2367170A1 (fr)
DE (1) DE60007846T2 (fr)
EA (1) EA200100986A1 (fr)
HK (1) HK1044221A1 (fr)
HR (1) HRP20010698A2 (fr)
LT (1) LT4962B (fr)
LV (1) LV12800B (fr)
PL (1) PL349973A1 (fr)
SI (1) SI20293A (fr)
WO (1) WO2000057444A1 (fr)
YU (1) YU67801A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2983631B1 (fr) * 2011-12-06 2014-09-26 Schneider Electric Ind Sas Dispositif electrique d'entrainement en translation d'une piece, appareil de commutation electrique comportant un tel dispositif et inverseur triphase comprenant un tel appareil
DE102014105579A1 (de) 2014-04-17 2015-10-22 Eaton Electrical Ip Gmbh & Co. Kg Schaltvorrichtung für eine Stern-Dreieck-Umschaltung bei einem mehrphasigen Motor
CN105978406B (zh) * 2016-05-27 2018-06-01 天津加美特电气设备有限公司 三相交流电机星角转换启动器
DE202017103748U1 (de) 2017-06-23 2018-09-26 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung mit veränderlicher elektrischer Verbindung zwischen Leiteranschlüssen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1113500B (de) * 1959-04-25 1961-09-07 Starkstrom Schaltgeraetefabrik Elektrisches Schaltgeraet
FR2130030A1 (fr) * 1971-03-19 1972-11-03 Piret Daniel Double relais et inverseur integre en technologie electrique
SI9400271A (en) * 1994-07-04 1996-02-29 Alojz Lovrencic Electromagnetic relay

Also Published As

Publication number Publication date
WO2000057444A1 (fr) 2000-09-28
DE60007846T2 (de) 2004-12-30
AP1312A (en) 2004-09-30
AU4323900A (en) 2000-10-09
LT4962B (lt) 2002-10-25
EA200100986A1 (ru) 2002-02-28
DE60007846D1 (en) 2004-02-26
YU67801A (sh) 2006-08-17
EP1163691A1 (fr) 2001-12-19
JP2002540560A (ja) 2002-11-26
BG105935A (en) 2002-05-31
SI20293A (sl) 2000-12-31
AP2001002292A0 (en) 2001-12-31
HRP20010698A2 (en) 2003-06-30
ATE258335T1 (de) 2004-02-15
HK1044221A1 (zh) 2002-10-11
CA2367170A1 (fr) 2000-09-28
LV12800A (en) 2002-02-20
CN1350694A (zh) 2002-05-22
LT2001091A (en) 2002-05-27
LV12800B (lv) 2002-06-20
BG64574B1 (bg) 2005-07-29
PL349973A1 (en) 2002-10-21

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