EP0833357A2 - Justierverfahren für thermische Überlastauslöser - Google Patents
Justierverfahren für thermische Überlastauslöser Download PDFInfo
- Publication number
- EP0833357A2 EP0833357A2 EP97116108A EP97116108A EP0833357A2 EP 0833357 A2 EP0833357 A2 EP 0833357A2 EP 97116108 A EP97116108 A EP 97116108A EP 97116108 A EP97116108 A EP 97116108A EP 0833357 A2 EP0833357 A2 EP 0833357A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- scale
- adjustment
- current setting
- movement
- distance
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000008859 change Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
- 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 an adjustment method for a thermal overload release with a number of bimetal strips in a mechanical tap system that under formation a trigger distance with a trigger mechanism in Operational connection is made, with a rotary or linear movement in a change in distance is implemented. It continues to refer on a corresponding adjustment device for a thermal Overload release.
- a protection device with a time delayed overload or Overcurrent release must according to regulation, z. B. according to the standard IEC 947-2 and IEC 947-4-1, within certain response limits trigger. Thereafter, with a load of 1.2 times Setting current tripping within two hours take place while at a load of 1.05 times Set current within a two-hour current load period no triggering may take place.
- a device with a Such thermal overload release is usually by converting the electricity to the heat of electricity into a bend in a number of bimetallic strips as well by adjusting a mechanical system with respect to reached this bimetallic strip, the mechanical system a step function, e.g. B. in the form of a dead center spring or a latch.
- the effective deflection depends on this the bimetal strip from various influencing factors from, e.g. B. the current resistance of the thermal overload release, the specific deflection of the bimetal strips and the release force and the suspension of the mechanical Systems. This results in individual protection devices Bends.
- For adjustment and tripping current setting of the protective device are adjusted by means of an adjusting device between a mechanical Tap system with the bimetal strips and a trigger mechanism determined with a mechanical switch-off point Clearances set.
- the adjustability of the distance is on the one hand for that taking place at a certain electricity brand Adjustment of the protective device required, as dependent of the respective current value and the associated Bending of the bimetal strips requires a certain distance is.
- Adjustment of the protective device required, as dependent of the respective current value and the associated Bending of the bimetal strips requires a certain distance is.
- different distances can be set, in each case additionally compensating for manufacturing-related tolerances are.
- the invention has for its object an adjustment method of the type mentioned at the outset that both a Setting different trigger currents as well Tolerance compensation in a particularly reliable and simple Way. This is said to be the case with one to carry out the Procedure particularly suitable adjustment device with simple Funds can be achieved.
- the trigger distance can be achieved by implementing a rotary movement or a linear movement can be set by both a current setting as well as a tolerance compensation within a usable scale angle or scale path.
- the entire usable range of motion is only two merging, d. H. adjoining sections divided.
- the tolerance compensation takes place exclusively in one of the sub-areas while adjusting the current only in the other area. An intervention in the current setting range during tolerance compensation is thus safely avoided, so that readjustment for a calibration of the current setting range is no longer required.
- the invention is based on the consideration that a particularly simple and reliable current setting as well a particularly simple and reliable tolerance compensation can be achieved if the necessary changes in distance from a suitable utilization of one in one corresponding stroke resulting movement takes place. This in turn can be achieved if the total usable Movement area is divided into only two sections. This allows movement within the range Tolerance compensation along the slope surface Movement can only be done in one direction while a current setting then by moving only in the other direction he follows.
- the adjustment device comprises a compensating element, that both a basic adjustment and thus a tolerance compensation of the protective device as well as a setting of a tripping current with the same and therefore with a single component enables.
- a compensation element for changing the Distance between the bimetal strips and a mechanical one Switch-off point within the entire mechanical system expediently provided a rotary knob with an eccentric, whose effective range of rotation is the usable scale angle defined as the scale range.
- a screw thread or a screw thread can be provided as a compensating element.
- the use of a worm thread enables implementation particularly large scale spreads, with the one Rotary motion generated stroke to change the distance to a corresponding one Number of revolutions can be distributed. Analogous the thread pitch can be changed when using a screw thread be adjusted accordingly.
- a thread trained compensation element can in any case especially large compared to the use of an eccentric Tolerance band can be compensated.
- the effective linear movement range defines the usable scale path as a scale range.
- the advantages achieved with the invention are in particular in that by defining a usable scale range with only two sections for a current setting on the one hand and for tolerance compensation on the other Distance change within a mechanical system between a number of bimetal strips and a mechanical one Switch-off point reached in a particularly simple manner becomes. This ensures reliable deflection compensation the bimetallic strip at different tripping currents guaranteed. There is only one adjustment step at a time or process required during tolerance compensation. The tolerance compensation follows automatically the entire current setting range is available the beginning of which is preferably by applying one of the Adjustment button for the marking line extending to the housing is identified.
- a thermal overload release according to FIG 1 comprises three bimetal strips 1 in a mechanical tap system 2 that to form a trigger distance y with a trigger mechanism 3 with a compensation strip 4 in operative connection stands.
- An adjusting device coupled to the trigger mechanism 3 5 is used to adjust the bending path or Distance y between the bimetallic strips 1 and a mechanical one Switch-off point 6 within the trigger mechanism 3.
- the Synchronization in a manner not shown the position of the bimetallic strips 1 on the mechanical tap system 2 adjusted.
- a subsequent basic or pre-adjustment serves to set a defined initial state, one representing the bending path of the bimetallic strip 1 Distance y between the tap system 2 and the compensation strip 4 of the trigger mechanism 3 and thus the mechanical switch-off point 6 by means of the adjusting device 5 is set.
- the operation of the adjustment device 5 is for an eccentric as a compensating element 9 illustrated in FIG 2.
- the compensating element 9 is used to implement a rotary movement in a stroke in the direction of arrow 8.
- Each required change ⁇ y of the trigger distance y between the Tap system 2 and the trigger mechanism 3 and thus between the bimetal strip 1 and the mechanical switch-off point 6 can be set.
- the (second) section b for a current setting lies between a start or fixed point 11 and an upper one Boundary mark 12. In the exemplary embodiment, this marks the one maximum point on the eccentric at which an upper mark of the Current setting is.
- the (first) section c is analogous limited by the fixed point 11 on the one hand and a lower one Limit mark 13 on the other hand. This in turn represents you minimum point on the eccentric at which a lower mark of the Current setting is.
- the starting point 11 is at the adjustment selected and lies between the two subareas b and c. From there, a position in the sub-area is created c set by rotating in the corresponding direction. This is the case with the eccentric position shown in FIG a rotation to the right, i.e. clockwise.
- the compensating element 9 comprises one with a Rotary knob 10 'provided screw 14, the required Stroke for changing the distance y to several revolutions divides.
- a division of the required stroke into a number of turns is also achieved by using a 4 achieved as a compensating element 9.
- the available range of rotation and thus the usable scale angle a compared to the eccentric as a compensating element 9 particularly large.
- a corresponding division of a usable scale path a ' in a first section c 'for tolerance compensation and in a second section b 'for a tripping current setting during an adjustment the same applies to the in 5 and 6 shown compensating elements 9 '.
- a lever 16 is provided for changing the triggering distance y.
- the sub-area b 'for a current setting is in turn between a start or fixed point 11 'and an upper one Limit mark 12 '.
- the sub-area c ' is similarly limited by the fixed point 11 'on the one hand and a lower limit mark 13' on the other hand.
Landscapes
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
- FIG 1
- eine Prinzipdarstellung eines Überlastauslösers mit einer Justiereinrichtung,
- FIG 2
- schematisch die Justiereinrichtung mit einer Aufteilung eines Skalenwinkels am Beispiel eines Exzenters als Auslöseelement,
- FIG 3 und 4
- im Ausschnitt III bzw. IV aus Figur 1 alternative Ausführungsformen des Auslöseelements gemäß FIG 2, und
- FIG 5 und 6
- schematisch die Justiereinrichtung mit einer Aufteilung eines Skalenweges am Beispiel eines Hebels als Auslöseelement.
Claims (9)
- Justierverfahren für einen thermischen Überlastauslöser mit einer Anzahl von Bimetallstreifen (1) in einem mechanischen Abgriffsystem (2), das unter Bildung eines Auslöseabstands (y) mit einem Auslösemechanismus (3) in Wirkverbindung steht, bei dem innerhalb eines Skalenbereichs (a,a') eine Drehbewegung oder eine Linearbewegung in eine Abstandsänderung (Δy) umgesetzt wird, dadurch gekennzeichnet, daß ein Toleranzausgleich durch Bewegung lediglich in eine Richtung und innerhalb eines ersten Teilbereichs (c,c') des Skalenwinkels (a,a') erfolgt, und daß eine Stromeinstellung durch Bewegung lediglich in die andere Richtung und innerhalb eines zweiten Teilbereichs (b,b') des Skalenbereichs (a,a') erfolgt.
- Justierverfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß innerhalb des Skalenbereichs (a, a') zwischen einer oberen Grenzmarke (12, 12') und einer unteren Grenzmarke (13, 13') für die Stromeinstellung ein Startpunkt (11, 11') eingestellt wird.
- Justierverfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß nach dem Toleranzausgleich ein Markierungsstrich an den Anfang des Teilbereichs (b,b') für die Stromeinstellung gesetzt wird.
- Justiereinrichtung für einen thermischen Überlastauslöser mit einer Anzahl von Bimetallstreifen (1) in einem mit einem Auslösemechanismus (2) unter Bildung eines Auslöseabstands (y) in Wirkverbindung stehenden mechanischen Abgriffsystem (3), wobei zur Umsetzung einer Bewegung in eine Abstandsänderung (Δy) ein Ausgleichselement (9, 9') mit einem Skalenbereich (a, a') vorgesehen ist, der einen einzigen ersten Teilbereich (c,c') für einen Toleranzausgleich und einen zweiten Teilbereich (b, b') zur Stromeinstellung umfaßt.
- Justiereinrichtung nach Anspruch 4, bei der das Ausgleichselement (9) zur Umsetzung einer Drehbewegung ein Exzenter mit einem Skalenwinkel (a) ist.
- Justiereinrichtung nach Anspruch 4, bei der das Ausgleichselement (9) zur Umsetzung einer Drehbewegung ein Schnecken- oder Schraubengewinde (14 bzw.15) mit einem Skalenwinkel (a) ist.
- Justiereinrichtung nach Anspruch 4, bei der das Ausgleichselement (9') zur Umsetzung einer Linearbewegung ein Hebel (16) mit einem Skalenweg (a') ist.
- Justiereinrichtung nach einem der Ansprüche 4 bis 7, bei der der nutzbare Skalenbereich (a, a') des Ausgleichselements (9, 9') eine obere Grenzmarke (12, 12') und eine untere Grenzmarke (13, 13') für die Stromeinstellung aufweist, wobei der erste Teilbereich (c,c') durch einen Startpunkt (11, 11') und die untere Grenzmarke (13, 13') begrenzt ist, und wobei der zweite Teilbereich (b, b') durch die obere Grenzmarke (12, 12') und den Startpunkt (11) begrenzt ist.
- Thermischer Überlastauslöser für ein Schutzgerät mit einer Justiereinrichtung (5) nach einem der Ansprüche 4 bis 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29724904U DE29724904U1 (de) | 1996-09-30 | 1997-09-16 | Justiereinrichtung für thermische Überlastauslöser |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19640387 | 1996-09-30 | ||
DE19640387 | 1996-09-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0833357A2 true EP0833357A2 (de) | 1998-04-01 |
EP0833357A3 EP0833357A3 (de) | 2000-11-02 |
EP0833357B1 EP0833357B1 (de) | 2007-08-08 |
Family
ID=7807503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970116108 Expired - Lifetime EP0833357B1 (de) | 1996-09-30 | 1997-09-16 | Justierverfahren für thermische Überlastauslöser |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0833357B1 (de) |
CN (1) | CN1071050C (de) |
DE (1) | DE59712868D1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1229565A2 (de) * | 2001-02-03 | 2002-08-07 | ABB PATENT GmbH | Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters |
WO2005104160A1 (de) * | 2004-04-23 | 2005-11-03 | Siemens Aktiengesellschaft | Überlastauslöser und justierverfahren für denselben |
EP2023367A3 (de) * | 2007-08-07 | 2009-12-02 | LS Industrial Systems Co., Ltd | Verfahren zur Einstellung der Auslösungsempfindlichkeit durch eine Überhitzungsschutzvorrichtung |
CN101350272B (zh) * | 2008-08-27 | 2010-11-10 | 常熟市天银机电有限公司 | 电机保护器的双金属片自动安装与输出装置 |
CN104752106A (zh) * | 2015-03-17 | 2015-07-01 | 温州职业技术学院 | 批量式断路器过载保护全自动调节*** |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4889555B2 (ja) * | 2007-04-23 | 2012-03-07 | 三菱電機株式会社 | 回路遮断器 |
KR100905021B1 (ko) * | 2007-08-07 | 2009-06-30 | 엘에스산전 주식회사 | 열동형 과부하 트립 장치 및 그의 트립 감도 조정 방법 |
JP4924374B2 (ja) * | 2007-11-15 | 2012-04-25 | 富士電機機器制御株式会社 | 回路遮断器 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH342629A (de) * | 1954-12-23 | 1959-11-30 | Eduard Dr Schrack | Auslöser für Schaltgeräte zum Schutze mehrphasiger Motoren gegen Überstrom und Einphasenlauf |
DE1614675A1 (de) * | 1967-12-09 | 1970-07-02 | Siemens Ag | Ausloeseeinrichtung fuer Bimetallrelais |
DE3305646A1 (de) * | 1982-06-22 | 1983-12-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Thermisches ueberstromrelais |
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 |
WO1986002197A1 (en) * | 1984-09-26 | 1986-04-10 | Licentia Patent-Verwaltungs-Gmbh | Bimetallic trigger |
FR2667979A1 (fr) * | 1990-10-11 | 1992-04-17 | Telemecanique | Declencheur thermique differentiel a bilames. |
-
1997
- 1997-08-27 CN CN97117505A patent/CN1071050C/zh not_active Expired - Fee Related
- 1997-09-16 DE DE59712868T patent/DE59712868D1/de not_active Expired - Fee Related
- 1997-09-16 EP EP19970116108 patent/EP0833357B1/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH342629A (de) * | 1954-12-23 | 1959-11-30 | Eduard Dr Schrack | Auslöser für Schaltgeräte zum Schutze mehrphasiger Motoren gegen Überstrom und Einphasenlauf |
DE1614675A1 (de) * | 1967-12-09 | 1970-07-02 | Siemens Ag | Ausloeseeinrichtung fuer Bimetallrelais |
DE3305646A1 (de) * | 1982-06-22 | 1983-12-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Thermisches ueberstromrelais |
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 |
WO1986002197A1 (en) * | 1984-09-26 | 1986-04-10 | Licentia Patent-Verwaltungs-Gmbh | Bimetallic trigger |
FR2667979A1 (fr) * | 1990-10-11 | 1992-04-17 | Telemecanique | Declencheur thermique differentiel a bilames. |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1229565A2 (de) * | 2001-02-03 | 2002-08-07 | ABB PATENT GmbH | Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters |
DE10104901A1 (de) * | 2001-02-03 | 2002-08-08 | Abb Patent Gmbh | Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters |
EP1229565A3 (de) * | 2001-02-03 | 2004-04-21 | ABB PATENT GmbH | Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters |
WO2005104160A1 (de) * | 2004-04-23 | 2005-11-03 | Siemens Aktiengesellschaft | Überlastauslöser und justierverfahren für denselben |
EP2023367A3 (de) * | 2007-08-07 | 2009-12-02 | LS Industrial Systems Co., Ltd | Verfahren zur Einstellung der Auslösungsempfindlichkeit durch eine Überhitzungsschutzvorrichtung |
US7821376B2 (en) | 2007-08-07 | 2010-10-26 | Ls Industrial Systems Co., Ltd. | Method for adjusting trip sensitivity of thermal overload protection apparatus |
CN101350272B (zh) * | 2008-08-27 | 2010-11-10 | 常熟市天银机电有限公司 | 电机保护器的双金属片自动安装与输出装置 |
CN104752106A (zh) * | 2015-03-17 | 2015-07-01 | 温州职业技术学院 | 批量式断路器过载保护全自动调节*** |
Also Published As
Publication number | Publication date |
---|---|
EP0833357A3 (de) | 2000-11-02 |
CN1178385A (zh) | 1998-04-08 |
EP0833357B1 (de) | 2007-08-08 |
CN1071050C (zh) | 2001-09-12 |
DE59712868D1 (de) | 2007-09-20 |
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