EP4035188A1 - Widerstandsanordnung für stufenschalter und stufenschalter - Google Patents
Widerstandsanordnung für stufenschalter und stufenschalterInfo
- Publication number
- EP4035188A1 EP4035188A1 EP20774897.1A EP20774897A EP4035188A1 EP 4035188 A1 EP4035188 A1 EP 4035188A1 EP 20774897 A EP20774897 A EP 20774897A EP 4035188 A1 EP4035188 A1 EP 4035188A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resistor
- resistance
- guide
- tap changer
- resistance element
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/50—Adjustable resistors structurally combined with switching arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
- H01C1/014—Mounting; Supporting the resistor being suspended between and being supported by two supporting sections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/144—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals or tapping points being welded or soldered
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/46—Arrangements of fixed resistors with intervening connectors, e.g. taps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
Definitions
- the invention relates to a resistor arrangement for a tap changer and a tap changer with such a resistor arrangement.
- German patent application DE 4231 353 A1 discloses a tap changer.
- a current limiting resistor is connected at one end to one of the tap selectors and at its other end to the neutral point.
- the resistance is built in permanently and unchangeably.
- the German utility model DE 7707461 U discloses a diverter switch resistor.
- the diverter switch resistor consists of round, oval, rectangular or square resistor material with rounded edges, which is bent to form resistance spirals and installed in a self-supporting manner in chambers.
- the curved resistance spiral is built into a chamber formed from two insulating rods.
- On-load tap-changers in particular on-load tap-changers, are used for uninterrupted switching between winding taps of a transformer.
- the circulating current that flows when the currently connected tap-changer and the preselected new tap-changer are simultaneously contacted is limited by ohmic resistances, thereby ensuring an uninterrupted change in the transformation ratio of the transformer.
- the ohmic resistance must be designed depending on the specific circuit topology, the individual operating conditions as well as the load current and the step voltage, i.e. in particular the respective application of the on-load tap-changer.
- the step voltage is the voltage between the currently connected and the preselected step contact of the on-load tap-changer.
- the resistance design is complex and affects the entire manufacturing process, in particular the assembly process of the tap changer. Because, depending on the application, a different number and dimensioning of the resistors is required, so that the structural design of the tap changer may also have to be adapted. This results in a large number of different variants of tap changers depending on their respective application. At the moment, the tap changer is fitted with the necessary switching resistors during assembly according to the resistance value determined for a specific order and then fully assembled. In view of the high number of variants, this leads to increased effort when installing the tap changer.
- the object of the invention is therefore to provide an improved concept for a resistor arrangement for a tap changer that can be easily and quickly adapted to different applications of the tap changer and thereby ensures the operational safety of the tap changer.
- the resistor arrangement according to the invention for a tap changer comprises at least one resistor element which is held by at least two resistor holders.
- the resistor holders are provided at least on a base plate with at least one opening on which the at least two resistor holders for receiving the resistor element are arranged.
- the resistor element can be inserted through the opening into the guide of the resistor holder provided in the resistor holder.
- Guides are formed in each resistor holder.
- Each guide of the two resistance elements positioned a first end and a second end of the resistance element with respect to a longitudinal direction between the two resistance holders. In each case one contact point of the resistance element is electrically contacted by contacts of the tap changer when a resistance element is placed in the resistance holder.
- the improved concept for the tap changer with a resistor arrangement has the advantage that it is possible to change or replace the resistors easily and quickly if required (such as changing the operating conditions of the tap changer) and still guarantee the operational reliability of the tap changer .
- the one contact point of the resistor element is provided in an edge region at the first end and at the second end of each resistor element.
- each resistor holder comprises a guide for fixing the resistance element.
- Each guide can be designed as a slot with a closed end and an open end. At least in part, the slot is provided with a side wall which can extend in part along the slot. The resistance element can be inserted through the open end of the slot.
- the resistance arrangement is designed in such a way that the resistance element after assembly of the tap changer is fixed between the at least two resistance holders by means of the guide of the resistance holder.
- the guide can comprise a folding element which can be designed as a reversibly and elastically pivotable leg with a snap hook provided at a free end.
- the snap hook secures the resistance element pushed into the guide and holds it in position between the two resistance holders.
- the resiliently pivotable leg gives way when the resistance element is pushed into the guide and also forms part of the guide.
- the at least one resistance element comprises a resistance carrier and a current-limiting element.
- the resistor carrier can be designed as a plate and the current-limiting element can be designed as a metallic wire that is wound around the plate.
- the resistance carrier can be designed as a frame and the current-limiting element in the form of one or more metallic springs which are tensioned in the frame
- each resistance element at the first end and at the second end can each have an edge region that is free of the current-limiting element.
- the closed end of the guide defines an end position for the resistance element in the resistance holder.
- a part of the edge region of the resistance element essentially interacts with the slot of the guide in a form-fitting manner.
- the form-fitting interaction means that the edge regions of the resistance element are at least partially surrounded by the guide on at least three sides in a form-fitting manner, that is to say with an accurate fit.
- the open end of the guide thus forms an open side of the guide, via which the resistance element can be inserted into the resistance holder.
- the snap hook forms a part the guide of the resistance holder in such a way that the snap hook surrounds the resistance element, when it has reached the end position in the guide, to at least part of it and thereby locks it in the end position.
- the snap hook can also simply be released from the locking position, so that the resistance element can be removed again and exchanged for another (with a different specification), for example.
- the resistor holder and the guide are made in one piece and made of insulating material.
- the resistor holder, the guide and the holding element are formed in one piece.
- the resistor holder can preferably be produced from a plastic by means of an injection molding process.
- the base plate has at least one opening in the area of the at least two resistor holders, which is designed such that the at least one resistor element can be fixed through the opening between the at least two resistor holders by means of the guides of the resistor holders.
- the at least one opening can be designed to be essentially rectangular.
- the resistance element can comprise two contact points made of electrically conductive material, which are electrically conductively connected to the current-limiting element.
- the contact points of the resistance element are essentially provided in an edge region at the first end and at the second end of each resistance element.
- each contact point is designed as a metal plate.
- the resistor arrangement comprises at least two contacts which can connect the resistor element to current-carrying lines of the tap changer via the at least one contact point.
- the contacts can be designed as spring contacts. Via the current-carrying lines, the resistance element is preferably connected in an electrically conductive manner to the discharge line and / or contacts and / or switches and / or other current-carrying components of the tap changer.
- the contacts can be selector contacts and corresponding step contacts, for example, via which the voltage ratio of the transformer windings is preselected or set.
- the switches can be designed, for example, as vacuum interrupters and / or as other mechanical switching elements, via which the load switchover from the currently connected to the preselected step contact takes place.
- the contacts are formed as spring contacts which are designed with a defined mechanical preload such that the spring contacts press against the contact points of the resistor carrier when the resistor element is positioned in the resistor holders.
- the contacts can be integrated into the resistance holder.
- the contacts would also make up part of the tour.
- the at least two resistor elements can be arranged between the resistor holders essentially parallel to one another and / or one above the other in the vertical direction.
- the at least two resistance elements form a resistance module.
- a tap changer is also specified which comprises the resistor arrangement according to the invention.
- the tap changer comprises at least the first base plate and a second base plate, which are held in spatial relation to one another via at least two winder holders.
- the at least two resistance holders can be arranged perpendicular to the at least two base plates.
- the at least two winder spacers can be arranged between the at least two base plates.
- the two resistance holders can be arranged parallel to one another.
- the invention is explained in detail on the basis of exemplary embodiments with reference to the drawings. Components that are identical or functionally identical or have an identical effect can be provided with identical reference symbols. Identical components or components with identical functions may only be explained with reference to the figure in which they first appear. The explanation is not necessarily repeated in the following figures.
- Figure 1 is a partial view of a tap changer with the arrangement of a counter stand element
- FIG. 2 shows a perspective illustration of an exemplary embodiment of a resistor arrangement according to the improved concept
- FIG. 3 shows a longitudinal sectional illustration of an exemplary embodiment of a resistor holder for a resistor arrangement according to the improved concept
- FIG. 4 shows a detailed view of the resistor arrangement from FIG. 2;
- FIG. 5 shows a perspective illustration of an exemplary embodiment of a resistance element according to the improved concept;
- FIG. 6 shows a perspective illustration of the arrangement of the resistance element from FIG. 2 in electrical contact with lines of the tap changer
- FIG. 7 shows another view of the perspective representation of the arrangement of the resistance element from FIG. 6;
- FIG. 8 shows a perspective illustration of a further exemplary embodiment of a resistor arrangement according to the improved concept
- FIG. 9 shows a side view in longitudinal section of the resistor arrangement from FIG.
- FIG. 10 shows a longitudinal sectional illustration of an exemplary embodiment of several resistance elements fixed in a resistance holder according to the improved concept.
- Identical reference characters are used for elements of the invention that are identical or function in the same way.
- only reference symbols are shown in the individual figures which are necessary for the description of the respective figure.
- Components of the tap changer, which are essential for the following description of the resistor arrangement, have not been shown in these figures for the sake of clarity.
- the figures merely represent exemplary embodiments of the invention without, however, restricting the invention to the illustrated exemplary embodiments.
- FIG. 1 shows a partial view of a tap changer 1.
- the tap changer 1 comprises at least one switching element 2 with which a switchover from one tap (not shown) to the next tap (not shown) of a transformer winding takes place.
- the switching element 2 is assigned a resistance element 20 with which a circulating current that flows when switching during the simultaneous con tacting of a currently connected and the preselected new step contact is limited. This guarantees an uninterrupted change in the transformation ratio of the transformer.
- the resistance element 20 is held in two resistance holders 30 and is thus positioned in relation to the switching element 2.
- the resistance element 20 defines a first end 20i and a second end 2O2 with which it is held in the two resistance holders 30.
- An electrically conductive connection is established from the switching element 2 to the resistance element 20 in the region of the first end 20i and the second end 2O2 via electrical contacts 40.
- FIG. 2 shows a perspective illustration of an exemplary embodiment of a resistor arrangement 10 for a tap changer 1.
- the resistor arrangement 10 comprises two resistor holders 30 which are arranged or mounted on a base plate 11.
- a resistance element 20 is held and fixed at a first end 20i and at a second end 2O2 by the resistance holder 30.
- the resistance element 20 is positioned in the longitudinal direction L by the resistance holder 30.
- each resistor holder 30 has a guide 31 which facilitates the insertion of the resistor element 20 and the inserted resistor element 20 is positioned in its longitudinal direction L between the two resistor holders 30.
- the guide 31 serves as a fold for the first end 20i and the second end 2O2 of the resistance element 20.
- the guide 31, according to this exemplary embodiment, consists of a slot 32 formed in the resistance holders 30.
- the slot 32 is at least partially with a side wall 33, which extends only partially along the entire length of the slot 32.
- the two side Borrowed walls 33 represent a lateral limitation for the resistance element 20, which facilitates the insertion of the resistance element 20 into the guide 31 of the two resistance holders 30 and prevents the resistance element 20 from being pushed in or in the end position in the longitudinal direction L of the resistance element 20 can be pushed.
- the guide 31 also has a closed end 37 and an open end 36.
- the guide 31 is formed in the resistor element 20 such that the closed end 37 is located in the resistor holder 30 and is arranged at a distance B from the base plate 11. Furthermore, the guide 31 is inclined at an angle ⁇ to the base plate 11 when the resistance holders 30 are mounted on the base plate 11.
- the open end 36 of the guide 31 of the resistor holder 30 is provided opposite one of the openings 12 in the base plate 11. Furthermore, the resistance holder 30 comprises a holding element 34 for the resistance element 20 when this is inserted into the guides 31 of the resistance holder 30.
- the folding element 34 is designed as a reversible and elastically pivotable leg 38 which has a snap hook 39H formed at a free end 39. The pivotable leg 38 of the folding element 34 forms part of the guide 31.
- One end position of the resistance element 20 in the guide 31 is reached when it comes to rest on the closed end 37 of the guide 31.
- the pivotable leg 38 moves into the starting position and the elastic snap hook 39H at the free end 39 returns to its starting position and thus locks the resistance element 20 in the guide 31.
- the resistance element 20 is then essentially fixed in operative connection with the guide 31 in the area of the first end 20i and the second end 2O2 and the snap hooks 39H and thus in the two resistance holders 30.
- FIG. 4 shows a detailed view of the resistor arrangement with a resistor element 20 which is held by one of the resistor holders 30.
- the resistance element 20 is seated with the first end 20i or the second end 2O2 in the guide 31 of the resistance holder.
- the elastic snap hook 39H at the free end 39 of the pivotable leg secures the resistance element 20 in the guide 31.
- FIG. 5 shows a perspective view of an exemplary embodiment of a resistor element 20.
- the resistor element 20 consists of a resistor carrier 21 and a current-limiting element 22 which, according to this exemplary embodiment, is designed as a metallic wire which is wound around the resistor carrier 21 and fixed at the first end 20i and the second end 2O2 by means of a clamp 25.
- the resistance element 20 at the first end 20i and at the second end 202 each has an edge region 23 which is not in contact with the current-limiting element 22, the metallic wire.
- Each of the edge areas 23 of the resistor carrier 21 has a contact point 24 in each case.
- the con tact points 24 are made of electrically conductive material and, for example, as brackets or plates.
- spring contacts 40 which are connected at a first free end 42 to current-carrying lines 41 of the tap changer 1 and which are connected to the second free end 43 with a defined spring force against the Needlesstel len 24 of the resistance element 20 are pressed.
- Figures 6 and 7 show from different perspective views, the contacting of the resistance element 20 with the current-carrying lines 41 of the tap changer 1.
- the current-carrying lines 41 of the tap changer 1 are connected to the first free end 42 of the spring contacts 40.
- the spring contacts 40 press against the contact points 24 formed in the resistance element 20 inserted through the opening 12 of the base plate 11.
- FIG. 8 shows a perspective illustration of a further embodiment of a resistance arrangement according to the improved concept.
- FIG. 9 is a side view in longitudinal section of the resistor arrangement from FIG. 8.
- FIGS. 8 and 9 show the resistor arrangement in a three-phase tap changer 1.
- a base plate 11 made of insulating material thus has three openings 12 through which the resistance elements 20 enter the fully assembled tap changer 1 can be used.
- a second base plate 13 made of insulating material is arranged opposite the base plate 11.
- a total of six resistor holders 30 are placed between the two base plates 11 and 13.
- a resistor element 20 is fixed between two resistor holders 30.
- the two base plates 11 and 13 are connected to one another via the resistor holder 30.
- the resistance holders 30 preferably have pins 35 which can be inserted and riveted into corresponding holes (not shown) provided in the base plates 11 and 13.
- FIG. 10 shows a longitudinal sectional view of an exemplary embodiment of several resistance elements 20 fixed in a resistance holder 30 according to the improved serten concept.
- a total of three resistor elements 20 are arranged here, for example, on the resistor holder 30 in a stack-like manner, one below the other or one above the other.
- the resistance holder 30 has three guides 31 and three snap hooks 34, which are of identical design.
- the step switch 1 With a resistor arrangement 10 or a step switch 1 according to the improved concept, it is possible to equip the step switch 1 flexibly, that is, depending on the application, with the required resistance elements 20 with regard to the size of the resistance (ohmic shear resistance). According to the improved concept, the resistance elements 20 can still be used after the complete tap changer 1 has been assembled and, if necessary, for example when the operating conditions of the tap changer 1 change, can also be simply replaced. As a result, the tap changer 1 can be built independently of the order and as a stock item. For example, the adaptation to the respective application of the tap changer 1 could also be completely outsourced from the manufacturing process, and the resistors could only be installed in the tap changer on site by the transformer manufacturer or the network operator.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Details Of Resistors (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019126168.6A DE102019126168A1 (de) | 2019-09-27 | 2019-09-27 | Widerstandsanordnung für stufenschalter und stufenschalter |
PCT/EP2020/074987 WO2021058272A1 (de) | 2019-09-27 | 2020-09-08 | Widerstandsanordnung für stufenschalter und stufenschalter |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4035188A1 true EP4035188A1 (de) | 2022-08-03 |
Family
ID=72560545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20774897.1A Pending EP4035188A1 (de) | 2019-09-27 | 2020-09-08 | Widerstandsanordnung für stufenschalter und stufenschalter |
Country Status (7)
Country | Link |
---|---|
US (1) | US12087478B2 (de) |
EP (1) | EP4035188A1 (de) |
CN (1) | CN114450758A (de) |
AU (1) | AU2020353130A1 (de) |
DE (1) | DE102019126168A1 (de) |
MX (1) | MX2022003693A (de) |
WO (1) | WO2021058272A1 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3207504A (en) * | 1962-01-30 | 1965-09-21 | Western Electric Co | Positioning and holding device |
DE7707461U1 (de) * | 1977-03-11 | 1977-07-07 | Transformatoren Union Ag, 7000 Stuttgart | Lastumschalter-widerstand |
KR920000868Y1 (ko) * | 1988-07-08 | 1992-01-31 | 지이제루 기기 가부시기가이샤 | 송풍기 제어용의 조절장치 |
DE4231353C2 (de) * | 1991-09-19 | 1997-07-24 | Toshiba Kawasaki Kk | Stufenschalter |
IT227466Y1 (it) * | 1992-02-07 | 1997-12-15 | Elecom Srl | Dispositivo resistivo per il controllo discreto di un attuatore elet- trico. |
DE19530413C1 (de) * | 1995-08-18 | 1997-04-03 | Heraeus Sensor Gmbh | Verfahren zur Befestigung und Kontaktierung von Widerstandselementen für Heißfilmanemometer sowie Sensoranordnung |
WO2008024067A1 (en) | 2006-08-25 | 2008-02-28 | Abb Technology Ltd. | A resistor for electric high-voltage apparatus and a method of mounting a resistor |
DE102011014325B4 (de) * | 2011-03-18 | 2014-11-27 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE202012100521U1 (de) * | 2012-02-16 | 2012-04-26 | Jovyatlas Elektrische Umformtechnik GmbH | Lastwiderstand |
DE102014100949B4 (de) * | 2014-01-28 | 2016-12-29 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter nach dem Reaktorschaltprinzip |
-
2019
- 2019-09-27 DE DE102019126168.6A patent/DE102019126168A1/de active Pending
-
2020
- 2020-09-08 WO PCT/EP2020/074987 patent/WO2021058272A1/de active Application Filing
- 2020-09-08 EP EP20774897.1A patent/EP4035188A1/de active Pending
- 2020-09-08 CN CN202080067511.9A patent/CN114450758A/zh active Pending
- 2020-09-08 AU AU2020353130A patent/AU2020353130A1/en active Pending
- 2020-09-08 MX MX2022003693A patent/MX2022003693A/es unknown
- 2020-09-08 US US17/640,839 patent/US12087478B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2021058272A1 (de) | 2021-04-01 |
CN114450758A (zh) | 2022-05-06 |
DE102019126168A1 (de) | 2021-04-01 |
US12087478B2 (en) | 2024-09-10 |
AU2020353130A1 (en) | 2022-05-05 |
MX2022003693A (es) | 2022-04-26 |
US20220344079A1 (en) | 2022-10-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2706482C2 (de) | Schraubenlose Anschluß- und/oder Verbindungsklemme | |
DE69524702T2 (de) | Elektrischer Verbindungskasten | |
EP3454422B2 (de) | Leiteranschlussklemme | |
DE3830442C2 (de) | Klemmvorrichtung zum schraubenlosen Anschluß mindestens eines elektrischen Leiterdrahts | |
EP2147447A1 (de) | Schaltanordnung | |
EP1096606A1 (de) | Anschlussklemme | |
WO2020016395A1 (de) | Leiteranschlussklemme | |
EP1217692B1 (de) | Anschlussklemme für elektrische Leiter | |
AT517769B1 (de) | Energiezähler-Anschlussklemmenblock mit Überbrückungsvorrichtung | |
EP2686857B1 (de) | Laststufenschalter | |
DE102009030645B4 (de) | Brückerelement und Set aus zumindest einem Klemmelement und Brückerelement | |
EP4035188A1 (de) | Widerstandsanordnung für stufenschalter und stufenschalter | |
DE2604466C3 (de) | Elektrischer Schalter mit in Buchsen einlegbaren, feststehenden Kontaktelementen | |
DE2622054C3 (de) | Elektromagnetisches Schaltgerät | |
EP0831569A2 (de) | Hilfsschalter | |
DE3125812A1 (de) | Elektromechanische schalteinrichtung fuer fernsprechgeraete | |
EP1251537B1 (de) | Sicherungslasttrennschalter in Leistenbauform | |
DE69808836T2 (de) | Adapter zur modularen Verbindung elektrischer Geräte zu einem elektrischen Verteilungssystem auf Basis von Schiene | |
DE4422123A1 (de) | Adapter für Stromsammelschienen | |
EP0432859B1 (de) | Kontaktvorrichtung zur lösbaren Aufnahme von Trennkontaktstücken eines mehrpoligen Schaltgerätes | |
DE69510030T2 (de) | Kontaktblock mit wahlweise als offner oder schliesser veränderbaren elektrische kontakten | |
DE4011446A9 (de) | Schnellbefestigungsvorrichtung zum Aufschnappen eines Installationsgerätes auf eine Normprofiltragschiene | |
DE1270149B (de) | Kontakt mit angeformter Klemme fuer einen schraubenlosen Anschluss | |
DE29718428U1 (de) | Ladegerät | |
EP1856779A1 (de) | Rasthaken für einen lasttrennschalter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220428 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 40068997 Country of ref document: HK |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) |