EP0053686B1 - Tauchkernspule mit einem Tauchkern - Google Patents

Tauchkernspule mit einem Tauchkern Download PDF

Info

Publication number
EP0053686B1
EP0053686B1 EP81108653A EP81108653A EP0053686B1 EP 0053686 B1 EP0053686 B1 EP 0053686B1 EP 81108653 A EP81108653 A EP 81108653A EP 81108653 A EP81108653 A EP 81108653A EP 0053686 B1 EP0053686 B1 EP 0053686B1
Authority
EP
European Patent Office
Prior art keywords
plunger
winding
reactance
iron circuit
yokes
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
Application number
EP81108653A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0053686A1 (de
Inventor
Günter Lubnau
Wolfgang Dr. Matthes
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.)
Transformatoren Union AG
Original Assignee
Transformatoren Union AG
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 Transformatoren Union AG filed Critical Transformatoren Union AG
Priority to AT81108653T priority Critical patent/ATE11838T1/de
Publication of EP0053686A1 publication Critical patent/EP0053686A1/de
Application granted granted Critical
Publication of EP0053686B1 publication Critical patent/EP0053686B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit

Definitions

  • the invention relates to a plunger core coil for use as an earth fault quenching coil in supply networks, with only one plunger core arranged axially on one side, which is adjustable in the axial direction in a winding having an annular cross section and encased on its outer sides by yoke legs and yokes of an iron circle, with a winding made of insulating material in the immovable part of the iron circle firmly clamped winding cylinder, the inside of which serves as a slideway and guide for the free end of the plunger immersed in the winding and with a spindle mounted on one side coaxially to the plunger for driving the plunger (DE-A-1 488 841).
  • earth fault quenching coils The destructive effects of earth faults between live conductors and earth in electrical supply networks on components and devices that are only indirectly involved are usually mitigated or completely avoided through the use of inductors, so-called earth fault quenching coils.
  • the earth fault cancellation coils are matched to the earth capacities of the electrical supply network to be protected in such a way that the capacitive earth fault current is compensated by the inductive current at the earth fault point. If the arc at the fault location does not go out due to the compensation, there are only relatively easily manageable residual currents, consisting of the active current component of the earth leakage current, the leakage losses via the insulation against earth and the harmonic currents.
  • Supply networks with variable expansion and therefore with different earth leakage currents are expediently equipped with continuously variable inductors in a plunger core design. Controlled by a corresponding additional circuit, the inductance of the plunger core coil is set to the compensation current corresponding to the respective network state.
  • the built-in plunger protrudes into the winding regardless of the respective setting and thus causes an unfavorable magnetic field distribution, especially in the plunger settings for low currents, which has an unfavorable effect on the iron core.
  • the invention is therefore based on the object of providing an arrangement for plunger core coils of the type mentioned which works reliably despite a very simple construction and on the one hand largely uniformly loads the electromagnetically utilized material quantity of the active part on as many plunger core positions as possible and largely avoids eddy current losses in construction parts.
  • this object is achieved by an arrangement in which all the boundary surfaces of the immovable part of the iron circuit opposite the end face of the end of the plunger immersed in the winding lie outside the space encompassed by the winding, and the spindle made of metallic material does not enter the space between the plunger core and Jochen protrudes and the end of the plunger protruding from the winding and from the immovable part of the iron circle is guided by spring-loaded rollers.
  • the arrangement of the immovable parts of the iron circuit outside the space enclosed by the winding ensures uniform loading of the winding regardless of the plunger position with a simple construction of the plunger coil.
  • the design of the spindle made of metallic material and the mounting of the free end of the plunger between spring-loaded rollers make a decisive contribution to the operational safety of the arrangement.
  • the use of metallic material for the spindle is permissible because, due to its arrangement outside the iron circle, it remains free of eddy currents.
  • partial cross sections of the winding conductor of each turn are distributed at least approximately uniformly over the entire winding length, that the plunger slides with synthetic resin runners on the inside of the winding cylinder and that the winding cylinder is guided through holding plates fitted onto its outer jacket, which are at the same time pressure plates for the axial pressing of the winding and are supported on the core pressing device in the axial and radial directions.
  • Advantageous embodiments of the invention also consist in the fact that the boundary surfaces of the immovable part of the iron circle opposite the end of the plunger immersed in the winding lie in a plane that at least the ends of the sheet metal fins are in the free end of the Plunger core opposite part of the immovable iron circle are glued together and that the plunger core is composed of radially arranged sheet metal plates.
  • the immovable part of the iron circle consists of several yoke legs and the upper and lower stumps connected to them, the lower stumps interlocking with coarse teeth.
  • the winding consists of a spirally wound film, the width of which is equal to the axial winding length, or the winding consists of winding groups which are arranged axially one above the other and are connected in parallel.
  • the arrangement and configuration of a plunger core coil according to the invention is very advantageous because it enables the material used to be used evenly and the individual components and assemblies to be designed in a manner which is economical in terms of rational production. This is ensured in particular by dispensing with a second, fixed plunger core.
  • the active part of a plunger coil is set up in an oil-filled boiler 1.
  • An iron circle of the active part consists of yoke legs 2, lower yokes 3, upper yokes 4 and an immersion core 5 and stands with feet 9 on the bottom of the boiler 1.
  • the immovable part of the iron circle from the yoke legs 2 and the yokes 3 and 4 spatially comprises a winding arrangement of winding groups 6, which are axially superimposed on a winding cylinder 7.
  • Four yoke legs 2 are evenly distributed over the circumference of the winding arrangement, the end faces of which are covered by the yokes 3 and 4 connected at right angles to the yoke legs 2.
  • Both the yoke legs 2 and the yokes 3 and 4 are composed of laminations laminated in axially parallel planes, which are held together by a pressing device, not shown. To relieve this pressing device and at the same time to suppress noise, the ends of the sheet metal fins are glued together in the free ends of the yokes 3 and 4.
  • the winding groups 6 enclosed by the immovable part of the iron circuit are electrically connected in parallel and all contain an equal number of turns. Due to the electrical parallel connection, the cross sections of the conductors in the individual winding groups 6 are practically only partial cross sections of a winding conductor divided according to the number of winding groups 6. Forces acting in the axial direction on the winding groups 6 are absorbed by holding plates 8, which in turn are held in a manner not shown by the pressing device for the immovable part of the iron circle.
  • winding groups 6 it is also possible to use a winding consisting of a spirally wound film, in which the film width is equal to the axial winding length.
  • This so-called film winding is particularly useful in cases in which there are relatively low nominal voltages of the winding, so that only relatively few turns are to be provided and thus the space required for isolating the turns from one another does not lead to uneconomically low occupancy of the winding space with winding conductor itself.
  • skids 10 made of synthetic resin which are inserted into recesses at the lower end of the plunger core 5 and are held in their installation position by a locking ring 11.
  • the runners 10 protrude slightly in the radial direction from the contour of the preferably radially laminated plunger core 5 and thereby prevent direct contact between the surface of the plunger core 5 and the winding cylinder 7, which is conventionally made of hard paper.
  • the plunger 5 passing through the opening between the free ends of the upper yokes 4 is guided above the yokes 4 between ball-bearing rollers 14, which are carried by guide bolts 13.
  • the guide bolts 13 are in turn mounted in bearing blocks 12 and press the ball-bearing rollers 14 against the plunger core 5 by means of appropriately preloaded disc springs 16.
  • the bearing blocks 12 are in a manner not shown, as are the holding plates 8 for the winding cylinder 7 with the pressing device for the immovable part connected to the iron circle.
  • the mechanical drive of the plunger 5 is carried out via a spindle 17 with a trapezoidal thread which is only supported at the top and does not protrude into the space between the plunger 5 and the lower yokes 3 in order to avoid eddy current losses intervenes.
  • the free end of the spindle 17 is guided over the lid of the boiler 1 and coupled there with a preferably electric motor drive, which brings the plunger 5 into the required position within the winding arrangement and the immovable part of the iron core by rotating the threaded spindle 17.
  • a preferably electric motor drive which brings the plunger 5 into the required position within the winding arrangement and the immovable part of the iron core by rotating the threaded spindle 17.
  • essentially only the air gap between the lower end of the plunger 5 and the lower yoke 3 are flan Kenden winding groups 6 live, because the magnetic voltage drop occurs essentially in this area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
EP81108653A 1980-12-05 1981-10-21 Tauchkernspule mit einem Tauchkern Expired EP0053686B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108653T ATE11838T1 (de) 1980-12-05 1981-10-21 Tauchkernspule mit einem tauchkern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3045954 1980-12-05
DE19803045954 DE3045954A1 (de) 1980-12-05 1980-12-05 Tauchkernspule mit einem tauchkern

Publications (2)

Publication Number Publication Date
EP0053686A1 EP0053686A1 (de) 1982-06-16
EP0053686B1 true EP0053686B1 (de) 1985-02-13

Family

ID=6118441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108653A Expired EP0053686B1 (de) 1980-12-05 1981-10-21 Tauchkernspule mit einem Tauchkern

Country Status (3)

Country Link
EP (1) EP0053686B1 (enrdf_load_stackoverflow)
AT (1) ATE11838T1 (enrdf_load_stackoverflow)
DE (1) DE3045954A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515723A1 (de) * 2014-04-30 2015-11-15 Trench Austria Gmbh Tauchkernspule, Gewindespindel hiefür und Verfahren zu deren Herstellung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730462A1 (de) * 1987-09-10 1989-03-23 Siemens Ag Einstellbare induktivitaet mit einem axial einseitig angeordneten tauchkern
EP3796349B1 (de) * 2019-09-20 2022-08-24 Siemens Energy Global GmbH & Co. KG Drosselspule mit verstellbarem eisenkern

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE506657C (de) * 1930-09-08 Aeg Regelbare Drosselspule mit einem innerhalb der Wicklung in axialer Richtung verschiebbaren, durch mehrere Luftspalte unterteilten Eisenkern
DE317728C (enrdf_load_stackoverflow) *
DE728973C (de) * 1937-12-01 1942-12-07 Siemens Ag Regeltransformator oder Regeldrosselspule fuer Mehrstellen-Lichtbogenschweissung
US2364291A (en) * 1940-10-30 1944-12-05 Rca Corp Intermediate frequency transformer
US2437021A (en) * 1945-10-06 1948-03-02 Fries Eduard Transformer with regulatable leakage reactance
US2727149A (en) * 1950-08-19 1955-12-13 Rca Corp Balanced multisection inductance units for high frequency signal systems and the like
US2731608A (en) * 1952-02-29 1956-01-17 Collins Radio Co Inductance corrector
DE1052569B (de) * 1954-10-14 1959-03-12 Zahnradfabrik Friedrichshafen Elektromagnet
DE1001755B (de) * 1955-11-25 1957-01-31 Licentia Gmbh Hydraulisch regelbare Tauchkerndrosselspule
AT218598B (de) * 1960-11-07 1961-12-11 Elin Union Ag Tauchkernspule
AT246247B (de) * 1964-12-30 1966-04-12 Elin Union Ag Tauchkernspule
DE1514505B2 (de) * 1965-07-12 1975-11-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Abgleichvorrichtung für eine elektrische Schalenkernspule
US3469220A (en) * 1967-06-05 1969-09-23 Lev Alexandrovich Mastrjukov Coreless high voltage electrical reactor
US3609614A (en) * 1969-12-29 1971-09-28 Hipotronics Mechanically variable high reactive power inductor for testing capacitive loads,such as high voltage electrical power transmission cables
DE2359999C3 (de) * 1973-12-01 1979-10-25 Samuil Chononovitsch Schtschutschinskij Elektromagnet zur Betätigung eines Stellglieds
FR2315753A1 (fr) * 1975-06-27 1977-01-21 Cit Alcatel Bobinage a inductance reglable
FR2335922A1 (fr) * 1975-12-18 1977-07-15 Selam Gabriel Inductance et son procede de fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515723A1 (de) * 2014-04-30 2015-11-15 Trench Austria Gmbh Tauchkernspule, Gewindespindel hiefür und Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
EP0053686A1 (de) 1982-06-16
DE3045954C2 (enrdf_load_stackoverflow) 1991-12-12
ATE11838T1 (de) 1985-02-15
DE3045954A1 (de) 1982-07-08

Similar Documents

Publication Publication Date Title
DE69728972T2 (de) Transformator/reactor
DE69223162T2 (de) Verteiltransformatoren
DE68920962T2 (de) Transformatorwicklung, aufgebaut als eine Scheibenwicklung mit axialen Kanälen.
EP1705673A1 (de) Induktiver Drehübertrager
DE2002192A1 (de) Hochspannungstransformator mit unterteiltem Kern
EP0053686B1 (de) Tauchkernspule mit einem Tauchkern
EP1725420B1 (de) Magnetanordnung für trag-, für- und/oder bremssysteme bei magnetschwebefahrzeugen
DE2953100C1 (de) Hochspannungs-Transformations- und Gleichrichtereinrichtung
DE1293334B (de) Eisenkernlose Hoechstspannungs-Nebenschlussdrossel
DE2226512C3 (de) Filterkreisdrossel
DE2154398C3 (de) Spannungstransformator zur vertikalen Aufstellung mit einem gestreckten Magnetkern
DE3730462C2 (enrdf_load_stackoverflow)
DE723560C (de) Transformator
DE69108862T2 (de) Drossel, insbesondere für Kurzwellen.
DE4333185C2 (de) Wicklungsanordnung
EP0154697B1 (de) Hochspannungswicklung mit gesteuerter Spannungsverteilung für Transformatoren
EP0167896B1 (de) Scheibenspulenwicklung für Transformatoren
DE2934719A1 (de) In vergussbauweise hergestellter transformator
DE639443C (de) Regeltransformator
EP0053691A1 (de) Saugdrossel für Hochstromtransformatoren
DE1057219B (de) Mittel- und Hochfrequenz-Leistungstransformator
DE3326422C2 (enrdf_load_stackoverflow)
DE3744436C2 (enrdf_load_stackoverflow)
AT268441B (de) Höchstspannungsnebenschlußdrossel
DE3040412C2 (de) Wicklungsanordnung für Transformatoren

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 19811021

AK Designated contracting states

Designated state(s): AT CH LI NL SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH LI NL SE

REF Corresponds to:

Ref document number: 11838

Country of ref document: AT

Date of ref document: 19850215

Kind code of ref document: T

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950118

Year of fee payment: 14

EAL Se: european patent in force in sweden

Ref document number: 81108653.7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950920

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19951017

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19951019

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19951031

Ref country code: CH

Effective date: 19951031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19961021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19961022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970501

EUG Se: european patent has lapsed

Ref document number: 81108653.7