EP0044802A1 - Dispositif à résistance comportant des éléments résistifs annulaires empilés ayant un axe commun - Google Patents

Dispositif à résistance comportant des éléments résistifs annulaires empilés ayant un axe commun Download PDF

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Publication number
EP0044802A1
EP0044802A1 EP81730056A EP81730056A EP0044802A1 EP 0044802 A1 EP0044802 A1 EP 0044802A1 EP 81730056 A EP81730056 A EP 81730056A EP 81730056 A EP81730056 A EP 81730056A EP 0044802 A1 EP0044802 A1 EP 0044802A1
Authority
EP
European Patent Office
Prior art keywords
resistance
resistance device
elements
resistor
axis
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Withdrawn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
EP81730056A
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Dipl.-Ing. Kersten
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0044802A1 publication Critical patent/EP0044802A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/12—Overvoltage protection resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/18—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material comprising a plurality of layers stacked between terminals

Definitions

  • the invention relates to a resistance device with ring-shaped resistance elements stacked one above the other in the same axis to form a stack, each with two diametrically opposed end faces
  • the object of the invention is to create a resistance device which is comparatively simple to manufacture and which is distinguished by a high resistance value with a relatively low overall height.
  • each contact device consists of a conductive rod, the longitudinal axis of which extends parallel to the axis of the resistance elements; At least one insulating spacer is located in the area of the end faces of adjacent resistance elements that is free of the rod.
  • a major advantage of the resistance device according to the invention is that its contact devices are relatively simple because they each consist of only one conductive rod. This is made possible by the fact that, in the resistance device according to the invention, the current profile in the individual annular resistance element does not take place in a direction parallel to the axis of the resistance elements, but in a ring shape in each resistance element. This also has the advantage that a current path with a large ohmic resistance is formed for the current in the resistance device according to the invention in comparison with the dimensions of the resistance device.
  • the overall height of the resistance device according to the invention is relatively low, so that it can be used particularly advantageously wherever confined space relationships exist. This applies, for example, to the applications of the resistance device according to the invention, in which it is to be used within the capsule of a fully insulated, metal-encapsulated high-voltage switchgear.
  • the insulating spacer can be designed in different ways.
  • it can consist of an open ring part which is arranged diametrically opposite the conductive rod.
  • the insulating spacer consists of an insulating rod which is arranged diametrically opposite the conductive rod. This embodiment is particularly easy to manufacture.
  • the structural cohesion of the resistance elements, the conductive rods and the insulating spacers can also be done differently.
  • these parts can be clamped together using insulating plates and insulating clamping bolts.
  • a particularly favorable embodiment in terms of production technology is seen in the fact that the contra stand elements, the conductive rods and the insulating spacers are embedded in a cast resin body.
  • the structural cohesion of the aforementioned parts of the resistance device is brought about solely by casting resin.
  • the casting resin body is advantageously a hollow cylinder.
  • a capacitor column is advantageously located within the resistance device; capacitive control can be achieved through this column.
  • the design of the resistance device according to the invention as a cast resin body also creates the advantageous possibility of embedding external contact rings in this cast resin body, via which the resistance device can be connected.
  • the resistance device 1 shown contains ring-shaped resistance elements 2, which are layered one above the other, a stack with one having the axis of Resistance elements 2 coincident axis 2a is formed. Between each of the adjacent resistance elements 2, a conductive rod 3 is arranged, which an insulating rod 4 is diametrically opposite (see also Fig. 2). The longitudinal axis 3a of the conductive bars 3 extends parallel to the axis 2a of the resistance elements.
  • an outer contact ring 5 which rests on the adjacent conductive rod 3 and the adjacent insulating rod 4.
  • the contact ring 5 is provided with holes 6 so that a metal connecting piece 8 can be fastened to it by means of screws 7.
  • This connector 8 is provided with a blind hole 9 into which a contact piece, not shown, for connecting the resistance device 1 can be inserted.
  • the resistance device 1 is formed in a similar manner at its lower end in FIG. 1.
  • the further connecting piece 10 also has a central recess 15 in order to be able to insert a contact pin (not shown) for connecting this end of the resistance device 1.
  • the resistance elements 2, the conductive rods 3 and the insulating rods 4 are embedded together with the contact rings 5 and 10 in a cast resin body 16, which is a hollow cylinder.
  • the hollow cylinder can be designed as a straight cylinder; but it is also possible to have the hollow cylinder taper upwards.
  • a capacitor column 17 composed of a plurality of capacitors 18 which are stacked one above the other and thus form a series connection.
  • the capacitor column 17 is in contact with the contact rings 5 and 10 and is thus also connected to the voltage at which the resistance device 1 is connected.
  • a capacitive control and a relief of the resistance device 1 at surge voltages is achieved when the resistance device 1 has a smaller capacitance, for. B. in the form of an inductive voltage converter.
  • a resistance device is created which is characterized by a comparatively simple structure and thus an inexpensive production, and by a small overall height with a relatively large ohmic resistance value.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
EP81730056A 1980-07-17 1981-06-19 Dispositif à résistance comportant des éléments résistifs annulaires empilés ayant un axe commun Withdrawn EP0044802A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8019410 1980-07-17
DE8019410U 1980-07-17

Publications (1)

Publication Number Publication Date
EP0044802A1 true EP0044802A1 (fr) 1982-01-27

Family

ID=6717353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730056A Withdrawn EP0044802A1 (fr) 1980-07-17 1981-06-19 Dispositif à résistance comportant des éléments résistifs annulaires empilés ayant un axe commun

Country Status (1)

Country Link
EP (1) EP0044802A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991017554A1 (fr) * 1990-05-08 1991-11-14 Asea Brown Boveri Ab Circuit de surtension
CN112117074A (zh) * 2020-07-13 2020-12-22 平高集团有限公司 一种合闸电阻及使用该合闸电阻的合闸电阻装配结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2347796A (en) * 1943-02-19 1944-05-02 Sprague Products Company Electrical resistor
FR965616A (fr) * 1950-09-16
FR59423E (fr) * 1949-07-15 1954-05-25 Oerlikon Maschf Dispositif de dérivation de surtension
GB858117A (en) * 1956-07-06 1961-01-04 English Electric Co Ltd Improvements in and relating to electric resistors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR965616A (fr) * 1950-09-16
US2347796A (en) * 1943-02-19 1944-05-02 Sprague Products Company Electrical resistor
FR59423E (fr) * 1949-07-15 1954-05-25 Oerlikon Maschf Dispositif de dérivation de surtension
GB858117A (en) * 1956-07-06 1961-01-04 English Electric Co Ltd Improvements in and relating to electric resistors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991017554A1 (fr) * 1990-05-08 1991-11-14 Asea Brown Boveri Ab Circuit de surtension
CN112117074A (zh) * 2020-07-13 2020-12-22 平高集团有限公司 一种合闸电阻及使用该合闸电阻的合闸电阻装配结构
CN112117074B (zh) * 2020-07-13 2022-05-20 平高集团有限公司 一种合闸电阻及使用该合闸电阻的合闸电阻装配结构

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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: 19811028

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT NL SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840216

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KERSTEN, KLAUS-DIETER, DIPL.-ING.