EP0391325A1 - Behälter zum Unterbringen von elektrischen Apparaten - Google Patents

Behälter zum Unterbringen von elektrischen Apparaten Download PDF

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Publication number
EP0391325A1
EP0391325A1 EP90106325A EP90106325A EP0391325A1 EP 0391325 A1 EP0391325 A1 EP 0391325A1 EP 90106325 A EP90106325 A EP 90106325A EP 90106325 A EP90106325 A EP 90106325A EP 0391325 A1 EP0391325 A1 EP 0391325A1
Authority
EP
European Patent Office
Prior art keywords
container
cylindrical member
terminals
electrical apparatus
partition
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
Application number
EP90106325A
Other languages
English (en)
French (fr)
Other versions
EP0391325B1 (de
Inventor
Akio C/O Mitsubishi Denki K.K. Kishi
Katsuaki C/O Mitsubishi Denki K.K. Itoh
Kazuo C/O Mitsubishi Denki K.K. Yoshida
Toyokazu C/O Mitsubishi Denki K.K. Kouan
Taihei C/O Mitsubishi Denki K.K. Adachi
Yasushi C/O Mitsubishi Denki K.K. Fuwa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Priority claimed from JP15491289A external-priority patent/JP2616015B2/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0391325A1 publication Critical patent/EP0391325A1/de
Application granted granted Critical
Publication of EP0391325B1 publication Critical patent/EP0391325B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings

Definitions

  • This invention concerns a container for a plurality of electrical instruments such as a transformer and a voltage regulator.
  • Fig. 1 is a schematic drawing showing a conventional container for a transformer and a voltage regulator.
  • a container 1 has a partition which divides the container 1 into two areas 3 and 4.
  • Partition 2 comprises a mounting portion 21 fixed to the container 1 and disk-shaped, electrically-insulating partition plate 22 which is fixed to this mounting portion.
  • a plurality of terminals 5 are attached to the partition plate as shown in Fig. 2, and each terminal passes through the plate to form a coupling portion for lead wires.
  • a transformer 6 is installed in one area 3 of the container, a group 7 of tap leads drawn up from tap coils is mounted on the transformer, and tap leads 8 extending from the the group of tap leads drawn up from tap coils are connected respectively to terminals 5 on one surface of the partition plate 22.
  • a voltage regulator 9 is installed in the other area 4 of the container, and tap leads 10 connect the terminals of the voltage regulator to the terminals 5 on the other surface of the partition plate 22.
  • This invention was conceived to overcome the above problems. It aims to furnish a container wherein a large number of terminals can be provided without increasing the size of the whole container, which has a partition with sufficient strength to fully withstand external pressures.
  • the electrical instrument container of this invention comprises a partition which divides the container into a plurality of areas, and the partition is composed of a cylindrical member closed at one end and a mounting portion for fixing the cylindrical member to the container, terminals being attached to the cylindrical member.
  • the surface area of the partition to which terminals are attached can be enlarged by increasing the length of the cylinder in the axial direction, and many terminals can thus be mounted.
  • the partition is constructed in the shape of a cylinder, it has a very high mechanical strength, and it can fully withstand external pressures of the type mentioned above.
  • the container of this embodiment has a first tank 103 for accommodating a transformer 6 with a group 7 of tap leads drawn up from tap coils, a second tank 104 for accommodating a voltage regulator 9, and a connecting portion 20 for connecting the first tank 103 and the second tank 104.
  • Tanks 103 and 104, and connecting portion 20 are filled with electrically insulating oil for the purpose of electrically insulating and cooling the apparatus.
  • electrically insulating oil instead of insulating oil, other fluid such as SF6 (Sulfur hexafluoride) gas may be used.
  • the first tank 103 and second tank 104 are both of a rectangular parallelepiped.
  • the connecting portion 20 is in the form of a tube with a rectangular cross section, and the both ends are attached to the upper parts of the lateral faces of tanks 103 and 104, with the space inside the connecting portion communicating with the space in each tank.
  • Tank 103, connecting portion 20, and tank 104 are arranged in such a manner that respective upper surfaces are in the same plane.
  • the cross section of the connecting portion 20 is generally smaller than the vertical sections of the tanks 103 and 104.
  • the connecting portion 20 is provided with a mounting portion 21 having a disk-shaped opening 21a.
  • the mounting portion 21 is attached at its four sides to the inner surfaces of four walls of the connecting portion 20, being so disposed that its flat surface is orthogonal to the direction in which the connecting portion 21 extends.
  • a cylindrical member 30 formed of an electrically insulating material is fixed to the mounting portion 21.
  • the cylindrical member 30 comprises a cylindrical wall 23, an end plate 24 being continuous with and integrally formed with the cylindrical wall 23 for closing one end of the cylindrical wall 23, and a flange portion 25 connected to the other end of the cylindrical wall and integrally formed with the cylindrical wall.
  • Flange portion 25 is annular and is fixed to the mounting portion 21.
  • the cylindrical member 30 and the mounting portion 21 together form a partition 102 which sealingly isolates the two areas.
  • the inner diameter of the flange coincides with the outer diameter of the cylindrical wall 23, and the outer diameter is larger than the opening 20a of the mounting portion 21 so that the flange overlaps with the mounting portion 21.
  • the axis of the cylindrical wall 23 extends in the longitudinal direction of the connecting portion 20, i.e., in the direction in which the connecting portion 20 extends.
  • the mounting portion 21 is disposed nearer to the tank 104 and the cylindrical member 30 extends from this mounting portion 21 toward the other tank 103.
  • a plurality of terminals are provided on the cylindrical wall 23 of the cylindrical member 30, passing through the walls 23. Lugs 51 and 52 are attached to the terminals 5 on a first or outer surface and a second or inner surface of the walls 23.
  • Tap leads 8 from the group 7 of tap leads drawn up from tap coils of the transformer 6 are connected to lugs 51 on the outer surface of the cylindrical wall 23, while tap leads 10 from the voltage regulator 9 are connected to lugs 52 on the inner surface of the cylindrical wall 23.
  • terminals 5 are arranged in three rows spaced from each other in the axial direction of cylindrical member 30.
  • the terminals in the respective rows are spaced at suitable intervals over the entire circumference of the cylindrical wall 23.
  • the number of rows in the axial direction and the number of terminals in each row may be determined according to the total number of terminals.
  • a plurality of cylindrical members 30 may be provided.
  • the mounting portion 21 should have a plurality of openings corresponding to the number of the cylindrical members.
  • cylindrical member 30 projects toward the area in which the transformer is installed, but the same effects are obtained even if it projects toward the area in which the voltage regulator is installed.
  • the partition 102 By forming the partition 102 in the shape of a cylinder, its surface area can be made larger, and a greater number of terminals can be provided on it. Further, by employing a cylindrical structure, mechanical strength is very much improved, and a structure is obtained which is robust to external forces even if the partition plate is made thin.
  • Fig. 5 shows another embodiment of this invention wherein terminals 5 are also provided on the end plate 24 of the cylindrical member 30.
  • the other elements of the construction are similar to those of Embodiment 1 and the description thereof will therefore be omitted.
  • Tap leads 8 and 10 at high potential may therefore be connected to terminals 5 on end plate 24, while those at low potential may be connected to terminals 5 on cylindrical wall 23 of cylindrical member 30. The insulation can thus be made more reliable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
EP19900106325 1989-04-05 1990-04-03 Behälter zum Unterbringen von elektrischen Apparaten Expired - Lifetime EP0391325B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP85941/89 1989-04-05
JP8594189 1989-04-05
JP154912/89 1989-06-15
JP15491289A JP2616015B2 (ja) 1989-04-05 1989-06-15 電気機器の容器

Publications (2)

Publication Number Publication Date
EP0391325A1 true EP0391325A1 (de) 1990-10-10
EP0391325B1 EP0391325B1 (de) 1994-01-19

Family

ID=26426953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900106325 Expired - Lifetime EP0391325B1 (de) 1989-04-05 1990-04-03 Behälter zum Unterbringen von elektrischen Apparaten

Country Status (2)

Country Link
EP (1) EP0391325B1 (de)
DE (1) DE69006073T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103985569A (zh) * 2013-02-07 2014-08-13 三菱电机株式会社 分接头切换器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1382245A (fr) * 1963-11-04 1964-12-18 Comp Generale Electricite Transformateurs à prises multiples avec dispositif de réglage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1382245A (fr) * 1963-11-04 1964-12-18 Comp Generale Electricite Transformateurs à prises multiples avec dispositif de réglage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 261 (E-636)(3108) 22 July 1988, & JP-A-63 46707 (TOSHIBA CORP.) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103985569A (zh) * 2013-02-07 2014-08-13 三菱电机株式会社 分接头切换器
US9349529B2 (en) 2013-02-07 2016-05-24 Mitsubishi Electric Corporation Tap changer

Also Published As

Publication number Publication date
DE69006073D1 (de) 1994-03-03
DE69006073T2 (de) 1994-05-05
EP0391325B1 (de) 1994-01-19

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