Enclosure for voltage transformer and corresponding voltage transformer

Patent metadata

Field	Value
Publication number	US-10304609-B2
Application number	US-201415027261-A
Country	US
Kind code	B2
Filing date	Dec 30, 2014
Priority date	Dec 31, 2013
Publication date	May 28, 2019
Grant date	May 28, 2019

Abstract

An embodiment of the present invention relates to an enclosure for a voltage transformer, including a shell. The shell is provided with a plurality of packaging spaces for packaging bodies of the voltage transformer. Each of the packaging spaces is provided with a closed end and a sealed end, and every two adjacent packaging spaces are in communication with each other. In the enclosure for a voltage transformer of an embodiment of the present invention, the size of the enclosure for a voltage transformer along an arrangement direction is reduced, as a result of which, the entire enclosure for a voltage transformer has a compact structure and a small occupied space. An embodiment of the present invention further relates to a voltage transformer including the above-mentioned enclosure for a voltage transformer.

First claim

The invention claimed is:

1. A voltage transformer, comprising:
an enclosure for a voltage transformer including
a shell defining a plurality of packaging spaces for packaging bodies of the voltage transformer, each of said plurality of packaging spaces being further defined by a closed end, a sealed end and a shell reinforcing rib, every two adjacent packaging spaces of said plurality of packaging spaces being separated from an adjacent packaging space by the shell reinforcing rib, the shell reinforcing rib being in contact with and extending from the closed end to and in contact with the sealed end.

2. The voltage transformer of claim 1 , wherein said packaging spaces are arranged in a straight line.

3. The voltage transformer of claim 2 , wherein the shell reinforcing rib is arranged between every two of the adjacent packaging spaces of said packaging spaces.

4. The voltage transformer of claim 2 , wherein said shell reinforcing rib is provided with a communicating hole for communicating the every two adjacent packaging spaces with each other.

5. The voltage transformer of claim 2 , further comprising a cover plate, wherein said cover plate is sealingly connected to said sealed ends of said packaging spaces.

6. The voltage transformer of claim 5 , wherein said cover plate is provided with a plurality of cover plate reinforcing ribs corresponding to a respective shell reinforcing rib, and wherein said cover plate reinforcing ribs are jointed with said shell reinforcing ribs.

7. The voltage transformer of claim 5 , wherein said cover plate is provided with a gas inlet for introducing an insulating gas.

8. The voltage transformer of claim 6 , wherein said cover plate is provided with a gas inlet for introducing an insulating gas.

9. The voltage transformer of claim 1 , wherein said shell reinforcing rib defines a communicating hole for fluidly connecting at least one set of the every two adjacent packaging spaces with each other.

10. The voltage transformer of claim 1 , further comprising a cover plate, wherein said cover plate is sealingly connected to the sealed end of said packaging spaces.

11. The voltage transformer of claim 10 , wherein said cover plate is provided with a plurality of cover plate reinforcing ribs corresponding to said shell reinforcing ribs,
wherein said cover plate reinforcing ribs are in contact with said shell reinforcing ribs.

12. The voltage transformer of claim 11 , wherein said cover plate is provided with a gas inlet for introducing an insulating gas.

13. The voltage transformer of claim 10 , wherein said cover plate is includes a gas inlet for introducing an insulating gas.

14. The voltage transformer of claim 1 , wherein each of said packaging bodies includes a winding and an iron core, said iron core including an iron core post for mounting said winding and an iron yoke connected to said iron core post, said iron yoke being shaped like a sheet.

15. The voltage transformer of claim 14 , wherein an included angle between an extension direction of said iron core post and an arrangement direction is 0, 90 or 45 degrees.

16. The voltage transformer of claim 15 , wherein an included angle between an extension direction of said iron core post and said arrangement direction is 0, 90 or 45 degrees.

17. The voltage transformer of claim 14 , wherein said voltage transformer is a three-phase voltage transformer.

18. The voltage transformer of claim 1 , wherein said voltage transformer is a three-phase voltage transformer.

Assignees

• Siemens Ag

Inventors

• Wang Jie
• Zhang xiao hong

Classifications

• H01F38/38

  for polyphase AC · CPC title

• H01F27/02 Primary

  Casings · CPC title

• H01F27/321

  using a fluid for insulating purposes only · CPC title

• H01F27/38

  Auxiliary core members; Auxiliary coils or windings · CPC title

• H01F27/20

  Cooling by special gases or non-ambient air · CPC title