Bsi bs en 50180 2 2015

BSI Standards PublicationBushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers Part 2: Requirement for bushing components Bushings above 1 kV up to 52

General

Permissible deviations for tolerances without specified limits: EN 22768 (series)

The following tables refer to the respective tables in EN 50180-1:2015, additional data are added.

Components for open-type bushings for 250 A, 12 kV to 36 kV

Table 1 – List of components, 250 A, 12 kV to 36 kV (see EN 50180-1:2015, Table 3)

Item Quantity Designation Brief description Remark

4 1 Gasket J 250 Insulating liquid resistant material

6 1 Packing a N 250 Insulating liquid resistant material

9 4 Nut EN ISO 4032 – M10 Corrosion-resistant steel

10 4 Washer EN ISO 7089 – 12 Corrosion-resistant steel

11 1 Spring washer b Corrosion-resistant steel

Version A: By means of a Clamping piece

Version B: By means of a Clamping ring

13 1 Clamping ring EN 50180-3 Corrosion-resistant

14 4 Clamping paw EN 50180-3 Corrosion-resistant a O-Ring according to individual agreement alternatively b Conical spring washer according to individual agreement alternatively.

For the purposes of this document, the terms and definitions given in EN 50180-1:2015 apply

Permissible deviations for tolerances without specified limits: EN 22768 (series)

The following tables refer to the respective tables in EN 50180-1:2015, additional data are added

4.2 Components for open-type bushings for 250 A, 12 kV to 36 kV

6 1 Packing a N 250 Insulating liquid resistant material

14 4 Clamping paw EN 50180-3 Corrosion-resistant a O-Ring according to individual agreement alternatively b Conical spring washer according to individual agreement alternatively.

Material: CW617N or equivalent acc to EN 12164

Material: CW614N or equivalent acc to EN 12164 The external shape of the cap is not compulsory a Thread M12 or drilling according to the applied lead or bolt.

Figure 1 – Terminal stud (Item 2) Figure 2 – Cap (Item 3)

Material: Insulating liquid resistant material,

Material: Gasket material for high pressure, based on synthetic fibers

Figure 3 – Gasket (Item 4) Figure 4 – Spacer (Item 5)

Material: Insulating liquid resistant material

Figure 3 – Gasket (Item 4) Figure 4 – Spacer (Item 5)

Material: Insulating liquid resistant material

Components for open-type bushings for 630 A, 12 kV to 36 kV

6 1 Packing b N 630 Insulating liquid resistant material

11 1 Spring washer c Corrosion-resistant steel

14 6 Clamping paw EN 50180-3 Corrosion-resistant a Copper according to individual agreement alternatively b O-Ring according to individual agreement alternatively c Conical spring washer according to individual agreement alternatively

Surfaces EN ISO 1302 Designation: Terminal stud D 630 b

The material used is CW617N or an equivalent as per EN 12164, or Cu-ETP R280 according to EN 13601 The specifications include a Thread M20 or drilling based on the applied lead or bolt Additionally, the terminal stud D and inner bolt can be manufactured as a single piece, depending on the manufacturer's decision.

Material: CW614N or equivalent acc to

Figure 7 – Cap (Item 3) Figure 8 – Gasket (Item 4)

Figure 9 – Packing (Item 6) Figure 10 – Spacer (Item 5)

Components for open-type bushings for 1 250 A – 3150 A, 12 kV to 36 kV

Table 3 – List of components, 1 250 A, 12 kV to 36 kV (see EN 50180-1:2015, Table 7)

5 1 Sealing ring J 1250 Insulating liquid resistant material

9 1 Gasket M 1250 Insulating liquid resistant material

12 2 Screw with cone point EN 27434 – M8 × 16

17 6 Clamping paw EN 50180-3 Corrosion-resistant

18 1 Gasket N 1250 Insulating liquid resistant material

4.4 Components for open-type bushings for 1 250 A – 3150 A, 12 kV to 36 kV

Surfaces EN ISO 1302 Designation of a terminal stud for 1 250 A:

Thread end acc To EN ISO 4753

Figure 11 – Terminal stud (Item 2) Figure 12 – Upper cap (Item 4)

Designation of a sealing ring for 1 250 A:

Designation of a lower cap for 1 250 A:

Figure 13 – Sealing ring (Item 5) Material: CW614N or equivalent acc to

Designation of a sealing ring for 1 250 A:

Designation of a lower cap for 1 250 A:

Figure 13 – Sealing ring (Item 5) Material: CW614N or equivalent acc to

Type: Flat headed screw EN ISO – M6 × 16

Gasket N (Item 18) Designation of a compression ring for 1 250 A:

Assembly: between Item 4 and Item 6 Function: to ensure reliable electrical connection of item 6 (if required)

Designation of a Potential ring for 1 250 A

Figure 20 – Spacer (Item 10) Figure 21 – Potential ring

Assembly: between Item 4 and Item 6 Function: to ensure reliable electrical connection of item 6 (if required)

Designation of a Potential ring for 1 250 A

Figure 20 – Spacer (Item 10) Figure 21 – Potential ring

Components for open-type bushings for 250 A and 630 A, 52 kV

Table 6 – List of components, 250 A, 52 kV (see EN 50180-1:2015, Table 11)

23 1 Spring washer a Corrosion-resistant steel

26 1 Isolation tube a Conical spring washer according to individual agreement alternatively.

26 1 Isolation tube a Brass according to individual agreement alternatively b Conical spring washer according to individual agreement alternatively.

Components for open-type bushings for 1 250 A to 3 150 A, 52 kV

Table 8 – List of components, 1 250 A, 52 kV (see EN 50180-1:2015, Table 13)

Designation of a terminal studs for 250 A:

D 630/52 M30 × 2 M20 261 133 85 Thread end acc to EN ISO 4753

Cu-ETP R280 acc to EN 13601

D 630/52 M30 × 2 M20 261 133 85 Thread end acc to EN ISO 4753

Designation of a compression ring for 1 250 A:

Figure 23 – Upper cap (Item 4) Figure 24 – Compression ring (Item 11)

Designation of a lower Cap for 1 250 A:

Figure 25 – Lower cap (Item 6) Figure 26 – Spacer (Item 10)

Tiêu đề	Bushing Components
Trường học	British Standards Institution
Chuyên ngành	Standards Publication
Thể loại	Standard
Năm xuất bản	2015
Thành phố	Brussels

Định dạng
Số trang	30
Dung lượng	1,15 MB