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BS EN 50673:2019

BS EN 50673:2019

$102.76

Plug-in type bushings for 72,5 kV with 630 A and 1 250 A for electrical equipment

Published By Publication Date Number of Pages
BSI 2019 18
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This document is applicable to plug-in type bushings, according to EN 60137, 72,5 kV, rated currents from 630 A up to 1 250 A and frequencies from 15 Hz up to 60 Hz for single or three-phase arrangements in electrical equipment like liquid filled transformers or gas insulated switchgear and controlgear. It complements and amends, if necessary, the relevant EN standards.

The application of such plug-in type bushings is derived from EN 50180 and EN 50181 but applied for higher voltages with described deviations to EN 50299-2 and EN 62271-209.

This standard does not cover the connection assembly as described in EN 50299-2 and EN 62271-209.

EN 60137 and HD 632 series outline the qualification, type test, routine and sample test of plug-in type bushings according to this standard.

This document establishes essential dimensions and testing procedures, to ensure adequate mounting and interchangeability of mating plug-in separable connectors of equivalent ratings.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Rated values
4.1 Standard values of maximum voltage (Um)
4.2 Standard values of rated current (Ir)
5 Requirements
5.1 Compliance
5.2 Mechanical forces
5.3 High voltage shielding electrode
9 5.4 Ground shielding electrode
5.5 Transformer drying process
6 Tests
6.1 General
6.2 Interchangeability of plug-in type bushings and separable connectors
10 7 Dimensions and Applications
7.1 Current- carrying connection interfaces
7.2 Plug-in type bushing mounting distance
7.3 Detail dimensions of plug-in type bushings
7.3.1 General
7.3.2 Outside cone plug-in type bushings
7.3.2.1 General
7.3.2.2 Interface dimensions to the separable connector for all kind of plug-in type bushings
11 7.3.2.3 Dimensions of plug-in type bushings for liquid filled transformers
12 7.3.2.4 Plug-in type bushings for other than liquid filled transformers
7.3.3 Inside cone plug-in type bushings
7.3.3.1 Interface dimensions to the separable connector for electrical equipment.
13 8 Requirements for plug-in type bushing fixations to apparatus
8.1 General
8.2 Outside cone plug-in type bushings
15 8.3 Inside cone plug-in type bushings

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BS EN 50673:2019
$102.76