BS EN 61148:2012
$142.49
Terminal markings for valve device stacks and assemblies and for power conversion equipment
| Published By | Publication Date | Number of Pages |
| BSI | 2012 | 30 |
This International Standard is applicable to the terminal markings for the main circuits of valve device stacks and assemblies, and of integrated conversion equipment. The terminal markings refer to stacks, assemblies and equipment comprising semiconductor valve devices.
NOTE 1 Terminal markings for auxiliary circuits, including gate terminals and non-integrated conversion equipment with separate manufacturing of its components and their interconnection only after installation on site, are not considered in this standard.
For such equipment the relevant standards, if any, for the individual components apply.
Gate terminal markings are given in 6.3.
Terminal markings for other circuits such as protective conductor are not considered in this standard.
The object of this standard is to specify a logical alphanumeric marking system for the identification of the external main terminals of the main power circuits in a stack, valve device assembly or integrated conversion equipment, which is applicable for the purpose of reference in circuit diagrams, catalogues, descriptions, and information exchange and storage.
In the case of stacks and assemblies, alphanumeric terminal marking systems are indicated for those converter connections which are the most important and most commonly used ones.
Terminal marking systems making use of graphic symbols or identifying colours are not considered in this standard.
NOTE 2 The terminals of auxiliary circuits should be marked such that they may be clearly identified.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 8 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Method of identifying terminals |
| 10 | 5 Terminal marking for valve device stacks and assemblies 5.1 Single and double way connections |
| 11 | Figures Figure 1 – Typical markings in single arm connections |
| 12 | Figure 2 – Star connection with two arms Figure 3 – Star connection with three arms |
| 13 | Figure 4 – Three groups with two arms Figure 5 – Two groups with three arms Figure 6 – Assembly for d.c. chopper |
| 14 | Figure 7 – Pair of arms Figure 8 – Bridge connection |
| 15 | Figure 9 – Double bridge connection Figure 10 – Anti-parallel bridge connection |
| 16 | 5.2 Bi-directional connections Figure 11 – Series connection of bridges Figure 12 – Fully controllable anti-parallel pairs Figure 13 – Half-controllable anti-parallel pairs |
| 17 | Figure 14 – Example for six-phase supply |
| 18 | Figure 15 – Three-phase star connection Figure 16 – Three-phase star connection with neutral Figure 17 – Double two-phase star connection with neutral Figure 18 – Polygon connection |
| 19 | Figure 19 – Legs for voltage stiff converters Figure 20 – Bridge connection for voltage stiff converter (two-level) |
| 20 | 6 Marking of external main terminals of integrated conversion equipment 6.1 A.C. terminals Figure 21 – Three-level connection for inverter |
| 21 | 6.2 D.C. terminals |
| 22 | Figure 22 – Single-phase a.c./d.c. converter |
| 23 | Figure 23 – Double converter Figure 24 – Three-phase rectifier with two sections and d.c. side centre tapfor connection to a mid-wire conductor Figure 25 – Direct (or indirect) d.c. converter with two independent sections |
| 24 | 6.3 Marking of gate terminals Figure 26 – Indirect (or direct) a.c. converter |
| 25 | Figure 27 – Three-phase star connection with neutral Figure 28 – Bridge connection Figure 29 – Thyristor with gate unit |
| 26 | Figure 30 – Three-phase star connection with power transistors Figure 31 – Pair of power transistors with anti-parallel diodes Figure 32 – Power transistor with gate driver |
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BS EN 61148:2012
Terminal markings for valve device stacks and assemblies and for power conversion equipment Published By…
