摘要 |
Filter equipment in an HVDC installation has a plurality of branches tuned to different frequencies. Each branch comprises a main capcitor (e.g. C11) and an inductor (L11), wherein the main capacitor comprises a plurality of series-connected capacitor units arranged in a substantially vertical stand. The main capacitors (C11, C13, C24, C36) for at least two branches are each arranged in a separate capacitor stack in one and the same stand. The stacks are electrically and mechanically interconnected at one end by means of connection members (MF), and otherwise separated and arranged at such a large distance from one another that the required insulation distance is obtained between the stacks. |