| 摘要 |
The present invention relates to a method in a power transmission or distribution system, an operator terminal in such a system as well as to a computer program product for such an operator terminal. The operator terminal presents graphical objects (a, b, c, d, e, f, g, h, i, j, k, l) representing electrical power transmission control stations together with graphical objects representing power lines on a display, and changes the degree of abstraction of the presentation based on an operator selection or an own selection. A change from a lower to a higher degree involves moving a group of graphical objects including control stations closer to a condensation centre point (C1, C2, C3, C4, C5) on a power line that is common for this group, and a change from a higher to a lower condensation degree involves moving the group away from the condensation centre point. |
