Abstract With the continuous progress of power grid digitization, Building Information Model (building information modeling, BIM) technology can no longer meet application display requirements engineering. Power model (grid model, GIM) uses parameterization to build a 3D which reduces redundancy and is conducive digital transfer project. This paper briefly analyzes structure GIM data model. It ...

This paper presents an algorithm for adaptive determination of the dead timeduring transient arcing faults and blocking automatic reclosing during permanent faults onoverhead transmission lines. The discrimination between transient and permanent faults ismade by the zero sequence voltage measured at the relay point. If the fault is recognised asan arcing one, then the third harmonic of the zero...

Altering the microstructure in order to improve tensile properties of bow shackles resulted inconsistency fatigue performance. This raises question whether life can be attributed microstructural changes along profile shackle or decarburization at surface. Bow forged from 080M40 (EN8) material were subjected different heat treatments alter microstructure. The five load cases, which represented t...