Design of virtual reclosing system

Abstract

Adaptive auto-reclosure has many advantages over the conventional approach. For the single-phase grounding fault, two-phase grounding fault, two-phase fault, this paper analyzes the characteristic of post-fault voltage. And this paper distinguishes the transient faults and permanent faults on transmission lines using voltage criterion. The concept of virtual instruments is also introduced in this paper, and the virtual reclosing system is developed which takes the graphical programming software LabVIEW as software development platform. This system is excellent for friendly interface and simple operation. It can be applied to the test research and lab teaching of the new method of adaptive auto-reclosure with practical significance. © 2011 Springer-Verlag.