Abstract

This paper reviews kinds of 110kV transformer percentage restraint differential protection’s principles from differential types and different manufacturers. Based on the Adobe AIR cross-platform technology, a new system on mobile terminal is carried out to support kinds of transformer protections’ calibration in one auxiliary application. On Android platform and iOS platform, this system is able to calculate testing currents, predict actual action boundary points and draw restraint characteristic curve. All the functions improve calibration efficiency and logic verification reliability greatly.

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