Time Reliability

by Galina Antonova, ABB Power Grids, Canada

This article describes what can happen to power system applications if incorrect time is used, why it happens, and how we can fix it. Numerous power system applications rely on synchronization to local or global time such as Coordinated Universal Time (UTC), with varying degree of accuracy. Examples of time accuracy requirements are depicted in Figure 1. More

Relion advanced protection & control.
BeijingSifang June 2016