Final Thoughts

If we look at the world around us we will see a constant movement of individuals, groups of people and organizations, states and countries - all trying to get ahead, to improve their quality of life and their position in the world.


And this is great. The question is how do we do it? Unfortunately in many cases this is not done right because of the need for instant gratification. But instant gratification may not bring satisfaction in the long run - actually, it may lead to a lot of pain and suffering in the future.

When we think about that from the point of view of PAC systems engineering, we will see that there might be a conflict between the short term and long term perspective.

If we consider designing a new substation it may seem that the best way will be to do it as we always did - use copper cables for the analog and binary signals, use a limited number of protection and control elements with fixed settings calculated for a critical system condition. We know how to do that, how to commission and maintain it. So we don’t need to invest in new technology and in training people.

But if we look ahead and think about the amount of time and efforts that it will take to do it this way instead of delivering to the site a factory tested standard IEC 61850 based digital PAC system that:

  • Just needs to be connected with a few fiber optic cables to the smart primary equipment and energized
  • Does not require maintenance unless in case of equipment problems detected by the monitoring system
  • Adapts itself to the changing conditions
  • Can be tested remotely without having to drive to the substation in the middle of a storm or the desert heat

We will realize that the initial investment that will allow us to do it the right way will bring tremendous benefits in the future.

Looking as far ahead as we can will help us see the obstacles on the road ahead of us and will help us to react in time to avoid them and arrive safely at our destination. 

Relion advanced protection & control.
Protecting your electrical assets? today and tomorrow