Ormazabal's protection and automation system in a comprehensive reconstruction project

This is a renovation project belonging to State Grid and located in Baijia Village, Zouping City, Shandong Province.

Ormazabal supplied the cgm.3 and gae switchgear, equipped with a protection and automation system, as well as metering panels on both the 12kV and 40.5kV sides, to replace the old pole-mounted switchgear. They were installed separately in two large outdoor switching stations.

gae switchgear Technical data: 12 kV – 630 A – 20 kA 4s Scope of supply: gae 1pt-5lsv-1a1-5lsv-1pt   cgm.3 switchgear Technical data 40.5 kV – 630 A – 20 kA Scope of supply: cgm.3 4v-1pt

Ormazabal Solution and Challenge:

The previous power supply was frequently cut off due to the old pole-mounted distribution board, which did not work properly, especially on rainy days. The level of automation was low and could not be managed remotely. Furthermore, the project site is located in a relatively rural village with narrow road access, making repair work more difficult and time-consuming.

Ormazabal was chosen to upgrade the system by introducing GIS switchgear with its protection and automation system specifically designed for Smart Grid. The DTU (Data Transfer Unit) was also a newly added module to the system, integrating GPS and GPRS modules for communication with SCADA. All modules are 5G-ready. This provides all the necessary visibility into the stations’ real-time situation. Operations can now be carried out remotely, and the continuity of the power supply is guaranteed to the maximum extent possible.

Key Customer Benefits:

• Flexibility to adapt our solution to specific customer requirements
• Smart level upgrade of stations (protection, automation, metering, communication)
• Turnkey solution with all assembly and testing carried out at the Ormazabal factory
• Minimal on-site work