Recently, Efacec deployed a new substation automation system at the EDM’s transmission substation Matambo, in the northern part of Mozambique.

The contracted scope of supply for the 220/66 kV substation, comprised the new automation, control and protection system, based on Efacec CLP 500SAS platform, including system design and commissioning. Furthermore, the supply included new metering units and integration of remote supervision and control from Tete substation.

The CLP 500SAS installed at the Matambo substations integrates Efacec’s station server UC 500E, user interface HMI 500, bay control units BCU 500, and protection relays from Efacec for transformer voltage control, in addition to third parties, namely from Siemens and ABB. At the substation level, the IEC 61850 standard was implemented for seamless equipment communication and integration.

This automation project was integrated in a wider contract for the expansion of this important substation that feeds some of the biggest coal concessions in Mozambique, connecting Cahora Bassa to the 220 kV grid. All site works were developed with the substation under operation. This contract was led by the Saudi-based group NCC (National Contracting Company) that has selected Efacec Automation as a supplier of the automation, control and protection solution.