We are pleased to announce that the factory acceptance test of DB.ATT.21 380/154/33kV Vize Havza AIS substation Automation/Control System based on IEC 61850 has been completed successfully, with participation of TEİAŞ. Within the scope of DB.ATT.21, AC/DC Distribution, Compensation, Control&Relay, Busbar Protection and Automation/Control system panels, design and engineering conducted by GES Genel Elektrik Sistemleri Yapım ve Mühendislik A.Ş. and manufactured by GEM Genel Elektrik Montaj A.Ş.