— SUCCESS STORY Medium-voltage solution to Erongo RED’s Paratus substation Walvis Bay, Namibia Secure and efficient power supply and reliable interoperability of the communication system in a multi-vendor environment. Project at a glance Customer: Erongo RED Segment: Utility ABB products: Air-insulated switchgear UniGear ZS1, Is-limiters, Relion® 620 protection and control relays, REA arc protection system, Protection and control IED manager PCM600 Customer challenge An upgrade of the existing electrical infrastructure was needed to meet the increase in power demand. To ensure system reliability, the customer also identified the need for a highly integrated system. The question arose of reliable interoperability between the different protection relays and the control system,

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