To address the retrofit challenges of aging ring main units (RMUs), this adapter connector is designed with one end featuring a European‑style termination for connection to the RMU, and the other end equipped with a 10 kV medium‑voltage quick‑lock plug for connection to bypass flexible cables. It resolves the following issues:
Retrofitting RMUs without spare units with a quick‑connection interface to expand functionality;
Upgrading existing spare units into quick‑connection interfaces;
Adding external expansion units to aging RMUs, providing externally installed new units equipped with quick‑lock terminals for connection to medium‑voltage generator vehicles and bypass systems.