The Lucy Electric 11kV FRMU (Fuse Ring Main Unit) is a high-performance, medium-voltage sThe Lucy Electric 11kV FRMU (Fuse Ring Main Unit) is a high-performance, medium-voltage switchgear designed for secondary distribution networks, featuring a modular, extensible design that allows for easy site expansion on either side without the need for specialized tools or gas handling. Moving away from traditional oil-insulated technology, this modern unit utilizes SF6 gas for insulation and is housed in a hermetically sealed, robotic-welded stainless steel tank, ensuring it is maintenance-free with a life expectancy of over 30 years and significantly reducing fire risks. It operates at a rated voltage of 11kV (up to 12kV) with a current rating typically around 200A for the fuse switch and up to 630A for ring switches, providing robust transformer protection via high-voltage fuses and a 20kA or 21kA short-circuit breaking capacity. Designed for both indoor (IP41) and outdoor (IP54) environments, the FRMU prioritizes operator safety through a comprehensive mechanical interlocking system, an anti-reflex mechanism to prevent accidental opening under fault, and an intuitive front-panel mimic diagram for clear status identification.witchgear designed for secondary distribution networks, featuring a modular, extensible design that allows for easy site expansion on either side without the need for specialized tools or gas handling. Moving away from traditional oil-insulated technology, this modern unit utilizes SF6 gas for insulation and is housed in a hermetically sealed, robotic-welded stainless steel tank, ensuring it is maintenance-free with a life expectancy of over 30 years and significantly reducing fire risks. It operates at a rated voltage of 11kV (up to 12kV) with a current rating typically around 200A for the fuse switch and up to 630A for ring switches, providing robust transformer protection via high-voltage fuses and a 20kA or 21kA short-circuit breaking capacity. Designed for both indoor (IP41) and outdoor (IP54) environments, the FRMU prioritizes operator safety through a comprehensive mechanical interlocking system, an anti-reflex mechanism to prevent accidental opening under fault, and an intuitive front-panel mimic diagram for clear status identification.
