Product Overview
XIRIA is Eaton’s next-generation environmentally-friendly green gas insulated Ring Main Unit (RMU). It is designed for 12kV power distribution systems and is characterized by its high level of operational safety, compact footprint, and modular design flexibility.
Both the primary and mechanical components are housed in a fully sealed stainless steel tank filled with 0.02 MPa dry air, which effectively protects the system against environmental influences. The product range offers two basic function versions:
● Vacuum Load Break Switch — Designed for ring cable connections, providing reliable switching performance in medium voltage distribution networks.
● Vacuum Circuit Breaker — Engineered for protecting transformers and cable connections, offering advanced fault protection capabilities.
A key design philosophy of XIRIA is the intentional selection of circuit breaker protection combined with an electronic relay — a modern, safe, and flexible alternative to traditional fuse protection. This approach also makes XIRIA highly suitable for deployment in automated distribution networks, responding perfectly to evolving electricity distribution requirements both now and in the future.
Product Features
● Green and Clean — XIRIA is constructed exclusively from environmentally friendly materials. The insulation medium is clean, dry air, and the switching medium is vacuum. At the end of its service life, the unit is easy to dismantle — all materials are clearly labelled and can be reused or recycled, avoiding excessive costs and environmental taxes.
● Maintenance-Free — All live primary parts and mechanisms are installed in a fully enclosed housing, preventing dust, moisture, and other environmental influences from affecting operation. The switching mechanism is designed with a minimum number of parts and uses no lubricants, significantly reducing inspection and maintenance costs without compromising operational safety.
● Intrinsically Safe — XIRIA is fitted with directly visible isolation through inspection windows in the front panel, making the isolating distance between cable and busbar system immediately visible. A visible, short-circuit proof earthing can be performed via the load break switch or circuit breaker. The fully sealed stainless steel housing combined with dry air reduces the risk of internal faults to an absolute minimum, and the tested arc-proof housing provides additional protection for operating personnel.
● Compact Design — XIRIA is one of the smallest ring main units of its kind. This high degree of compactness results from the combination of Eaton’s electrical field control technology and extremely compact vacuum interrupters. The compact footprint offers direct financial benefits in new buildings and when refurbishing existing transformer stations due to minimal floor area requirements.
● Extensible Design — Modular single panels and extensible plugs have been developed to meet the requirements of metering panels and extensible solutions. Users can easily conduct circuit extension and add functions such as metering, providing flexibility for future expansion needs.
● Ready for Automated Networks — XIRIA is completely ready for use in fully automated networks. Various modular options are available for remote signalling and remote control, which can be quickly and easily added in the future. This forward-looking design ensures that users will not be left with outdated control, display, or communication standards.
Usage Scenarios
● Power Plants — Suitable for electrical distribution within power generation facilities, providing reliable and safe medium voltage switching solutions.
● Commercial Buildings & Shopping Centers — Ideal for power distribution in commercial real estate, ensuring uninterrupted supply to retail spaces, offices, and public areas.
● Main Feeder Stations — Designed for primary distribution nodes in medium voltage networks, offering robust switching and protection capabilities for critical infrastructure.
● Power Distribution & Transformer Stations — Applicable in substations and transformer stations for efficient power distribution and system protection in urban and industrial distribution networks.
● Industry & Light Industry — Well-suited for manufacturing facilities and light industrial sites that require reliable, compact, and environmentally friendly power distribution solutions.
● Residential Applications — Perfect for residential developments and housing estates, providing safe and dependable electrical distribution with minimal maintenance requirements.
