Ring Main Units (RMU Electrical) play a crucial role in the safe and continuous distribution of medium voltage power. With urban infrastructure rapidly evolving, RMUs have become essential for compact, modular, and maintenance-friendly switchgear systems. Their enclosed design and flexible configuration make them highly suitable for both indoor and outdoor installations.
RMU electrical systems are widely used across utilities, industrial facilities, and renewable energy installations. Their compact footprint allows easy integration into secondary substations, commercial buildings, and residential power networks. For underground cable networks, RMUs ensure fault isolation and load switching without the need for large equipment rooms.
In addition to utility networks, RMUs are also applied in:
·Smart Grids: Enabling remote monitoring and automation via SCADA systems.
·Renewable Energy: Integrating solar and wind sources into the medium-voltage grid.
·Data Centers & Hospitals: Providing high reliability and uninterrupted power.
·Urban Infrastructure: Supporting compact substations in densely populated zones.
·Sealed and gas-insulated for minimal maintenance
·Modular design for configuration flexibility
·Enhanced operator safety with interlocking mechanisms
·Long service life under harsh environmental conditions
·Suitable for voltage levels up to 40.5kV
RMUs are ideal where space constraints, service continuity, and safety are top priorities. Their fault interruption and load switching capabilities reduce outage times, increase network reliability, and support automation upgrades without major infrastructure overhauls.
Putai offers a range of RMU electrical solutions for 12kV to 40.5kV applications, featuring safe, modular, and maintenance-free operation. Our RMUs are fully compliant with IEC standards and engineered for long-term reliability in various grid environments.
 Switchgear.jpg)
.jpg)
-1.jpg)
-1.jpg)
English
Pусский
Español