SF6 Insulated RMU Gas Insulated Ring Main Unit Designed for Medium Voltage Electrical Distribution and Network Management

The XGN15-12 SF₆ Insulated Ring Main Switchgear (RMU) is a compact, metal-enclosed medium-voltage switchgear designed for reliable secondary power distribution. Featuring an SF₆ gas-insulated load break switch (LBS) as its core switching device, it can be configured with vacuum circuit breakers (VCBs), fuse combinations, metering units, and other functional modules to meet various distribution requirements.

The switchgear adopts a modular, air-insulated integrated structure, providing excellent operational safety, compact dimensions, flexible configuration, and dependable mechanical interlocking. Its fully enclosed design minimizes maintenance while ensuring stable performance in demanding operating environments.

Designed for 12 kV, 50 Hz three-phase AC power systems, the XGN15-12 is widely used in utility distribution networks, industrial plants, commercial buildings, residential communities, hospitals, schools, renewable energy projects, and compact substations, providing reliable power distribution, cable switching, transformer protection, and network sectionalizing.

Compact metal-enclosed structure with space-saving design

SF₆ gas-insulated load break switch for reliable switching performance

Modular configuration with fuse switch units, vacuum circuit breaker units, and metering units

Complete mechanical and electrical interlocking for enhanced operational safety

High insulation performance and low maintenance requirements

Flexible cable connection and easy installation

Suitable for ring network, radial network, and terminal power distribution systems

Long service life with stable and reliable operation

The XGN15-12 SF₆ Ring Main Unit is ideal for:

Utility distribution networks

Ring main distribution systems

Industrial and mining facilities

Commercial and office buildings

Residential power distribution

Hospitals and educational institutions

Wind and solar power projects

Compact and prefabricated substations

Infrastructure and municipal power systems

Altitude: ≤ 2,000 m (Higher altitude versions available upon request)

Ambient Temperature: -35°C to +40°C

Relative Humidity:

Daily average ≤95%

Monthly average ≤90%

Installation Environment: Free from conductive dust, corrosive gases, explosive atmospheres, excessive moisture, severe vibration, and fire hazards.

FAQ

What is an XGN15-12 Ring Main Unit?

The XGN15-12 Ring Main Unit (RMU) is a compact medium-voltage switchgear designed for 12kV power distribution systems. It uses an SF₆ insulated load break switch to provide safe, reliable, and efficient power distribution.

What is the rated voltage of the XGN15-12?

The rated voltage is 12kV, suitable for three-phase AC 50Hz distribution systems.

Where is the XGN15-12 RMU used?

It is widely used in:

Utility substations

Industrial plants

Commercial buildings

Residential communities

Renewable energy projects

Wind farms

Solar power plants

Compact substations

Can the RMU be customized?

Yes. We provide OEM and customized solutions, including different circuit configurations, current ratings, protection schemes, enclosure materials, and communication options.

Does the RMU comply with IEC standards?

Yes. The XGN15-12 RMU is designed and manufactured in accordance with relevant IEC standards. Customized solutions can also be supplied to meet local utility requirements.