35kv Ring Main Unit Sf6 Gas Insulated Switchgear

Overview 

The Gas insulated switchgear powers reliable distribution automation for industrial and commercial projects. This fixed ring main unit adopts SF6 load switch arc-extinguishing technology with full air insulation, delivering consistent performance across demanding grid environments. Moreover, its metal enclosed switchgear architecture combines a compact footprint with high insulation strength, supporting indoor installation in facilities ranging from high-rise buildings to pre-installed substations.

Operating Conditions

• Altitude: no more than 1000M; (If there are special requirements can be indicated when ordering)

• Ambient temperature: -15℃+40℃;

• Relative humidity: the daily average relative humidity is not more than 95%, the monthly average relative humidity is not more than 90%;

• Seismic strength: not more than 8 degrees;

• There is no serious pollution in the surrounding air, such as dust, smoke, chemical etchant, flammable gas, gasoline and salt.

Poduct Features

• Five-Prevention Interlocking：Every three phase switchgear unit integrates a full five-prevention mechanical interlock system to eliminate all common operational errors.

• SF6 Permanent Magnet Arc Extinction：The SF6 load switch uses permanent magnet rotating arc technology, delivering strong arc-extinguishing capacity with minimal contact wear.

• 20-Year Maintenance-Free Operation：The fully sealed epoxy resin shell with 0.05MPa SF6 fill allows this power distribution unit to operate safely for over 20 years under normal conditions.

• Flexible Modular Cabinet Layout：This distribution cabinet supports free combination of inlet, outlet, metering, contact, and cable lifting modules to match any substation scheme.

• Smart Grid Remote Control：Equipping this hv switchgear with an electric mechanism and microcomputer measurement device enables full telemetry, remote communication, and remote control.

• High Insulation Fracture Strength：This high voltage rmu features large creepage distance design and pressure protection at the outlet end, ensuring stable insulation performance long-term.

• Compatible with Leading OEM Switches：This electrical switchgear accepts multiple types of internationally sourced load switches and vacuum circuit breakers per project requirements.