My Bonomi

RMU
Ring Main Unit

Energy - Smart Grid

RMU

Bonomi RMUs are a GIS (Gas Insulated Switches) metal enclosed for medium voltage applications (12 – 17.5 – 24 – 36 kV).

This technology guarantees excellent product performance and does not require maintenance, and is also indicated for insertion into ring networks with voltage up to 36 kV – 630 A – 20 kA and to power transformers of various voltages.

The RMU allows extensibility based on installation needs in addition to the possibility of remote control and activation.

RMU features

Features kVrms 12 17,5 24 36
Rated frequency Hz 50 – 60
Earth industrial frequency insulation test kVrms 28 38 50 70
Earth lightning impulse insulation test kVpeak 75 95 125 170
Insulation test on industrial frequency disconnection kVrms 32 45 60 80
Insulation test on sectioning kVpeak 85 110 145 195
Thermal current A 630
Breaking capacity A 630
Short time current at 1 sec. kVarms/peak 20/25.5
Making capacity kApeak 52.5
Mechanical endurance M1
Electric class E2

Earth switch features

Features kVrms 12 17,5 24 36
Making capacity kApeak 52.5
Mechanical endurance M1
Electric class E2

Circuit breaker features

Features kVrms 12 17,5 24 36
Short time current (1 sec.) kArms/ peak 25/65 16/42
Mechanical endurance M2
Electric class E2

Our solutions - Smart Grid