Rmu Ring Main Unit

Both oil and gas insulated ring main units are the result of extensive innovation using advanced technologies and are subjected to extensive testing and safety standards.

Rmu ring main unit.

Rmu ring main units sfa rm units are designed to supply reliable energy and protect electrical equipment in secondary distribution networks up to 36 kv. Ring main unit rmu is a compact enclosed and sealed type of switchgear used for medium voltage power distribution. Different combinations of these primary switching devices within the unit are commonly used. Advantages of ring main unit.

The primary switching devices can be either switch disconnectors or fused switch disconnectors or circuit breakers. It includes in one unit two switches that can connect the load to either or both main conductors and a fusible switch or circuit breaker and switch that feed a distribution transformer. Ring main unit rmu is a compact sealed for life metal enclosed switchgear widely used in urban power distribution network. It is a complete switchgear in itself.

In an electrical power distribution system a ring main unit rmu is a factory assembled metal enclosed set of switchgear used at the load connection points of a ring type distribution network. Ring main unit is a compact gas insulated switchgear cubicle equipped with sf6 switch disconnector and sf6 circuit breakers. You see rmu is considered an all in one solution. A ring main unit includes a combination of one or more load break switch lbs cum earth switch as incomer and outgoing feeder and vacuum circuit breaker with associated disconnector and earth switch for load feeders.

A ring main unit rmu is a totally sealed gas insulated compact switchgear unit. A ring main unit is no doubt a ground breaking solution. That makes it a lot simpler to handle the various challenges of electrical distribution. The ring main unit rmu is a secondary power distribution equipment.

The secondary power distribution equipment refers to the medium voltage switchgear that redistributes the electrical energy of the primary power distribution equipment that receives the high voltage transformer. The below figure shows the rmu with 3 incomers and 1 outgoing feeder to distribution transformer. What is ring main unit rmu.