For a distribution network that constitutes a number of ring shaped grids, the ring main unit (RMU) acts a variant of switchgear and works at a nominal system voltage of 11KV. Since these are dangerous and essential switch devices in a distribution network that aids in supplying power from back-up system in case a hindrance in main supply source. RMU are used by delivery transformers to measure, meter, and provide uninterrupted ... Read more
