Low Energy Automated Networks (LEAN) Project

Posted by: Gary
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We’re delighted to be involved in the Low Energy Automated Networks (LEAN) project with SEPD aimed at reducing electrical losses on 33kV/11kV networks.

Transformer operation results in an ongoing state of energy consumption due to energising the core of each transformer (known as no-load losses). One aspect of the LEAN project will look at reducing these losses by switching off some transformers using a Vizimax SynchroTeq MV to control transformer switching. This will minimise inrush currents during energisation through point-on-wave switching.

The results of this will be evaluated over a fixed period and if found to be effective could be rolled out across the distribution network in the future. We have just commissioned the first of the trial units and saw the inrush current controlled to a consistent 15A!