Being set up at the National Renewable Energy Centre (Narec) with Doble Engineering, the new transformer adds to the facility's existing 1MV DC voltage supply capability, while upgrading the laboratory to handle 50Hz power frequency withstand testing as part of the type test requirement on equipment for use on systems with operational voltage levels up to 400kV.

The transformer will also be used to carry out insulation breakdown testing on HV power cables, such as partial discharge, radio interference voltage and tan delta tests.

Testing