By allowing electricity to be transferred from one circuit to another at changing voltage levels, transformers improve the safety and efficiency of power systems across a wide range of applications.
However, the UK’s extensive transformer fleet is facing a looming potential resilience crisis. Over 70% of transformers in the UK have been in operation for 25 years or more, with these lengthy average lifespans increasingly exceeding intended design-life. This has seen demonstrable growth in the need for transformer maintenance and refurbishment. For organisations embracing a robust power resilience strategy, it is vital that aging transformers do not become a point of failure.