National Grid has upgraded three of its substations with new equipment to enhance voltage control and strengthen the network’s stability.
Shunt reactors – high voltage electrical devices which absorb excess reactive power in alternating current (AC) transmission networks – have been installed and connected at the Cottam, Wylfa and Willington substations.
Each weighing around 130 tonnes, and measuring over seven metres long and almost four metres high, the shunt reactors will enable more efficient network management.