Sollatek supplied two Automatic Voltage Regulators (AVRs) for the onshore substation associated with the Thanet offshore transmission connection at Richborough. The AVRs were used to regulate and stabilise the low-voltage auxiliary supply feeding the substation’s control equipment and ancillary appliances, with one AVR operating and the other acting as a switchable backup. Each AVR was described as a three-phase unit rated at 450 amps per phase.