1980. FIR introduced the Modulex1 line. The Micromho distance relay was launched by GEC Measurements, introducing microprocessors to protective relays for carrying out the scheme logic functions. 1981. The MIDOS system of modular integrated draw-out relays was launched. It featured the MCGG overcurrent relay which, for the first time used the microprocessor for protection measurement. 1983. FIR joined the GEC Group.