The MCAG relays is designed to provide high-speed protection to power system plants such as generators, reactors, busbars, motors and the individual windings of power transformers. It is highly equipped with current-calibrated busbar and robust construction. It even features a High stability, fast and reliable operation (25ms at 5 x setting), Easy integration into 4U height MIDOS rack schemes and Highly-tuned to the fundamental. It has unique 3 element relay supplied in a 30TE (size 6 inch) case, Supplied with a stabilising resistor, Optional Metrosil available to limit CT saturation voltage Use with MVTP where scheme buswire supervision is needed.