MRS1 - Negative sequence relay

The MRS1 relay is a negative sequence protection relay with universal application. It serves for negative sequence protection of three-phase generators. With a large number of different tripping characteristics and adjustment possibilities, the tripping characteristic can be made suitable for almost every type of generator with regard to its special thermal time-constant. There is a choice between an independent or an inverse time tripping characteristic. In case of low unbalanced load, a warning is given after an adjustable time delay. In case of inadmissible high unbalanced load, the MRS1 relay trips in accordance with the set characteristic.

FEATURES & FUNCTIONALITY

The MRS1 relay is a negative sequence protection relay with universal application. It serves for negative sequence protection of three-phase generators. With a large number of different tripping characteristics and adjustment possibilities, the tripping characteristic can be made suitable for almost every type of generator with regard to its special thermal time-constant. There is a choice between an independent or an inverse time tripping characteristic. In case of low unbalanced load, a warning is given after an adjustable time delay. In case of inadmissible high unbalanced load, the MRS1 relay trips in accordance with the set characteristic.