Toshiba announces the launch of GRW200, an advanced numerical feeder differential protection relay for use over metallic pilot-wire or direct fibre optic communication channels. GRW200 supports a unique pilot-wire interface enabling direct connection of the relay to existing protection pilots, while also supporting an upgrade path to fiber optic.
In addition to phase-segregated line differential protection, GRW200 supports integrated channel monitoring, overcurrent guard scheme, inrush restraint and a range of back-up protection functions, all in a compact 4U package. GRW200 also offers reliable redundant communication within Substation Automation Systems using IEC 61850, PRP, HSR and RSTP. Application support is provided by the user-friendly GR-TIEMS software package.