EARTH FAULT WARNING RELAY

Model HV-EXP5218
EARTH FAULT WARNING RELAY module with insulated panel, Multifunction three phase overvoltage/ undervoltage relay. Three-phase voltage relay, suitable for protection of HV, MV, LV power transmission and distribution systems. The relay must measure the true R.M.S. value of the 3 phase to neutral voltages fed to three transformers. It must be provided with two under voltage elements, two over voltage elements, one under frequency element, one over frequency element, oneomopolar sequence over voltage element, one negative sequence over voltage element, one positive sequence under voltage element, time tagged multiple event recording, oscillographic wave form capture, Modbus RTU / IEC870-5-103, Display LCD 16 (2x8) characters, communication Protocol. 4 mm. safety terminals and 2 mm. terminals included on the front panel for the electrical connection..