ABB REL6704201071001-020 PROTECTION RELAY

About ABB REL6704201071001-020 PROTECTION RELAY

ABB REL6704201071001-020 PROTECTION RELAY

Additional functions are available for different general purposes to be used in logics suchas activation of HMI backlight, switchgroups,and resetting of operation indications, latchedoutput signals, registers and disturbancerecorder.The machine terminal REL 670 providesthree serial communication protocols: SPA,LON and MODBUS.The protection oflarge and/or important MV synchronous andasynchronous motors used e.g. in pumps,fans, mills and crushers during start-up andnormal run forms another application area.The machine terminals as integrated packages make possible compactmarine environment solutions for unit protection, too.In addition to protection, measurement