REF542PLUS ABB
The ABB REF542PLUS is a powerful and versatile protection and measurement unit that integrates protection,control,measurement,communication and monitoring functions in one.The product is widely used in power system,can be used in feeder protection,transformer protection,motor protection and control and other scenarios. Product parameter Measurement range:voltage,current,power and other measurement range Protection function:over current,over voltage,ground fault,out of step protection…