رله حفاظتی زیمنس مدل 7SA611.-…..-…7

DISTANCE PROTECTION RELAY 7SA61 OPERATOR PANEL WITH: 4-LINE BACK-LIT DISPLAY, FUNCTION KEYS,NUMERICAL KEYS, PC-INTERFACE, EARTH-FAULT PROT. DIRECTIONAL, EARTHED NETWORKS, EARTH-FAULT DETECTION, COMPENSATED/ISOLATED NETWORKS, MEASURED VALUES EXTENDED (MIN,MAX,MEAN)