رله حفاظتی زیمنس مدل 7SA631.-…..-…6

DISTANCE PROTECTION RELAY 7SA63 OPERATOR PANEL WITH: BACK-LIT GRAPHIC DISPLAY FOR SINGLE-LINE DIAGRAM, CONTROL KEYS, KEY-OPERATED SWITCH, FUNCTION KEYS, NUMERICAL KEYS, PC-INTERFACE, EARTH-FAULT PROT. DIRECTIONAL, EARTHED NETWORKS EARTH-FAULT DETECTION, COMPENSATED/ISOLATED NETWORKS