رله حفاظتی زیمنس مدل 7SA613.-…..-3BD6

DISTANCE PROTECTION RELAY 7SA61 OPERATOR PANEL WITH: 4-LINE BACK-LIT DISPLAY, FUNCTION KEYS,NUMERICAL KEYS, PC-INTERFACE, TRIPPING 3-POLE PICKUP I>, PICKUP V</I>/ BREAKER-FAILURE PROTECTION, VOLTAGE PROTECTION, EARTH-FAULT PROT. DIRECTIONAL FOR EARTHED NETWORKS EARTH-FAULT DETECTION FOR COMPENSATED/ISOLATED NETWORKS OVERLAOD PROTECTION