رله حفاظتی زیمنس مدل 7SA631.-…..-2GH5

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, TRIPPING 3-POLE PICKUP I>, PICKUP V</I>/ PICKUP Z< (POLYGON),V</I>/PHI POWER SWING DETECTION, SYNCHRO-CHECK, BREAKER-FAILURE PROTECTION, VOLTAGE PROTECTION, EARTH-FAULT PROT. DIRECTIONAL FOR EARTHED NETWORKS OVERLOAD PROTECTION MEASURED VALUES EXTENDED (MIN,MAX,MEAN)