7SJ6821-5EW20-1FE0
MULTIFUNCTION PROTECTIVE RELAY CASE 1/3 19", 11BI, 6BO, 1 LIVE-STATUS CONTACT PHASE CURRENT TRANSFORMER 1A SUPPLY VOLTAGE:DC 110V TO 250V, AC 115V TO 230V, BINARY INPUT THRESHOLD 176V DC FLUSH MOUNTING CASE, SCREW TYPE TERMINALS (RING TYPE CABLE LUG CONNECT.) REGION CHINA, 50HZ, IEC/ANSI, LANGUAGE CHINESE (LANGUAGE FIXED) SYSTEM INTERFACE (PORT B) IEC 60870-5-103 PROTOCOL, RS485 WITH FRONT PORT, NO PORT C WITHOUT CONTROL, WITH USER-PREDIFINED OBJECTS FUNCTIONALITY: PHASE OVERCURRENT (50/51): I>,I>>,IP,REVERSE INTERLOCKING, INDEPENDENT OF PHASE ROTATION, EARTH-FAULT PROTECTION(50N/51N) IE>,IE>>,IEP, INRUSH BLOCKING, DIR. EARTH FIT. PROTECTION (SENSITIVE OR NON-SENSITIVE): IEE>, IEE>>,IEEP 67N(S)/50N(S)/51N(S), UNDERCURRENT MONITORING (37), NEGATIVE SEQUENCE PROTECT.(46), PHASE SEQUENCE MONITORING (47), DISPLACEMENT VOLTAGE (64/59N), UNDER-/OVERVOLTAGE (27/59), UNDER-/OVERFREQUENCY (81U/O) FLEXIBLE PROTECT.FUNCTIONS(81R) TRIP CIRCUIT SUPERVISION (74TC) 4 SETTING GROUPS, COLD LOAD PICKUP, LOCK OUT (86) WITHOUT AUTO-RECLOSURE
По запросу