7SJ6226-5EB30-1HF0特价过流保护7SJ6226-5EB30-1HF0特价过流保护西门子线路过流过载保护,电力保护高压直流输电线路保护的作用是为了迅速准确的检测到各种可能发生的故障,并采取相应的措施,消除和隔离故障,并保护电力一次设备不受损坏或减少设备损坏程度,尽量保持整个电网的稳定运行。各保护的保护范围相互重叠,各保护功能之间精确配合,完成对整个系统的覆盖,不产生保护盲区7SJ6226-5EB30-1HF0特价过流保护欢迎询价侯小姐13296058650,QQ:1678267328
7SJ6226-5EB30-1HF0:MULTIFUNCTION PROTECTIVE RELAY
BAY CONTROLLER,
BACKFIT TEXT DISPLAY,
4 X 20 CHARACTERS,
7 PROGRAMMABLE LED,
CASE 1/3 19", 11BI, 6BO,
1 WATCHDOG CONTACT
PHASE CURRENT TRANSFORMER 5A,
SENSITIVE EARTH CURRENT TRANSF.
SUPPLY VOLTAGE:DC 110V TO 250V,
AC 115V TO 230V,
TRIGG.LEVEL BINARY INPUT DC 88V
FLUSH MOUNTING CASE,
SCREW TERMINALS
(DIRECT WIRING/RING LUGS)
LANGUAGE ENGLISH, 50/60HZ,
IEC/ANSI, REGION WORLD,
(LANGUAGE CHANGEABLE)
SYSTEM PORT
(ON REAR OF DEVICE) PORT B
IEC PROTOCOL, 820NM FIBER,
ST-PLUG
WITHOUT DIGSI 4/MODEM PORT
METERING: FAULT RECORDING
FUNCTIONALITY:TOC+V/F MOTOR
+SENSITIVE DIRECT. GROUND FAULT
PHASE OVERCURRENT (50/51):
I>,I>>,IP,
GROUND OVERCURRENT (50N/51N):
IE>, IE>>, IEP,
SENSITIVE DIRECTIONAL GROUND
PROTECTION IEE(67N): IEE>,IEE>>
GROUND VOLTAGE DISPLACEMENT(64)
PHASE ROTATION(47), OVERLOAD
PROTECT.W. 2 TIME CONSTANTS(49)
TRIP CIRCUIT SUPERVISION (74TC)
BREAKER FAILURE PROTECT. (50BF)
INRUSH BLOCKKING, LOCK OUT (86)
MOTOR PROTECT.:UNDERCURRENT(37)
NEGATIVE SEQUENCE (46)
START UP SUPERVISION (48)
RESTART INHIBIT (66/86)
UNDER-/OVERVOLTAGE (27/59)
UNDER-/OVERFREQUENCY (81O/U)
WITHOUT AUTO-RECLOSURE
7SJ6226-5EB30-1HF0特价过流保护
4.3 零序差动保护 (ANSI 87N)
4.4 过流保护和自产零序过流保护(ANSI 50/51, 50N/51N)
4.5 外接零序过流保护(ANSI 50G/51G)
4.6 过流保护动态冷负荷起动 (ANSI 50CLP
4.7 单相定时限过流保护(ANSI 50-1PH)
4.8 负序过流保护 (ANSI 46)
4.9 热过负荷保护(ANSI 49)
4.10 RTD 测温盒 用于过负荷检