7SJ6226-5EB30-1HF0特價(jià)過(guò)流保護(hù)7SJ6226-5EB30-1HF0特價(jià)過(guò)流保護(hù)西門子線路過(guò)流過(guò)載保護(hù),電力保護(hù)高壓直流輸電線路保護(hù)的作用是為了迅速準(zhǔn)確的檢測(cè)到各種可能發(fā)生的故障,并采取相應(yīng)的措施,消除和隔離故障,并保護(hù)電力一次設(shè)備不受損壞或減少設(shè)備損壞程度,盡量保持整個(gè)電網(wǎng)的穩(wěn)定運(yùn)行。各保護(hù)的保護(hù)范圍相互重疊,各保護(hù)功能之間精確配合,完成對(duì)整個(gè)系統(tǒng)的覆蓋,不產(chǎn)生保護(hù)盲區(qū)7SJ6226-5EB30-1HF0特價(jià)過(guò)流保護(hù)歡迎詢價(jià)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特價(jià)過(guò)流保護(hù)
4.3 零序差動(dòng)保護(hù) (ANSI 87N)
4.4 過(guò)流保護(hù)和自產(chǎn)零序過(guò)流保護(hù)(ANSI 50/51, 50N/51N)
4.5 外接零序過(guò)流保護(hù)(ANSI 50G/51G)
4.6 過(guò)流保護(hù)動(dòng)態(tài)冷負(fù)荷起動(dòng) (ANSI 50CLP
4.7 單相定時(shí)限過(guò)流保護(hù)(ANSI 50-1PH)
4.8 負(fù)序過(guò)流保護(hù) (ANSI 46)
4.9 熱過(guò)負(fù)荷保護(hù)(ANSI 49)
4.10 RTD 測(cè)溫盒 用于過(guò)負(fù)荷檢
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