7UT6131-6EB92-1BC3-L0D優(yōu)質(zhì)推薦,西門子7UT6131-6EB92-1BC3-L0D差動(dòng)保護(hù),用于變壓器保護(hù),發(fā)電機(jī)保護(hù),短引線,單母線,單側(cè)熱過負(fù)荷保護(hù),隨著科學(xué)技術(shù)進(jìn)步,適用環(huán)境的更高要求,微機(jī)保護(hù)西門子7UT6131-6EB92-1BC3-L0D差動(dòng)保護(hù)功能要求也越來越高RDS100型微機(jī)綜合保護(hù)裝置可作為35KV及以下電壓等級(jí)的發(fā)電廠、變電站、配電站等。微機(jī)保護(hù)裝置具有集成度高、西門子7UT6131-6EB92-1BC3-L0D差動(dòng)保護(hù)保護(hù)配置齊全抗干擾能力強(qiáng)、功耗小、抗惡劣環(huán)境等有點(diǎn),特別適合于直接分散安裝。
7UT6131-6EB92-1BC3-L0D參數(shù):DIGITAL DIFFERENTIAL PROTECTION
RELAY,
FOR TRANSFORMER, GENERATORS,
MOTOR, SMALL BUSBARS AND
SHORT CABLE,
4-LINE ALPHANUM.BACKLIT DISPLAY
14 PROGRAMMABLE LED,
NAVIGATION KEYS, FUNCTION KEYS,
NUMBER BLOCK,
CASE 1/2 X 19", 5BI, 8BO,
1 WATCHDOG CONTACT, 11I, IEE,
CURRENT TRANSFORMER: 1A
SUPPLY VOLTAGE:DC 110V TO 250V,
AC 115V/230V,
TRIGGER LEVEL BINARY INPUT 176V
FLUSH MOUNTING CASE,
SCREW TERMINALS
(DIRECT WIRING/RING LUGS)
REGION WORLD, IEC/ANSI,
LANGUAGE ENGLISH
(LANGUAGE CHANGEABLE)
SYSTEM PORT
(ON REAR OF DEVICE) PORT B
MODBUS, RS485
DIGSI 4/MODEM PORT
(ON REAR OF DEVICE) PORT C
DIGSI 4, BROWSER OR THERMO-BOX,
ELECTRICAL RS485
BASIS MEASURED VALUES,
FAULT RECORDING
RESTRICTED EARTH FAULT
LOW IMPEDANCE (87N)
UMZ - 1-PHASE FOR RESTRICTED
EARTH FAULT HIGH IMPEDANCE
(87N W/O RESISTOR AND VARISTOR)
SENSITIVE OVERCURR.-TIME PROT./
TANK PROTECTION (64)
NEGATIVE SEQUENCE PROTECT. (46)
BREAKER FAILURE PROTECT. (50BF)
TRIP CIRCUIT SUPERVISION (74TC)
ADDITIONAL FUNCTION:
VOLTGAE MEASUREMENT AND
OVEREXCITATION PROTECTION,
OVER- /UNDERVOLTAGE PROTECTION,
FREQUENCY PROTECTION,
DIRECTIONAL PROTECTION,
FUSE FAILURE MONITOR
MULTIPLE PROTECTION FUNCTION +
FREE CONFIGURABLE
PROTECTION MODULES
西門子7UT6131-6EB92-1BC3-L0D差動(dòng)保護(hù)概述
7UT61系列微機(jī)電流差動(dòng)保護(hù)總體來說為具有比率制動(dòng)特性,帶二次諧波及高次諧波制動(dòng)的分相電流差動(dòng)保護(hù)系統(tǒng),其最基本原理當(dāng)然仍是差動(dòng)原理,差動(dòng)電流(Id)為各側(cè)電流相量和的模,制動(dòng)電流(Is)為各側(cè)電流相量模的和(國(guó)產(chǎn)繼電器多取其值的1/2。)
7UT61動(dòng)作特性曲線,斜線部分分為兩段,這是它的特點(diǎn)之一,這使得它可以更好的與TA飽和特性相匹配,從而在獲得較高靈敏性的同
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