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1、10/0.4kV变压器与低压断路器、互感器及母线等配合表变压器额定电流(A)低压出口短路 电流(kA)容量Se(kVA)阻抗电压U%k10 K V 侧0.4 KV侧高压熔断器额定电流(A)总出线断路器额定电流(A)互感器变比(A)母线槽(A)1609.223114.75.7716250300/520011.528918.47.2220315400/525014.536122.959.0025400500/563031518.245528.9211.3432500650/563040023.157836.7214.4040630800/580050028.972345.9018.00508008
2、00/5100063036.491057.8322.686310001000/5125080046.2115648.9619.208012501500/51600100057.8144561.2024.0010016002000/52000125072.3180676.5030.0012520002500/52500160092.5231297.9238.4016025003000/531502000115.62890122.448.0020032004000/540002500144.53613153.060.0025040004000/55000变压器低压侧出线选择铜母线(TMY-)规格(
3、mm2)4(40X4)4(40X4)4(40X4)4(50X4)4(63X6.3)3(80X6.3)+1 (63X6.3)3(80X8)+1 (63X6.3)3(100X8)+1 (80X6.3)3(125X 10)+1 (80X8)32(100X10)+1(100X10)32(125X10)+1(125X10)32(125X10)+1(125X10)33(125X10)+1(125X16)低压电缆(mm2)VV电缆规格3X185+1X953X240+1X1202(3X 150+1X70)2(3X240+1X120)3X2(1X 185) + (1X 185)3X2(1X240)+1(1X24
4、0)3X2(1X400)+1(1X400)3X4(1X 185)+2(1X 185)3X4(1X240)+2(1X240)3X4(1X400)+2(1X400)YJV电缆规格3X150+1X703X185+1X953X300+1X 15(2(3X150)+1X72(3X185)+1X(3X2(1X240)+1(1；3X2(1X300)+1 (1；3X4(1X150)+2(1；3X4(1X240)+2(1；3X4(1X300)+2(1；附注：1、Ip短路电流峰值；Ik对称稳态三相短路电流有效值；短路电流计算以上级系统容量无穷大为计算条件。计算公式 Ik二Se/1000 (1.732XUeXUk%
5、) =100Se/1000 (1.732X0.4Uk) =144.34Se /1000Uk (kA) Ip=2.55Ik 变压器高压侧额定电流二Sr/1.732XUe二 Sr/1.732X 10二Se/17.32 (A)涂漆矩形母线持续载流量(A)规格尺寸 宽X厚(mm)单片铜母线单片铝母线交流直流交流直流25C30C35C40C25C30C35C40C25C30C35C40C25C30C35C40C15X321019718517021019718517016515514513416515514513420X3275258242223275258242223215202189174215202
6、18917425X334032029927634032029927626524923321526524923321530X447544641838547544641838536534332129637034832630040X462558755050662558755050648045142238948045142238940X570065961556770566462057154050747543854551248044650X586080975669787081876570566562558553967063059054350X6.39558988407749609028457787406
7、9565160074570065560463X6.31125105699091211451079101092887081876570588082777571380X6.314801390130012001510142013301225115010801010932117011001030950100X6.3181017001590147018751760165015201425134012551155145513681280118063X8132012401160107013451265118510901025965902831104097791584480X81690159014901370
8、175516501545142013201240116010701355127411921100100X82080195518301685218020501920177016251530143013151690159014881370125X8240022552110194526002445229021051900178516701540204019181795165563X101475138813001195152514321340123511551085101693611801110104095680X10190017861670154019901870175016101480139013
9、0012001540145013551250100X102310217020301870247023202175200018201710160014751910179516801550125X102650249023302150295027702595239020701945182016802300216020201865注:本表系母线立放的数据。当母线平放且宽度W63mm时，表中数据应乘以0.95, 63mm时乘以0.92。涂漆矩形母线持续载流量(A)规格尺寸宽 X厚(mm)两片铜母线两片铝母线交流直流交流直流25C30C35C40C25C30C35C40C25C30C35C40C25C30
10、C35C40C63X6.3174016361531140919901871175116121350126911881094155514621368126080X6.32110198318571709263024722314213016301532143413202055193218081665100X6.3247023222174200132453050285626281935181917031567251523642213203763X8216020301901175024852336218720131680157914781361184017301619149080X82620246323
11、062122309529102724250820401918179516522400225621121944100X83060287626932479381035813353308623902247210319362945276825922385125X8340031962992275444004136387235642650249123322147335031492948271463X10256024062253207427252562239822072010188917691628211019831857170980X103100291427282511351032993089284324102265212119522735257124072215100X103610339331772924432540663806350328602688251723173350314929482714125X104100385436083321500047004400405032003008281625923900366635323159规格尺寸宽 X厚(mm)三片铜母线三
