变压器与低压断路器互感器及母线等配合表

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)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)变压器低压侧出线选择中性点接地线容量Se (kVA)阻抗电压U%10 K V侧0.4 KV侧I pIk母线槽(A)铜母线(TMY-)规格(mnm低压电缆(m向铜母线 (mm2)镀锌扁钢(mm2)BV电缆 (mn2)VV电缆 (mrn)裸铜绞线 (mrm)VV电缆规格YJV电缆规格16049.223114.75.7716250300/5一4(40 X 4)3X 185+1X953X 150+1X7015X325X41

2、X501X501X35200411.528918.47.2220315400/5一4(40 X 4)3X240+1X1203X 185+1X9515X325X41X501X501X35250414.536122.959.0025400500/56304(40X4)2(3 X150+1X70)3 X 300+1X 15015X340X41X701X701X50315418.245528.9211.3432500650/56304(50 X 4)2(3 X 240+1X 120)2(3 X 150)+1 X 7020X340X41X701X701X50400423.157836.7214.4040

3、630800/58004(63 X 6.3)3X2(1 X185)+(1 X185)2(3 X 185)+1 X9520X340X41X951X951X70500428.972345.9018.0050800800/510003(80X6.3)+1(63 X 6.3)3X2(1 X 240)+1(1 X240)3X2(1 X 240)+1(1 X240)25X340 X 51X1201X1201X70630636.491057.8322.686310001000/512503(80X8)+1(63 X6.3)3X2(1 X 400)+1(1 X400)3X2(1 X 300)+1(1 X3 0

4、0)25X350X51X1501X1501X95800646.2115648.9619.208012501500/516003(100X8)+1(80 X6.3)3X4(1 X 185)+2(1 X 185)3X4(1 X 150)+2(1 X 150)30X450X51X1501X1501X951000657.8144561.2024.0010016002000/520003(125 X 10)+1(80 X8)3X4(1 X 240)+2(1 X240)3X4(1 X 240)+2(1 X240)30X450X51X1501X1501X951250672.3180676.5030.0012

5、520002500/5250032(100 X 10)+1(100 X 10)3X4(1 X 400)+2(1 X400)3X4(1 X 300)+2(1 X300)30X463X51X1851X1851X1201600692.5231297.9238.4016025003000/5315032(125 X 10)+1(125 X 10)一一40X480X5一1X240162890122.448.0020032004000/5400032(125 X 10)+1(125 X 10)一一40X4100X5一1X240153613153.060.

6、0025040004000/5500033(125 X 10)+1(125 X 16)一一40X580X8一1X3001X240附注：1、Ip一短路电流峰值；Ik一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=Se/1000 (1.732 xuex Uk% =100Se/1000 (1.732 x 0.4Uk) =144.34Se /1000Uk (kA) Ip=2.55Ik 变压器高压侧额定电流=Sr/1.732 xUe= Sr/1.732 xi0=Se/17.32 (A)低压侧额定电流=Sr/ (1.732 x Ue) =Se/ (1.732 X0.

7、4) =Se/1.443 (A)2、变压器低压侧接地线按变压器 D,yn11接法、变压器负序及零序阻抗等于正序阻抗、变压器低压侧5ml短路切除时间0.6s计算。3、变压器低压侧出线按环境温度选择铜芯电缆、铜母线、母线梢，过载系数取1.25。单芯电缆并列系数取0.8;多芯电缆并列系数取0.9; VV电缆温度系数取0.94YJV电缆温度系数取0.96 ;母线温度校正系数取0.887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25 C30 C35 C40 C25 C30 C35 C40 C25 C30 C35 C40 C25 C30 C35 C40 C15

8、X321019718517021019718517016515514513416515514513420X327525824222327525824222321520218917421520218917425X334032029927634032029927626524923321526524923321530X447544641838547544641838536534332129637034832630040X462558755050662558755050648045142238948045142238940X570065961556770566462057154050747543854

9、551248044650X586080975669787081876570566562558553967063059054350X6.395589884077496090284577874069565160074570065560463X6.31125105699091211451079101092887081876570588082777571380X6.314801390130012001510142013301225115010801010932117011001030950100X6.318101700159014701875176016501520142513401255115514

10、5513681280118063X8132012401160107013451265118510901025965902831104097791584480X81690159014901370175516501545142013201240116010701355127411921100100X82080195518301685218020501920177016251530143013151690159014881370125X8240022552110194526002445229021051900178516701540204019181795165563X101475138813001

11、195152514321340123511551085101693611801110104095680X101900178616701540199018701750161014801390130012001540145013551250100X 102310217020301870247023202175200018201710160014751910179516801550125X 102650249023302150295027702595239020701945182016802300216020201865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

12、, >63mnfl寸乘以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25 C30 C35 C40 c25 c30 c35 c40 c25 c30 C35 C40 C25 C30 C35 C40 C63X6.3174016361531140919901871175116121350126911881094155514621368126080X6.32110198318571709263024722314213016301532143413202055193218081665100X 6.3247023222174200132453050

13、285626281935181917031567251523642213203763X8216020301901175024852336218720131680157914781361184017301619149080X826202463P 23062122309529102724250820401918179516522400225621121944100X83060287626932479381035813353308623902247210319362945276825922385125X8340031962992275444004136387235642650249123322147

14、335031492948271463 X 10256024062253207427252562239822072010188917691628211019831857170980 X 103100291427282511351032993089284324102265212119522735257124072215100X 103610339331772924432540663806350328602688251723173350314929482714125X 104100385436083321500047004400405032003008281625923900366635323159

15、规格尺寸宽x 厚（mm）三片铜母线三片铝母线交流直流交流直流25 C30 C35 C40 c25 c30 c35 c40 c25 C30 C35 C40 C25 C30 C35 C40 C63X6.3224021061971181424952345219620121720161715141393194018241707157180X6.32720255723942203322030272834260821001974184817012460231221651993100X 6.33170298027902568394037033467319125002350220020253040285826

16、75246263X8279026232455226030202839265824462180204919181766233021902050188780X833703168P 2966273038503619 13388311926202463230621222975279726182410100X83930369434583183469044094127379930502867268424713620340331862932125X843404080P 3819351556005264149284536338031772974P 2738425039953740344363 X 103300

17、31022904267335303318310628592650249123322147272025572394220380 X 103990375135113232445041833916360531002914272825113440323430272786100X 104650437140923767538550624739436236503431321229574160391036613370125X 105200488845764212625058755500506341003854360833214860456842773937注：本表系母线立放的数据，母线间距等于厚度。铜排、铝排

18、载流量（安）表卜（宽X厚） 材料结构排彘15X320X325X330X440X440X550X550X660X660X860 X 1080X680X880X 10100X6100X8100X 10120X 8120X102根60X680X8铜排TMY开启平放162212264368485540660740873101811401115127014301356156517851860198013401950竖放171275285335510580705775920107011951205137015401475168518701955217014102120封闭13017521531540044

19、0540605718837935915104011701120128014201485162610171530重量(m/kg)0.400.530.661.041.401.742.182.613.134.185.224.185.576.965.226.968.708.3510.506.2611.14铝排LMY开启平放12716620528337241751557368078889586499511151070122013701420155010351510竖放134175215300395440546600715830935935107012001160131514751550176010901650封闭10413616823530534242247056064873070881591588510001120117712707861191重量(m/kg)0.120.160.200.320.430.540.680