變壓器容量與母排、開關(guān)、選型配合表

1、10/0.4kv（變比為25）變壓器與低壓斷路器、互感器及母線等配合表變壓器容量se(kva)阻抗電壓uk%額定電流(a)低壓出口短路電流(ka)高壓熔斷器額定電流（a）總出線斷路器額定電流(a)互感器變比(a)高壓側(cè)低壓側(cè)ipik16049.2230.914.725.7716250300/5200411.5288.718.407.2220315400/5250414.4360.823.009.0225400500/5315418.2454.728.9811.3732500650/5400423.1577.436.8114.4340630800/5500428.9721.746.0118.04

2、50800800/5630436.4909.357.9722.736310001000/5800646.21154.749.0719.258012501500/51000657.71443.461.3424.0610016002000/51250672.21804.276.6830.0712520002500/51600692.42309.498.1538.4916025003000/520006115.52886.8122.6948.1120032004000/525006144.33608.4153.3660.1425040005000/5附注：1.ip-短路電流峰值；ik-對稱穩(wěn)態(tài)三相短

3、路電流有效值；短路電流計(jì)算以上級系統(tǒng)容量無窮大為計(jì)算條件。計(jì)算公式ik=se/1000(3ueuk%)=100se/1000(30.4uk)=se/3/4uk(ka)ip=2.55ik變壓器 高壓側(cè)額定電流=sr/(3ue)=se/3/10(a)低壓側(cè)額定電流=sr/(3ue)=se/3/0.4(a)變壓器低壓側(cè)出線選擇變壓器低壓側(cè)中性點(diǎn)接地線選擇母線槽(a)銅母線(tmy-)規(guī)格(mm2)vv電纜規(guī)格(mm2)yjv電纜規(guī)格(mm2)銅母線(mm2)-4(404)3150+170153-4(404)3240+11203185+1951536304(404)2(3150+170)3300+11

4、501536304(505)2(3240+1120)2(3150+170）2038004(636.3)32(1185)+(1185)2(3185+195）20310003(806.3)+1(636.3)32(1240)+1(1240)32(1240)+1(1240)25312503(808)+1(636.3)32(1400)+1(1400)32(1300)+1(1300)25316003(1008)+1(806.3)34(1185)+2(1185)34(1150)+2(1150)30420003(12510)+1(808)34(1240)+2(1240)34(1240)+2(1240)3042

5、50032(10010)+1(10010)34(1400)+2(1400)34(1300)+2(1300)304315032(12510)+1(12510)-404400032(12510)+1(12510)-404500033(12510)+1(12516)-40510/0.4kv（變比為25）變壓器與低壓斷路器、互感器及母線等配合表附注：1.ip-短路電流峰值；ik-對稱穩(wěn)態(tài)三相短路電流有效值；短路電流計(jì)算以上級系統(tǒng)容量無窮大為計(jì)算條件。ik=se/1000(3ueuk%)=100se/1000(30.4uk)=se/3/4uk(ka)鍍鋅扁鋼(mm2)bv電纜(mm2)vv電纜(mm2)

6、裸銅絞線(mm2)25415015013525415015013540417017015040417017015040419519517040511201120170505115011501955051150115019550511501150195635118511851120805-124011501005-12401185808-1300124010/0.4kv（變比為25）變壓器與低壓斷路器、互感器及母線等配合表變壓器低壓側(cè)中性點(diǎn)接地線選擇變變壓壓器器與與斷斷路路器器配配合合選選用用推推薦薦表表變壓器第一級容量額定電流短路電壓短路電流斷路器kva(a)u%ka型號/額定電流507042

7、rmm1-100/100armm2-250/100a10014144rmm1-250/160armm2-250/160a 16022546rmm1-250/250armm2-250/250a20028947.23rmm1-400/ 315armm2-630/400armw1-630/630armw2-1600/400ame630/630a25036149.03rmm1-400/400armm2-630/400armw1-630/630armw2-1600/400ame630/630a315455411.4rmm1-630/ 500armm2-630/630armw1-630/630armw2-

8、1600/630ame630/630a400577414.4rmm1-630/ 630armm2-630/630armw1-630/630armw2-1600/630ame630/630a500722418.1rmw1-800/800armw2-1600/800ame-800/800a630900422.7rmw1-1000/1000armw2-1600/1000ame1000/1000a8001155523.1rmw1-1250/1250armw2-1600/1250ame1250/1250a10001440528.9rmw1-1600/1600armw2-1600/1600ame1600/

9、1600a12501804536.1rmw1-2000/2000ame2000/2000a16002310637rmw1-2500/2500ame2500/2500a20002887646.2rmw1-3200/3200ame3200/3200a25003601657.7rmw1-4000/4000ame3205/4000a31504451674rmw1-5000/5000a注： 1.計(jì)算的依據(jù)：上級電網(wǎng)的短路功率為500mva 變壓器為10kv/400v2.斷路器分?jǐn)嗄芰Π磗、h等級選用，如無標(biāo)志分?jǐn)嗄芰稍趕、h之間任選。第二級饋 電 開 關(guān) 的 選 用 型 號/額定電流短路電流100a1

10、60a200a250aka2rmm1-100/100armm2-250/100a4rmm1-100/100armm1-250/160armm2-250/100armm2-250/160a6rmm1-100/100armm1-250/160armm1-250/200armm2-250/100armm2-250/160armm2-250/250armm1-100/100armm1-250/160armm1-250/200armm1-250/250a7.23rmm2-250/100armm2-250/160armm2-250/250armm2-250/250armm1-100/100armm1-25

11、0/160armm1-250/200armm1-250/250a9.03rmm2-250/100armm2-250/160armm2-250/250armm2-250/250a11.4rmm1-100/100armm1-250/160armm1-250/200armm1-250/250armm2-250/100armm2-250/160armm2-250/250armm2-250/250a14.4rmm1-100/100armm1-250/160armm1-250/200armm1-250/250armm2-250/100armm2-250/160armm2-250/250armm2-250/

12、250a18.1rmm1-100/100armm1-250/160armm1-250/200armm1-250/250armm2-250/100armm2-250/160armm2-250/250armm2-250/250a22.7rmm1-250/200armm1-250/250armm1-100/100armm1-250/160armm2-250/250armm2-250/250armw1-630/630armm2-250/100armm2-250/160armw2-1600/200armw2-1600/400ame630/630ame630/630a23.1rmm1-250/200arm

13、m1-250/250armm1-100/100armm1-250/160armm2-250/250armm2-250/250armw1-630/630armm2-250/100armm2-250/160armw2-1600/200armw2-1600/400ame630/630ame630/630a變變壓壓器器與與斷斷路路器器配配合合選選用用推推薦薦表表28.9rmm1-250/200armm1-250/250armm1-100/100armm1-250/160armm2-250/250armm2-250/250armw1-630/630armm2-250/100armm2-250/160ar

14、mw2-1600/200armw2-1600/400ame630/630ame630/630a36.1rmm1-250/200armm1-250/250armm1-100h/100armm1-250h/160armm2-250/250armm2-250/250armw1-630/630armm2-250/100armm2-250/160armw2-1600/200armw2-1600/400ame630/630ame630/630a37rmm1-250/200armm1-250/250armm1-100h/100armm1-250h/160armm2-250/250armm2-250/250a

15、rmw1-630/630armm2-250/100armm2-250/160armw2-1600/200armw2-1600/400ame630/630ame630/630a46.2rmm2-250/250armm1-400h/250armm2-250/100armm2-250/160armm2-250/250ame630/630armw1-630/630ame630/630a57.7rmm2-250/100armm2-250/160armm2-250/250armm1-400h/250armm2-250/250armw1-630/630a74400a630a800a1000a1250armm

16、1-400/400armm2-630/400armm1-400/400armm2-630/400armm1-400/400armm1-630/630armm2-630/400armm2-630/630armm1-400/400armm1-630/630armm1-800/800armm2-630/400armm2-630/630armw1-630/630armw1-630/630armw1-800/800armw2-1600/400armw2-1600/630armw2-1600/800ame630/630ame630/630ame800/800armm1-400/400armm1-630/6

17、30armm1-800/800armm2-630/400armm2-630/630armw1-630/630armw1-630/630armw1-800/800armw1-1000/1000armw2-1600/400armw2-1600/630armw2-1600/800armw2-1600/1000ame630/630ame630/630ame800/800ame-1000/1000a饋 電 開 關(guān) 的 選 用 型 號/額定電流rmm1-400/400armm1-630/630armm1-800/800armm2-630/400armm2-630/630armw1-630/630armw1

18、-630/630armw1-800/800armw1-1000/1000armw1-1250/1250armw2-1600/400armw2-1600/630armw2-1600/800armw2-1600/1000armw2-1600/1250ame630/630ame630/630ame800/800ame1000/1000ame1250/1250armm1-400/400armm1-630/630armm1-800/800armm2-630/400armm2-630/630armw1-630/630armw1-630/630armw1-800/800armw1-1000/1000armw

19、1-1250/1250armw2-1600/400armw2-1600/630armw2-1600/800armw2-1600/1000armw2-1600/1250ame630/630ame630/630ame800/800ame1000/1000ame1250/1250armm1-400/400armm1-630/630armm1-800/800armw1-1000/1000armw1-1250/1250armm2-630/400armm2-630/630armw1-800/800armw1-630/630armw1-630/630armw2-1600/800armw2-1600/1000armw2-1600/1250armw2-1600/400armw2-1600/630ame630/630ame630/630ame800/800ame1000/1000ame1250/1250armm1-400h/400armm1-630h/630armm1-800h/800armw1-1000/1000armw1-1250/1250armm2-630/400armm2-630/630armw1-630/630armw1-630/630armw1-800/800ame1000/1000armw