变压器容阻抗电压量Se(kVA)Uk%额定电流(A)高压侧低压侧低压出口短路电流(kA)IpIk高压侧进线电缆最小截面ZRYJV电缆规格(mm2)16049.2230.914.725.77200411.5288.718.407.22250414.4360.823.009.0210kV-3x25315418.2454.728.9811.3710kV-3x25400423.1577.436.8114.4310kV-3x25500428.9721.746.0118.0410kV-3x35630436.4909.357.9722.7310kV-3x358006.21154.749.0719.2510kV-3x501000657.71443.461.3424.0610kV-3x501250672.21804.276.6830.0710kV-3x701600692.42309.498.1538.4910kV-3x7020006115.52886.8122.6948.1125006144.33608.4153.3660.14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①Ik=Se/1000(√3×Ue×Uk%)=100Se/1000(√3×0.4×Uk)=Se/√3/4Uk(kA)②Ip=2.55Ik③变压器高压侧额定电流=Sr/(√3×Ue)=Se/√3/10(A)低压侧额定电流=Sr/(√3×Ue)=Se/√3/0.4(A)10/0.4kV变压器与低压断路器、互感器及母线等配合高压侧连接母互感器变比(A)300/5400/5500/5650/5800/5800/51000/51500/52000/52500/53000/54000/55000/5变压器母线槽(A)--63063080010001250160020002500315040005000铜母线(TMY-)规格(mm2)4(40×4)4(40×4)4(40×4)4(50×5)4(63×6.3)3(80×6.3)+1(63×6.3)3(80×8)+1(63×6.3)3(100×8)+1(80×6.3)3(125×10)+1(80×8)3[2(100×10)]+1(100×10)3[2(125×10)]+1(125×10)3[2(125×10)]+1(125×10)3[3(125×10)]+1(125×16)高压熔断总出线断线器额定电路器额定铜母线(TMY-)规流（A）电流(A)格(mm2)1625020315254003(63x6.3)325003(63x6.3)406303(63x6.3)508003(63x6.3)6310003(63x6.3)8012503(63x6.3)10016003(63x6.3)12520003(63x6.3)16025003(63x6.3)20032002504000上级系统容量无穷大为计算条件。Se/√3/4Uk(kA)
等配合表变压器低压侧出线选择VV电缆规格(mm)3×240+1×1202(3×150+1×70)2(3×240+1×120)3×2(1×185)+(1×185)3×2(1×240)+1(1×240)3×2(1×400)+1(1×400)3×4(1×185)+2(1×185)3×4(1×240)+2(1×240)3×4(1×400)+2(1×400)---2变压器低压侧中性点接地线选择YJV电缆规格(mm)3×150+1×703×185+1×953×300+1×1502(3×150+1×70）2(3×185+1×95）3×2(1×240)+1(1×240)3×2(1×300)+1(1×300)3×4(1×150)+2(1×150)3×4(1×240)+2(1×240)3×4(1×300)+2(1×300)---2铜母线(mm2)15×315×315×320×320×325×325×330×430×430×440×440×440×5镀锌扁钢(mm2)25×425×440×440×440×440×550×550×550×563×580×5100×580×8BV电缆(mm2)1×501×501×701×701×951×1201×1501×1501×1501×185---VV电缆(mm2)1×501×501×701×701×951×1201×1501×1501×1501×1851×2401×2401×300选择裸铜绞线(mm2)1×351×351×501×501×701×701×951×951×951×1201×1501×1851×240
