PAGE1低壓網(wǎng)絡(luò)短路電流的計(jì)算1計(jì)算條件高壓系統(tǒng)短路電流的計(jì)算條件也適用于低壓網(wǎng)絡(luò)短路電流的計(jì)算，此外低壓網(wǎng)絡(luò)短路電流的計(jì)算還有如下特點(diǎn)：⑴用電單位的電源來(lái)自地區(qū)電力網(wǎng)，配電用的電力變壓器容量遠(yuǎn)小于系統(tǒng)的容量，因此短路電流可按無(wú)限大電源容量的網(wǎng)絡(luò)短路進(jìn)行計(jì)算，短路電流周期分量不衰減。⑵計(jì)入短路電路各元件的有效電阻，但短路點(diǎn)的電弧電阻及導(dǎo)線連接點(diǎn)、開(kāi)關(guān)設(shè)備和電器的接觸電阻可忽略不計(jì)。⑶當(dāng)電路電阻較大，短路電流非周期分量衰減較快，一般可不考慮非周期分量。只有在離配電變壓器低壓側(cè)很近處，如低壓側(cè)20m以內(nèi)大截面線路上或低壓配電屏內(nèi)部發(fā)生短路時(shí)，才需要計(jì)算非周期分量。⑷單位線路長(zhǎng)度有效電阻的計(jì)算溫度不同，在計(jì)算三相最大短路電流時(shí)，導(dǎo)體計(jì)算溫度取為20℃；在計(jì)算單相短路（包括單相接地故障）電流時(shí)，假設(shè)的計(jì)算溫度升高，電阻值增大，其值一般取20℃時(shí)電阻的1.5倍。⑸計(jì)算過(guò)程采用有名單位制，電壓用V、電流用kA、容量用kVA、阻抗用mΩ。圖3-29低壓網(wǎng)絡(luò)三相短路電流計(jì)算電路(a)系統(tǒng)圖；(b)等效電路圖；(c)用短路阻抗ZK表示的等效電路⑹計(jì)算220/380V網(wǎng)絡(luò)三相短路電流時(shí)，計(jì)算電壓CUn取電壓系數(shù)C為1.05，計(jì)算單相接地故障電流時(shí)，C圖3-29低壓網(wǎng)絡(luò)三相短路電流計(jì)算電路(a)系統(tǒng)圖；(b)等效電路圖；(c)用短路阻抗ZK表示的等效電路2三相和兩相短路電流的計(jì)算在220V/380V網(wǎng)絡(luò)中，一般以三相短路電流為最大。一臺(tái)變壓器供電的低壓網(wǎng)絡(luò)三相短路電流計(jì)算電路見(jiàn)圖29。低壓網(wǎng)絡(luò)三相起始短路電流周期分量有效值按下式計(jì)算(kA)(3-58);式中──網(wǎng)絡(luò)標(biāo)稱電壓（線電壓），V，220/380網(wǎng)絡(luò)為380V；C──電壓系數(shù)，計(jì)算三相短路電流時(shí)取1.05；──短路電路總阻抗、總電阻、總電抗，mΩ；──變壓器高壓側(cè)系統(tǒng)的電阻、電抗（歸算到400V側(cè)），mΩ；──變壓器的電阻、電抗，mΩ；──變壓器低壓側(cè)母線段的電阻、電抗，mΩ；──配電線路的電阻、電抗，mΩ；──三相短路電流的起始值、穩(wěn)態(tài)值。當(dāng)時(shí)，變壓器低壓側(cè)短路時(shí)的短路電流周期分量不衰減，即。三相短路沖擊電流的計(jì)算與高壓系統(tǒng)相同，見(jiàn)式27。電動(dòng)機(jī)反饋對(duì)短路沖擊電流的影響，僅當(dāng)短路點(diǎn)附近所接用電動(dòng)機(jī)額定電流之和大于短路電流的1％（）時(shí)，才考慮其影響。異步電動(dòng)機(jī)啟動(dòng)電流倍數(shù)可取6～7，異步電動(dòng)機(jī)的短路電流沖擊系數(shù)可取1.3。由異步電動(dòng)機(jī)饋送的短路沖擊電流的計(jì)算見(jiàn)高壓系統(tǒng)計(jì)算式28。低壓網(wǎng)絡(luò)兩相短路電流與三相短路電流的關(guān)系也和高壓系統(tǒng)相同，即。兩相短路穩(wěn)態(tài)電流與三相短路穩(wěn)態(tài)電流的比值也和高壓系統(tǒng)相同。在遠(yuǎn)離發(fā)電機(jī)短路時(shí)，；在發(fā)電機(jī)出口處短路時(shí)，。3單相短路（包括單相接地故障）電流的計(jì)算1、單相接地故障電流的計(jì)算TN接地系統(tǒng)的低壓網(wǎng)絡(luò)單相接地故障電流可由下式計(jì)算(3-59)(3-60)式中Un──220、380V網(wǎng)絡(luò)標(biāo)稱線電壓，即380V，C──電壓系數(shù)，計(jì)算單相接地故障電流時(shí)取1；──短路電路正序、負(fù)序、零序電阻，mΩ；──短路電路正序、負(fù)序、零序電抗，mΩ；──短路電路正序、負(fù)序、零序阻抗，mΩ；──短路電路的相線一保護(hù)線回路（以下簡(jiǎn)稱相保，保護(hù)線包括PE線和PEN線）電阻、相保電抗、相保阻抗mΩ。2、相線與中性線之間短路的單相短路電流的計(jì)算，與上述單相接地故障電流計(jì)算相似，僅將配電線路的相保電阻、相保電抗改用相線一中性線回路的電阻、電抗。410(6)/0.4kV電力變壓器低壓側(cè)短路電流值10(6)/0.4kV電力變壓器低壓側(cè)短路電流值見(jiàn)表33～表36所列.表33SC（B）9系列10(6)、0.4kV變壓器低壓側(cè)短路電流值(D,yn11連接)高壓側(cè)系統(tǒng)短路容量(MVA)變壓器容量(kVA)16020025031540050063063080010001250160020002500變壓器阻抗電壓(%)446低壓母線段規(guī)格(WLA,mm)4×（40×4）3×(50×5)＋40×43×(63×6.3)＋40×43×(80×6.3)＋50×53×(80×8)＋50×53×(80×8)＋50×53×(100×8)＋63×6.33×(125×10)＋80×6.33×[2×(100×10)]+100×103×[2×(125×10)]+125×103×[2×(100×10)]+100×10Wcu3×[2×(125×10)]+125×10Wcu短路種類及電路阻抗三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保10計(jì)算電阻(mΩ)14.915.311.4811.888.699.097.197.595.575.974.644.714.024.094.104.1744292.952.722.602.232.351.962.181.782.041.60計(jì)算電抗(mΩ)5550.9146.9142.8041.8337.7236.6232.5032.4528.3329.2825.0926.6922.5031.8427.6528.6624.5026.2921.9824.4520.0622.7318.2921.6017.2120.5916.15短路電流(kA)4.044.144.764.955.385.676.166.596.997.607.768.628.529.627.177.877.978.908.709.939.3510.9010.0711.9610.5912.7211.1215620計(jì)算電阻(mΩ)14.1114.7710.6911.357.908.566.407.064.785.44854652.762.162.191.811.701.561.431.391.251.251.07計(jì)算電抗(mΩ)47.0645.6138.9537.5038732.4228.6627.2024.4920321.3219.7918.7317.2028822.3520.7019.1918.3316.6816.4914.7614.7712.9916411.9112.6310.85短路電流(kA)4.684.595.695.626.616.567.837.839.229.3010.6210.8712.1012.539.549.7211.0211.3512.4610818614.8015.4916.8316.7818.3618.1220.1830計(jì)算電阻(mΩ)18414.5910.4211.177.638.386.136.884.515.26584.002.963804462.382.581.892.011.541.521.291.251.121.070.980.89計(jì)算電抗(mΩ)44.448336.2935.7231.2130.6426.025.4221.8321.2518.6618.0116.0715.4221.2220.5718.0417.4115.6714.9018312.9812.1111.2110.9810.139.979.07短路電流(kA)4.954.766.095.887.166.928.618.3610.3210.0512.1111.9214.0819310.7310.5512.6412.5014.5814.6416.5216.8318.8819.5020.8321.5922.9524.1550計(jì)算電阻(mΩ)16314.4510.2111.037.428.245.926.744.305.1237862.75242.83322.172.441.681.871.331.381.081.110.910.930.770.75計(jì)算電抗(mΩ)42.2842.4234.1734.3129.0929.2328824.0119.7119.8416.5416.6019514.0119.1019.1615.9216.0015514911.7111.579.999.808.868.727.857.66短路電流(kA)5.184.916.456.107.667.249.358.8211.4010.7416312.9116.1715.3011.9111.3114.3116016.8516.1519.5118.8822.8922.3125.8125.0929.1528.5775計(jì)算電阻(mΩ)15214.3810.1010.967.318.175.816.674.195.0526792.64172.72252.062.371.571.801.221.310.971.040.800.860.660.68計(jì)算電抗(mΩ)41.2241.7131136028.0328.5222.8223018.6519.1315.4815.8912.8913018.0418.4514.8615.2912.4912.7810.6510.868.939.097.808.016.796.95短路電流(kA)5.304.996.646.237.947.419.779.0812.0411.1214.5414617.4816.0912.6111.7515.3314.2218.2717.0421.4620.1125.6124.0429.3427.3037231.52100計(jì)算電阻(mΩ)14714.3510.0510.937.268.145.766.644.145.0221762.59142.67222.012.341.521.771.171.280.921.010.750.830.610.65計(jì)算電抗(mΩ)40.6941.3632.5832527.5028.1722.2922.9518.1218.7814.9515.5412.3612.9517.5118.1014.3314.9411.9612.4310.1210.518.408.747.277.666.266.60短路電流(kA)5.375.036.756.298.097.509.999.2112.3711.3215.0417618.2116.5012.9911.9715.8914.5519.0717.5222.5720.7727.2225.0031.4628.5736.57318200計(jì)算電阻(mΩ)13914.299.9710.877.188.085.686.584.064.9613702.51082.59161.932.281.441.711.091.220.840.950.670.770.530.59計(jì)算電抗(mΩ)39.940.8331.7932.7226.7127.6421.5022.4217.3318.2514.1615.0111.5712.4216.7217.5715414.4111.1711.909.339.987.618.216.487.135.476.07短路電流(kA)5.465.096.906.388.327.6410.349.4112.9211.6315.8614.2319.4317.1915912.3216.8115.0820.4318.3024.4921.8930.0326.6335.3330.6841.8236.07300計(jì)算電阻(mΩ)13614.279.9410.857.158.065.566.564.034.9410682.48062.56141.902.261.411.691.061.200.810.930.640.750.500.57計(jì)算電抗(mΩ)39.6340.6531.5232.5426.4427.4621.2322.2417.0618.0718914.8311.3012.2416.4517.3912714.2310.9011.729.069.807.348.036.216.955.205.89短路電流(kA)5.505.116.966.418.407.6910.479.4911211.7516.1614.4019.8817.4318112.4517.1515.2620.9318.5825.2222.2931.1727.2336.8631.4744.0637.16∞計(jì)算電阻(mΩ)13114.249.8910.827.108.035.606.53984.9105652.43032.51111.852.231.361.661.011.170.760.900.590.720.450.54計(jì)算電抗(mΩ)39.1040.3030.9932.1925.9127.1120.7021.8916.5317.7213614.4810.7711.8915.9217.0412.7418810.3711.378.539.456.817.685.686.604.675.54短路電流(kA)5.575.157.066.488.567.7810.739.6315311.9616.7914.7420.8317.9314.2712.7017.8715.6521.9919.1526.7821135828.4640.2831349.0439.50注由于SC(B)9與SC(B)10阻抗平均值相近，故該表也可用于SC(B)10。表34SC（B）9系列10(6)、0.4kV變壓器低壓側(cè)短路電流值(Y,yn0連接)高壓側(cè)系統(tǒng)短路容量(MVA)變壓器容量(kVA)16020025031540050063063080010001250160020002500變壓器阻抗電壓(%)446低壓母線段規(guī)格(WLA,mm)4×（40×4）3×(50×5)＋40×43×(63×6.3)＋40×43×(80×6.3)＋50×53×(80×8)＋50×53×(80×8)＋50×53×(100×8)＋63×6.33×(125×10)＋80×6.33×[2×(100×10)]+100×103×[2×(125×10)]+125×103×[2×(100×10)]+100×10Wcu3×[2×(125×10)]+125×10Wcu短路種類及電路阻抗三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保10計(jì)算電阻(mΩ)14.926411.4820.718.6918.047.1915.885.5710.404.648.094.026.764.107.23445.392.954.892.604.082.35212.182.572.042.14計(jì)算電抗(mΩ)55172346.91152.7641.83130.5736.62102.6032.4594.7329.2880.1626.6969.2331.8488.5628.6670.1026.2955.1724.4548522.7335.6421.6031.0520.5927.11短路電流(kA)4.041.264.761.435.381.676.162.126.992.317.762.738.52167.172.487.97138.70979.355.0010.076.1510.597.0611.128.0920計(jì)算電阻(mΩ)14.1121110.6920.187.9017.516.4015.354.789.87857.56236.23316.702.654.862.164.361.81551.562.681.392.041.251.66計(jì)算電抗(mΩ)47.06167.9338.95147.46387125.2728.6697.3024.4989.4321.3274.8618.7369328882620.7064.8018.3349.8716.4938.5514.7730.3416425.7512.6321.81短路電流(kA)4.681.305.691.486.611.747.832.239.222.4510.622.9212.10439.542.6311.023912.464.391865.6815.497.2216.788.5218.1210.0630計(jì)算電阻(mΩ)18422.9310.4220.007.6317.336.1315.174.519.69587.382.966.05046.522.384.681.894.181.54371.292.501.121.860.981.48計(jì)算電抗(mΩ)44.4166.1536.29145.6831.21124926.095.5221.8387.6518.6670816.0762.1521.2281.4818.0460215.6748.0918336.7712.1128.5610.982979.9720.03短路電流(kA)4.951.36.091.507.161.768.612.2710.322.4912.110014.085210.732.6912.644814.584.5616.525.9618.887.6720.839.1522.9510.9650計(jì)算電阻(mΩ)16322.7910.2119.867.4217.195.9215.034.309.55377.242.755.912.836.382.174.541.684.041.33231.082.360.911.720.771.34計(jì)算電抗(mΩ)42.28164.7434.17144.2729.09122.0828894.1119.7186.2416.5471.6719560.7419.1080.0715.9261.6115546.6811.7135.369.9927.158.8622.567.8518.62短路電流(kA)5.181.326.451.517.661.789.352.3111.402.541630516.176011.912.7414.315616.854.7019.516.2022.898.0725.819.7329.1511.7875計(jì)算電阻(mΩ)15222.7210.1019.797.3117.125.8114.964.199.48267.172.645.842.726.312.064.471.57971.22160.972.290.801.650.661.27計(jì)算電抗(mΩ)41.22164.03311145628.03121.3722.8294018.6585.5315.4870.9612.8960.0318.0479.3614.8660.9012.4945.9710.6534.658.9326.447.8021.856.7917.91短路電流(kA)5.301.336.641.527.941.799.772.3312.042.5614.540817.486512.612.7615.336018.274.7721.466.3225.618.2929.3410.0437212.26100計(jì)算電阻(mΩ)14722.6910.0519.767.2617.095.6714.934.149.45217.142.595.812.676.282.014.441.52941.17130.922.260.751.620.611.24計(jì)算電抗(mΩ)40.69166832.58142127.50121.0222.2990518.1285.1814.9570.6112.3659.6817.5179.0114.3360.5511.9645.6210.1234.308.4026.097.2721.506.2617.56短路電流(kA)5.371.336.751.528.091.89.992.3312.372.5715.041018.216712.992.7815.896219.074.8022.576.3927.228.4031.4610.2036.5712.50200計(jì)算電阻(mΩ)13922.639.9719.707.1817.035.6814.874.069.39137.082.515.752.596.221.934.381.44881.09070.842.200.671.560.531.18計(jì)算電抗(mΩ)39.9161531.79142.6826.71120.4921.5092.5217.3384.6514.1670.0811.5759.1516.7278.4815460.0211.1745.099.333777.6125.566.4820.975.4717.03短路電流(kA)5.461.346.901.538.321.8110.342.3512.922.5815.861219.43701592.7916.816620.434.8624.496.4930.038.5835.3310.4641.8212.89300計(jì)算電阻(mΩ)13622.619.9419.687.1517.015.6514.854.039.37107.062.485.732.566.201.904.361.41861.06050.812.180.641.540.501.16計(jì)算電抗(mΩ)39.63162.9731.52142.5026.44120.3121.2392.3417.0684.4718969.9011.3058.9716.4578.3012759.8410.9044.919.063597.3425.386.2120.795.2016.85短路電流(kA)5.501.346.961.538.401.8110.472.351122.5916.161319.88711812.8017.156720.934.8825.226.5231.178.6436.8610.5544.06103∞計(jì)算電阻(mΩ)13122.589.8919.657.1016.985.6014.82989.34057.032.435.702.516.171.854.331.36831.01020.762.150.591.510.451.13計(jì)算電抗(mΩ)39.10162.6230.99142.1525.91119.9620.7091.9916.5384.1213669.5510.7758.6215.9277.9512.7459.4910.3744.568.533246.8125.035.6820.444.6716.50短路電流(kA)5.571.347.061.538.561.8210.732.361532.6016.791520.837414.272.8117.876921.994.9226.786.593588.7640.2810.7349.04130注由于SC(B)9與SC(B)10阻抗平均值相近，故該表也可用于SC(B)10。表35S9、S9-M系列10(6)、0.4kV變壓器低壓側(cè)短路電流值(D,yn11連接)4.5高壓側(cè)系統(tǒng)短路容量(MVA)變壓器容量(kVA)200250315400500630800100012501600變壓器阻抗電壓(%)44.5低壓母線段規(guī)格(WLA,mm)4×（40×4）3×(50×5)＋40×43×(63×6.3)＋40×43×(80×6.3)＋50×53×(80×8)＋50×53×(100×8)＋63×6.33×(125×10)＋80×6.33×[2×(100×10)]+80×83×[2×(125×10)]+80×10短路種類及電路阻抗三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保10計(jì)算電阻(mΩ)12.5212.9210.3310.738.088.486.276.675.155.224.344.41675238152.902.622.912.58計(jì)算電抗(mΩ)47.3842740.7336.6236.5532.2332.2728.1529.1624.9727.9227325.6321.4127719.4622.4618.1421.0916.77短路電流(kA)4.694.875.475.776.186.607.007.607.778.628.149.138.8810.149.5811.1610.1512.0010.8012.9620計(jì)算電阻(mΩ)11.7312.399.5410.207.297.955.486.144.364.6955882.882.992.592.622.112.092.122.05計(jì)算電抗(mΩ)39.4237.9732.7731.3228.3926.9324.3122.8521.2019.6719.9618.4317.6716.1115.8114.1614.5012.8411311.47短路電流(kA)5.595.516.746.687.857.839.239.3010.6310.8811.3511.6812.8514214.3615.2815.7016.9117.2918.8830計(jì)算電阻(mΩ)11.4612.219.2710.027.027.775.215.964.094.5128702.612.812.322.441.841.911.851.87計(jì)算電抗(mΩ)36.7636.1930.1129.5425.7325.1521.6521.0718.5417.8917.3016.6515.0114.3311512.3811.8411.0610.479.69短路電流(kA)5.975.767.307.058.628.3610.3310.0512.1111.9210612.9015.0915.0717.2317.6319.2019.6121.6422.2950計(jì)算電阻(mΩ)11.2512.079.069.886.817.635.005.82884.3707562.402.672.112.301.631.771.641.73計(jì)算電抗(mΩ)34.6434.7827.9928.1326127419.5319.6616.4216.4815.1815.2412.8912.9211.0310.979.729.658.358.28短路電流(kA)6.325.987.827.389.368.8211.4110.7316312.9014.8514.0617.5416.8820.4819.6323322.4327.0326.0075計(jì)算電阻(mΩ)11.1412.008.959.816.707.564.895.75774.302.96492.292.602.002.231.521.701.531.66計(jì)算電抗(mΩ)35834.0726.9327.4222.5520318.4718.9515.3615.7714.1214.5311.8312.219.9710.268.668.947.297.57短路電流(kA)6.506.098.107.559.789.0812.0411.1114.5414615.9414.7319.0917.6322.6220.9526.1724.1830.8728.39100計(jì)算電阻(mΩ)11.0911.978.909.786.657.534.845.72724.272.91462.242.571.952.201.471.671.481.63計(jì)算電抗(mΩ)30537226.4027.0722.0222.6817.9418.6014.8315.4215914.1811.3011.869.449.918.138.596.767.22短路電流(kA)6.606.158.267.6410.009.2112.3811.3015.0417516.5515.0719.9718.1228621.6727.8525.1432429.73200計(jì)算電阻(mΩ)11.0111.918.829.726.577.474.765.66644.212.83402.162.511.872.141.391.611.401.57計(jì)算電抗(mΩ)32.2631925.6126.5421.2322.1517.1518.0714.0414.8912.8016510.5111.338.659.387.348.165.976.69短路電流(kA)6.756.248.497.7810.359.4112.9211.6215.8614.2217.5415.6421.4418.9725.9922.8730.7926.7637.5232.02300計(jì)算電阻(mΩ)10.9811.898.799.706.547.454.735.64614.192.80382.132.491.842.121.361.591.371.55計(jì)算電抗(mΩ)31.9930125.3426.3620.9621.9716.8817.8917714.7112.5314710.2411.158.389.207.077.885.706.51短路電流(kA)6.806.278.587.8310.479.4811211.7316.1514.3817.9115.8421.9919.2626.8123031.9427.3639.2532.88∞計(jì)算電阻(mΩ)10.9311.868.749.766.497.424.685.61564.162.75352.082.461.792.091.311.561.321.52計(jì)算電抗(mΩ)31.4632.6624.8126.0120.4321.6216.3517.5412414.3612.001129.7110.807.858.856.547.535.176.16短路電流(kA)6.916.338.757.9310.739.6215211.9416.7814.7218.6816.2521619.8628.5724.2034.4828.6140734.07表36S9、S9-M系列10(6)、0.4kV變壓器低壓側(cè)短路電流值(Y,yn01連接)高壓側(cè)系統(tǒng)短路容量(MVA)變壓器容量(kVA)200250315400500630800100012501600變壓器阻抗電壓(%)44.5低壓母線段規(guī)格(WLA,mm)4×（40×4）3×(50×5)＋40×43×(63×6.3)＋40×43×(80×6.3)＋50×53×(80×8)＋50×53×(100×8)＋63×6.33×(125×10)＋80×6.33×[2×(100×10)]+80×83×[2×(125×10)]+80×10短路種類及電路阻抗三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保三相正、負(fù)序單相接地相保10計(jì)算電阻(mΩ)12.5221.5910.3317.868.081286.2710.275.158.294.3410.61675.06384.532.90682.9123計(jì)算電抗(mΩ)47.3871.8040.7362.1036.3552.3232.2744.0129.1638.5427.9234325.0329.0827726.5322.4628021.0921.03短路電流(kA)4.692.935.47406.184.087.004.877.775.588.146.278.887.459.588.1810.159.0310.8010.3420計(jì)算電阻(mΩ)11.7321.069.5417.337.2912.755.489.744.367.765510.082.884.532.594.002.11152.122.70計(jì)算電抗(mΩ)39.4266.5032.7756.828.3947.0224.3138.7121.2032419.9628.1317.6727815.8121.2314.5018.5011315.73短路電流(kA)5.59156.74707.854.529.235.5110.636.4511.357.3612.858.5914.3610.1915.7011.7217.2917830計(jì)算電阻(mΩ)11.4620.889.2717.157.0212.575.219.564.097.58289.902.614.3523821.842.971.852.52計(jì)算電抗(mΩ)36.7664.7230.1155.0225.7345.2421.6536.9318.5431.4617.3026.3515.0122.0011519.4511.8416.7210.47195短路電流(kA)5.97247.3828.624.6910.335.7612.116.801067.8215.099.8117.2311.1019.2012.9621.6415.5150計(jì)算電阻(mΩ)11.2520.749.0617.016.8112.435.009.42887.44079.762.404