变压器空载无功计算

1、变压器空载无功计算配电变压器空载无功损耗的就地补偿容量的计算在配电系统中变压器的空载无功损耗是用来产生激磁电流，或者说是空载电流I0的，与负荷无关。而且当一次电压不变时，具值基本上是个恒量。由电工原理知道：电容电流与电感电流方向相反，其相位超前电压90利用这个原理，可以用电容电流来抵消变压器的激磁电流（即电感电流）使电网总的无功电流减少，具体办法是配电变压器高压侧就地并入适当容量的电容器。补偿之后，这部分无功功率不像补偿前那样由电网输送，而且由就地补偿电容器供给。这样可以提高电网输送能力，减少线路和变压器损耗，减轻电源负担。根据变压器空载无功损耗计算公式:-1空-(Kvar)式中：1空变压器空

2、载电流的百分值（标么值）Sn变压器额定容量，KVA所需安装补偿电容器容量用Qc表示，Qc=Q空，即得:-1空-Qc而Sn(Kvar)【例11查产品目录手册的SL7-200/10型变压器的空载电流为2.4,则2.4%Qc2004.8(Kvar)c100【例2】查产品目录手册的S7-200/10型变压器的空载电流为1.5,则15%Qc=*200=3.0(Kvar)产品目录所列变压器空载电流百分值是一个保证值，实际上生产出来的变压器的空载电流百分值远小于此值，一般仅为保证值的50%60%左右，实际计算时，应从实际产品样本或说明书上查得空载电流百分值。变压器损失计算数据型号容1J空载损失短路损失空载电

3、流短路电压有功不变损失无功不变损失有功损失常数无功损失常数s7800.271.652.404.5019413821.28906252.8125000S71000.322.002.304.5023016561.00000002.2500000S71600.462.852.104.5033124190.55664061.4062500S72000.543.402.104.5038930240.42500001.1250000S72500.644.002.004.5046136000.32000000.9000000S73150.764.802.004.5054745360.24187450.714

4、2857S4000.95.81.94.566254820.18120.56257:2000:500000S75001.086.901.904.5077868400.13800000.4500000S76301.408.501.805.50100881650.10707990.4365079S78001.6610.401.805.501195103680.08125000.3437500S710001.9312.181.705.501390122400.06090000.2750000S712502.3514.491.605.501692144000.04636800.2200000S71600

5、3.0017.301.505.502160172800.03378910.1718750S9300.130.602.104.00944543.33333336.6666667S500.10.82.04.01227201.74004.000097700r000000S9630.201.041.904.001448621.31015373.1746032S9800.241.251.804.0017310370.97656252.5000000S1000.21.51.64.020911520.75002.00009:9000:000000S91250.341.801.504.0024513500.5

6、7600001.6000000S91600.402.201.404.0028816130.42968751.2500000S92000.482.601.304.0034618720.32500001.0000000S92500.563.051.204.0040321600.24400000.8000000S93150.673.651.104.0048224950.18392540.6349206S94000.804.301.004.0057628800.13437500.5000000S95000.965.101.004.0069136000.10200000.4000000S6301.26.

7、20.94.586440820.07810.357190000r053429S98001.407.500.804.50100846080.05859380.2812500S910001.7010.300.704.50122450400.05150000.2250000S1251.912.0.64.514054000.03840.180090r500004:000000S916002.4014.500.604.50172869120.02832030.1406250SJ1000.732.407.504.5052654001.20000000.2500000SJ1351.003.157.504.5

8、072072900.86419751.6666667SJ1801.204.107.004.5086490720.63271601.2500000SJ2401.605.107.004.501152120960.44270830.9375000SJ3201.906.207.004.501368161280.30273440.7031250SJ5602.509.406.004.501800241920.14987240.4017857S7504.111.96.04.529532400.10570.3000J000020r778000SJ10004.9015.005.004.503528360000.

9、07500000.2250000SJ13506.0019.505.004.504320486000.05349790.1666667S1808.024.4.54.557658320.03700.1250JJo:0000000:370000SJ320011.0037.004.005.507920921600.01806640.0859375SJ420014.0047.004.005.50100801209600.01332200.0654762SJ560018.0056.004.005.50129601612800.00892860.0491071SL1000.622.257.504.00446

10、54001.12500002.0000000SL1250.742.707.504.0053367500.86400001.6000000SL1600.873.307.004.0062680640.64453131.2500000SL2001.003.907.004.00720100800.48750001.0000000S2501.24.66.54.086411700.36800.8000L00000r000000SL3151.455.606.504.001044147420.28218690.6349206SL4001.756.706.504.001260187200.20937500.50

11、00000S5002.08.26.04.014721600.16400.4000Lr500060:000000SL6302.4510.006.004.501764272160.12597630.3571429SL8003.1512.005.504.502268316800.09375000.2812500SL10003.7014.505.004.502664360000.07250000.2250000SL12504.3517.505.004.503132450000.05600000.1800000SL16005.3020.504.504.503816518400.04003910.1406

12、250SL20006.3024.504.504.504536648000.03062500.1125000SL25007.4028.504.505.505328810000.02280000.1100000S3157.833.4.05.556190720.01680.0873L00500060r808016SL400010.4039.504.005.5074881152000.01234380.0687500SL500012.5047.304.005.5090001440000.00946000.0550000S63014.56.4.05.510618140.00700.0436L,08000

13、005640:5471508I切6SI来科/祖以甘能蹙伍等li本季麟高巾幅.23、1内！/屏II)低压TOUKV就附用;Eynu啾小油|调瓜益图T上&W工EK&St声总程号ui.i:：Y%倔Hw(«.aam1FIT>外用尺寸TTJg<fcLi机凝蓟511人IU则皿4,01.4:左桢痢住射sxistxhiuSli-M1U加i.sUH州LJ为酱4U0.讣-1卜E1M5ML潞IU印l?U1(MJu.取1W450捌-4U：kIII：-11&1，1。fillI7S国I上15105F<1140|凶LJULUbiKJ眦51.JJ2?.1125士神1皿LW仙

14、HbJj-!>.!-jjrSll-l&.i."Jiflo2713:山口kJ颉185胤。!'.-',：-'''illLIUKJ.'a2W解5婀U闻9U5l：；JyLibux1400hri?5Qgli由H*HrlJ1440i?517IZSnX-4FSXI1*b4W,1y4WTUI也I例NJL'X/JJJM.1500(5755：EKI0.71145245ItifiLl7jX?j5.KltkSilfkW.'LJOJ京迎4.5aB丽XW招州!i,(JXIStn.3J町HO75HMJUJ；W>43525&

15、Q刑55¥T31N-ooi10：WU.5一770制一;weo1K>1(17r-2D.vi、iiihudi澈iWWas八Jew1r-I'l-'".'Iiill-bUl.V：WWLUiOI4.XWUJ为打4JI5-II"-.111_WW：QLUUb四5。7LjOasell二乂町,o-i?UVl£Hi9HJWk，IUkV纨$9第囹常IS%M乐呵七功依毒IJ旭电变小器技术功敕额定容量(m)电压细合主裁损耗CT)负羲损耗5)空教电流00短路羽抗(%)外形尺寸aaLXWXH诲压CKV)高压分按范圉器身£把停油电总重Gm)0V)

16、标号106;63；66;10.103;11；士2*25%04YyrtO或Tlynl170300244.08030200400X400910X4J0<10102010030023125652B0400x4001040X745X104530130SDO2.116570320400X4001060X730<1130501708702.023085420400x4501105X755K122063JH10«1.927095485400X4501130X735<12308025012301.8320100550400x4501125X755*12801002901500163

17、50110590400X4501130X815X1320125340180013420125710400X型1280X820*13901604.-n22001.43D0140820550x5501230X840KU20200480250013595160970550X5501360X855K145025056030301.27301921180550*6501410xyju工1510315703630118402151330550X6S0142DX1033K153040080043001.010152B01630550X7501540X1133<161030096051301.01193

18、3051880660x7501595X1280X167063012006200094.514804102360660X8501955X1325<1880800140075000.8172D4502750820x8501975X1335<191000170010300071875S25F4'|820x8502D0X1340<2D2D12501950120000.62235GD53570820X8503365X1350<207516002400145000.626606654340820x9002130X1375*21352000290013山0.634001200

19、6100820X9002870X1970X29CDSC(B)9干式变压笈舛能参数、外形及安装尺1，型号性能参数尺寸阻抗电JkIM量饯损Ha<120JC)空发电流10%噪音dB外杉尺、JI.XBXHlimn12mBliwB2nrnS9-10015016002.01I0OX71OX1000ri()320310600SC9-125谢19501.9421160X710X1095660仅50350310250690SC9-16061022501.94312U0X710X1095t<i03703152.7905c9-20070026701.8431210X870XII65卜？0H2037031

20、522R920SC9-2508102910L8451280X870X1185T)8203,广3252351080SC9-31599036HoLH46132OXH7OX12H5H20B2041033F25014H0SCB9-KX)110042201.8471480X870X13657。8201353402501720SCB950013055170l.«48151OXH7OX142OK20H2(»凶34525m1920SCB9-63015006200L649155OX87OX1610卜2()66019036F3002210SCB9-6301460631016501580X870

21、X11258208204903783052250SCB9-8001710737016511650X1120X15101070107051()382:(尸2650SCB9-100061990861014511690X1120X1660107010705153853102960SCB9-125023501026014521720X1120X17S0107010705551103153375SCB9-1R(X27551242014531740X1120X1920H)7D1070570130佃0SCB9200(3735153M12531760X1120X205010701070575MO3354768

22、SCMF25OO45001K21X)1251ISOOX1120X214()107U10706001153406650FCRMO十式支k密叫诙参数.外修及女&尺L型号性能参数尺、重kb阳杭电H；Vk空式物耗f负我根耗w<120cC>空我电流哽音dB外形尺寸1.XBXII1Inm1"in13irnRlrtwB2m»iSC10-100410015701.8421120X710X1020660660?.-0310250630SC10-1254701840,6421180X7I0X106066(1660:(31025(1730SCIO-16054021301.61

23、1220X710X111066066()370-r25R810SC10-20062025201.6431260X870X1185820820370.i.-，950SC10-25072027501.6451300X870X12008208203952551110SCIO-315R8034701.41MOX870X130082clR20110：,在25512()0SC,B10-40098039901.44715OOXK7OX13K5«20K204353102551550S(BKF50011601««0J48I560X870XM1082(182()4?5：,k()175

24、0SCR10-630134058701.2491570XR70X1620820，心)4903GR3001900SOUOf30130059601.2ro16OOXR7OX114O8208203781,0IRROSCB10-80015206950L2511670X1120X156010701070510n°l21hOS(BIO-1(X)017708130L01700X1120X16801070107()545385261(1<RIO-125O6209096901.0521740X1120X180010701070E1103202910SCB15L6002150117301.0531

25、760X1120X191010701070570130103930SCBG200Q3320144500.8531780X1120X20701070：.(575140闷12；(»STRI0-2500100017170O.R54IR20X1120X216010701070600145.3l：(»IOkVttS7系拜交乐裔技术学故产M型“诵定容量(kVA)损耗(I)如踏卬抗(%)空载电流(%).量(kg)轨距(m)外形尺寸(UD)空载负ISIBdHt油重总项S7-3O/IO301497924.014374293S750/10501«7115222192408S7-63/

26、10632201398255105470S7-80/10802661614299III529S7-I0U/10too3021925334128614S7T25/101253462438382153714S7-I60/I0160443277147。169840S7-2W/I0200538343152«197955S7-250/I060539356372111105S7315/101576647957402451283S7-400/104008755800897279535S7500/10500103U66861U703371857S7630/1U63U129081694.513

27、1;244224OUS7-800/108001476968U817«47082550S7-IU00/10100U1777115304.520366923202S7T250/1012502198137934.522537753513S735M节能电力交A电气车依M号(kVA)/定电限Ort)IHIt(w)hfjriLQI海代)飒标耳«9(kg)外也尺寸WR欣低从Vtt旬路MEtwillm(v油油偏阴flKTtAS7-5O3550350.426513506.52.8YynO.小，300220785mo«951735660X660S7100351037022502.61

28、3552701035117010101855660X660S71253513542026502.5580410290117012101050I93S660X660S7H601516047031502.46854653201360122511052025660X660S7-2003520055037002.27955152801575128011202060660X660S7-250/3525061044002.092556010017551365UOO2120660X660$7715535315760fx»O2.0IG<S4so1995I75S晒220.660X660S7-I003510092061001.91310田SO52270187510452270660X660S7500355001080770019MIO8053650IWIH53335820X820S7630356J0130092001.81570905S02990201512452430820X820S7-800351.520501080S503850233011652715820X820$7-1000351.4237512401120<525223512502880820X82057-12503512501.2二6851106131551702-'b513202