关于低压电容器柜设计制作选型的规定

1、关于低压电容器柜设计制作与选型的规定为了保证对低压电容器的可靠保护，根据相关规范以及GB50227-2008并联电容器装置设计规范、GB/T22582-2008电力电容器低压功率因数补偿装置(代替JB7113-93)、GB/T15576-2008低压成套无功功率补偿装置，对常用低压电容器柜的设计、制作以及出厂整定作如下补充规定：一、对电容器柜总路刀熔开关熔芯及母排的配置见下表：表1.1电网Ue=400V50Hz不带电抗器序号电容器组额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)珠Qcn(kVar)额定电流Icn=Qcn/V3/Ucn(A)实际电流Ic

2、=(Ue/Ucn)*Icn熔芯规格In心1.5Ic(A)铜排规格TMY-1360400360.00519.63519.6380050*62450284.44461.89410.5763050*53480250.00433.03360.8563050*54300400300.00433.03433.0370050*55450237.04384.91342.1463040*56480208.33360.85300.7150040*57250400250.00360.85360.8563040*58450197.53320.76285.1250040*49480173.61300.71250.594

3、0040*410200400200.00288.68288.6850040*411450158.02256.61228.1040030*412480138.89240.57200.4740030*413160400160.00230.95230.9540030*314450126.42205.29182.4830030*315480111.11192.46160.3825030*316120400120.00173.21173.2130025*31745094.81153.96136.8625025*31848083.33144.34120.2820025*319100400100.00144

4、.34144.3425020*32045079.01128.30114.0520020*32148069.44120.28100.2420020*3228040080.00115.47115.4720020*32345063.21102.6491.2416020*32448055.5696.2380.1912520*3表1.2电网Ue=400V50Hz电抗率5.4%、5.7%、7%序号电容器额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)*(Uc/Ucn)*Qcn(kVar)额定电流Icn=Qcn/V3/Ucn(A)实际电流Ic=(Uc/Ucn)*Ic

5、n熔芯规格In心1.5Ic(A)铜排规格TMY-1360450301.51461.89435.2170050*52480265.00433.03382.5170050*53525221.52395.91319.7463050*54300450251.26384.91362.6763040*55480220.83360.85318.7563040*56525184.60329.92266.4550040*57250450209.38320.76302.2350040*48480184.03300.71265.6350040*49525153.83274.94222.0450040*4102004

6、50167.51256.61241.7840030*411480147.22240.57212.5040030*412525123.07219.95177.6440030*413160450134.00205.29193.4331530*314480117.78192.46170.0031530*31552598.45175.96142.1131530*316120450100.50153.96145.0725025*31748088.33144.34127.5025025*31852573.84131.97106.5820025*31910045083.75128.30120.8920020

7、*32048073.61120.28106.2520020*32152561.53109.9788.8220020*3228045067.00102.6496.7116020*32348058.8996.2385.0016020*32452549.2387.9871.0516020*3表1.3电网Ue=400V50Hz电抗率13.7%、14%序号电容器额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)*(Uc/Ucn)*Qcn(kVar)额定电流Icn=Qcn/V3/Ucn(A)实际电流Ic=(Uc/Ucn)*Icn熔芯规格In心1.5Ic(A)铜排规格

8、TMY-1360480290.75433.03419.6763050*52525243.04395.91350.8163050*53300480242.29360.85349.7363040*54525202.54329.92292.3450040*55250480201.91300.71291.4450040*46525168.78274.94243.6250040*47200480161.53240.57233.1540030*48525135.02219.95194.9040030*49160480129.22192.46186.5231530*310525108.02175.96155

9、.9231530*31112048096.92144.34139.8925025*31252581.01131.97116.9420025*31310048080.76120.28116.5820020*31452567.51109.9797.4520020*3158048064.6196.2393.2616020*31652554.0187.9877.9616020*3说明：1、此表未列出的容量，请按相近容量考虑选择。2、QcV80kVar或Qc360kVar时，按相关公式计算所得由设计人员标注在电气图纸上。二、关于电容柜分支回路三相电容器的保护元件及保护定值的配置见下表：表2.1电网Ue=

10、400V50Hz不带电抗器(三相电容器)序号电容器组额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)球Qcn(kVar)额定电流Icn=Qcn/V3/Ucn(A)实际电流Ic=(Ue/Ucn)*Icn熔芯规格In心1.5Ic(A)热继整定值(A)导线规格BVR(mm2)16040060.0086.6186.6116010050245047.4176.9868.431257935348041.6772.1760.14100692545040050.0072.1772.171258335545039.5164.1557.021006625648034.72

11、60.1450.12100582574540045.0064.9564.951007525845035.5657.7451.32805916948031.2554.1345.11805216103040030.0043.3043.308050161145023.7038.4934.216339101248020.8336.0930.07503510132540025.0036.0936.096341161445019.7532.0828.515033101548017.3630.0725.0640296162040020.0028.8728.875033101745015.8025.6622.

12、81402661848013.8924.0620.0532234191840018.0025.9825.98403062045014.2223.0920.53322442148012.5021.6518.0432214221640016.0023.0923.09402762345012.6420.5318.25322142448011.1119.2516.0425184251440014.0020.2120.21322342645011.0617.9615.9725184274809.7216.8414.0325164281240012.0017.3217.3232204294509.4815

13、.4013.6925164304808.3314.4312.0320144表2.2电网Ue=400V50Hz电抗率5.7%、7%(三相电容器)序号电容器组额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)*(Uc/Ucn)*Qcn(kVar)额定电流Icn=Qcn/V3/Ucn(A)实际电流Ic=(Ue/Ucn)*Icn熔芯规格In心1.7Ic(A)热继整定值(A)导线规格BVR(mm2)168.145057.0487.3782.331609550248050.1381.9172.361258335352541.9074.8960.48100703546

14、0.845050.9278.0173.501258535548044.7673.1364.601257435652537.4166.8654.00100622575045041.8864.1560.451007035848036.8160.1453.131006125952530.7754.9944.41805116104545037.6957.7454.4010063251148033.1354.1347.818055251252527.6949.4939.978046161340.845034.1752.3549.3210057251448030.0349.0843.35805016155

15、2525.1144.8736.24634216163445028.4843.6241.108047161748025.0340.9036.136342101852520.9237.3930.20503510193045025.1338.4936.276342162048022.0836.0931.886337102152518.4632.9926.65503110222545020.9432.0830.225035162348018.4030.0726.565031102452515.3827.4922.2040266252045016.7525.6624.185028102648014.72

16、24.0621.25402462752512.3121.9917.7632204281845015.0823.0921.76402562948013.2521.6519.13322243052511.0819.8015.9932184311645013.4020.5319.34402263248011.7819.2517.0032204335259.8517.6014.2125164341445011.7317.9616.92321943548010.3116.8414.8825174365258.6115.4012.4325144371245010.0515.4014.51251743848

17、08.8314.4312.7525154395257.3813.2010.6620124表2.3电网Ue=400V50Hz电抗率14%(三相电容器)序号电容器组额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)*(Uc/Ucn)*Qcn(kVar)额定电流Icn=Qcn/V3/Ucn(A)实际电流Ic=(Ue/Ucn)*Icn熔芯规格In心1.7Ic(A)热继整定值(A)导线规格BVR(mm2)167.848054.7681.5579.041609150252545.7774.5666.071257635362.448050.4075.0672.7412

18、58435452542.1368.6260.81125701655048040.3860.1458.291006725652533.7654.9948.7280561674548036.3454.1352.461006025852530.3849.4943.8580501693148025.0437.2936.146342101052520.9334.0930.21503510113048024.2336.0934.976340101252520.2532.9929.23503410132548020.1930.0729.145034101452516.8827.4924.3650286152

19、2.548018.1727.0626.23503061652515.1924.7421.9340256172048016.1524.0623.32402761852513.5021.9919.4940226191848014.5421.6520.98402462052512.1519.8017.5432204211648012.9219.2518.65322142252510.8017.6015.5932184231448011.3116.8416.3232194245259.4515.4013.642516425124809.6914.4313.9925164265258.1013.2011

20、.6920134说明:1、此表未列出的容量，请按相近容量考虑选择。2、QcV12kVar或Qc68kVar时，按相关公式计算所得由设计人员标注在电气图纸上。三、关于电容柜分支回路单相电容器的保护元件及保护定值的配置见下表：表3.1电网Ue=400V50Hz不带电抗器(单相电容器)序号电容器组额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)2*Qcn(kVar)额定电流Icn=Qcn/Ucn(A)实际电流Ic=(Ue/Ucn)*Icn熔芯规格In心1.5Ic(A)热继整定值(A)导线规格BVR(mm2)12023020.0086.9686.9616010

21、050226015.6576.9268.051257835327513.9972.7360.83100702541823018.0078.2678.261259035526014.0969.2361.241007025627512.5965.4554.74100632571623016.0069.5769.571258035826012.5261.5454.441006325927511.1958.1848.66805616101523015.0065.2265.2210075351126011.7457.6951.048059251227510.4954.5545.6280521613122

22、3012.0052.1752.17806025142609.3946.1540.83634716152758.3943.6436.50634210161023010.0043.4843.48805016172607.8338.4634.02633910182757.0036.3630.41503510197.52307.5032.6132.61503810202605.8728.8525.5240296212755.2527.2722.81402662252305.0021.7421.7440256232603.9119.2317.0132204242753.5018.1815.2132174

23、2532303.0013.0413.0425154262602.3511.5410.2125122.5272752.1010.919.1220102.52812301.004.354.351052.5292600.783.853.401042.5302750.703.643.041032.5表3.2电网Ue=400V50Hz电抗率5.7%、7%(单相电容器)序号电容器组额定容量Qcn(kVar)电容器额定电压Ucn(V)电容器组有效容量Qc=(Ue/Ucn)*(Uc/Ucn)*Qcn(kVar)额定电流Icn=Qcn/Ucn(A)实际电流Ic=(Ue/Ucn)*Icn熔芯规格In心1.7Ic(

24、A)热继整定值(A)导线规格BVR(mm2)12025017.9480.0078.021609050226016.5976.9272.131258335327514.8372.7364.48125743541825016.1572.0070.211258132526014.9369.2364.921257535627513.3565.4558.03100673571625014.3564.0062.411257235826013.2761.5457.701006635927511.8658.1851.581005925101525013.4660.0058.5110067351126012.4

25、457.6954.1010062251227511.1254.5548.361005625131225010.7748.0046.81805425142609.9546.1543.28805016152758.9043.6438.6980441616102508.9740.0039.01804516172608.2938.4636.07634116182757.4136.3632.24633716197.52506.7330.0029.26503410202606.2228.8527.05503110212755.5627.2724.185028102252504.4920.0019.5040226232604.1519.2318.0332216242753.7118.1816.12321942532502.6912.0011.7020134262602.4911.5410.8220124272752