各类电抗器计算

word如下1. 进线电抗器1.1 进线电抗器的额定电流ILN：对直流传动装置(6RA70)： ILNdN (A)式中：IdN：传动装置额定整流电流，通常即为由其供电的电动机的额定电流 (A)。对电压型变频器(6SE70)： ILN=1.1I (A)式中：I：变频器额定输出电流，通常即为由其供电的电动机的额定电流 (A)。对6SE70中的整流单元和整流/回馈单元： ILNdc (A) 式中：Idc：整流单元或整流/回馈单元额定输出电流 (A)。1.2 进线电抗器的电感值L：对直流传动装置(6RA70)和6SE70中的整流/回馈单元按压降4%选择L：LN/(32fILN) (H) 式中：ULN：进线电压的线电压有效值 (V) f：电网频率 (Hz)ILN：进线电抗器的额定电流 (A)当f=50Hz时：ULN/ILN (H) 也可根据进线电抗器的进线电压ULN和额定电流ILN直接从下面的表1.1表1.4中选择进线电抗器(适用于f=50Hz)。对变频器(6SE70)和6SE70中的整流单元，按压降2%选择L：ULN/(32fILN) (H) 式中：ULN：进线电压的线电压有效值 (V) f：电网频率 (Hz)ILN：进线电抗器的额定电流 (A)当f=50Hz时：ULN/ILN (H)也可根据进线电抗器的进线电压ULN和额定电流ILN直接从下面的表1.5表1.8中选择进线电抗器(适用于f=50Hz)。ILN (A)1828405063L (H)156512581006894794704563447订货号K119-513K119-514K119-515K119-516K119-517K119-518K119-519K119-520718091100112125140160180397352310282282252201176157K119-521K119-522K119-523K119-524K119-525K119-526K119-527K119-528K119-529200224250280315355400450500141126113101K119-530K119-531K119-532K119-533K119-534K119-535K119-536K119-537K119-5385606307109101000112012501400160031K119-539K119-540K119-541K119-542K119-543K119-544K119-545K119-546K119-547ILN (A)4050637180L (H)163411621031915732581516458订货号K119-548K119-549K119-550K119-551K119-552K119-553K119-554K119-55591100112125140160180200224402366327293262229203183163K119-556K119-557K119-558K119-559K119-560K119-561K119-562K119-563K119-564250280315355400450500560630145130116103K119-565K119-566K119-567K119-568K119-569K119-570K119-571K119-572K119-57371091010001120125014001600K119-574K119-575K119-576K119-577K119-578K119-579K119-580ILN (A)63718091100112125L (H)803713633556506452405订货号K119-581K119-582K119-583K119-584K119-585K119-586K119-587140160180200224250280315362316281253226202181166K119-588K119-589K119-590K119-591K119-592K119-593K119-594K119-595355400450500560630710910143126112101K119-596K119-597K119-598K119-599K119-600K119-601K119-602K119-60310001120125014001600K119-604K119-605K119-606K119-607K119-608ILN (A)100112125140160180200L (H)551491441393344305275订货号K119-609K119-610K119-611K119-612K119-613K119-614K119-615224250280315355400450500246220197175155138122110K119-616K119-617K119-618K119-619K119-620K119-621K119-622K119-62363071091010001120125014001600K119-625K119-626K119-627K119-628K119-629K119-630K119-631K119-632ILN (A)581618L (H)282022361763154812581128883783订货号K119-401K119-402K119-403K119-404K119-405K119-406K119-407K119-408284050637180630503448397352282224199176K119-409K119-420K119-411K119-412K119-413K119-414K119-415K119-416K119-41791100112125140160180200224155141126113101K119-418K119-419K119-420K119-421K119-422K119-423K119-424K119-425K119-426250280315355400450500560630K119-427K119-428K119-429K119-430K119-431K119-432K119-433K119-434K119-43571091010001120125014001600K119-436K119-437K119-438K119-439K119-440K119-441K119-442ILN (A)581618L (H)36732915229620181640146911481020订货号K119-443K119-444K119-445K119-446K119-447K119-448K119-449K119-450284050637180820656583517459367292259230K119-451K119-452K119-453K119-454K119-455K119-456K119-457K119-458K119-45991100112125140160180200224202184164147131115102K119-460K119-461K119-462K119-463K119-464K119-465K119-466K119-467K119-468250280315355400450500560630K119-469K119-470K119-471K119-472K119-473K119-474K119-475K119-476K119-47771091010001120125014001600K119-478K119-479K119-480K119-481K119-482K119-483K119-484ILN (A)63718091100112125L (H)403357285279254227203订货号K119-485K119-486K119-487K119-488K119-489K119-490K119-491140160180200224250280315181159141127113101K119-492K119-493K119-494K119-495K119-496K119-497K119-498K119-499355400450500560630710910K119-500K119-501K119-502K119-503K119-504K119-505K119-506K119-50710001120125014001600K119-508K119-509K119-510K119-511K119-512ILN (A)405063718091100L (H)282282252201176157141订货号K119-524K119-525K119-526K119-527K119-528K119-529K119-530112125140160180200224250282252201176157141126113K119-525K119-526K119-527K119-528K119-529K119-530K119-531K119-532280315355400450500560630101K119-533K119-534K119-535K119-536K119-537K119-538K119-539K119-5407109101000112012501400160031K119-541K119-542K119-543K119-544K119-545K119-546K119-5472. 输出电抗器2.1 输出电抗器的额定电流变频器或逆变器所用的输出电抗器的额定电流ILN可按下式选择 ILN=IMN (A) 式中：IMN：由变频器或逆变器供电的电动机的额定电流 (A)2.2 输出电抗器的电感输出电抗器的电感量L可按下式选择MN/(32fILN) (H) 式中：UMN：由变频器或逆变器供电的电动机的额定电压 (V) f：电网频率 (Hz)ILN：输出电抗器的额定电流 (A)当f=50Hz时：UMN/ILN (H) 也可根据由变频器或逆变器供电的电动机的额定电压UMN和输出电抗器的额定电流ILN直接从下面的表2.1表2.2中选择输出电抗器(适用于f=50Hz)。ILN (A)3447L (H)1370830483332292220180订货号K220-239K220-240K220-241K220-242K220-243K220-244K220-245617592123146156185225140113926958544138K220-246K220-247K220-248K220-249K220-250K220-251K220-252K220-25325030031533437040045051034282724232119K220-254K220-255K220-256K220-257K220-258K220-259K220-260K220-2616306907508601000130010K220-262K220-263K220-264K220-265K220-266ILN (A)61620253847L (H)21221243795636510335270订货号K220-267K220-268K220-269K220-270K220-271K220-272K220-27355637586961121451602302001701481321148880K220-274K220-275K220-276K220-277K220-278K220-279K220-280K220-2811852242603153704004505106957494035322825K220-282K220-283K220-284K220-285K220-286K220-287K220-288K220-2895606307108009101000-232018161413K220-290K220-291K220-292K220-293K220-294K220-2953. 平波电抗器3.1 平波电抗器的额定电流平波电抗器的额定电流ILN可按下式选择 ILN=IMN (A) 式中：IMN：由整流器供电的电动机的额定电流 (A)3.2 平波电抗器的微分电感平波电抗器的微分电感L可按下式选择L=KmdKUVUV/(IMN )-LM-KLLT (mH) 式中：UV：由变频器或逆变器供电的电动机的额定电压 (V)：允许的电流脉动率IMN：由整流器供电的电动机的额定电流 (A)LM：电动机电枢回路电感 (mH)LT：整流变压器漏感(折合到二次侧)或进线电抗器电感 (mH)Kmd、KUV、KV：计算系数具体的计算步骤和有关计算系数的数值，可参见我所编写的“电气传动自动化技术手册第5章中的有关内容。在报价或初步估算时，对于三相桥式整流系统，也可根据平波电抗器的额定电流ILN直接从下面的表3.1表3.2中选择平波电抗器。表3.1是铁心电抗器，表3.2是空心电抗器。铁心电抗器体积小，但微分电感值与电流有关。空心电抗器体积大，但微分电感值与电流无关。一般小电流时选铁心电抗器，电流大时铁心电抗器较贵，多项选择择空心电抗器。ILN (A)10205080100125L (mH)16011263452520订货号K425-015K425-043K425-052K425-067K425-089K425-112K425-140160200315360450560630800161086K425-165K425-177K425-222K425-223K425-239K425-254K425-255K425-28210001250160020002K425-308K425-334K425-335K425-360ILN (A)63080010001250140016001800L (mH)2订货号K526-010K526-030K526-045K526-060K526-076K526-093K526-11320002200250028003150360040004500K526-130K526-150K526-165K526-184K526-203K526-224K526-242K526-267500056006300K526-288K526-312K425-3327 / 7