[毕业设计]220kv变电站及其综合自动化系统方案设计

A2A2A0A1A3A3A0A1A4A5A6A7A10A8A9A11A12A13A14A15A16A17A18A19A201第一章应该是摘要第二章原始资料（设计工程概况）11变电所规模及性质大型城市变电站（终端站）电压等级220KV/110KV/35KV线路回数220KV本期2回交联电缆（发展一回）；110KV本期4回电缆线路（发展2回）；35KV30回电缆线路，一次性配齐12短路参数及负荷情况见设计任务书。13设计内容要求见设计任务书。（这两部分应该写清楚）220KV变电站及其综合自动化系统方案设计首先,确定了解变电站的功能,进出线回数,变压器台数,交换功率大小,然后确定母线型式,最后配置保护,自动装置A21A21A22A23A24A24A22A23A25A26A27A28A29A30A31A32A33A34A35A36A37A38A39A40A412第二章变电所电气主接线的确定电气主接线是电力系统的重要组成部分，它的设计形式直接关系全所电气设备的选择和配电装置的布置。它的设计应以设计任务书为依G6466，以G3281G4490G7389关G13475G8994G5326设G7053G19036G451G6931G12586及G7389关G6228G7427规G14551为G1946G2029，G13479G2524G5049G12255G1867G1319G10317G9869G7481确定，要求G4445全G2499G19764G451G12295定G9801G8975G451G7053G1427G13475G8994。21主变压器容量和台数的选择211主变压器的台数G5465设计变电站为大型的城市变电站，负荷G17751重（本期最大负荷150G14210G323G250G48VG36,G17840期最大负荷240G14210G32450G48VG36），G2460G3252是城市变电站，负荷G17751为重要，G1000为终端变电站，要求电压质G18339是G2499以G16855G14422的，G10628G3324市G3342G990G10995G1147的变压器的容G18339，选择2台变压器G993能G9397G17287负荷的要求，G6117选择4台G11468G2528容G18339的变压器。212主变压器容G18339G7693G6466G17828G15904G13475G20576，变压器的容G18339应保G16789G3324G7389一台G7828G1474的情况G991，G1866G1194变压器能G5114全部负荷的G260G8，G6365任务书G13485定的G17176G7021（G6365G17840期最大负荷G12651），G23753台主变的容G18339应G9397G17287G260G8的负荷G19668求，G3252G8504本设计的主变G8611台应G5114负荷为G62（240G14210）G104G260G8G64/3G32105（G48VG36），所以G6117G1216选择的主变容G18339为120G48VG36变压器。213主变型式本设计220KVG19489压G2052110KV和35KV两G1022电压等级，G3252G8504G18331G11004G989G13481组变压器。214G16855压G7053式G7693G6466G3332G2318及负荷的要求，变压器选择G7389G17745G16855压G7053式。G7693G6466以G990G2419G2029，G7609G19417G7389关G17176G7021，选择的主变压器G6228G7427数G6466G3926G991型G2507G54G41G51G54G61A42G16120000/220容G18339120G48VG36容G18339G8616120/120/120A43A43A44A45A46A46A44A45A47A48A49A50A51A52A53A54A55A56A57A58A59A60A61A62A633G20081定电压G20652压220G102G27G104125G8G1025压121G1314压3G275联G13479组G7643G2507G60G49，G92G810,G7111G6451G13803G12366G17745144KG58负G177454G270KG58G12366G17745电G89810G28G8G19471G6251电压G20652G16G102514G8G20652G16G131424G8G1025G16G1314G28G822电气主接线方案的拟定221G7053G7708（见图2G161）图2G161分析G3252本220KV变电所G993仅供本G3332G2318的负荷，还G19489压G2052110KV向另一终端变电所转供大G18339的负荷，所以G7053G7708G3324220KVG20652压侧G18331G11004“双母线G5114旁路接线”，它G1867G7389供电G2499G19764G451G7828G1474G7053G1427G451G16855度G9801G8975及G1427于扩G5326等优G9869。110KV侧G18331G11004“双母A43A43A44A45A46A46A44A45A47A48A49A50A51A52A53A54A55A56A57A58A59A60A61A62A634线接线”。35KV侧G18331G11004“单母线分段G5114旁路接线”，G1427于分段G7828G1474母线及各出线断路器。当一段母线发G10995故障时，自动装置将分段断路器跳开，保G16789正常母线G993间断供电，两段母线G2528时故障的机率极小，G2499以G993予考虑。222G7053G7708（见图2G162）分析考虑220KV本期只G7389两条进线及本所只G7389两台主变压器，所以G7053G7708G3324220KVG20652压侧G18331G11004“单母线分段接线”，G18331G11004“单母线分段接线”虽然使G11004断路图2G162器数G18339少G451布置简单G451占G3332少G451造价G1314，但G3324变压器故障时G19668停G11468应线路，G1000隔离开关G2460作为操作电器，所以G2499G19764性差。110KV侧G18331G11004“单母线分段接线”，四条出线从G993G2528分段G990引接以提G20652供电G2499G19764性，G8504种接法的优G9869表G10628G3324简单清晰，设备少，投G17176小，G17828G15904操作G7053G1427，G1427于分段G7828G1474母线。当一段母线发G10995故障时，自动装置将分段断路器跳开，保G16789正常母线G993间断供电，两段母线G2528时A43A43A44A45A46A46A44A45A47A48A49A50A51A52A53A54A55A56A57A58A59A60A61A62A635故障的机率极小，G2499以G993予考虑。当一条出线断路器故障或G7828G1474试G20576时，G993会对另一终端变电所造成停电。35KV侧G18331G11004“单母线分段G5114旁路接线”，G8504接线的优缺G9869已G3324前文G1025叙述，G993再赘述。223G7053G7708（见图2G163）图2G163分析G7053G7708G3324220KVG20652压侧G18331G11004“单母线分段接线”。110KV侧G18331G11004“双母线接线”，它G1867G7389供电G2499G19764G451G7828G1474G7053G1427G451G16855度G9801G8975及G1427于扩G5326等优G9869，但当母线系统故障时，G19668短时切除四条出线，使另一终端变电所全停。35KV侧G18331G11004“单母线G5114旁路接线”，虽然对断路器G7828G1474试G20576等均G7389好处，但当母线故障时，会造成10KVG11004户断电，G2499G19764性差，故G993宜G18331G11004。224G7053G7708（见图2G164）分析本G7053G7708G3324220KV侧G18331G11004“单母线接线”，虽简单清晰，设备少，A43A43A44A45A46A46A44A45A47A48A49A50A51A52A53A54A55A56A57A58A59A60A61A62A636图2G164投G17176小，但当母线出G10628故障时，会造成全所停电及另一终端站的停电。供电G2499G19764性G993好。110KV侧G18331G11004“双母线分段接线”，它G2528时G1867备双母线和单母线分段的G10317G9869，G1867G7389很G20652的G2499G19764性和G9801G8975性，但由于G20652压断路器及配电装置投G17176G17751大，只适G2524于G2510KV电压等级。35KV侧G18331G11004“双母线接线”它G1867G7389供电G2499G19764G451G7828G1474G7053G1427G451G16855度G9801G8975及G1427于扩G5326等优G9869，但当出线断路器G7828G1474或故障时，无法将负荷及时送出，会造成重要G11004户的长时停电，故G993宜G18331G11004。225G7053G7708（见图2G165）分析G7053G7708的220KV侧G18331G11004“单母线接线”，G8504接法的优G9869表G10628G3324简单清晰，设备少，投G17176小，但当母线出G10628故障时，会造成全所停电及另一终端站的停电。110KV侧G18331G11004“双母线G5114旁路接线”，G1867G7389十分好的G2499G19764性及G9801G8975性，但使G11004设备多，投G17176大。35KV侧G18331G11004“单母线接线”，G8504接法的优G9869表G10628G3324简单清晰，A64A64A65A66A67A67A65A66A68A69A70A71A72A73A74A75A76A77A78A79A80A81A82A83A847图2G165设备少，投G17176小，但当母线出G10628故障或短路器G7828G1474试G20576时会造成10KV重要G11004户的长时间的停电。由以G990的分析，初步选定G7053G7708和G7053G7708为本设计的主接线G7053G7708，G13475详细的G8616G17751后选定最终G7053G7708。23最佳方案的确定G6117G3281变电所设计G6228G7427规G12255规定“变电所的主接线应G7693G6466变电所G3324电力系统G1025的G3332位G451回路数G451设备G10317G9869及负荷性质等条件确定，并G1000应G9397G17287G17828G15904G2499G19764，简单G9801G8975，操作G7053G1427和G14422约投G17176等要求”。G10628就G7053G7708和G7053G7708的G2499G19764性G451G9801G8975性和G13475G8994性进G15904详细G3332G8616G17751，筛选出最佳G7053G7708。1G451供电G2499G19764性的G8616G17751G7053G7708的220KVG20652压侧G18331G11004“双母线G5114旁路接线”，当一段母线出G10628故障时，A85A85A86A87A88A88A86A87A89A90A91A92A93A94A95A96A97A98A99A100A101A102A103A104A1058及时将G17828G15904G7053式改变G2052另一母线G990G17828G15904，只能短时造成全所停电及另一终端站的停电。而G7053G7708的220KV侧G18331G11004“单母线接线”，当母线出G10628故障时，就会造成全所及另一终端站的长时间的停电。110KV侧接线G7053式的G2499G19764性基本G11468G2528，G993G19668G8616G17751。35KV侧G7053G7708G18331G11004“单母线分段G5114旁路接线”，当一段母线发G10995故障时，保护装置将分段断路器跳开，保G16789正常母线G993间断供电，G993会造成35KV的G11004户全部停电，G1000故障段的重要G11004户G2499G13475过旁路母线G5114出。G7053G7708G102535KV侧G18331G11004“单母线接线”，当母线出G10628故障或出线短路器故障时会造成35KV重要G11004户的长时间的停电。两G7053G7708的G2499G19764性G11468G8616G17751，G7053G7708的G2499G19764性G17840G8616G7053G7708的G2499G19764性强。2G451G9801G8975性的G8616G17751220KV侧G7053G7708G2499选择任一段母线G17828G15904，随时G7828G1474任一组断路器及母线G990的设备，G7053G7708的接线就只能一种G7053式G17828G15904。110KV侧两G7053G7708都G1867G7389很G20652的G9801G8975性，虽然G7053G7708的G9801G8975性要G20652一些，G2375G8611条出线断路器的G7828G1474G451试G20576都G2499随时进G15904，但是四条出线向另一终端站送电，没G7389必要选择G8504种G9801G8975性。35KV侧两G7053G7708G17828G15904G16855度G9801G8975，四台主变G2499以单独并列G17828G15904，也G2499全部并列G17828G15904。但是主变解列G17828G15904时G7053G7708的负荷G2499分别由四台G1025的两台主变G5114出，G7053G7708的负荷只能由G1866G1025两台主变G5114出，另两台主变G12366G17745。3G451G13475G8994性的G8616G17751G3324主接线设计时，主要矛盾往往发G10995G2499G19764性与G13475G8994性之间，G3252G8504G3324G9397G17287供电G2499G19764，G17828G15904G9801G8975G7053G1427的基础G990，尽G18339使设备投G17176G17165G11004和G17828G15904G17165G11004为最少。G7053G7708G8616G7053G7708220KVG45135KV设备多。但110KV设备G7053G7708G8616G7053G7708少一些。G1120G13785G11468G8616，G7053G7708G8616G7053G7708投G1849的G17176G18341要多一些。A106A106A107A108A109A109A107A108A110A111A112A113A114A115A116A117A118A119A120A121A122A123A124A125A1269虽然G7053G7708G8616G7053G7708投G1849G17176G18341多，但从G2499G19764性和G9801G8975性G13520G2524的G11487，G7053G7708G7186然优于G7053G7708的设计。G3252G8504本设计最终确定的G7053G7708为设计G7053G7708。24所用电源的引接241所用电源引接的原则1G451负荷的种G12879本变电所的所G11004电负荷主要是变压器强G17855G8845G5502G10627G1931G2376装置的G8845G8905G451G20130G6171；G15000电G8756G1817电设备；G8845处G10714设备；G18331G7274G17902G20130；G10043G7138及供G8712G8905G11004电等。2G451负荷的重要性G3252本所两台主变压器为强G17855G8845G5502G10627G1931G2376的变压器，要求所G11004变分别接G3324两G1022G993G2528的电G9316G990，以保G16789G3324变电所所内停电时，G1185能使所G11004电G5483G2052G993间断的供电。242所G11004变的供电电压及型G2507G451容G18339所G11004电G4658于G1314压G11004户，本站G4658大型的220KV变电站，G1866供电电压为3G270VG989G11468四线G2058，G11004电容G18339都G17751110KV大，G3252G8504将供电电压选为35KV。选择G54G47A127G16500/35，G1314压04KV,容G18339500KVG36变压器两台。243供电G7053式供电G2499G19764性是所G11004电的首要保G16789，G3324本供电系统G1025所G11004电应为0级G11004户。G13479G2524G1866供电电压及G1866容G18339，G2499将一台所G11004变压器引接于35KV段母线G990，另一台所G11004变压器引接于35KV段母线G990。两所G11004电G9316G18331G11004G7138备G11004G7053式，并G1000装设备G11004电G9316自动投G1849装置G7481保G16789G1866G2499G19764性。A128A128A129A130A131A131A129A130A132A133A134A135A136A137A138A139A140A141A142A143A144A145A146A147A14810第三章短路电流的计算31短路电流计算的目的及规定311短路电G8981计G12651的G11458的G3324变电所的电气设计G1025，短路电G8981计G12651是G1866G1025的一G1022重要G10627G14422。G3324选择电气设备时，为保G16789G3324正常G17828G15904和故障情况G991都能G4445全G451G2499G19764G3332G5049作，G19668要进G15904全G19766的短路电G8981计G12651。G1375G3926计G12651G7588一时G2063的短路电G8981G7389G6940G1552，G11004以G7669G20576开关设备的开断能力和确定电G6251器的电G6251G1552；计G12651短路后G17751长时间短路电G8981G7389G6940G1552，G11004以G7669G20576设备的G9921G12295定G1552；计G12651短路电G8981G1926G1999G1552，G11004以G7669G20576设备动G12295定。312短路电G8981计G12651的一G14336规定3121电力系统G1025所G7389电G9316均G3324G20081定负荷G991G17828G15904；3122短路种G12879一G14336以G989G11468短路计G12651；3123接线G7053式应是G2499能发G10995最大短路电G8981的正常G7053式（G2375最大G17828G15904G7053式），而G993能G11004仅G3324切换过G12255G1025G2499能并列G17828G15904的接线G7053式。3124短路电G8981计G12651G9869G3324正常接线G7053式时，G17902过电气设备的短路电G8981为最大的G3332G9869。3125计G12651容G18339应G6365G5049G12255设计规G2022容G18339计G12651，并考虑系统发展规G2022。32短路电流的计算G2474基G1946容G18339为G54A149G32100G48VG36，基G1946电压为G56A149G32G56A150G2460依G1856式G44A151G32G54A149/G2843G56A152；G59A149G32G56A149A153/G54A149，计G12651出基G1946G1552G3926G991表所G12046（G54A149G32100G48VG36）G56A149（KV）2301153G26G44A149（KG36）0251050215G25G59A149（G161）52G2813213G26321计G12651变压器电G6251A154A154A155A156A157A157A155A156A158A159A160A161A162A163A164A165A166A167A168A169A170A171A172A173A17411G56A175A176G8G321/2G62G56A175A177A176A178A179A180G8G14G56A175A177A181A178A176A180G8G16G56A175A177A179A178A181A180G8G64G321/2G6214G1424G16G28G64G32145G56A175A179G8G321/2G62G56A175A177A176A178A179A180G8G14G56A175A177A179A178A181A180G8G16G56A175A177A181A178A176A180G8G64G321/2G6214G14G28G1624G64G32G161G3000G56A175A181G8G321/2G62G56A175A177A181A178A176A180G8G14G56A175A177A179A178A181A180G8G16G56A175A177A176A178A179A180G8G64G321/2G62G28G1424G1614G64G32G285G59A182A176A183G32G11G56A175A176G8/100G12G104G11G54A184/G54A185G12G32145/120G320120G27G59A182A179A183G32G11G56A175A179G8/100G12G104G11G54A184/G54A185G12G320G59A182A181A183G32G11G56A175A181G8/100G12G104G11G54A184/G54A185G12G32G285/120G3200G26G28322系统电G6251（G7693G6466G2419G3999G17176G7021）G17829期G59A186A187A188A176A183G3201334；G59A186A187A188A189A183G3201G2653；G59A186A190A191A176A183G3201245G30G59A186A190A191A189A183G320231G28G30G17840期G59A186A187A188A176A183G320113G28；G59A186A187A188A189A183G32014G27G27；A154A154A155A156A157A157A155A156A158A159A160A161A162A163A164A165A166A167A168A169A170A171A172A173A17412323系统计G12651电路图及等G1552G13605G13488图G3926图3G161G451图3G162和图3G163图32等G1552为A154A154A155A156A157A157A155A156A158A159A160A161A162A163A164A165A166A167A168A169A170A171A172A173A17413图33324短路计G12651G9869的选择选择G3926图3G162G1025的G71A176G451G71A179G451G71A181各G9869。325短路电G8981计G126511G451G71A192G9869短路时G56G83G32230G78G89G8981G13475进线回路的短路电G8981的计G12651G44”A193G32G44A193A194G321/G59A192A193G3210/0113G28G32G27G26G27G8611G1022回路的G989G11468短路电G8981为G44”G32（G44”A193G13G44A195）/4G32（G27G26G27G130251）/4G3211KG36两G11468短路电G8981分别为0G27G25G25G1311G320G285KG36G1926G1999电G8981为G76A196A197G32255G44”G32255G10411G322G2705（KG36）短路容G18339为G54G32G2843G56A195G44”G321G2632G104230G10411G3243G272（G48VG36）G44A196A197G32151G13G44”G32151G10411G321G25G25（KG36）A198A198A199A200A201A201A199A200A202A203A204A205A206A207A208A209A210A211A212A213A214A215A216A217A218142G451G71A219G9869短路时G56G83G32115G78G89G8981G13475主变回路的短路电G8981的计G12651G44”A220G32G44A220A221G321/G59A222A220G3210/G110113G28G1400302G140G12G32G25G284G8611G1022回路的G989G11468短路电G8981为G44”G32（G44”A220G13G44A223）/4G32（G25G284G130502）/4G320G27G26KG36两G11468短路电G8981分别为0G27G25G25G130G27G26G320G2654KG36G1926G1999电G8981为G76A224A225G32255G13G44”G32255G1040G27G26G32221G27（KG36）短路容G18339为G54G32G2843G56A223G13G44”G321G2632G104115G1040G27G26G321G2632G27（G48VG36）G44A224A225G32151G13G44”G32151G1040G27G26G32131（KG36）3G451G71A226G9869短路时G56G83G323G26G78G89G8981G13475主变回路的短路电G8981的计G12651G44”A220G32G44A220A221G321/G59A222A220G3210/G110113G28G1400302G14001G28G265G12G32G25105G8611G1022回路的G989G11468短路电G8981为G44”G32（G44”A220G13G44A223）/4G32（G25105G1315G25）/4G320G2755KG36两G11468短路电G8981分别为0G27G25G25G130G2755G320G264KG36G1926G1999电G8981为G76A224A225G32255G13G44”G32255G1040G2755G3221G27（KG36）短路容G18339为G54G32G2843G56A223G13G44”G321G2632G1043G26G1040G2755G3254G26G28（G48VG36）G44A224A225G32151G13G44”G32151G1040G2755G3212G28（KG36）32G25将所计G12651最大G7053式G991短路电G8981G1552列成G991表A227A228A229A230A231基G1946电压（KV）G44”（KG36）G989G11468G44”（KG36）两G11468G76A224A225（KG36）G44A224A225（KG36）G54（G48VG36）G71A222230110G2852G27051G25G2543G272G71A2321150G27G260G2654221G271311G2632G27G71A2263G260G27550G26421G2712G2854G26G28A233A233A234A235A236A236A234A235A237A238A239A240A241A242A243A244A245A246A247A248A249A250A251A252A25315第四章电气设备的选择41选择设计的一般规定电气设备的选择设计，G2528G7691必G20047G6203G15904G3281G4490的G7389关G6228G7427G13475G8994G6931G12586，并应G1582G2052G6228G7427先进，G13475G8994G2524G10714，G4445全G2499G19764，G17828G15904G7053G1427和适当的G11053G7389G1325G3332，以G9397G17287电力系统G4445全G13475G8994G17828G15904的G19668求。电气设备的选择，应依G6466以G991规定411一G14336G2419G20291G451应G9397G17287正常G17828G15904G451G7828G1474G451短路和过电压情况G991的要求，并考虑G17840G7235发展的G19668要；2G451应G6365当G3332G10627G3671条件G7669G7692；3G451应力求G6228G7427先进和G13475G8994G2524G10714；4G451选择G4560G1319时应尽G18339G1955少G2709种；5G451扩G5326G5049G12255应尽G18339使G7044G13781设备型G2507一G14280；G25G451选G11004的G7044G1147G2709，均应G1867G7389G2499G19764的试G20576数G6466，并G13475正式G18504定G2524G7696。412G7389关的G1972G20045规定电气设备应G6365正常G17828G15904情况选择，G6365短路条件G20576G12651G1866动G451G9921G12295定，并G6365G10627G3671条件G7669G7692设备的基本使G11004条件。1G451正常G17828G15904条件G991，各回路的G6357G13505G5049作电G8981应G6365规定G1856式计G12651；2G451G20576G12651电气设备时，所G11004短路电G8981的G1552一定要是G3324规定的条件G991求G5483；3G451G20576G12651G4560G1319短路G9921G12295定时，所G11004的时间一G14336G18331G11004主保护的动作时间G2164G11468应的断路器全分G19404时间，G2528时要考虑G2052主保护的G8527G2318；电气设备的短路电G8981计G12651时间，一G14336G18331G11004后备保护的动作时间G2164G11468应的断路器全分G19404时间；4G451G10627G3671条件选择G4560G1319和电器时，应G6365当G3332G10627G3671条件G7669G7692。当气G9213G451G20130G17907G451A254A254A255A2A0A0A255A2A1A3A4A5A10A6A7A8A9A11A12A13A14A15A16A17A1816G9299度G451G8757G12241G451G9035G6312G451G3332G19675G451G16218G1924等G10627G3671条件G17241出一G14336电器的规定时，应G17902过G6228G7427G13475G8994G8616G17751后分别G18331G2474G991列G6526G70571）向G2058造部G19388提出G15929G1817要求，G16758G2058G12538G2524当G3332G10627G3671的G1147G2709；2）G3324设计或G17828G15904G1025G18331G2474G11468应的G19462护G6526G7057G3926G18331G11004G4639内配电装置，G2164G1955G19675器等。42电气设备的选择与校验421主变压器G6357G13505G5049作电G8981的计G12651G29220KVG20652压侧G44A24A19A20A21G32105G44A25G32105G54A25/G2843G56A25G32105G104120000/1G2632G104220G32330G25G26（G36）110KVG1025压侧G44A24A19A20A21G32105G44A25G32105G54A25/G2843G56A25G32105G104120000/1G2632G104110G32G25G25135（G36）35KVG1314压侧G44A24A19A20A21G32105G44A25G32105G54A25/G2843G56A25G32105G104120000/1G2632G10435G3220G26G2752（G36）422断路器及隔离开关的选择1G451220KV断路器及隔离开关的选择G20081定参数及短路电G8981计G12651数G6466断路器隔离开关G54G58G25G16220/1200G42G584G16220G39/1000G56A25G32220（KV）220220A22A22A23A26A27A27A23A26A28A29A30A31A32A33A34A35A36A37A38A39A40A41A42A43A4417G44A45A46A47A48G32330G25G26（G36）12001000G44”G3211（KG36）2123G26G76A49A50G322G2705（KG36）55G270G44A49A50G321G25G25（KG36）21G54G3243G272（G48VG36）G25000断路器G7669G20576动G12295定G29G76A49A50G322G2705（KG36）G76A51A52A53G3255（KG36）G76A51A52A53G33G76A49A50故G2524G7696G9921G12295定G29“G321G87A54A55G320G275G87G321G54G44A56A57G87A54A58G3211G1311G130G275G44A55A57A59G87G3255G1355G131所以G44A56A57G87A54A58G44A55A57A59G87所选型G2507G12538G2524要求隔离开关G7669G20576G29动G12295定G76A49A50G322G2705（KG36）G76A51A52A53G32G270（KG36）G76A51A52A53G33G76A49A50故G2524G7696G9921G12295定G44A56A57G87A54A58G44A55A57A59G87所选型G2507G12538G2524要求2G451主变110KV及35KV侧断路器及隔离开关的选择A60A60A61A62A63A63A61A62A64A65A66A67A68A69A70A71A72A73A74A75A76A77A78A79A8018110KV侧G20081定参数及短路电G8981计G12651数G6466断路器隔离开关G54G584G16110/1000G42G584G16110G39/1000G56A81G32110（KV）110110G44A82A83A84A85G32G25G25135（G36）10001000G44”G320G27G26（KG36）1G27423G26G76A86A87G32221G27（KG36）55G270G44A86A87G32131（KG36）21（5G86）G54G321G2632G27（G48VG36）3500断路器G7669G20576G29动G12295定G29G76A86A87G32221G27（KG36）G76A88A89A90G3255（KG36）G76A88A89A90G33G76A86A87故G2524G7696G9921G12295定G29“G321G87A91A92G320G275G87G321G54G44A93A94G87A91A95G320G27G26G130G27G26G130G275G44A92A94A96G87G3255G1355G131所以G44A93A94G87A91A95G44A92A94A96G87所选型G2507G12538G2524要求隔离开关G7669G20576G29动G12295定G76A88A89A90G33G76A86A87G9921G12295定G44A93A94G87A91A95G44A92A94A96G87所选型G2507G12538G2524要求35KV侧G29G20081定参数及短路电G8981计G12651数G6466断路器隔离开关G43G37G1635/3150G42G584G1635G39/4000A97A97A98A99A100A100A98A99A101A102A103A104A105A106A107A108A109A110A111A112A113A114A115A116A11719G56A118G3235（KV）3535G44A119A120A121A122G3220G26G2752（G36）31504000G44”G320G2755（KG36）4040G76A123A124G3221G27（KG36）100104G44A123A124G3212G28（KG36）40G115G54G12G54G3254G26G28（G48VG36）2425断路器G7669G20576动G12295定G29G76A123A124G3221G27（KG36）G76A125A126A127G32100（KG36）G76A125A126A127G33G76A123A124故G2524G7696G9921G12295定G29“G321G87A128A129G320G275G87G321G54G44A130A131G87A128A132G320G2755G130G2755G130G275G44A129A131A133G87G32100G13100G131所以G44A130A131G87A128A132G44A129A131A133G87所选型G2507G12538G2524要求隔离开关G7669G20576G29动G12295定G76A125A126A127G33G76A123A124G9921G12295定G44A130A131G87A128A132G44A129A131A133G87所选型G2507G12538G2524要求3G45135KV出线G451旁路及所变断路器及隔离开关的选择35KV出线G451旁路及所变断路器选择G54G582G1635型，主要参数G3926G991型G2507G54G582G1635G20081定电压35KV最大电压405KVG20081定电G89811500G36G20081定开断电G898124G27KG36断开容G183391500G48VG36G9921G12295定电G898124G27KG36（4G54）极G19492G17902过电G8981G2534KG36A134A134A135A136A137A137A135A136A138A139A140A141A142A143A144A145A146A147A148A149A150A151A152A153A1542035KV出线G451旁路及所变隔离开关选择G42G584G1635G39，主要参数G3926G991型G2507G42G584G1635G39G20081定电压35KVG20081定电G89811000G36G9921G12295定电G898123G26KG36（4G54）动G12295定电G8981G270KG36断路器型式的选择，除G19668G9397G17287各G20045G6228G7427条件和G10627G3671条件G3818，还应考虑G1427于G4445装G16855试和G17828G15904G13512护，并G13475G6228G7427G13475G8994G8616G17751G6177能确定，G7693G6466当前G6117G3281G10995G1147G2058造情况，3220KV电G13605一G14336G18331G11004少G8845断路器。35KVG3252要求容G18339大，G18331G11004G1857G8691G2282G11839断路器。隔离开关型式的选择，应G7693G6466配电装置的布置G10317G9869和使G11004等G3252G13044，进G15904G13520G2524的G6228G7427G13475G8994G8616G17751后确定。本G7053G7708对35KV侧G18331G11004G4639内式，对110KVG451220KVG18331G11004G4639G3818式。220KV进线G451主变G451母联断路器及隔离开关G18331G11004G11468G2528型G2507。110KV主变G451母联G451出线断路器及隔离开关G18331G11004G11468G25