Densebusduct,highstrengthenclosedbusduct(CFW)

    該工藝不受板材的限制，外殼做成華夫餅狀，提高了母線的機械強度，母線的水平截面可達13m，由于外殼的盤繞，凹槽的位置被有意分開固定，母線之間的距離為18mm。線路間通風良好，明顯提高了母線槽的防潮散熱功能，更適合華南地區(qū)的氣候；線路間有一定的空隙，會引起導線溫度的升降，從而提高了過載能力，降低了磁振蕩噪聲。但其雜散電流和電感電抗遠大于密集型母線，因此其導電桿截面必須大于密集型絕緣插入式母線截面。

 Theprocessisnotlimitedbytheplate,andtheshellismadeintowaffleshape,whichimprovesthemechanicalstrengthofthebus.Thehorizontalsectionofthebuscanreach13m.Duetothewindingoftheshell,thepositionofthegrooveisdeliberatelyseparatedandfixed,andthedistancebetweenthebusesis18mm.Thegoodventilationbetweenthelinesobviouslyimprovesthemoisture-proofandheatdissipationfunctionofthebusduct,whichismoresuitablefortheclimateofSouthChina;thereisacertaingapbetweenthelines,whichwillcausetheriseandfalloftheconductortemperature,thusimprovingtheoverloadcapacityandreducingthemagneticoscillationnoise.Butitsstraycurrentandinductancereactancearemuchlargerthanthatofthedensetypebus,sothesectionofitsconductingrodmustbelargerthanthatofthedensetypeinsulationplug-inbus.

    空氣塞母線槽（BMC）

    Airplugbusduct(BMC)

    由于總線之間的連接器和銅的軟結合，南方地區(qū)的天氣潮濕，連接器容易氧化，這使得連接器和總線之間的接觸不良，并使接觸點易于加熱，因此在南方地區(qū)很少使用。節(jié)點間體積過大，水平母線截面尺寸不一致，外形不美觀。

    Duetothesoftcombinationofconnectorsandcopperbetweenbuses,theweatherinsouthernChinaishumidandtheconnectorsareeasytooxidize,whichmakesthepoorcontactbetweenconnectorsandbusesandmakesthecontactpointseasytoheat,soitisrarelyusedinsouthernChina.Thevolumebetweennodesistoolarge,thecrosssectionsizeofhorizontalbusisinconsistent,andtheappearanceisnotbeautiful.

    密集絕緣插入式母線槽（CMC）

    Denseinsulatedplug-inbusduct(CMC)

    其含水量和散熱效果較差。在防潮方面，母線在施工過程中容易受到潮濕和水的影響，導致相間絕緣電阻降低。客車的散熱主要取決于外殼。由于導線排列緊湊，L2和L3相的熱能分布緩慢，母線槽溫升很高。密集絕緣插入式母線只能產生不超過3m的水平段，受外板限制。由于母線間氣隙小，當母線通過大電流時，會產生強大的電力，導致磁振蕩頻率疊加，產生過大的噪聲。插入式母線槽是一種干線系統(tǒng)，具有體積小、結構緊湊、運行可靠、傳輸電流大、分接饋電方便、維護方便、能耗低、動態(tài)熱穩(wěn)定性好等優(yōu)點

 Itswatercontentandheatdissipationeffectarepoor.Intheaspectofdampproof,thebusiseasytobeaffectedbydampnessandwaterintheconstructionprocess,whichleadstothedecreaseofinsulationresistancebetweenphases.Theheatdissipationofthebusmainlydependsontheshell.Duetothecompactarrangementofconductors,thethermalenergydistributionofL2andL3phasesisslow,andthetemperatureriseofbusductisveryhigh.Theplug-inbuswithdenseinsulationcanonlyproduceahorizontalsectionofnomorethan3m,whichislimitedbytheouterplate.Duetothesmallairgapbetweenbuses,whenbusespassthroughlargecurrent,strongpowerwillbegenerated,resultinginthesuperpositionofmagneticoscillationfrequencyandexcessivenoise.Theplug-inbusductisakindoftrunksystem,whichhastheadvantagesofsmallvolume,compactstructure,reliableoperation,largetransmissioncurrent,convenienttapandfeed,convenientmaintenance,lowenergyconsumption,gooddynamicthermalstability,etc

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