系統特點天津鐵道職業技術學院鐵路信號基礎設備維護ZPW-2000A?T型軌道電路與ZPW-2000A?J型軌道電路的區別1.ZPW-2000A?T軌道電路接收器載頻選擇可通過列控中心進行集中配置，發送器采用無接點的計算機編碼方式，取代了既有ZPW-2000A?J軌道電路系統的繼電編碼方式，取消了大量的編碼繼電器。2.發送器由既有的N+1提高為1+1的備用模式，最大限度地降低了因設備故障而影響行車。3.將既有ZPW-2000A軌道電路的調諧單元和匹配單元整合為一個調諧匹配單元，減少了系統的設備數量，提高了系統的可靠性。4.優化了補償電容的配置，不同的信號載頻采用不同的補償間距；補償電容采用了全密封工藝，提高了其電容值穩定性和延長了使用壽命。系統特點DifferencesbetweenZPW-2000A-TtrackcircuitandZPW-2000A-Jtrackcircuit1.CarrierfrequencyselectionofZPW-2000A-Ttrackcircuitreceivercanbecentrallyconfiguredthroughthetraincontrolcenter,andthetransmitteradoptsthecontactlesscomputercodingmethod,replacingtherelaycodingmethodoftheexistingZPW-2000A-Jtrackcircuitsystemandeliminatingalargenumberofcodingrelays.2.ThestandbymodeoftransmitterisimprovedfromtheexistingN+1to1+1,whichminimizestheimpactontrafficduetoequipmentfailure.Systemfeatures3.IntegratethetuningunitandmatchingunitoftheexistingZPW-2000Atrackcircuitintoatuningandmatchingunitanditreducesthenumberofequipmentandimprovesthereliabilityofthesystem.4.Optimizetheconfigurationofcompensationcapacitors.Differentcompensationspacingisadoptedfordifferentsignalcarrierfrequencies.Thecompensationcapacitorsadoptafullysealedprocesstoimprovethestabilityoftheircapacitanceandextendtheirservicelife.Systemfeatures5.加大了空芯線圈的導線線徑，從而提高了關鍵設備的安全容量要求。6.ZPW-2000A?T軌道電路系統帶有監測和故障診斷功能，為系統的狀態修提供了技術支持。7.站內采用與區間同制式的ZPW-2000A?T軌道電路，提高了系統的可靠性。8.ZPW-2000A?T站內道岔區段的彎股采用與直股并聯的一送一受軌道電路結構，使道岔分支長度由小于等于30m延長到160m，提高了機車信號車載設備在站內使用的安全性、靈活性，方便了設計。9.ZPW-2000A?T小軌道納入列控中心實施軌道區段檢查，列控中心對區間正反向運行均進行小軌道檢查，列控中心同時向CTC，CBI，CSM，TSRS發送區間軌道狀態信息，同時TCC維護終端實施顯示軌道區段狀態信息。系統特點5.Thewirediameterofthehollowcorecoilisincreased,thusimprovingthesafetycapacityrequirementsofcriticalequipment.6.ZPW-2000A-Ttrackcircuitsystemisequippedwithmonitoringandfaultdiagnosisfunction,whichprovidestechnicalsupportfortheconditionrepairofthesystem.7.ThestationadoptsthesameZPW-2000A-Ttrackcircuitasthesection,whichimprovesthereliabilityofthesystem.8.ThecurvedlineofZPW-2000A-Tstationturnoutsectionadoptsthetrackcircuitwiththestructureofonesendingandonereceivingendwhichisinparallelwiththestraightline.Inthiscondition,thebranchlengthoftheturnoutisextendedfromlessthanorequalto30mto160m.Itimprovesthesafetyandflexibilityofthelocomotivesignalon-boardequipmentusedinthestationandfacilitatesthedesign.Systemfeaturesrequirementsofcriticalequipment.9.ZPW-2000A?Tsmalltrackisincorporatedintothetraincontrolcentertoimplementtracksectioninspection.Thetraincontrolcentercarriesoutsmalltrackinspectionforbothnormalandreverseoperationofthesection,andthetraincontrolcentersendssectiontrackstatusinformationtoC