ZPW-2000A軌道電路天津鐵道職業技術學院鐵路信號基礎設備維護課程ZPW-2000AtrackcircuitTianjinRailwayvocationalandtechnicalcollegeMaintenanceofbasicrailwaysignalequipment發送器2.作用3.工作原理4.外線連接5.冗余結構6.電平調整1.型號transmitter2.function3.Workingfundamental4.connection5.redundancy6.Leveladjustment1.type

發送器為帶NS1底座的6M插座型盒體，內部由數字板、功放板兩塊電路板構成，外部裝有黑色網罩及鎖閉桿。發送器型號ZPW.F，外形尺寸：220mm×100mm×383mm。1.發送器型號

Thetransmitteradopts6MsocketboxbodywithNS1socket,andtheinterioriscomposedoftwocircuitboards,digitalboardandpoweramplifierboard.Theoutsideisequippedwiththeblacknetcoverandthelockingrod.Model:ZPW·F,Shape:

220mm×100mm×383mm1.Model

1.用來產生高精度、高穩定性的移頻信號。有18種低頻,8種載頻頻率。2.產生足夠功率的輸出信號,額定輸出功率70W(400歐負載),最大輸出功率105W。3.調整軌道電路,可根據軌道電路的具體情況,通過輸出端子的不同連接,獲得10種不同的發送電平。4.對移頻信號進行自檢測

,故障時給出報警及n十1冗余運用的轉換條件。2.發送器作用

1.thetransmitteristogenerateahigh-precision,high-stabilityfrequencyshiftsignalformedby18low-frequencysignalsand8carrierfrequency(up-lineanddown-line)information;2.togenerateanoutputsignalofsufficientpower,ratedoutputpoweris70W,themaximumis105W.3.toadjustthetrackcircuit;toself-detectthecharacteristicsofthefrequencyshiftsignal;4.toalarmautomaticallyincaseoffailureandtogivetheconversionconditionsofthe"N+1"redundantstructuresothatthestandbytransmittercanbeputintooperationautomatically.2.function載頻編碼條件低頻編碼條件CPU1CPU2移頻發生器控制與門濾波功放頻率檢測頻率檢測控制輸出控制輸出功出檢測功出檢測安全與門FBJFBJ至軌道至n+1發送24V3.發送器工作原理3.

Workingfundamental4.外線連接發送報警電源低頻編碼端子電平調整端子發送功出載頻編碼端子4.connection

alarmrelayrerminalspowersupply

terminalslowfrequencycodedterminals,leveladjustmentterminalstransmissionpoweroutput

terminalscarrierfrequencycodingterminals發送器采用“N+1”冗余方式，“+1”發送器為熱機備用發送器。當任意一臺主用發送器故障時，發送報警繼電器（FBJ）落下，由FBJ接點轉換至＋1FS，實現系統冗余。

正常時：FBJ↑，主用發送器工作

故障時：FBJ↓，自動轉“＋1”發送器工作5.冗余結構Thetransmitteradopts"N+1"redundancyand"+1"ishotstandby.Whenanymain

transmitterfails,the

transmitting

alarmrelay(FBJ)isde-energized,

through

FBJcontactsswitchto+1FS,toachieve

systemredundancy.

Normally:

FBJ↑,themain

transmitterworksWhenfailed:FBJ↓,switch

to"+1"transmitterautomatically5.Redundancy正常時：FBJ↑，主用發送器工作

故障時：FBJ↓，自動轉“＋1”發送器工作5.冗余結構主發送器備發送器FBJ

Normally:

FBJ↑,themain

transmitterworksWhenfailed:FBJ↓,switch

to"+1"transmitterautomatically5.Redundancymain

transmitterStandbytransmitterFBJ發送電平輸出端子連接電壓(S1、S2)V1211191292146～154393126～137494103～11259573～8064160～6775354～6084244～4893137～41105433～366.電平調整levelconnectionVoltage(S1、S2)V1211191292146～154393126～137494103～11259573～8064160～6775354～6084244～4893137～41105433～366.Leveladjustment

小結作用工作原理外線連接電平調整思考題：

如果某軌道電路所需電平為5級，該如何調