IC697CSE784RR煙氣濕度儀

在電力行業(yè)中RTU[1]、DTU[2]、FTU[3]、TTU[4]等設(shè)備是配網(wǎng)自動(dòng)化系統(tǒng)中的開關(guān)監(jiān)控裝置，適用于城市、農(nóng)村、企業(yè)配電網(wǎng)的自動(dòng)化工程，完成環(huán)網(wǎng)柜、柱上開關(guān)的監(jiān)視和保護(hù)以及通信等自動(dòng)化功能，配合配電子站、主站實(shí)現(xiàn)配電線路的正常監(jiān)控和故障識(shí)別、隔離和非故障區(qū)段恢復(fù)供電，在電力行業(yè)有著廣泛的應(yīng)用。這些設(shè)備的內(nèi)部設(shè)計(jì)上非常相似，其對(duì)電源的要求更是如此，下面以DTU為例介紹其供電電源解決方案。


DTU一般安裝在常規(guī)的開閉所（站）、戶外小型開閉所、環(huán)網(wǎng)柜、小型變電站、箱式變電站等處，完成對(duì)開關(guān)設(shè)備的位置信號(hào)、電壓、電流、有功功率、無(wú)功功率、功率因數(shù)、電能量等數(shù)據(jù)的采集與計(jì)算，對(duì)開關(guān)進(jìn)行分合閘操作，實(shí)現(xiàn)對(duì)饋線開關(guān)的故障識(shí)別、隔離和對(duì)非故障區(qū)間的恢復(fù)供電。部分DTU還具備保護(hù)和備用電源自動(dòng)投入的功能。


DTU系統(tǒng)的工作原理


配電終端DTU的功能可以通過軟件組態(tài)配置實(shí)現(xiàn)靈活組合，DTU功能模塊實(shí)時(shí)監(jiān)測(cè)壓線路電壓、線路電流、零序電流、設(shè)備狀態(tài)等運(yùn)行及故障信息，完成遙信、遙測(cè)、遙控功能，實(shí)現(xiàn)配網(wǎng)自動(dòng)化的實(shí)時(shí)監(jiān)控；保護(hù)功能實(shí)現(xiàn)線路故障就地檢測(cè)、切除功能；通信管理模塊具備多種方式的通信接口和多種標(biāo)準(zhǔn)通信規(guī)約，除具備終端內(nèi)部數(shù)據(jù)管理功能，對(duì)外還可轉(zhuǎn)發(fā)配電室或開閉站內(nèi)電能表、PLC及直流屏數(shù)據(jù)，通過一個(gè)標(biāo)準(zhǔn)統(tǒng)一接口與主站系統(tǒng)通信完成數(shù)據(jù)傳輸?shù)裙δ堋Ｅ潆娊K端采用集散式設(shè)計(jì)模式，強(qiáng)大的軟、硬件組態(tài)配置功能既滿足了DTU實(shí)時(shí)性要求，也實(shí)現(xiàn)了數(shù)據(jù)存儲(chǔ)記錄功能，同時(shí)又可實(shí)現(xiàn)線路微機(jī)保護(hù)獨(dú)立配置功能，成功解決了測(cè)控、保護(hù)、通訊兼容共存問題，達(dá)到了簡(jiǎn)化站點(diǎn)設(shè)備種類的目的。


1 NIB TOPWORX 7C-43752-F2 73752F2 POSITION SWITCH
1 NIB TOPWORX 7C-43752-F2 73752F2 PROXIMITY SWITCH
11-12110-00 GO LEVERLESS PROXIMITY LIMIT SWITCH TOPWORX
11-12124-A2 TOPWORX GO-SWITCH
158760             -No Box, Topworx 11-12210-00 Leverless Limit Switch, 10A, 120VAC
158762             -No Box, Topworx 11-12310-00 Leverless Limit Switch, 10A, 120VAC
2 - TOPWORX PROXIMITY SWITCH 7FD543752-F3 –              
21-11326-A1 limit switch topworx
Apollo 3/4" Actuated Ball Valve w/ Topworx DXP-L21 Positioner             
ASCO HV2745411 SOLENOID CF8M VALVE WATTS: 1.4, PIPE 1/2 WITH TOPWORX SWITCH
EL-O-Matic Actuator ES0065.U1A04A.14K w/ Topworx Valvetop Monitor & ASCO switch
Elomatic QS0065 Spring Action Valve Actuator, Topworx, Valvetop pneumatic, Field
Emerson TopWorx TVA-M2WBNCM, Valve Position Indicator,              in Box
Fanuc EE-3185-356-001 Proximity Sensor Switch Topworx 76-13528-A3 leverless limi
Fisher Controls 2052 Size 1 Actuator With Topworx Position Indicator
GO SWITCH (TOPWORX) Stroke-to-Go S/N: 090216A M/N: 7FV853658DCA PROBE 5.000"
GO SWITCH MODEL 81 LIMIT SWITCH 81-20527-A2 TopWorx -             
Go Switch Topworx 74-13527-F2 Proximity Sensor 70 Ser
Go Switch Topworx 76-13527-DBD             
Go Switch Topworx 7G-23523-A2 Proximity Switch
GO Topworx 21-11110-00 Leverless Limit Switch NIB
GO Topworx Leverless Limit Switch 11-12523-A15
GO Topworx Leverless Limit Switch 11-12523-A15
Habonim 1/2" Ball Valve + Actuator + Topworx Valvetop assembly
Hytork 425 Actuator Valve TopWorx Lumitech & SVF Multi Port Sanitary Ball Valve
KTM Hytork Topworx 1.5" Ball Valve w/ Actuator Positioner             
KTM Tyco Topworx Hytork 1" Actuated Ball Valve E0162 DXP Positioner             
LEVERLESS LIMIT SWITCH, 11-11110-00, 98793642, GO SWITCH - TOPWORX
LOT OF (2) TOPWORX GO SWITCH 70 SERIES PROXIMITY SENSORS
LOT OF (2) TOPWORX GO SWITCH LEVERLESS LIMIT SWITCH 73-13524-A2
LOT OF 2 TOPWORX GO LEVERLESS LIMIT SWITCHES # 11-51227-DCG -              IN BOX
             ! TOPWORX MODEL 75-13526-B1
             EMERSON GO TOPWORX LEVERLESS LIMIT SWITCH 100219A 11-11120-00
             EMERSON TOPWORX SWITCHPAK SSP-XPM2GR APPLICABLE TO TYPE 1080 MANUAL ACTUATOR
             Emerson Topworx TVA-M2WBNCM Valve Position Indicator Lg Qty Available
             GO SWITCH 77-13522-F3 TOPWORX LIMIT SWITCH 7713522F3
             GO Switch Proximity Switch Topworx 11-11410--00
             GO SWITCH TOPWORX 35-13318-A2 LEVERLESS LIMIT SWITCH
             GO TOPWORX SENSOR LIMIT SWITCH 21-115181431
             IN BOX TOPWORX GO LEVERLESS LIMIT SWITCH SS 3000 PSI PROBE 2.062 7E-43758F4
             IN BOX TOPWORX GO SWITCH 77-13522-F3 LIMIT SWITCH 7713522F3 FREE SHIPPING
             listing              IN BOX GENUINE TOPWORX GO SWITCH 81-10528-dca 10A 120 VAC 3A at 24V DC NIB
             listing TOPWORX 74-13528-DBA
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             listing TOPWORX LPS 4-XWR3 *             IN BOX*
             NO BOX - TOPWORX SENSOR 75-14538-DCA_7514538DCA
             REMOTE CONTROL 3" CAST IRON ACTUATED BALL VALVE RCI445SR TOPWORX SWITCHPAK
             Surplus Topworx 7313526b2 4A @ 120VAC 3A @ 24 VDC Class 1 Division 2
             Surplus Topworx Valvetop DXP-M21YSEB Valve Position Monitor Explosion Proof
             TOPWORX 11-11122-F2 LIMIT SWITCH 1111122F2
             TOPWORX 11-12128-DCD LIMIT SWITCH 1112128DCD
             TOPWORX 11-12518-A3 GO LEVERLESS LIMIT SWITCH 120V-AC 10A AMP D519145
             Topworx 11-12536-A3 Model 11 GO SWITCH Leverless Limit Switch
             Topworx 11-12536-A3 Model 11 GO SWITCH Proximity Leverless Limit switch
             TOPWORX 12-12110-00 LIMIT SWITCH 121211000
             TOPWORX 21-11124-A2 LIMIT SWITCH 2111124A2
             TOPWORX 21-11126-A2 LIMIT SWITCH 2111126A2
             TOPWORX 21-11127-DCD LIMIT SWITCH 2111127DCD
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             Topworx 42832-2 Go Switch AURA Light Adaptor SPST ALA1R40-3585 Free Ship
             TOPWORX 73-13528-B20 PROXIMITY SENSOR
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