IC697CSE784RR煙氣濕度儀

在電力行業(yè)中RTU[1]、DTU[2]、FTU[3]、TTU[4]等設備是配網自動化系統(tǒng)中的開關監(jiān)控裝置，適用于城市、農村、企業(yè)配電網的自動化工程，完成環(huán)網柜、柱上開關的監(jiān)視和保護以及通信等自動化功能，配合配電子站、主站實現(xiàn)配電線路的正常監(jiān)控和故障識別、隔離和非故障區(qū)段恢復供電，在電力行業(yè)有著廣泛的應用。這些設備的內部設計上非常相似，其對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)網柜、小型變電站、箱式變電站等處，完成對開關設備的位置信號、電壓、電流、有功功率、無功功率、功率因數(shù)、電能量等數(shù)據的采集與計算，對開關進行分合閘操作，實現(xiàn)對饋線開關的故障識別、隔離和對非故障區(qū)間的恢復供電。部分DTU還具備保護和備用電源自動投入的功能。


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)配置實現(xiàn)靈活組合，DTU功能模塊實時監(jiān)測壓線路電壓、線路電流、零序電流、設備狀態(tài)等運行及故障信息，完成遙信、遙測、遙控功能，實現(xiàn)配網自動化的實時監(jiān)控；保護功能實現(xiàn)線路故障就地檢測、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準通信規(guī)約，除具備終端內部數(shù)據管理功能，對外還可轉發(fā)配電室或開閉站內電能表、PLC及直流屏數(shù)據，通過一個標準統(tǒng)一接口與主站系統(tǒng)通信完成數(shù)據傳輸?shù)裙δ?。配電終端采用集散式設計模式，強大的軟、硬件組態(tài)配置功能既滿足了DTU實時性要求，也實現(xiàn)了數(shù)據存儲記錄功能，同時又可實現(xiàn)線路微機保護獨立配置功能，成功解決了測控、保護、通訊兼容共存問題，達到了簡化站點設備種類的目的。


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
             listing Topworx Go-Switch 81-10526-A2
             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
             TOPWORX 21-11248-DCD LIMIT SWITCH 2111248DCD
             TOPWORX 21-11348-DCD LIMIT SWITCH 2111348DCD
             TOPWORX 31-17526-A2 PROXIMITY SWITCH 3117526A2
             Topworx 42832-1 Go Switch Leverless Limit Switch 11-12517DCD3585
             Topworx 42832-2 Go Switch AURA Light Adaptor SPST ALA1R40-3585 Free Ship
             TOPWORX 73-13528-B20 PROXIMITY SENSOR
             Topworx 73-13528-B3 Inductive Magnet Sensor Ferrous Metal Sensing
             Topworx 74-13228-F3 GO Switch Model 74 Precision Sensing Limit Switch
             TOPWORX 77-13526-A2 SPDT,CSA/FM C1D2,36"LEADS 7713526A2
             TOPWORX 7A-73221-99 GO SWITCH PNEUMATIC VALVE 7A7322199
             TopWorx 7C-437513283 Proximity Switch / GO Limit Switch - 1.025" Probe F
             TOPWORX 7G-23527-DCH SWITCH 7G23527DCH
             TOPWORX CAM SHAFT MODEL -SNB204
             topworx dxp-t21gneb valve position monitor expolsion proof flameproof
             topworx dxp-t21gneb valvetop