IC697CPU788传感器

IC697CPU788传感器

在电力行业中RTU[1]、DTU[2]、FTU[3]、TTU[4]等设备是配网自动化系统中的开关监控装置，适用于城市、农村、企业配电网的自动化工程，完成环网柜、柱上开关的监视和保护以及通信等自动化功能，配合配电子站、主站实现配电线路的正常监控和故障识别、隔离和非故障区段恢复供电，在电力行业有着广泛的应用。这些设备的内部设计上非常相似，其对电源的要求更是如此，下面以DTU为例介绍其供电电源解决方案。


DTU一般安装在常规的开闭所（站）、户外小型开闭所、环网柜、小型变电站、箱式变电站等处，完成对开关设备的位置信号、电压、电流、有功功率、无功功率、功率因数、电能量等数据的采集与计算，对开关进行分合闸操作，实现对馈线开关的故障识别、隔离和对非故障区间的恢复供电。部分DTU还具备保护和备用电源自动投入的功能。


DTU系统的工作原理


配电终端DTU的功能可以通过软件组态配置实现灵活组合，DTU功能模块实时监测压线路电压、线路电流、零序电流、设备状态等运行及故障信息，完成遥信、遥测、遥控功能，实现配网自动化的实时监控；保护功能实现线路故障就地检测、切除功能；通信管理模块具备多种方式的通信接口和多种标准通信规约，除具备终端内部数据管理功能，对外还可转发配电室或开闭站内电能表、PLC及直流屏数据，通过一个标准统一接口与主站系统通信完成数据传输等功能。配电终端采用集散式设计模式，强大的软、硬件组态配置功能既满足了DTU实时性要求，也实现了数据存储记录功能，同时又可实现线路微机保护独立配置功能，成功解决了测控、保护、通讯兼容共存问题，达到了简化站点设备种类的目的。


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