IC697CMM798RR调速电机
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