1747-L532 询购就亿佳
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。
UNIT Instruments Mass Flow Controller UFC-1100A
GE FANUC SERIES 90-30 PROGRAMMABLE CONTROLLER, GE PLC
vacuum chamber Flange, Cryo Turbo, Gate valve interface
vacuum chamber interface Flange, look very clean
Jennings UCS-200-15S and CVCJ-1000-3S, looks very clean
SHB INSTRUMENTS MODLE 109 SCOPE
IC Sensors lot's of 2
Aera FC-7800CD 24YSSCM He Pressure Controller
SHB INSTRUMENTS MODLE 109 SCOPE
AMAT -MXL-0.25-KEV?LAR-B-U
SWAGELOK PFA4-8-FTFX-9S-?3
MKS Pressure Controller 122BA-00100EB
Kit, IL/NIT/BWCVD, Throttle, Valve
Sensor, Hall-Effect , SO# 528397, Lot of 3
AMAT RING, MIRRA
Millipore FC-2952MEP5-T, O2 GAS, 600 SCCM Range
Varian EVacuum Switch Assembly, Source Safety
2 New AMAT 53-Bearing Center Support, Graphite
MKS BARATRON PRESSURE TRANSDUCER 852B61PCJ2GC 60 PSIA
Enlarge
AMAT Slit Valve Door
4 New BOC C NW50 KF 50 Clamp AMAT
SP15VF-6 ALLING-LANDER WORM GEAR SPEED REDUCER RATIO 30
2 set AMAT Foreline KF 50 Clamp, SEAL, Blank Off NW50
AMAT CLAMP Flange
SWAGELOK SS-QC8-D1-810
SWAGELOK SS-QC8-D-8PF
SWAGELOK SS-QC8-D-8PM
SWAGELOK SS-
AMAT
SWAGELOK SS-QC4-S-400
SWAGELOK SS-QC8-B-8PB
SWAGELOK SS-, Quick Disconnect, AMAT
PARKER 4HB-Q6VY-SS
Parker 8A-, Quick Disconnect, AMAT
Littelfuse LF Pico Fuse 4A, lot of 10
Lot of 2, Vexta 2 Phase Driver UD2115A
2-Phase Driver UD2115A 25703 UR2, Used
MKS Throttle Valve 253B-13646
SVG90 Electronic Cabinet spare parts
SANYO BL SUPER PV SERVO AMPLIFIER PVQA0155FYNP50
IRVINE OPTICAL CORPORATION 136PC1562
CT AURAVISION 94V-0 E92481
EDWARDS ACTIVE GAUGE ConTROLLER D38650000
MKS i-BARATARON DIGITAL MANOMETER DMA12TCECJNN633
BROOKS Mass Flow Controller 5850 EM series, N2 100 SCCM
APPLIED ENERGIES 750V 3
EFD 1500XL LIQUID DISPENSER and Foot Paddle controller
Trazar Corp. RF Match RFDS-1, REV 3, P/N
Tylan General CMLA-21 Pressure Sensor 0-100 TORR
Tylan General CMS-11S02, 0-10 TORR, lots of 2
ENI OEM-12B-07 RF Generator, 1200W at 13.56 MHz
Tylan General CMLA-11S02 10 Torr Manometer
Tylan General CMLB-21M 100 TORR CAPACITANCE GAUGE
Tylan General CMLA-21S06 0-100 TORR
Tylan General CMLA-21 100 TORR CAPACITANCE GAUGE
Tylan General CMLA-11S17 0-10 TORR Lam research
Speed Control Pack SSP-1
Lot of 10 MFC, UNIT UFC-1660, N2, He, Unit MFC
SHINKO TECHNOS Automatic temperature controller DIC-PO
SMC NCD Pneumatic Cylinder AMAT
SMC NP420-DN1 Manifold SERIAL INTERFACE
IN USA Ozone analyzer IN2000-L2RM, Used
Tylan MFC FC-280, PC-580, N2O,N2,NH3,HE lots of 4
TEKTRonIX 34 channel LeadSet, for P6960
BOC EDWARDS Active gauge controller, 2 APG-L-NW16, more
ZYMARK MODULE EIA 112200
Advanced energy D, ASM LDM PLASMA Generator
MKS 152E-PO Pressure controller
TYLAN 2979M Mass Flow Controller FC-2979MEP5-WM, Gas O2
Lot of 10 MFC, UNIT UFC-1660, N2, Cl2, O2 Unit MFC
New VISHEY PE 100 15kVo 200pF
Sorensen power supply, DCS80-13E, 0-80 V, 0-13 A, used
Lot of 6 MFC, UNIT UFC-1660, N2, Cl2, He Unit MFC
Lot of 6 MFC, UNIT UFC-1660, O2, Cl2, Unit MFC
MKS baratron 128AA 1000TORR, used
AMAT CB MAG THERM
13 New AMAT Bolt-on Circuit breaker 10A
VESTA STEPPING MOTOR, PH268-23, 2- phase 1.8/ step
NEW CABLE ASSY, FILTER BD TO SUPP P/S
USED Bettcher Process Services PROCESS TIMER MODEL 985T
USED, Bettcher Process Services EPO MODEL 985E
Gas line, Dual Helium, Ultima HDPCVD