| 1756-OV16E |
| 1756-OV16E |
| 1756-OV16E |
光纖通道與繼電保護(hù)配合的幾種方式
目前，縱聯(lián)保護(hù)采用光纖通道的方式，得到了越來(lái)越廣泛的應(yīng)用，在現(xiàn)場(chǎng)運(yùn)行設(shè)備中，主要有以下幾種方式：
(1)專用光纖保護(hù)：
光纖與縱聯(lián)保護(hù)(如：WXB-11C、LFP-901A)配合構(gòu)成專用光纖縱聯(lián)保護(hù)。采用允許式，在光纖通道上傳輸允許信號(hào)和直跳信號(hào)。此種方式，需要專用光纖接口(如：FOX-40)，使用單獨(dú)的專用光芯。優(yōu)點(diǎn)是：避免了與其他裝置的聯(lián)系(包括通信專業(yè)的設(shè)備)，減少了信號(hào)的傳輸環(huán)節(jié)，增加了使用的可靠性。缺點(diǎn)是：光芯利用率降低(與復(fù)用比較)，保護(hù)人員維護(hù)通道設(shè)備沒(méi)有優(yōu)勢(shì)。而且，在帶路操作時(shí)，需進(jìn)行本路保護(hù)與帶路保護(hù)光芯的切換，操作不便，而且光接頭經(jīng)多次的拔插，易造成損壞。張亮 24小時(shí)移動(dòng)專線：18030028083 QQ：2314094943 傳真：0592-6890859
Lot Kawasaki Wafer Handling Robot Gear Reducer Gearbox
Lot 6 Meissner Vangard DeltaDepth Capsule Filter MNPT V
Unit UFC-1100A Mass Flow Controller Gas HE Range 1.5 SL
Summit SIR812 Digital Infrared IR Thermometer 0-500 Deg
Lot 3 FIP / Chemtrol Nibco True Bloc Ball Valve PVC-C 2
Lot 3 Cavro Tecan Precision Pump Syringe 1mL 100uL Liqu
LOT 2 WATSON MARLOW PUMP LOADSURE SANITARY ELEMENT 19mm
Lot 2 TDK-Lambda SCS6-24 DC Power Supply 24V 2.5A 60W M
EDWARDS PV50PKS ANGLE VALVE BELLOWS SEALED ISOLATION
AVANEX PowerReach 2280 TRANSPONDER 10GB TUNABLE 80-Km
Lot 2 Genuine Ricoh AE02-0199/ AE02-0171 Fuser Pressure
Lot 3 Genuine Ricoh Copier Transport Roller Cooling Ent
Lot 2 Sunrise Telecom SA716 Storage 16mb Software SunWa
Avago AFBR-703ASDZ 10Gb SFP+ Transceiver 10GBASE-SR 850
AMAT Leica Leitz Lamp Controller 11-301-364 Control PCB
Cushcraft S240 Antenna 2.4-2.5 GHz 15-dBi 90-Degree
LOT 5 COHERENT LASER CRYSTAL SUBSTRATE PLCC-UV DBAR
LOT 15 SMC ROTARY ACTUATOR TABLE VALVE REGULATOR MSUB20
Lot 6 Entegris Teflon Valve High Purity Chemical Flowel
Lot 2 SMC Pneumatic 1" Air Filter Modular 20-AF5000-N06...
Mac Vacuum Flow Control Valve 56C-13-591JC with Solenoi
Spears 4" PVC Pipe Fitting Flange 150 PSI NSF-61 PC
Meade MA 12mm illuminated Reticle Astrometric Eyepiece
ISCO Tris Peristaltic Lab Pump HPLC Liquid Chromatograp
HP Set Cable Probes for 431XX Series 43100 Defibrillato
OZ-Gedney Hazardous Location GUB-443A Junction Box With
