| 1756-OV16E |
| 1756-OV16E |
| 1756-OV16E |
光纖通道與繼電保護配合的幾種方式
目前，縱聯(lián)保護采用光纖通道的方式，得到了越來越廣泛的應(yīng)用，在現(xiàn)場運行設(shè)備中，主要有以下幾種方式：
(1)專用光纖保護：
光纖與縱聯(lián)保護(如：WXB-11C、LFP-901A)配合構(gòu)成專用光纖縱聯(lián)保護。采用允許式，在光纖通道上傳輸允許信號和直跳信號。此種方式，需要專用光纖接口(如：FOX-40)，使用單獨的專用光芯。優(yōu)點是：避免了與其他裝置的聯(lián)系(包括通信專業(yè)的設(shè)備)，減少了信號的傳輸環(huán)節(jié)，增加了使用的可靠性。缺點是：光芯利用率降低(與復用比較)，保護人員維護通道設(shè)備沒有優(yōu)勢。而且，在帶路操作時，需進行本路保護與帶路保護光芯的切換，操作不便，而且光接頭經(jīng)多次的拔插，易造成損壞。張亮 24小時移動專線：18030028083 QQ：2314094943 傳真：0592-6890859
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