1756-OW16I 1756-OW16I
1756-OW16I1756-OW16I
光纖縱聯(lián)電流差動(dòng)保護(hù):
光纖通道的大容量、較高的抗干擾能力,為縱聯(lián)電流差動(dòng)的應(yīng)用提供了可能。首先得到應(yīng)用的是模擬式的光纖縱聯(lián)電流差動(dòng),當(dāng)前已很少采用。隨著大規(guī)模集成電路的應(yīng)用,數(shù)字式電流差動(dòng)廣泛應(yīng)用開來。目前,在華北網(wǎng)運(yùn)行的縱聯(lián)電流差動(dòng)保護(hù)有:REL-561(ABB)、LFCB-102(GEC)、MCD(三菱)、LFP-943(南瑞)、7SD511(西門子)等保護(hù)裝置。采用的通道方式有復(fù)用光纖方式和專用光纖方式。
因?qū)S?或復(fù)用)光纖保護(hù)主要的區(qū)別就是通道形式不一樣,但構(gòu)成縱聯(lián)的原理與常規(guī)保護(hù)沒有區(qū)別,所以,不再進(jìn)一步分析。鑒于光纖縱聯(lián)電流差動(dòng)保護(hù)原理簡(jiǎn)單,應(yīng)用前景廣泛,對(duì)通道依賴性強(qiáng),下面主要對(duì)縱聯(lián)電流差動(dòng)保護(hù)的應(yīng)用進(jìn)行分析、討論。
【公 司】: 廈門泰尼電氣有限公司
【主 營(yíng)】: AB、GE、施耐德等各類PLC產(chǎn)品
【價(jià) 格】: 電議
【發(fā)布人】: 張亮
【電 話】: 18030028083
【所在地】: 福建 - 廈門
【座 機(jī)】: 0592-6809819
【來 源】: 供應(yīng)信息 > 電工、電氣 > PLC
【Q Q】: 2314094943
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