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JP2004343910A Power supply feeder for construction and construction method for cable television using the same 有权
标题翻译：用于电缆电视的施工和施工方法的供电给料机
公开(公告)号：JP2004343910A
公开(公告)日：2004-12-02
申请号：JP2003138667
申请日：2003-05-16
申请人： Kansai Electric Power Co Inc:The , Kansai Tech Corp , 株式会社関西テック , 関西電力株式会社
发明人： SAKOTA SABURO , SUMI TADAHIKO , YONEYA SATORU , SAKAI YASUHARU
IPC分类号： H02J9/06 , H02G1/02 , H02G7/00 , H02J3/04 , H02M7/493 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power supply feeder for construction in which switching construction of an existing power supply feeder and an existing coaxial cable can be executed in an uninterruptive wave manner in maintenance work of a transmission path for a cable television. SOLUTION: The power supply feeder for the construction is composed of a rectifier (12) for rectifying AC fed from an external power supply to DC, an inverter (13) for converting the rectified DC to the AC matched with the phase of the AC flowing in a coaxial cable (5) for the CATV and for outputting it, a transformer (14) for outputting the voltage of the inverter output by matching it with the voltage of the coaxial cable (5), and a control unit (CON) for controlling the inverter(13) so that the phase of the inverter output is matched with the phase of the AC flowing in the coaxial cable (5) by detecting the phase of the AC of the external power supply and the phase of the AC flowing in the coaxial cable (5). COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于构造的电源馈线，其中可以以不间断的方式在现有的电源馈线和现有同轴电缆的开关结构中执行用于有线电视的传输路径的维护工作。
解决方案：施工用电源馈线由整流器（12）组成，整流器（12），用于整流从外部电源馈送到DC的交流电;逆变器（13），用于将整流后的DC转换成与交流电流在用于CATV的同轴电缆（5）中流动并输出;变压器（14），用于通过将同步电缆（5）的电压匹配来输出逆变器输出的电压;以及控制单元 CON），用于控制逆变器（13），使得逆变器输出的相位与通过检测外部电源的AC的相位和同步电流的相位与在同轴电缆（5）中流动的AC的相位匹配 AC在同轴电缆（5）中流动。版权所有（C）2005，JPO＆NCIPI

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