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220 kV及以上电压等级的很多电力线路使用电力线载波机传输高频保护信号。为了满足保护信号的传输要求,讨论了电力线载波机的功率选取标准和关键指标,通过计算说明了电力线载波机功率的选取原则,并指出了需要注意的问题,对实际工程中电力线载波机的功率选取和频率安排具有一定参考意义。
Many power lines at 220 kV and above use a power line carrier to transmit high-frequency protection signals. In order to meet the transmission requirements of protection signals, the power selection criteria and key indicators of power line carrier are discussed. The principle of power selection of power line carrier is illustrated and the problems to be noticed are pointed out. The power of power line carrier Selection and frequency arrangements have a certain reference value.