REPEATING SYSTEM FOR POWER DISTRIBUTION LINE CARRIER ANSWER-BACK SIGNAL

摘要

PURPOSE:To securely transmit an answer-back signal for power distribution line carrier transmission by detecting a signal current from a current trans former for signal detection, and amplifying and applying it to a power distribu tion line from an application transformer. CONSTITUTION:Current transformers 6 and 7 for signal detection are laid where a line from the main transformer 2 on a power distribution tower is branched into 6.6 kV power distribution lines, and the signals of the current transformers 6 and 7 are inputted to a repeater 4. The repeater 4 detects the signals of the current transformers 6 and 7, and amplifies and sends the signals to the 22 kV power distribution line 1 from an application transformer 23 for repeating which is different from the main transformer on the power distribution tower.