Power Line Carrier HV/HF (High Frequency) Line Coupling Equipment pursuant to a framework agreement

age substation that enables communication over a high voltage (HV) line to a remote substation. High Voltage, High Frequency (HV, HF) PLC coupling equipment is mounted on the overhead line and couples the low voltage HF communications signal onto the high voltage line. HV, HF line coupling consists

of the following devices: Line Trap A line trap is a device inserted into high voltage a.c. transmission lines that prevents undue loss of carrier signal power, typically in the range 30 kHz to 500kHz under all power system conditions and t