The separating filter RF is intended for connection of equipment of high-frequency channels of relay protection, emergency control, to one filter of connection with equipment of telephone communication and data transmission and their additional separation, at their joint work on phase wires of overhead lines of voltage (35 - 750) kV.
The main functions of the RF are:
- transmission of high-frequency signals from the PA protection equipment to the high-voltage line (HV line) and back;
- signal suppression of HF communication equipment at its frequency of operation.
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