Abstract :
Electric power systems with much higher voltages and larger generating capacity continue to require increased reliability of protective schemes; therefore, a new look is required. This paper presents a workable method for protecting wire line communications facilities entering electric power stations. In the case of leased facilities, a mutually agreeable method for protective equipment to be installed by either party is presented. The protection method to be described is based on the isolation concept and is a combination of existing and improved techniques, made possible by the availability of new equipment and cable with improved dielectric capabilities.
