Connection Filters Type FPE

The FPE-type connection filters, used in conjunction with coupling capacitors and high-frequency cables, are designed to connect multiplexing equipment to phase conductors of power lines with voltages of 35–500 kV. These filters enable the establishment of high-frequency communication channels for transmitting telemechanics signals, relay protection, emergency automation, and telephone communication.

The FPE filters provide:

- Efficient transmission of high-frequency electrical signals between HF equipment and power lines.

- Protection for service personnel and low-voltage circuits of HF communication equipment from industrial frequency voltage effects and from overvoltages during transients and lightning impulses.

To enhance bandwidth and ensure safety, FPE filters employ broadband transformer circuits. For increased reliability during transients, the filters are equipped with modern protective devices, such as surge arresters and varistors. The components are designed to meet IEC 60353 standards for electrical strength and can withstand up to 10 bipolar high-frequency overvoltage impulses.