Capacitor Blocking Units (CBU’s) are used to prevent loss of high frequency power line communication signals through grounded capacitor banks.
Rated for Currents of 15,30,60, 85 amps designed for 125 kV BIL
Special millihenries available
Mounting Pole or cross-
A high impedance inductor that prevents distribution line carrier signals from being shunted to ground through grounded distribution capacitors.
Provides low impedance to ground at 50 or 60 hertz power frequency, but a high impedance to ground to the carrier signal.
Designed to withstand the switching duty imposed by switched capacitor banks and fault currents that may be associated with capacitor failures.
A single CBU is needed for each phase of a single bushing, ground capacitor bank.