Capacitor Trip Unit
The Capacitor Trip Unit (CTU) is typically installed in substations to operate the shunt trip coil of a circuit breaker during a loss of power supply to transformers. It prevents the transformer from being automatically re-energized when the main power supply is restored, ensuring enhanced system protection and safety. The unit can also be utilized for alarm initiation, standby excitation, continuous DC power supply, or as a reliable source of stored energy. It is housed in a high-impact polycarbonate enclosure, providing durability and protection in demanding operating environments..