Transformers with motor-driven tap changers can be controlled with automatic voltage regulators.
Actuation of the motor drive leads to a voltage change by one tap. If the difference between actual voltage and set-point exceeds a certain limit, a regulation comand ("up", "down") is initiated.
SPRECON-E-C-AVR can be adapted to customer-specific requirements to the greatest possible extent. Moreover, several units can be operated in parallel mode, which is based on the master/follower principle. Thereby, the circulating reactive current is monitored.
