ASR-411 digital main transformer and control devices as complement of the transformer primary protection and backup protection function, telemetry, remote, remote control and remote adjustment. Main functions: a) device has a measurement of current, voltage, frequency analog telemetry; b) acquisition circuit breakers, energy storage, disconnector, distant per situ and other remote signaling function of the position signal and switch signal; c) points, remote control breaker and energy storage; d) OLTC.