Yes, modern LFD systems are usually equipped with automatic or semi-automatic control, and this is considered best practice for large transformers. In real time, the system typically measures winding temperatures at several points, applied current and voltage, vacuum level, and moisture evolution rate from the condenser or exhaust. These signals are used to automatically adjust heating power and maintain safe temperature limits. Automation is important not only for efficiency, but also to prevent local overheating and to determine the true end point of drying based on moisture release, not just elapsed time.