Features Of American-style Box-type Transformers

It boasts strong overload capacity, allowing for 2 hours of overload at 2 times the rated capacity and 7 hours of overload at 1.6 times the rated capacity without affecting the transformer's lifespan.

It employs an elbow-type connector, facilitating easy connection of high-voltage incoming cables and enabling its use as a load switch in emergencies, allowing for live plugging and unplugging.

It utilizes dual fuse protection. The plug-in fuse (BAY-o-net) is a dual-sensitive fuse (temperature and current) protecting against short-circuit faults on the secondary side of the transformer. The backup current-limiting protection fuse (ELSP) protects against internal faults on the transformer, protecting the high-voltage side.

The transformer typically uses high-flash-point oil (FR3).