The transformer works via inductance. It uses mechanical forces to rotate the coils thus regulating the voltage.
A Ferro Ressonant Tranformer works via saturating a Capacitor. This is typically a less reliable transformer . There is also a step type transformer that mechancial moves...
We chose this particular Dry-type transformer because it is totally mechanical. (i.e. no digital electronics) It's the most rugged of it's type.
A TVA design spec. that is writing for larger transformers, I believe, mentions using internal winding heaters for de-energized dry type...
We are thinking about installing a GE Inductrol 75KVA Voltage Regulation Transformer in a room that is vented to outdoor environmental conditions (i.e. no A/C).
The transformer will be used for security lighting at a nuclear plant and will be cycled on and off daily (i.e...
