- In these units, coils are enveloped in resign by process of moulding.
- The transformer coils are solidly cast in resin under a vacuum in a mould.
- The manufacture ring process in such that winding is locked in strong epoxy resign.
- Epoxy resign as a high dielectric strength which makes the transformer sustain extreme operating conditions.
- In the actual environments like chemical process plant, constructional material factories outdoor installations coil needs additional strength and protections. Cost resign is suitable for this.
- In such environments salts, moisture caustic gases and metal particles ruin other types of dry transformers.
Electrical surges and overloads of repeated shorts duration are handled by this type.
- Advanced electronic control the windings process this achieve uniformly distributed winding and high level of occurring.