Austin Ring Transformers
> Single Winding Series
> Dual Winding Series
> E-Cap Series
> A-9600 Oil-Filled Transformer
Transformer Design History.
The traditional Austin air-spaced ring transformer is
designed for both exterior and interior usage. The purpose of this product
is to provide a means of coupling the 50/60 Hz supply voltage for tower
lighting to the tower while maintaining RF isolation between supply and
Austin's Ring Type Isolation Transformers are developed for use on AM
radio towers, where the incoming AC power line must be isolated from the
tower lighting system. These transformers utilize a high quality, low
loss steel toroid core. This unique design allow
the necessary 50/60 Hz AC power to be magnetically coupled through to
the tower lights, while at the same time blocking the flow of RF energy
from the tower to the AC power line by virtue of the extremely low primary
to secondary capacitance (10-15 pF).
For sites which experience rain, fog, salt spray or sand/dust storms,
a housing enclosure can be supplied to protect the transformer from the
Oil-filled tower lighting transformers with RF isolation values up to
250 kV rms. and beyond are also available. This type of transformer has
its windings immersed in oil contained within a porcelain cylinder placed
between steel end plates, thereby forming a transformer "module".
These modules can be stacked on top of one another, in series, for very
high RF voltage requirements.
Custom transformers are also available upon request.
Austin Ring transformers offer the following
- Air Insulation - Minimum RF loss
- Low Capacitance - Minimum and stable effect
- Regulation - Better than 10% under normal
- Efficiency - Better than 90% under normal
- Mounting - Standard pipe unions supplied
- Compatibility - Allow operation at either
50 or 60 Hz
- Lightning Gap - Supplied as standard