Solar converter step-up transformer

May 10, 2011

Pacific Crest Transformers offers the SPSU photovoltaic (PV) solar converter step-up transformer, which is suitable for connecting solar farms to the electricity grid at large-scale solar power installations.

The transformer is designed for the additional loading associated with nonsinusoidal harmonic frequencies often found in inverter-driven transformers. A system of multiple windings reduces transformer costs and minimizes the transformer’s footprint by combining the step-up function to fewer transformers than other systems, the manufacturer states.

Designed and constructed to meet and exceed earthquake standards, the product is rated for installation in the highest earthquake rating zones. The transformer also incorporates a variety of fluids, including less flammable fluids required for enclosed applications.

It features circular windings that spread the radial forces evenly over their circumference and have cooling ducts throughout the coils, eliminating hot spots that lead to premature breakdown and ultimately to transformer failure. Coil end blocking with heavy-duty, 3-ga. steel bracing and proprietary pressure plates contains the axial forces exerted during a fault condition. These forces can cause telescoping of the coils, shortening transformer life.

The transformer has round coils; a cruciform, mitered core with heavy-duty clamping; a proprietary pressure plate design; and a no-load tap changer.

Pacific Crest Transformers * 541-826-2113 * www.pacificcresttrans.com