Type PY harmonic mitigating Power TransFilters™ exceed all existing and pending energy efficiency requirements under nonlinear loading.
Type PY transformers’ ultra-low Excitation (no-load) Losses provide high efficiency during periods of light-loading (<15% FL). This benefit is achieved by using higher quality, grain-oriented silicon core steel and full and step-lap miter-cut cores with reduced laminations per group.
Unlike Excitation Losses, which are constant from no-load to full-load, Impedance (load) Losses become significant at approximately 15% FL. Excitation and Impedance Losses are approximately equal at 50% FL under linear loading. Type PY transformers exceed the efficiency requirements of DOE 2016 under linear loading. Optional e-RatedÒ units exceed these efficiency requirements under moderate nonlinear loading (≤K-9). Type PY transformers’ published efficiencies can be matched to anticipated or measured average loading above 50% FL, when required.
Type PV Power TransFilter™ Medium Voltage, UL Listed Dry-Type & Cast Coil Transformers for High K-Factor, Phase-to-Neutral Connected Nonlinear Loads with an integrated Type TPM Transformer Performance Meter™
Type PV transformers’ ultra-low Excitation (no-load) Losses provide high efficiency during periods of light-loading (<15% FL). This benefit is achieved by using higher quality, grain-oriented silicon core steel and full and step-lap miter-cut cores with reduced laminations per group.
Unlike Excitation Losses, which are constant from no-load to full-load, Impedance (load) Losses become significant at approximately 15% FL.
Excitation and Impedance Losses are approximately equal at 50% FL under linear loading. Type PV Power TransFilters™ exceed the efficiency requirements of DOE 2016 under linear loading. Optional e-Rated® units exceed these efficiency requirements under moderate nonlinear loading (≤K-13). Type PV transformers’ published efficiencies can be matched to anticipated or measured average loading above 50% FL, when required.
Type PV transformers cancel positive- and negative-sequence harmonic currents at their common primary bus or within their multi-output secondary windings. They are available in a number of standard primary-to-secondary phase-shifts so that they may be used to create twelve-, eighteen- or twenty-four-pulse systems. In addition, Type PV transformer’s secondary windings are configured to cause the cancellation of all load-generated third-order zero-sequence flux in the core’s magnetic circuit.
Founded in 1965, Donwil sells and services critical business process power and cooling products for enterprises located in Western Pennsylvania, Western Virginia, or Eastern Ohio.
As the exclusive provider of Vertiv, Liebert, Starline, and Hitachi, Donwil provides premium products, unrivaled expertise, and the most responsive and reliable service — which means you can rest assured knowing that your critical business processes are always running.
PA OFFICE
22 McCormick Road
McKees Rocks, PA 15136
phone 412.787.1313
fax 412.787.1333
OH OFFICE
8555 Sweet Valley Drive, Suite N
Valley View, OH 44125
phone 877.373.6254
fax 412.787.1333
email sales@donwil.com