| 20090102438 | USEFUL IMPROVEMENTS IN THE ART OF 3-PHASE ELECTRONIC TAP CHANGER COMMUTATION DEVICE - The invention is for a 3-phase electronic tap changer commutation device to be utilized in electronic regulators, and more particularly to 3-phase alternating current (AC) electronic tap-changing voltage, current or phase correcting regulators. The present invention provides a specific transformer winding topology and commutation technique that improves performance and reduces cost compared to conventional methods. | 04-23-2009 |
