Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Ferroresonant three-phase constant AC voltage transformer arrangement with compensation for unbalanced loads










Image Number 7 for United States Patent #4893069.

A ferroresonant three-phase constant AC voltage transformer comprising three transformer iron cores with one for each corresponding input supply phase, primary windings and secondary windings formed on each of the transformer iron cores, series reactance components or reactors connected in series, with the primary windings, automatic voltage regulating means for controlling secondary output voltages generated at the secondary windings to a predetermined target value, compensating windings formed so as to be inductively coupled to each of the series reactance components or reactors, and means for connecting the compensating windings in series with each other to form a closed loop circuit. The secondary output voltages are theoretically kept in balanced condition even when the loads or the primary input voltages or both are unbalanced.








 
 
  Recently Added Patents
Multiple-junction photoelectric device and its production process
Expression and export of angiogenesis inhibitors as immunofusins
Method and device for processing 3-D image data of a skull
Accelerator and method for irradiating a target volume
Optical data storage media
Thienopyridine compounds, and methods of use thereof
Light emitting device and manufacturing method thereof
  Randomly Featured Patents
Anesthetic methods for mammals
Convertible crib
Catadioptric lens
Coil winding machine and method of producing deflection coil
Oral care implement
Biological defense masks
Visor and method of manufacturing
Hydrocracking process using ultra-large pore size catalysts
Method and apparatus for alternator stator turn-to-turn short detection
Modular data sensing and logging system