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
Image capture and identification system and process
Audio processing in a multi-participant conference
Cosmetic/dermatological compositions comprising naphthoic acid compounds and polyurethane polymers
Electronic device and control method therein
Integrated transmit/receive switch
Method and system for automatically hiding irrelevant parts of hierarchical structures in computer user interfaces
Platform for generating electricity from flowing fluid using generally prolate turbine
  Randomly Featured Patents
TGF-.beta. protein compositions for inhibition of cell proliferation
Wine aerator
Customer intelligence in a cloud operating environment
Three-port valve
Extended base band multicarrier system
Production of battery-grade manganese dioxide
Methods for treating diseases
Device and method for limiting drain-source voltage of transformer-coupled push pull power conversion circuit
Pen cap stylus for use with touch screens
Assay reagents and devices