US6169674B1
|
|
Transformer, system and method to control harmonic distortion
|
US5449991A
|
|
Motor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an autotransformer
|
US5422550A
|
|
Control of multiple motors, including motorized pumping system and method
|
US5216356A
|
|
Shielded three phase transformer with tertiary winding
|
US5130628A
|
|
Transformer providing two multiple phase outputs out of phase with each other, and pumping system using the same
|
CA2144243A1
|
|
Motor control system and components thereof
|
US5130616A
|
|
Motor control system and components thereof
|
US5079499A
|
|
Transformer providing two multiple phase outputs out of phase with each other, and pumping system using the same
|
US5005100A
|
|
Transient-filtered transformer
|
US4868481A
|
|
Apparatus and method for balancing electrical currents in a multiple-phase system
|
US3934326A
|
|
Electric meter installing device
|
US3570103A
|
|
Glass meter installing device
|