In the progress of voltage inverter controling multi-phase motor, the MMF is constantly kept by voltage defrequency and winding switch.

Rebuilding of Control Winding of A Self-saturation Reactor and Its benefit;

Winding Deformation Measurment and Calculation for Ability to Withstand Short Circuit in Transformer;

Calculation Software for Winding Short Circuit Strength of Power Transformer;

The study about improving iacquer of electric machines windings;

Arrangement of Stator Windings of AC Motor;

On Principle of Symmetric Displacement and Repeaded Addition for 3-phase Pole-changing Windings;

A kind of new technology of insulating handling——the vacuum continuous impregnating (VCD is a development for using VPI technology, also is a supplement for useing VPI technology to impregnate the small coil which are produced in according to large, batch and high technical requirements, and is a saving-type and protectting environmental-type insulating technology.

This article begins from the transformer principle of work,and draws out the question——How to determine the direction of the transformer vice-side winding electric current,revolving this question,the author gives the detailed explanation,and provides the readers some correlation reference to study the transformer.

Harmonic analysis of synchronous generator stator winding internal fault simulation based on multi-loop theory;

Analysis of modal characteristic of generator stator winding end department defect and on-the-site treatment;

Calculation model of asymmetric-branches electromagnetic parameters for hydro-generator stator winding;