Study on the Harmonic of Electrical Railway;

The effect of RE (such as Ce, Y and mixed Ce+Y, etc) on ageing precipitate, characteristics and softening resistance of Cu-Cr-Zr alloys contact wire used in electrical railway were investigated in this paper.

Since the main reason of producing maximal mutational current in electrical railway load is not well known,so that the setting of startup component using current mutational value can t be calculated exactly and the line protective device often mis-operation.

The construction of contact line in the reconstruction of established line of electrified railway;

Discussion on the design of the placement of starting signal in electrified railway line;

Improvement construction method of contact network beneath over-bridge in electrified railway;

Secondly the features and effects on power system of harmonics and negative-sequence current are analyzed,including load wave generated by electrification railway,which would be harmful to capacitor,relay protection and electric power metering.

In order to lessen manual work in traction load test of electrification railway and to increase the efficiency in data treatment,the traction load test software is developed based on the existing remote supervisory system of electrification railway.

Quick safety construction technology on electric railway multiple line s tunnel blast boring;

Analysis of the operation of the generator negative current protection impacted on by the electric railway loading

Research on rail potential and ground surface potential distribution in heavy loading electric railway

The engineering project of electrification remodeling on Haerbin-Dalian line was supported by the loan from Germangovernment, and the system imported the German electrification railway technology, equipment and managementmethod, which is the first example of its kind in Chinese railway electrification construction.