Since the multi-split conductors are adopted in domestic compact transmission line of single circuit, the selection of line (phase) spacing in span centrality becomes the one of key problem of deciding the technical parameters of compact transmission line.

The parameters of 500kV Changping—Fangshan compact transmission line are calculated and compared with that of conventional transmission lines.

Nonlinear motion analysis on 500kV compact line conductor;

kV ShenmuXinzhouShibei Lines are adopted twocircuit compact lines.

Based on the electrical theory,this paper introduces the principle of improving the transmission capacity with the compact line of large surge-impedance loading power.

Equations on forced vibration in compactedcompacted circuit systems with displacements as unknown functions are formed, and the analytical formulae for calculating the dynamic of the spacers are obtained by solving the equations.

This paper deduces the free vibration equations of the line system of compacted circuit wth the displacements as the unknown functions, and thus by solving the equations obtains the analytical formulaes for calculating the natural frequencies and vibration models of the line system of compacted circuit.

This paper gives the result of proof-of-principle study of a novel compact electron linac.

In this paper, we talk about some medical applications of a kind of novel compact excimer lasers.