Water hatred of composite insulators in heavily contaminated areas;

Study on calculating electric field of composite insulator;

Study on anti-aging effect of composite insulator;

Operation analysis and evaluation of composite insulators of transmission lines in Shanghai

Composite insulators have been used in China for over ten years,and great importance has been attached to the hydrophobic property,the mechanical strength and flashover voltage.

A new measurement and data acquisition system for the aging test of the composite insulators is presented.

Operating condition and evaluation of compound insulators in Panyu;

Combinating with running situation and experience of the compound insulater for transmission line, the artitle introduces the structure and nature of compound insulator and analyzes the problems existing in the raw material, structure and technique of compound insulator.

According to analysis, test and demonstration on the causes of fracture of compound insulators produced by Siemens Company, German, which were installed on I, II, III-circuit lines of Bei-Lan 500 kV transmission line, the paper gives out the result that fracture of these insulators was caused by electric corrosion and it is the quality problem only.

Trouble analysis and research of synthetic insulator in operation;

The inservice synthetic insulators in Hebei southern power network are sampled and examined for the first time.

This paper presents the study and analysis of external flashover on 110-500kV transmission line synthetic insulators in the past decade.

Along with the increment of the time in service of the composite insulators the more and more failures of the composite insulators appear, in which there are many cases of the faults caused by the brittle fracture of Fiber Reinforced Plastic (FRP) rods, so the attention to this problem is widely attracted at home.

Based on the statistical data of permanent faults due to insulator in Guangdong Province,the comparison of the performance of ceramic,glass and organic synthesis insulators for transmission line on material,process of production,craft control and structure is made,and aging principles of insulator are analyzed.