Title :
Prediction of the thermal runaway temperature for cap and pin porcelain insulator
Author :
Su, Zizhou ; Liu, Yanbing
Author_Institution :
Electr. Power Res. Inst., Beijing
Abstract :
The heat conduction inside a porcelain conical head insulator has been simulated and used to estimate the insulator thermal runaway critical ambient temperature under various voltages. The simulation results are compared with measured results. They show that the thermal runaway occurs at the top of the porcelain insulator head. On the basis of this investigation test conditions are established and a simplified test procedure for DC insulators is suggested
Keywords :
heat conduction; insulating materials; insulation testing; insulators; DC insulators; cap and pin insulators; critical ambient temperature; heat conduction; porcelain conical head insulator; simulation; test conditions; test procedure; thermal runaway temperature; Equations; Immune system; Insulation; Insulator testing; Porcelain; Resistance heating; Shape; Temperature measurement; Thermal resistance; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38380
