This paper presents the research on the dynamic loading technology of overhead lines and its effects on the external insulation of the transmission lines. Existing literature on dynamic loading has explained the two main methods, i.e., static temperature raising and real time loading techniques, used for upgrading the transmission capacity of existing transmission lines. However, the forms of the heat balance equation used to explain these techniques in many articles may not clearly be discerned. This paper uses the form of the heat balance equation that clearly shows how the parameters in the equation lead to increased loading of the overhead lines. How the electrical parameters are related to the mechanical parameters in an overhead conductor during loading is also clearly shown. Thus, this paper shows that operation of an overhead line conductor is actually a form of an electromechanical interaction. Two critical electrical power equipment, the transformer and circuit breaker, are examined during a load flow simulation in ETAP to show how they are affected by dynamic loading.

Full text: IJEIR_792_Final.pdf