Secondary Arc Modeling for UHV Double Circuit Transmission Lines Based on the Improved Mayr Equation
This paper focuses on the characteristcis of the secondary arc of UHV double circuit transmission lines.Then the modified Mayr equation and the electromagnetic transient simulation software (ATP-EMTP) are adopted to set up a precise mathematical model for secondary arc.The nonlinear characteristics of the secondary arc current and voltage are studied through incorprating the model into EMTP software,and the distribution of secondary arc duration is analyzed.Emphatically,the relationship between the neutral reactor configuration scheme and the arcing time of the secondary arc is investigated.The research results provide a reference for the operation of the UHV double circuit transmission lines.
UHV transmission linedouble-circuit transmission lines on the same towersecondary arcshunt reactor