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In order to investigate the electrical characteristics and the morphologic development of secondary arc in atmospheric air, a simulative experimental platform of secondary arc for UHV transmission lines was built and the corresponding experimental procedure was introduced in this paper. The discharge waveforms were categorized into three stages: the short-circuit arc period, the transition period...
The hybrid reactive power compensation (HRPC) for UHV transmission lines is expected to be applied, and its mutual influence with power grid is urgent to be studied. In this paper, the characteristics of secondary arc current before and after the installation of HRPC are compared and analyzed in this model. And the characteristics of secondary arc with different neural reactors, compensation degrees...
The influence of hybrid reactive power compensation on the interrupting characteristics of circuit breakers (CBs) after out-of-phase interruptions has been analysed in this study. Comprehensive and accurate computations to compute the interrupting current, the transient recovery voltage (TRV) and the rate of rise of recovery voltage (RRRV) are provided. The computation results match the simulation...
The hybrid reactive compensation is expected to be applied in UHV transmission lines in the future, and its mutual influence with power grid is urgent to be studied. Considering the influence of the ground stray capacitance of the series compensation devices, the disposal scheme, and the installation position et al., the influence to the out-of-phase fault by the hybrid reactive compensation was computational...
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