System and method for detecting single-phase ground fault point of power distribution line
A single-phase-to-ground fault and distribution line technology, applied in the fault location, information technology support system, etc., can solve the problem that the single-phase grounding fault point of the distribution line cannot be measured, etc., to facilitate the implementation of detection and ensure safety. The effect of running, simplifying the structure
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[0031] Refer to an embodiment of the present invention for a distribution line single-phase ground fault point detection system used in the neutral point through the arc suppression coil grounding system, including: an electronic switch 1, one end of which is connected to the neutral point of the primary side of the distribution line transformer It is used to control the on-time of the switch according to the zero-sequence current phase, control the zero-sequence current to obtain transient parameters and steady-state parameters, and ensure that the zero-sequence current is real and will not damage the equipment in the detection system, especially in the detection system. During the process, the electronic switch 1 produces a larger aperiodic component value when the amplitude of the zero-sequence current is larger, so the electronic switch 1 avoids opening when the zero-sequence current crosses zero, so as to ensure that the aperiodic component of a larger value of the zero-seq...
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