Portable mobile alternating current intrusion fault detection and positioning device

Abstract

At present, most of alternating current intrusion fault detection devices are fixedly installed, while, with such kind of installation mode adopted, a specific fault point cannot be judged and positioned; some mobile grounding fault finding devices take alternating current intrusion faults as common grounding faults and perform troubleshooting through injecting a low-frequency signal. The invention belongs to the electric power detection technical field and provides a portable mobile alternating current intrusion fault detection and positioning device. The portable mobile alternating current intrusion fault detection and positioning device comprises a host signal source and a hand-held detector; the host signal source is used for monitoring whether alternating current intrusion exists in a direct-current system, displaying voltage and alternating current components in the direct-current system and issuing data information to the handheld detector; and the handheld detector performs alternating current intrusion point troubleshooting according to received data information. According to the portable mobile alternating current intrusion fault detection and positioning device of the invention, a non-fixed installation mode is adopted, and therefore, with a portable mobile type installation structure adopted, the portable mobile alternating current intrusion fault detection and positioning device can move to find a fault point and position a specific alternating current intrusion fault point.

Description

technical field [0001] The invention belongs to the technical field of electric power detection, in particular to a portable and mobile AC break-in fault detection and positioning device. Background technique [0002] The DC power supply system is a system that provides power for protection, and its stability and reliability directly affect the working conditions of protection. Among them, the AC intrusion into the DC power system is one of the main faults that affect the stability and reliability of the DC power system. It can directly lead to protection malfunctions, resulting in serious system failures. At present, there are many domestic technical solutions for alarming and line selection devices, patents, and journals for AC intrusion into DC power supply systems, such as: AC intrusion into DC power supply alarm device for substations (CN201220534548.0), a DC power supply system for substations The AC intrusion warning monitoring device (201310698981.7), the non-inject...

AI Technical Summary

Problems solved by technology

[0004] First, most of the current products or technical solutions only have the function of monitoring and line selection for the failure of AC intrusion into the DC power supply system. They are all fixed installation methods, and there is no way to determine the specific fault point.

Images