Railway substation grounding monitoring and early warning system and method

Abstract

The invention relates to a railway substation grounding monitoring and early warning system and method. The system comprises a monitoring center, an intelligent resistance monitoring box and a data collector. The intelligent resistance monitoring box is connected to the data collector through a 485 bus, and the data collector is connected to the monitoring center through the network switch; the intelligent resistance monitoring box is used for monitoring the grounding condition of a monitored point to obtain grounding monitoring data, and the grounding monitoring data comprises a grounding resistance value; the data collector is used for collecting grounding monitoring data monitored by the intelligent resistance monitoring box and sending the grounding monitoring data to the monitoring center through the network switch; and the monitoring center is used for receiving the grounding monitoring data sent by the data acquisition unit, visually displaying the grounding resistance value of the monitored point based on the grounding monitoring data, analyzing the grounding state of the corresponding monitored point based on the grounding resistance value, and giving an abnormal alarm when the grounding state is abnormal. Therefore, on-line monitoring of grounding state information of each monitored point of a railway substation is realized.

Description

technical field [0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a grounding monitoring and early warning system and method for a railway substation. Background technique [0002] The reliability of power supply directly determines the safe and stable operation of the railway. The railway substation provides the power supply for railway communication and signal first-level load. Lightning protection and grounding are the most important link. According to the requirements of TB10180-2016 "Technical Specifications for Railway Lightning Protection and Grounding Engineering", railway buildings and structures should integrate railway communication, signal, information, disaster monitoring, vehicle Buildings belonging to equipment houses such as safety precautions and early warnings are in accordance with the requirements of the second category, which shows its importance. [0003] Railway substations generally use buil...

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Problems solved by technology

[0003] Railway substations generally use building structure grounding or artificial grounding bodies such as galvanized flat steel and angle steel as grounding protection. However, due to factors such as serious corrosion, rust or non-conduction of the grounding body in unfavorable geology, the grounding resistance is difficult to meet. Require

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