High voltage cable protective layer grounding wire stealing and cutting monitoring system

Abstract

The present invention discloses a high voltage cable protective layer grounding wire stealing and cutting monitoring system, comprising a grounding wire, a current transformer, and a monitor, whereinthe monitor is provided with a microprocessor, an encoder, a power module, an alarm device and a wired transmission module, a current transformer and two magnetic induction terminals are arranged on the grounding wire, two magnetic sensing terminals are mutually inductive and connected to a microprocessor to form an electromagnetic induction circuit, the current transformer, the encoder, the powermodule, the alarm device and the wired transmission module are all connected with the microprocessor, and the microprocessor is connected to the monitoring background through the wired transmission module. When applying the system, high voltage cable protective layer grounding wire stealing and cutting monitoring is formed.

Description

technical field [0001] The invention relates to supporting facilities for high-voltage cables, in particular to a monitoring system for stealing and cutting ground wires of the protective layer of high-voltage cables. Background technique [0002] High-voltage cable is a kind of power cable, which refers to the power cable used to transmit between 10KV-35KV, and is mostly used in the main road of power transmission. A high-voltage cable is a cable mainly used for power transmission. Generally, high-voltage power transmission is used to avoid power loss, and the voltage is adjusted according to the power transmission range. Most high-voltage cables are single-core cables. When laying, if the two ends of the metal protective layer are connected to each other and then directly grounded, when the wire core passes current, the induced voltage generated on the metal protective layer will cause induction due to the electromagnetic induction of the conductor current. The emergence ...

AI Technical Summary

Problems solved by technology

Most high-voltage cables are single-core cables. When laying, if the two ends of the metal protective layer are connected and grounded directly, then when the wire core passes current, the induced voltage generated on the metal protective layer will cause induction due to the electromagnetic induction of the conductor current. The emergence of electric current, these induced currents are grounded through special grounding wires, because the induced current flowing through the grounding wires is not large, there will be criminals who will take the risk to steal these grounding wires and sell them, resulting in financial losses of transmission lines