Theft-proof early warning system for cables

Abstract

The invention discloses a theft-proof early warning system for cables, which can effectively judge cable faults. The system comprises master equipment and slave equipment; the master equipment comprises a master processor module, and a GPRS (General Packet Radio Service) remote communication module, a high-frequency carrier transceiving module I, an audio carrier transmitting module, a CT power taking module I and an electric field measuring module I connected with the master processor module respectively; the slave equipment comprises a slave processor module, and a high-frequency carrier transceiving module II, an audio carrier receiving module, a CT power taking module II and an electric field measuring module II connected with the slave processor module respectively; the high-frequency carrier transceiving module I and the high-frequency carrier transceiving module II are separately connected to two ends of a cable inner conductor; the audio carrier transmitting module and the audio carrier receiving module are separately connected to two ends of a cable shielding layer; the CT power taking module I and the CT power taking module II are separately connected to the two ends of the cable inner conductor; and the electric field measuring module I and the electric field measuring module II are separately connected to the two ends of the cable inner conductor.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to a cable anti-theft early warning system. Background technique [0002] With the development of urban distribution network, more and more cables are used. The theft of cables has become a very headache for the power supply department. If the power supply is interrupted, it will bring huge damage to the production and life of relevant units, enterprises and the people. [0003] When the thief committed the crime, the outer sheath, steel armor and inner sheath of the cable were completely stripped and discarded in the well, and the copper shielding layer wound on the wire core was all stolen. The criminals have considerable professional skills and did not destroy the inner insulation of the cable while stealing this layer of copper skin, otherwise they are very likely to be electrocuted and killed. The cable shielding layer is wrapped with copper skin with a thickness of l...

AI Technical Summary

Problems solved by technology

However, due to problems such as communication rate and channel capacity limitations, medium-voltage carrier has not become the main communication method in the construction of distribution network automation. Due to engineering barriers such as high-voltage coupling, carrier communication technology is still difficult to implement in 10kV overhead lines.

Images