Multifunctional external-force-damage-resistant monitoring system and method for high voltage cable fixation construction site

Abstract

The invention discloses a multifunctional external-force-damage-resistant monitoring system and method for a high voltage cable fixation construction site. The system and the method realize real-time monitoring on a grounding current of a metal sheath of a high voltage cable, a cable joint temperature of the high voltage cable and a fact that whether a ground wire of the high voltage cable is stolen and cut. The system comprises a master station, a transmission device and a plurality of terminal monitoring devices; the terminal monitoring devices respectively comprise a high voltage cable metal sheath grounding current monitoring device used for monitoring grounding current data of the metal sheath of the high voltage cable, a high voltage cable joint temperature monitoring device used for monitoring the cable joint temperature of the high voltage cable and a high voltage cable ground wire stealing-resistant and cut-resistant monitoring device used for monitoring whether the ground wire of the high voltage cable is stolen and cut; and the transmission device is used for receiving the grounding current of the metal sheath of the high voltage cable, the cable joint temperature of the high voltage cable and state data of the ground wire of the high voltage cable, summarizing and then uploading to the master station.

Description

technical field [0001] The present disclosure relates to the technical field of cable partial discharge monitoring, in particular to a multi-functional external force damage monitoring system and method for fixed construction points 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 1kv-1000kv, and is mostly used in power transmission and distribution. Due to factors such as the weak protection awareness of power facilities in some construction units, the hidden danger of external damage has always threatened the safe operation of cable lines. [0003] The main causes of external force damage to high-voltage cables are: (1) the impact of human factors such as urban construction on the safe operation of power cables; The operation management does not pay enough attention, and the inspections of the operation personnel are not in place, and the phenomenon of omission is re...

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Problems solved by technology

[0003] The main causes of external force damage to high-voltage cables are: (1) the impact of human factors such as urban construction on the safe operation of power cables; Insufficient attention is paid to operation management, and inspections by operating personnel are not in place, and omissions are common

[0004] The inventor discovered during the research and development process that the existing high-voltage cable damage monitoring methods include: manual inspection, distribution of promotional materials, and signing of safety disclosure agreements, etc., and inspection personnel need to complete regular inspections and elimination tasks every month, and it is impossible to fix the spot around the clock It is also difficult to report the hidden dangers of external damage in time to monitor the hidden dangers of construction, and the expected results cannot be achieved, and the safe and stable operation of high-voltage cables cannot be guaranteed.

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