Cable well state comprehensive monitoring and early warning system

Abstract

The invention provides a cable well state comprehensive monitoring and early warning system. The system comprises an intelligent monitoring terminal, a Zigbee wireless communication module and a backstage monitoring host for early warning analysis; the on-site intelligent monitoring terminal communicates with the backstage monitoring host for early warning analysis through the Zigbee wireless communication module; data summarized by the on-site intelligent monitoring terminal are transmitted to the backstage monitoring host for early warning analysis; and the monitoring terminal comprises a sensor acquisition module, a cable current sampling module, a power taking module and an intelligent monitoring host. With the cable well state comprehensive monitoring and early warning system of the invention adopted, a cable well and the real-time operation state of the interior of the cable well can be monitored, comprehensive monitoring of the actual operation state and operation environment of the cable well can be realized, and potential hidden dangers and emergencies of the actual operation state and operation environment of the cable well can be timely warned against.

Description

technical field [0001] The invention relates to a comprehensive monitoring and early warning device for the state of a cable well, in particular to a comprehensive monitoring and early warning system for the state of a cable well. Background technique [0002] The cable trench is an indispensable infrastructure of the substation. The cable in the trench not only involves power transmission, but also involves equipment such as relay protection, automatic control, communication, measurement and metering. It is the nerve center of the substation. Once a cable fails, not only inspection and processing It is difficult and takes a long time, and it may also cause the relay protection or control circuit to fail, causing the accident to expand or even damage the main equipment, and the production cannot be resumed for a long time. [0003] There are many problems in the use of cable trenches, mainly as follows: First, there is a lack of online monitoring of cable operation. Under c...

AI Technical Summary

Problems solved by technology

[0002] The cable trench is an indispensable infrastructure of the substation. The cable in the trench not only involves power transmission, but also involves equipment such as relay protection, automatic control, communication, measurement and metering. It is the nerve center of the substation. Once a cable fails, not only inspection and processing It is difficult and takes a long time, and it may also cause the relay protection or control circuit to fail, causing the accident to expand or even damage the main equipment, and the production cannot be resumed for a long time

[0003] There are many problems in the use of cable trenches, mainly as follows: First, there is a lack of online monitoring of cable operation. Under current conditions, it is easy to cause temperature rise, damage the insulation layer, and eventually lead to fire

The second is that all kinds of garbage in the cable trench can easily form combustible gases such as methane through the catabolism of microorganisms. The ignition point of methane is very low. Due to the tightness of the cable trench, its accumulation brings considerable hidden dangers to the operation of high-voltage cables.

Third, there is a lack of monitoring of the water in the cable trench. During the rainy season, many cables are running under flood conditions, which seriously affects the cable insulation and service life.

However, this patent does not have a battery management system. When the cable outlet is grounded or short-circuited, it is difficult to determine the fault point section, and it cannot provide multi-terminal remote interaction and on-site tracking for the staff.

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