Cable status online monitoring and early warning data comprehensive processing terminal

Abstract

The cable status online monitoring and early warning data comprehensive processing terminal is characterized in that it is provided with a casing, and a control circuit is fixed in the casing, and the control circuit is connected to the cable to be monitored. The control circuit at least includes: a cable joint wireless temperature measurement unit for monitoring The joint temperature of the monitored cable is monitored in real time; the cable partial discharge detection unit is used to monitor the partial discharge of the cable; the cable insulation online monitoring unit is used for online real-time monitoring of the insulation state of the cable; and the central processing unit is used for Receive and process the data monitored by the above units. In the cable status online monitoring and early warning data comprehensive processing terminal, a cable joint wireless temperature measurement unit, a cable partial discharge detection unit and a cable insulation on-line monitoring unit are set at the same time, which can collect and process multiple parameters of the cable at the same time. Comprehensively judge the running state of the cable.

Description

technical field [0001] The utility model relates to a comprehensive processing terminal for cable state online monitoring and early warning data, which belongs to the technical field of cable fault detection. Background technique [0002] Cable is an essential transmission device in the power industry, so mastering the actual operation status of the cable is a necessary condition to ensure that the cable can work reliably. In the existing cable state detection system, there are generally the following defects: [0003] (1) The monitoring items are single. Only a certain item of performance data of the cable is collected, so the host computer system cannot fully grasp the multiple state parameters of the cable, so there is not enough criterion to accurately judge the state of the cable, so if it is necessary to monitor the multiple states of the cable If it is judged, multiple systems need to be equipped, and the cost is relatively high. [0004] (2) It is impossible to re...

AI Technical Summary

Problems solved by technology

[0003] (1) Single monitoring item

Only a certain item of performance data of the cable is collected, so the host computer system cannot fully grasp the multiple state parameters of the cable, so there is not enough criterion to accurately judge the state of the cable, so if it is necessary to monitor the multiple states of the cable Judgment, you need to be equipped with multiple systems, the cost is higher

[0004] (2) It is impossible to realize the online judgment of the cable insulation state

[0005] The existing cable insulation test method is to inject a large voltage into the shielding layer to test the insulation performance of the cable after the shielding layer and the grounding terminal are disconnected. Since the cable is in operation, the shielding layer must be grounded, and the shielding layer The voltage value of the injected voltage cannot exceed 50V. Therefore, in the prior art, the insulation performance of the cable cannot be tested online. It must be carried out after the cable is powered off. Once the cable is powered off, it will affect the power consumption of a large number of users. even cause immeasurable economic losses

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