Disconnecting link motor operation state remote monitoring system

Abstract

The invention relates to the technical field of power maintenance equipment, in particular to a disconnecting link motor operation state remote monitoring system. The system comprises an electric energy acquisition device, an intermediate relay, a mobile terminal and a PLC, and is applied to monitoring a disconnecting link motor, and the disconnecting link motor comprises a disconnecting link motor power supply used for providing energy for opening and closing of a disconnecting link, and a disconnecting link self-holding power supply used for independently controlling the start and stop of the disconnecting link motor. The electric energy acquisition device acquires working electric energy data of the disconnecting link motor in real time and transmits the data to the PLC, the PLC compares the data with a preset value, if the data is abnormal, the PLC issues a disconnection command to the intermediate relay, and the intermediate relay cuts off a disconnecting link self-holding power supply, so that the disconnecting link motor stops running and waits for maintenance; and meanwhile, the PLC transmits the electric energy data, the disconnecting link position state and the disconnecting link motor fault condition to the mobile terminal for checking.

Description

technical field [0001] The invention relates to the technical field of electric power maintenance equipment, and more specifically, to a remote monitoring system for the operating state of a knife switch motor. Background technique [0002] In the daily work of the substation, the operation personnel in the station often encounter the phenomenon that the work progress is affected and the work stagnates due to the fault of the knife switch during the operation. The more common phenomenon is that during the power outage process, the progress of the power outage operation is slowed down due to the failure of the knife switch to open and close normally, which affects the power transmission and cannot be completed on time. [0003] Due to the large number of switches, the specifications and models of the switches of different manufacturers are different. When a switch fails, the operating personnel are limited by professional skills and cannot accurately judge and describe the ca...

AI Technical Summary

Problems solved by technology

[0002] In the daily work of the substation, the operation personnel in the station often encounter the phenomenon of work progress and work stagnation due to the failure of the knife switch during the operation process.

The more common phenomenon is that during the power outage process, the progress of the power outage operation slows down due to the failure of the knife switch to open and close normally, which affects the power transmission and cannot be completed on time.

[0003] Due to the large number of switches, the specifications and models of the switches of different manufacturers are different. When a switch fails, the operating personnel are limited by professional skills and cannot accurately judge and describe the cause of the fault when reporting the fault, or cannot provide valid data information, and cannot quickly find the fault. There is a large error between the initial judgment of the maintenance personnel on the fault of the knife switch and the actual situation on the site, which may easily cause the maintenance personnel to rush to the site only to find that the preparations are insufficient, such as: insufficient number of spare parts, mismatched spare parts models, lack of special tool handling, etc. Do not redo the defect elimination work plan, virtually reducing the efficiency of defect elimination

At present, when the switch motor fails, it is mostly based on human judgment, and there is no special system or device to collect and statistically analyze the changes in the electrical quantity during the operation of the switch;

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