On-line monitoring device for power transmission line wire connection point temperature

Abstract

The invention discloses an on-line monitoring device for a power transmission line wire connection point temperature. The device comprises a temperature monitoring module and a signal transmission base station. A battery and a wireless transmission chip are fixedly connected to the interior of a shell; a thermistor sensor is fixedly connected with the shell and extends to the outer surface of theshell from the inside; the outer side of the shell is sleeved with a silica gel sleeve; a ribbon is arranged on the silica gel sleeve; the thermistor sensor is electrically connected with the wirelesstransmission chip; the battery is electrically connected with the thermistor sensor and the wireless transmission chip respectively; the wireless transmission chip is wirelessly connected with the signal transmission base station; the signal transmission base station is wirelessly connected with a cloud server; and the cloud server is wirelessly connected with a terminal. The device has the beneficial effects that the reliability of the device is improved; the temperature can be monitored online for 24 hours and the heating hidden danger of the device can be found in time; the practicabilityis high, the personnel cost, the time cost and the equipment cost are saved; the labor intensity of operation and maintenance personnel is greatly reduced; and the working efficiency is improved.

Description

Technical field: [0001] The invention relates to the field of electric power, in particular to an on-line temperature monitoring device for connection points of conductors of transmission lines. Background technique: [0002] Most of the connecting fittings at the connection points of the transmission line wires are bolted, which are current and heat-conducting equipment. Due to the relationship between the torque value of the bolted connection, after a period of operation, there will often be hidden dangers in the operation of the connecting fittings exceeding the allowable heating temperature. [0003] The "Operation Regulations for Transmission Lines" stipulates that when the heating temperature of the connection points of the transmission line conductors (parallel trench clamps, jumper drain plates, T-shaped clamps and equipment clamps) is not greater than 90 degrees Celsius or the relative temperature difference is not less than 70%, it is a general defect. ; When the h...

AI Technical Summary

Problems solved by technology

This traditional method has the following disadvantages: First, due to terrain and climate factors, the measurement personnel are far away from the measured equipment during measurement, and the temperature measurement equipment is absorbed by gas molecules such as water vapor, carbon dioxide, and carbon monoxide in the atmosphere, resulting in inaccurate temperature measurement data. precise

Second, due to the wide distribution of transmission lines with many points and wide areas, a large number of staff and temperature measurement equipment are required to fully cover the measurement, and the temperature measurement of transmission lines can only be carried out in good weather, resulting in the measurement Temperature work cannot be carried out in real time, resulting in blind areas and blank periods of temperature measurement work

Third, the temperature at the connection point of the transmission line conductor is also a long-term heating process. Regular temperature measurement cannot effectively detect temperature abnormalities. Once the temperature of the node is high, a blowout accident of the drainage line may occur, which brings great hidden dangers to the safe and stable operation of the transmission line

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