The temperature monitoring device for power transmission line fittings independently monitors the temperature changes of the line.

Temperature Monitoring Device for Power Transmission Line Fittings and Joints

I. Overview

Temperature monitoring of power transmission lines has always been a key focus of intelligent power grid monitoring. Since transmission lines operate under high load for a long time, once a line is built, it will generally remain energized and in operation until it ages and is retired, barring any unforeseen circumstances. When clamps, fittings, and joints age over time due to factors such as wind and sun exposure, their resistance increases, causing them to operate at relatively high temperatures. Therefore, temperature monitoring of transmission lines is necessary. In some regions of China, where surface vegetation is sparse, transmission lines are directly exposed to sunlight during hot summers, and their temperature may exceed the line's designed carrying temperature in a short period. This not only shortens the service life of line fittings and clamps due to increased temperature but may also cause issues such as low sag points leading to ground discharge. To address this situation, Telincon has developed the Temperature Monitoring Device for Power Transmission Line Fittings and Joints.

II. Working Principle

The temperature measuring device at the front end of the Temperature Monitoring Device for Power Transmission Line Fittings and Joints can measure the temperature of line fittings and clamps. The recorded data is transmitted to background administrators via wireless 4G signals for viewing. The system can automatically analyze the data and send an alarm message when an abnormal temperature is detected, allowing staff to promptly receive the information and rush to the site for inspection, which is very convenient.

III. Functional Features

Supports access to 24 channels of temperature data;

Has the function of collecting image information near the transmission tower;

Equipped with an automatic collection function, which automatically collects the temperature of conductors and fittings at set time intervals;

The online temperature acquisition unit has the functions of collecting power supply voltage, operating temperature, etc.;

Has the function of data rationality check and analysis, automatically identifying and eliminating interference data;

Can cyclically store temperature status data for at least 30 days;

Has the functions of identity authentication and remote program update;

IV. Technical Parameters

1. Temperature measurement range: -40℃ ~ +120℃; ±0.5℃

2. Power supply system: Solar energy + battery

3. Communication requirements: Supports wireless network communication (supports 4G and backward compatibility), adapts to China Telecom, China Unicom, and China Mobile, and the operator can be selected according to on-site conditions.

4. Operating voltage: DC12V

5. Monitoring unit: Monitoring method and principle: Contact temperature measurement, platinum resistance

6. Supports access to 24 channels of temperature data

7. Operating line voltage: ≥110kV

8. Clamp ambient temperature: -40℃ ~ 70℃

V. Postscript

The Temperature Monitoring Device for Power Transmission Line Fittings and Joints enables operation and maintenance personnel to remotely monitor the temperature changes of multiple lines in real time simultaneously, eliminating the need to regularly visit the site to record and monitor temperature changes of key lines. It greatly contributes to the intelligent monitoring of the power grid. Its functions of real-time temperature monitoring and timely alarm for abnormal temperatures have been widely praised by customers in the industry, and it has been put into use in many regions such as Gansu, Hainan, Shaanxi, and Shandong, shouldering the important task of power grid security protection.

VI. Product Advantages

It is recommended to install the Temperature Monitoring Device for Power Transmission Line Fittings and Joints during power outage, but the device itself supports installation without power outage, and flexible selection can be made according to on-site conditions. The device adopts contact temperature measurement with small error. Considering that strong current may interfere with the device, its housing and conductors adopt equipotential design, avoiding false alarms.

VII. Alternative Product Names

Online Line Monitoring Device, Line Temperature Monitoring System, IoT Sensor for Power Transmission and Transformation Equipment, Temperature Sensing Device, Temperature Monitoring Device for Power Transmission Line Fittings and Joints, Conductor and Fitting Temperature Monitoring System

VIII. Product Model

TLKS-PMG-TP Mr. Wang   1/3/6/8/2/3/5/0/0/2/9/