Self-monitoring device for joint temperature of transmission line hardware monitors temperature changes of the line independently.

Transmission Line Fitting Joint Temperature Monitoring Device

I. Overview

Temperature monitoring of transmission lines has always been a key focus of smart grid monitoring. Since transmission lines operate under high load for a long time, once a line is built, it will remain energized and in operation until it ages and is retired, barring any accidents. 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 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 temperatures 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 the temperature rise but may also cause the problem of discharge to the ground at sag points of the line. To address this situation, Telcom has developed the Transmission Line Fitting Joint Temperature Monitoring Device.

II. Working Principle

The temperature measuring device at the front end of the Transmission Line Fitting Joint Temperature Monitoring Device can measure the temperature of line fittings and clamps. The recorded data is transmitted to the background administrator via wireless 4G signals for viewing, and the system can automatically analyze the data. If an abnormal temperature is detected, an alarm will be automatically sent, 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;

For the online temperature acquisition unit, it 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 is backward compatible), 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 Transmission Line Fitting Joint Temperature Monitoring Device allows 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 the temperature changes of key lines. It greatly contributes to smart grid monitoring. Its functions of real-time temperature monitoring and timely alarm for abnormal temperatures have been unanimously praised by customers in the industry. 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 Transmission Line Fitting Joint Temperature Monitoring Device during power outage, but the device itself allows installation without power outage, and the installation method can be flexibly selected according to on-site conditions. The device adopts contact temperature measurement with small error. Considering that strong current may interfere with the device, its shell and the conductor adopt an equipotential design, avoiding the problem of false alarms.

VII. Product Aliases

Online Line Monitoring Device, Line Temperature Monitoring System, Power Transmission and Transformation Equipment IoT Sensor, Temperature Sensing Device, Transmission Line Fitting Joint Temperature Monitoring Device, Conductor Fitting Temperature Measurement and Monitoring System

VIII. Product Model

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