Online uređaj za praćenje temperature naponskih stezaljki

Online temperature monitoring device for tension clamps

I. Overview

Transmission lines, as equipment carrying strong current 24 hours a day, maintain a stable temperature. In the past, most old wires had a temperature limit of 70 degrees Celsius (this limit has been raised now). Considering the influence of the external environment (such as high temperature in summer), the line itself can operate normally exceeding the temperature limit for a short time. However, if the line operates in a high-temperature state for too long, problems such as excessive sag or even fusing may occur. In addition, short circuits caused by aging of line hardware can also cause the line temperature to rise sharply, instantly exceeding its carrying temperature limit, resulting in significant economic losses. To enable operation and maintenance personnel to observe the temperature changes of the line in real time, Telcom has developed the Online temperature monitoring device for tension clamps.

II. Working principle

The temperature measuring device at the front end of the Online temperature monitoring device for tension clamps can measure the temperature of line hardware and clamps. The recorded data is transmitted to the background administrator via wireless 4G signal, and the system can automatically analyze the data. If an abnormal temperature is detected, an alarm will be sent automatically, which is very convenient for staff to obtain information in time and go to the site for investigation.

III. Functional features

Supports access of 24-channel temperature data;

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

Has an automatic collection function, which automatically collects the temperature of wires and hardware at set time intervals;

For the online temperature acquisition unit, it has the functions of collecting power supply voltage, working 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 operators can be selected according to on-site conditions

4. Working voltage: DC12V

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

6. Supports access of 24-channel temperature data

7. Working line voltage: ≥110kV

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

V. Postscript

The Online temperature monitoring device for tension clamps eliminates the need for operation and maintenance personnel to go to the site to measure line temperature, allowing them to remotely monitor the temperature changes of multiple lines in real time at the same time. The device transmits alarm information via wireless network communication, so that staff do not need to regularly check for abnormal temperature data frequently, which is highly efficient. The contact temperature measurement method of the device reduces the probability of false alarms, and it has strong heat resistance, so it can work normally even in high-temperature environments. The device meets the technical requirements of the State Grid for such products, and has been put into use in many regions such as Sichuan, Hainan and Liaoning.

VI. Installation suggestions

The device can be installed without power outage. Generally, temperature sensors need to be installed at both ends of a section of line (between two iron towers), and the configuration can be adjusted according to the number of lines. All measured data can be centrally sent by the same host.

VI. Alternative product names

Online temperature monitoring device for tension clamps, Online temperature monitoring device for conductor, Online temperature monitoring device for transmission lines

VII. Product model

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