With the development of the power system, the maintenance of power equipment is becoming more and more heavy, conductors and conductor fittings as an important part of the transmission line, its temperature monitoring is important for the prevention of faults and to protect the power supply. In the operation process, due to the current through the wire will produce Joule heat, so that the temperature of the wire rises. When the temperature of the conductor exceeds its permissible temperature, the mechanical strength of the conductor decreases, which may lead to serious accidents such as conductor strand breakage and wire breakage, affecting the continuity and stability of power transmission. For example, in hot weather or under high load operation, the conductor heat dissipation is difficult and the temperature is easy to rise.

Regular patrol temperature measurement, special patrol temperature measurement and other methods can not reflect the temperature rise of the line in a timely manner, in the high temperature environment or line overload condition, still regularly occurring line overheating caused by power accidents.

Transmission line wire fittings online temperature measurement device composition

The Transmission Line Online temperature measurement device for conductor fittingsDX-WPS100-CW consists of two major parts: monitoring terminal and background software. The monitoring terminal includes a collection unit, monitoring sub-station, server and solar panel, in which the collection unit is installed on the tension-resistant wire clamps and wires, and the monitoring sub-station is deployed on the power tower, which is responsible for receiving the data from each collection unit and sending the collected data to the remote server through wireless network.

The background has the functions of data storage, historical data query, report generation, curve drawing, etc., and can analyze the trend of the wire temperature status.

Principle of operation and applications

Transmission line wire fixture on-line temperature measurement device< Adopting the combination of wire temperature measurement and clamp temperature measurement, a wire temperature sensor is installed on the wire under test, and 1/2/4 clamp temperature sensors are installed at the clamps corresponding to the wire, so that the temperature data of the wire and fixture are collected in real time by the clamp temperature sensors and passed through the 4G/5G/OPG/HYDROBONT temperature sensor, which can be used to measure the temperature of the wire. 4G/5G/OPGW fiber optic network will monitor the data real-time transmission to the monitoring center, data over the limit of the automatic alarm. When the collection terminal to judge the wire clip temperature and adjacent wire temperature difference reaches the following defects will change the corresponding sensor collection, upload frequency.

The application of this device can make up for the shortcomings of manual inspection, reduce the cost of manual maintenance, realize the sign type alarm, and nip accidents in the bud.

Technical characteristics

1、Industrial-class products: the device adopts double-layer stainless steel waterproof shell, suitable for a variety of harsh climatic environments;

2, high-precision sensors: data acquisition unit using high-precision wire clip temperature measurement sensor, measurement, stable and reliable, does not affect the normal operation of the line;

3, flexible communication mode: support 4G/5G/OPGW fiber optic and other communication networks to adapt to different field environments, and communication with the master station can be a dedicated VPN channel;

4, power management features: dynamic power management strategy to meet the requirements of power saving, support for battery overcharge, overdischarge, overcurrent and other protection functions.

Through real-time monitoring of the temperature of the conductor, once the temperature is found to be abnormally high, the electrician can take timely measures, such as adjusting the load, strengthening heat dissipation, etc., to prevent the occurrence of overheating faults and to ensure the safe operation of transmission lines.