I. Background

In daily life, various electrical devices, as long as they are connected to the power system and pass through a certain current, will generate a certain amount of heat, causing the temperature to rise. In the power system, many major accidents are caused by the intensification of overheating in electrical equipment. If the hidden dangers of electrical equipment overheating can be discovered in a timely manner, and maintenance or repair measures are taken promptly to eliminate fault risks, the operational accidents of the power supply system can be greatly reduced, and the reliability of the power supply can be improved. Therefore, how to timely discover and correctly analyze and judge the overheating parts of electrical equipment is extremely important.

II. Causes of abnormal temperature rise in electrical contacts

2.1. The field environment is more complex than laboratory tests, and long-term field operation exhibits a cumulative temperature rise effect.

2.2. The expansion effect of different materials at the joint varies. Under the influence and restraint of stress during high-temperature expansion, plastic deformation occurs slowly, causing a minute gap to form at the joint.

2.3. Temperature changes cause oxidation corrosion at the joints, increasing contact resistance.

2.4. Repeated movement of the contact tip, improper pressure on the connecting bolt, leading to deformation of the contact surface, reduction of the contact area, and increase in resistance.

2.5. The purity of the conductor raw materials is insufficient, causing the electrical conductivity of the conductor material to fail to meet the requirements.

2.6. During the processing, connection, and installation of busbars, inadequate treatment and insufficient flatness of the busbar contact surfaces reduce the effective contact area, increase the contact resistance, and generate heat.

III. Online temperature measurement of electrical contacts - What are the demand scenarios?

3.1 High-voltage switchgear

3.2 Low-voltage switchgear

3.3 Transformer

3.4 Distribution boxes, indoor cables, cabinet/indoor, etc.

3.5 Motor Temperature Measurement

3.6 Data Center

3.7 Energy storage container

 

IV. Ankor Wireless Temperature Measurement System Solutions

The Acrel-2000/T wireless temperature monitoring system can integrate temperature data from all temperature measuring devices at the user station. Utilizing computer technology, modern electronic technology, communication technology, and signal processing technology, it reads, analyzes, and processes the temperature data from the connected measuring devices, displaying it on a computer to achieve monitoring of all temperature nodes across the entire station. The system features an independent database (13774430992) that can record data, query data, query curves, and query reports, and includes functions such as high-temperature and over-temperature limit alarms, and alarm time queries. Online temperature monitoring by the wireless system can enhance equipment safety assurance, timely and continuously reflect the operating status of equipment, prevent the occurrence of safety accidents, and reduce the equipment accident rate. The user station does not require regular patrols, reducing manpower and resources, and achieves automated management.

4.1 System Diagram - On-site Wall-mounted Central Display Solution

4.2 System Diagram - On-site Wall-mounted Central Display Solution

4.3 System Diagram - Wireless Temperature Measurement System

In fields such as industrial production and power operation and maintenance, the stable operation of equipment is the core link in ensuring production continuity and safety. Temperature, as a key indicator reflecting the equipment's operating status, is directly related to the safety factor of the entire system through the timeliness and accuracy of its monitoring. The emergence of the Acrel-2000/T wireless temperature monitoring system by Acrel, with its powerful technical integration capabilities and comprehensive functional design, has brought a revolutionary change to temperature monitoring of on-site equipment for users. It has not only redefined the model of equipment safety management but also had a profound impact on industry development and social value.

V. Application Value of Ankor Wireless Temperature Measurement System Solutions

5.1 Fromthe perspective of equipment safety assurance, this system is like equipping the equipment with a "thousand-mile eye" and "wind-catching ears". By accessing the temperature data from all temperature measuring devices at the equipment layer within the station, it achieves 24/7, blind-spot-free monitoring of all temperature nodes across the entire station. Thisreal-time online monitoringmode completely changes the potential delays and oversights of traditional manual inspections, enabling it to timely, continuously, and accurately reflect the equipment's operating status. When equipment experiences abnormal situations such as high temperatures or overheating, the system's threshold alarm function will issue an early warning at the first moment, while simultaneously recording the alarm time, thereby buying valuable processing time for the staff13774430992and effectively avoiding safety accidents such as fires and explosions caused by equipment overheating, significantly reducing the equipment accident rate.

5.2 Inthe area of management mode innovation,traditional equipment temperature monitoring requires staff to conduct regular patrols, which not only consumes a large amount of manpower and resources, but also involves relatively high difficulty and risk in inspections.The independent database equipped in the Acrel-2000/T wireless temperature monitoring system features data recording and query functions. Staff can query historical temperature data, temperature change curves, and various reports at any time, providing a scientific basis for equipment maintenance and upkeep. Through in-depth analysis of this data, potential equipment failures can be predicted in advance, and targeted maintenance plans can be formulated, achieving a transformation from "reactive repair" to "proactive prevention," thereby truly realizing the automation and intelligence of equipment management.

5.3 Fromthe perspective of industry development and social value, with the wave of Industry 4.0 and intelligentization sweeping across the present, the requirements of enterprises for production efficiency and safety management are increasingly rising. The application of the Acrel-2000/T wireless temperature measurement system

VI. Case Studies

6.1 A Certain Biomass New Artificial Silk Projec

6.2 Project of 10kV Distribution for XXX

6.3 XXXMetro Lines 7 and 8 Power Supply Engineering

6.4 XX Semiconductor 20kV Distribution Project

6.5 XXXSolar Energy Technology 10kV Distribution EngineeringVII. ConclusionElectrical equipment overheating is the "silent killer" of power systems. Abnormal temperature rises caused by issues such as joint oxidation, material defects, and installation processes can evolve into electrical safety accidents at any time. The Acrel-2000/T wireless temperature monitoring system by Acreli collects real-time temperature data from all nodes to build a "monitoring-warning-analysis" closed loop, providing 24-hour, comprehensive protection for critical scenarios like high-voltage cabinets, transformers, and energy storage equipment, with a high-temperature alarm accuracy of ±1°C. Its independent database enables temperature curve traceability and hidden hazard prediction, driving operations and maintenance from "reactive repair" to "proactive prevention." It has been successfully applied in scenarios such as semiconductor factories, rail transit, and biomass power generation, reducing equipment accident rates by over 60%, and writing a new chapter for power safety with intelligent data!

AcrelSystem Solution Comprehensive Demo Platform. Friends interested can log in to the backend to check it out!

Website: http://cloud.acrel.cn

Username : acrel      

Password: 123456