Hidden Fire Hazards Cannot Hide: Acrel's Wireless Temperature Monitoring Solution Equips Critical Electrical Equipment with Smart Monitors

 

A seemingly insignificant loose screw in the electrical cabinet could quietly trigger a costly production halt, yet Acrel's wireless temperature monitoring system had issued an early warning 100 days in advance.

Power system safety experts indicate that up to 35% of electrical fires originate from overheating failures at equipment connection points. These latent hotspots pose significant risks, as traditional manual inspection methods cannot provide round-the-clock, precise temperature monitoring.

When the temperature of key equipment such as distribution cabinets, transformers, and high-voltage switches is abnormal, it often indicates issues like loose connections, poor contact, or overload.

 

01 Pain Point Scanning: The 'Invisible Killer' of Electrical Safety

In power systems and industrial sectors, equipment overheating is a primary cause of failures and even fires. Traditional temperature measurement methods, such as manual inspection using handheld infrared thermometers, suffer from significant monitoring blind spots, discontinuous data, and the inability to provide real-time warnings.

Research data from the power industry indicates that over 60% of major electrical accidents are preceded by abnormal temperature rise warnings, yet these often go undetected, leading to catastrophic outcomes.

Key components of high-voltage switchgear, such as contacts, busbar connections, and cable joints, are prone to overheating due to prolonged exposure to high currents, material aging, and increased contact resistance. These "hot spots" are typically located inside the equipment or in enclosed spaces, making them difficult to monitor with conventional methods.

For places with high demand for power supply continuity, such as data center, hospital, rail transit, petrochemical industry, any unexpected power outage caused by overheating may cause incalculable losses.

 

02 Applications of Panoramic Wireless Temperature Measurement

The core advantage of wireless temperature measurement technology lies in its features of no wiring, flexible installation, and real-time online operation, which makes it uniquely valuable in various scenarios.

In power distribution systems, temperature monitoring of critical components such as high-voltage switchgear contacts, busbar joints, and cable connections serves as the primary defense against accidents. This is particularly true for fully enclosed switchgear like medium-voltage switchgear and ring main units (RMUs), where traditional temperature measurement methods are nearly impossible to implement.

In the new energy sector, equipment such as photovoltaic combiner boxes, wind power converters, and energy storage battery compartments operate under harsh outdoor conditions for extended periods, with temperature rise issues caused by loose connections and oxidation being particularly prominent. The wireless temperature measurement system can adapt to a wide temperature range of-40°C to +125°C.

Temperature monitoring of bearings, windings, and terminal blocks in industrial equipment such as motors, transformers, and high-current switches is crucial for preventing equipment damage and optimizing maintenance cycles. Large-scale equipment in industries like steel, chemicals, and mining often requires monitoring dozens or even hundreds of temperature measurement points.

Temperature monitoring of critical components such as distribution boxes, bus ducts, and data center cabinets in intelligent buildings and infrastructure is a vital component for ensuring daily operational safety. Commercial complexes, transportation hubs, hospitals, and other densely populated areas have particularly stringent requirements for electrical fire prevention.

 

 

03 Decoding the Solution: Acrel's Core Advantages in Wireless Temperature Measurement

Acrel Electric's wireless temperature measurement solution is a complete system integrating sensing, transmission, analysis, and early warning.

The system employs a low-power wireless temperature sensor designed for direct installation on the surface of the measurement point. Temperature data is transmitted to the receiving terminal via radio frequency technology. The sensor is compact in size and can be directly mounted on high-voltage live objects, achieving electrical isolation with a safety rating compliant with the CAT IV-600V standard.

The core components of the solution include: ATE-series wireless temperature sensors, ATC-series transceivers, and a monitoring software platform. The sensors cover a measurement range of-40°C to +125°C with an accuracy of ±1°C, and the battery life can exceed 5 years.

The system supports multiple networking modes, including wireless communication technologies such as 4G, WiFi, and Ethernet, etc., enabling flexible configuration based on the field environment. The receiving device uploads data to the local monitoring host or cloud platform, facilitating centralized management, real-time display, and intelligent analysis of temperature data.

Acrel's wireless temperature measurement solution emphasizes easy deployment and scalability. New monitoring points require no wiring, only sensor installation for system integration. This feature makes it particularly suitable for retrofit projects and scenarios with dispersed monitoring points.

 

04 Technological Breakthrough: The Leap from Monitoring to Prevention

The Acrel wireless temperature measurement system is not merely a data acquisition tool, but also a comprehensive preventive maintenance platform. The system can establish equipment temperature models based on historical data and identify abnormal temperature rise patterns through artificial intelligence algorithms, achieving a transition from 'post-event alarms' to 'pre-event warnings'.

The platform provides multiple early warning mechanisms, including threshold alarm, temperature rise rate alarm, and temperature difference alarm. When the temperature at the monitoring point exceeds the set threshold, or the temperature rise rate is abnormal, or the temperature difference between different phases of the same device is excessively large, the system will immediately issue an alarm via SMS, APP push notification, or audio-visual alerts.

The system also provides advanced features such as temperature trend analysis, equipment health assessment, and O&M report generation, helping users extract valuable insights from massive temperature data, optimize maintenance plans, and reduce O&M costs.

In large-scale group enterprises with multi-site management, Acrel's system supports hierarchical permission management, electronic map display, and mobile terminal access, enabling centralized monitoring and unified scheduling across regions.

The data center operations supervisor opened the mobile app, where real-time temperature data of all critical cabinets were clearly displayed. A month ago, the system had flagged an abnormal temperature at the B-phase busbar connection point of Cabinet No.3. After inspection, it was confirmed that the bolts were loose, and the issue was promptly resolved. Now, this wireless temperature monitoring system acts as an unrelenting "electronic sentry," safeguarding thousands of electrical connection points around the clock.