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Temperature Monitoring and Early Warning System for Key Points of Electrical Equipment
Classification:
Key words:
System function
Temperature sensors are arranged in key parts of electrical equipment that are easy to heat up, and the temperature and temperature rise changes of each point are monitored in real time. According to the judgment principle of different monitoring points with the same phase and different phases of the same monitoring point, the temperature and temperature rise changes of each monitoring point are evaluated hierarchically, hidden dangers of electrothermal accidents are found in time, and hidden faults are prevented from becoming manifest or even becoming accidents.
The system consists of a wireless passive temperature sensor, a data collector and a background management system (mobile phone APP can also be used) to visually display the monitoring information, evaluation information and early warning information of each monitoring point and monitored equipment.
Application Scenarios
▶Equipment clamps for through-flow electrical equipment;
▶Terminal head at each side of transformer;
▶Power distribution room busbar and wall bushing;
▶Switch cabinet breaker contact and knife switch moving contact;
▶Feeder and its branch connection points;
▶Cable joints and intermediate joints.
Temperature sensor
Technical performance and system indicators:
| Temperature measurement range:-40~125 ℃ |
Measurement accuracy: ± 0.5 ℃ |
| Temperature sampling frequency: 1~10s |
Wireless frequency: 433, 470MHz |
| Wireless transmission distance: ≤ 300 m (open distance) |
Working power: induction power |
| Installation method: binding type (non-invasive installation) |
Working current: ≥ 5A |
| Temperature sensing body size: 26mm * 22.5mm * 10mm |
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Data Collector
Technical performance and system indicators:
| Wireless Frequency: 2.4GHz/433MHz |
Number of wireless sensors: ≤ 240 |
| Wired communication: RS485, Ethernet, optical fiber |
Access quantity: ≤ 128 sets |
| Communication Protocol: Modbus |
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