The temperature control system of the Dry type transformer plays a vital role in ensuring its safe operation. The following is a specific analysis of how the system ensures safe operation, including point-by-point representation and induction, and reference to relevant figures and information in the article:
1. Accurate temperature monitoring
High-precision sensors: Dry type transformers usually use high-precision sensors such as Pt100 thermistors to monitor the temperature of windings and cores. These sensors can accurately measure temperature changes and transmit signals to the control system.
Real-time monitoring: The system can monitor the operating temperature of the transformer in real time to ensure rapid response when the temperature is abnormal.
2. Intelligent temperature control strategy
Automatic fan control: When the winding temperature reaches a preset threshold (such as 110°C), the system automatically starts the fan for cooling. When the temperature drops to a safe range (such as 90°C), the fan automatically stops to save energy and reduce noise.
Over-temperature alarm and tripping: If the winding temperature continues to rise and reaches a higher threshold (such as 155°C), the system will output an over-temperature alarm signal. If the temperature continues to rise to a dangerous level (such as 170°C), the system will send an over-temperature trip signal to quickly trip the transformer to prevent equipment damage or fire and other serious consequences.
3. Comprehensive protection measures
Protective housing: Dry type transformers usually use IP20 or higher protection level housings to prevent solid foreign objects and small animals from entering, thereby avoiding the occurrence of malignant faults such as short circuits.
Overload protection: The system can monitor the load of the transformer and take corresponding protective measures when overloaded to prevent overheating and damage to the equipment.
4. Regular maintenance and inspection
Regular inspection: Regularly inspect and maintain the temperature control system, including checking the working status of sensors, control circuits, fans and other components to ensure their normal operation.
Cleaning and maintenance: Regularly clean the housing and display of the temperature controller to prevent dust and dirt from affecting the performance of the equipment.
In summary, the temperature control system of the Dry type transformer ensures the safe operation of the transformer through precise temperature monitoring, intelligent temperature control strategies, comprehensive protection measures and regular maintenance and inspection. These measures effectively prevent equipment damage and safety accidents caused by excessive temperature, and improve the stability and reliability of the power system.
