Necessity of Pressure Monitoring During the Transportation of Large Transformers

Nitrogen is generally filled at a certain pressure inside the tank during the transportation of large transformers to maintain the integrity of the internal structure. Excessively low internal pressure may cause tank deformation, which will affect the quality and service life of the transformer. In response to this application, Toprui has launched a wireless pressure sensor suitable for transportation scenarios. It can monitor the internal pressure of the tank in real time and track the vehicle’s real-time location. When the internal pressure drops below the set value, an alarm will be triggered to notify drivers and back-end managers to refill nitrogen in a timely manner and balance the tank pressure.

1. Prevention of Internal Damage: Large transformers contain complex electrical components and insulating materials, which are highly sensitive to pressure changes. During transportation, abnormal pressure (either excessively high or low) inside the tank may damage the internal electrical connections, insulation layers, and other components of the transformer, thereby affecting its performance and service life.
2. Avoidance of Gas Accumulation: Gas accumulation inside the transformer tank during transportation will increase the internal pressure. Such gas may originate from factors such as volatilization of insulating materials and poor sealing. Monitoring the internal pressure enables timely detection and handling of these issues, preventing gas from causing damage to the transformer.
3. Impact of Altitude Changes: When a transformer is transported from a low-altitude area to a high-altitude area, the internal pressure of the transformer tank will change correspondingly due to variations in atmospheric pressure. Monitoring the internal pressure helps adjust the transportation plan to ensure the safe transportation of the transformer across different altitude regions.
4. Influence of Temperature Changes: Temperature changes affect the volume and pressure of the oil inside the transformer. In high-temperature environments, oil expansion may lead to an increase in internal pressure; in low-temperature environments, oil contraction may result in a decrease in internal pressure. Monitoring the internal pressure allows for timely detection and response to these changes, preventing safety hazards caused by abnormal pressure.