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Introduction to DC charging pile transformer cooling system
The cooling system of a DC charging pile transformer is crucial for maintaining the normal operation of the transformer and extending its service life. Here are the six key components and functions of the cooling system:
Main component
Radiator
The radiator is a major component of the cooling system, typically made of aluminum or copper, which have high thermal conductivity. Radiators dissipate heat from the transformer oil by increasing the surface area.
Fans
Fans are used to force air flow through the radiator, accelerating the dissipation of heat. Fans can be fixed-speed or variable-speed, adjusting according to temperature changes.
Oil Pump
The oil pump circulates transformer oil, pumping it from the tank to the radiator and back to the tank, forming a closed-loop system.
Temperature Control Valve
The temperature control valve automatically regulates the oil flow, opening or closing based on the temperature changes of the transformer to optimize cooling efficiency.
Cooling Oil
Transformer oil serves not only as an insulator but also as a cooling medium. It absorbs heat generated by the windings and core and transfers it to the radiator.
Temperature Sensors
Temperature sensors monitor the operating temperature of the transformer and send data to the control system to adjust the operation of the cooling system, such as activating or deactivating fans and oil pumps.
The design of the cooling system must consider the thermal load of the transformer, environmental conditions, and efficiency requirements. An effective cooling system can prevent the transformer from overheating, ensure the reliability of power supply, and reduce maintenance costs. In DC charging piles, the cooling system typically needs to adapt to outdoor environments and withstand the impact of adverse weather conditions.
DC CHARGING PIlE SERIES
DC charging pile is an efficient charging facility for electric vehicles, which uses direct current (DC) to directly charge the vehicle battery, significantly reducing the charging time. Compared with traditional AC charging piles, DC charging piles are able to provide higher power output and can usually charge an EV to 80% of its capacity in 30 minutes, providing users with a convenient charging experience.
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