The reason for choosing 400Hz is primarily due to weight; 400Hz generators are lighter, thereby saving fuel.
If the system frequency is high, the amount of copper and steel used in generators and transformers is reduced, resulting in lighter weight and lower costs. However, this is accompanied by increased inductive reactance of electrical equipment and reduced capacitive reactance, leading to increased losses and reduced transmission efficiency. Conversely, a lower frequency would increase the material and weight requirements for electrical equipment, as well as costs. Therefore, 50 and 60 Hz are suitable for general residential applications.
To reduce size and weight, high-frequency operation is required for aviation generators. Since the transmission lines on the aircraft are not excessively long, power loss is no longer the primary issue, making 400Hz an excellent choice. 36V aviation power supply, 400Hz frequency conversion power supply, 115/200V power supply, 27V DC power supply, 400Hz power supply, aviation power supply.
