What is Stationary Air Compressor Voltage Frequency?

What is Stationary Air Compressor Voltage Frequency?

What is the air compressor voltage frequency? Voltage: refers to the stationary air compressor voltage value between two contacts, or the power supply value. For example, our electric lamp is gene...

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What is the air compressor voltage frequency?

Voltage: refers to the stationary air compressor voltage value between two contacts, or the power supply value. For example, our electric lamp is generally 220V AC, the general motor is 380V (power), and the high voltage has 10KV and so on.
Frequency: refers to the number of pulses of AC power for a certain period of time. China’s power supply standard is 50Hz. Email:info@fntcompressor.com

Stationary air Compressor Frequency and voltage relationship

The torque of stationary air compressor asynchronous motor of is generated by the interaction between the magnetic flux of the motor and the current flowing through the rotor. At the rated frequency, if the voltage is constant and only the frequency is reduced, the magnetic flux is too large. And the magnetic circuit is saturated. The motor will be burned. Therefore, the frequency and voltage should be changed in proportion. That is, the frequency of the inverter is controlled while changing the frequency. So that the magnetic flux of the motor is kept constant to avoid the occurrence of weak magnetic and magnetic saturation. This type of control is mostly used for energy-saving inverters such as fans and pumps.

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The voltage V also decreases proportionally as the frequency decreases. The proportional relationship between V and F is predetermined in consideration of the characteristics of the motor. Usually, there are several characteristics in the memory device (ROM) of the controller, which can be selected by a switch or a dial. When the frequency is lowered to completely reduce the voltage proportionally. Since the AC resistance becomes small and the DC resistance does not change, the torque generated at the low speed tends to decrease. Therefore, given V/F at low frequencies, the output voltage is increased somewhat in order to obtain a certain starting torque. Which is called an enhanced starting. It can be implemented in various ways, such as an automatic method, a V/F mode, or a potentiometer adjustment. If you need high configuration cheap rotary screw air compressor for sale, please contact us.

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