ZFeng 900 Series 75Kw-T-P General Vector Variable Frequency Drive
The frequency converter is mainly composed of rectifier, filter,
inverter, braking unit, driving unit, detection unit, and
microprocessor unit. The core working principle is to adjust the
voltage and frequency of the output power supply by disconnecting
the internal IGBT (Insulated Gate Bipolar Transistor).
Specifically, the frequency converter first converts the input AC
power into DC power, and then converts the DC power into AC power
with controllable frequency and voltage for use by the electric
motor.
Core Functions
- Speed regulation function: The frequency converter can adjust the voltage and frequency of
the output power supply according to the actual needs of the motor,
achieve stepless speed regulation, and meet the precise
requirements of various production processes for motor speed.
- Energy saving function: By precisely controlling the speed of the motor, the frequency
converter can avoid wasting electrical energy when the motor does
not need to run at full speed, thereby achieving significant
energy-saving effects. For example, in square torque load scenarios
such as fans and pumps, the energy-saving effect of frequency
converters can reach 30% to 60%.
- Protection function: The frequency converter has multiple protection functions such as
overcurrent, overvoltage, overload, etc., which can ensure the safe
and stable operation of the equipment in abnormal situations,
effectively protecting the motor and frequency converter from
damage.
Purchase Suggestions
When choosing a frequency converter, enterprises should
comprehensively consider factors such as the characteristics of
production machinery, the required speed range, the accuracy of
static speed, and the requirements for starting torque. At the same
time, it is also necessary to pay attention to the power matching,
environmental adaptability, and compatibility with other devices of
the frequency converter.
If you have any technical questions or procurement doubts, please
feel free to contact us at any time.
