input/output reactor for frequency conversion speed regulation; It is because the inverter is often subjected to the impact of inrush current and surge voltage in the process of driving the inverter motor operation governor, which will seriously damage the performance and service life of the inverter and the motor, so it is necessary to install an input reactor in front of it to press the surge voltage and inrush current, improve the power factor of the input power supply, maintain the inverter and the motor, extend its service life and prevent harmonic disturbance, together because the inverter and the motor are speed regulated by frequency conversion. Therefore, in the process of use, high harmonics and waveform distortion often occur, which will affect the normal use of the equipment, for this reason, an output reactor must be installed in the output to filter out the harmonic voltage and harmonic current, and improve the quality of the power grid.
The input/output series reactors are all professional manufacturers, using high-quality imported silicon steel sheets, refined by advanced technology, with small size, low temperature rise, no sound and other characteristics.
They are located between the input/output side of the inverter and the traction motor, close to the inverter device. Its main effect is the filtering effect, pressing the inrush current of the input side circuit to weaken the overcurrent impact of the power supply voltage imbalance on the inverter; Generally, the distance between the inverter and the motor is more than 100 meters, and it is recommended to install an output communication reactor. Because the output side of the inverter generally contains more higher harmonics. When the motor and the inverter are far apart, because there is a large distributed capacitance in the cable wire, a certain harmonic may resonate in the circuit, which will cause great damage to the insulation performance of the motor, and the motor will be damaged for a long time. In addition, because the line is long, a large leakage current will occur, which will cause frequent maintenance and shutdown of the inverter.
If there is no reactor installed in these inverters with disturbance sources, it is easy to disturb the PLC and touch screen, disturb the photocoupler and cause the equipment to fail to operate normally.
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