Vector frequency inverter, China Vector frequency inverter Supplier

Vector frequency inverter - Gozuk 2000

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frequency inverter products are ideal for environments with long operating hours and frequently changing load requirements. frequency inverters can be used with pumps in HVAC systems and wastewater treatment plants, as well as conveyors in warehouses and manufacturing facilities. Similarly, fans in chemical and pharmaceutical plants, as well as other production operations, can benefit from varying motor speed to match demand.

frequency inverters offer the greatest opportunity for energy savings when driving these loads, because horsepower varies as the cube of speed, and torque varies as the square of speed for these loads. For example, if the motor speed is reduced by 20 percent, motor horsepower is theoretically reduced by 51 percent. The actual energy savings may be less because of drive conversion losses.

Constant torque and horsepower loads are also candidates for frequency inverters, but the advantages are not as great. Constant torque loads represent 90 percent of all general industrial machines (other than pumps and fans). Constant horsepower loads are most often found in the machine-tool industry. When operated at full load continuously, a motor is up to 6 percent less efficient with a frequency inverter than with a standard drive. Look at the motor operating curve to determine the number of hours the motor is expected to operate at full load.
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Address: No.116 gongle road xixiang bao'an, Shenzhen, Guangdong, China, 518000
Tel: 8675528480239
Frequency inverters convert alternating current (AC) to direct current (DC), and then convert the DC back to AC at a frequency that will drive the motor at the desired speed. Although this makes the motor run less efficiently, the ability to respond to load variations reduces overall energy use. Without a frequency inverter, the motor can run efficiently at a single speed, but it may be running at a higher speed than needed. Variable voltage input (VVI)鈥攖his is the simplest type of frequency inverter. The output switching devices approximate a sine wave voltage for the motor by producing a series of square waves at different voltages. VVI drives use a large capacitor in the DC link to provide a relatively constant DC voltage to the inverter. Frequency inverter types and designs Three major designs are used, including variable voltage input, current source input and pulse width modulated. Hybrid and customized variation designs are also available.