plumbing system

Frequency Drives For Controls

You must understand that Variable Frequency Drives for Controls is the type of motor control which drives electric motor through varying frequency as well as voltage that gets supplied to electric motor. The other names for this controller are adjustable speed drives, variable speed drives, the adjustable frequency drives, Microdrive, inverter, AC drives and more. Frequency is also related directly to motor’s speed. In some other words, faster is the frequency then faster these RPMs will go. If these application don’t need electric motor for running at full speed, then VFD can also be used for ramping down voltage and frequency for meeting requirements well of electric motor loads.

Frequency Drives for Controls online

Speed needs

As application of this motor speed of needs changes, the Variable Frequency Drives for Controls helps in turning up & down motor speed for meeting speed requirements. The very first stage of it is converter. This comprises of around 6 diodes that are similar in checking the valves used for plumbing system. They also allow current for flowing in one direction. This direction shown by arrow is in diode symbol. For instance, whenever “A” phase voltage is positive than the B or C phase of voltages, then this diode gets opened up and allows current for flowing in.

Reasons for needing variable frequency drive

When this B phase turns more positive than the A phase, then this B phase diode open and A phase one will be get closed. This is similar for 3 diodes on negative sides as well. Thus, one can get 6 current pulses as all these diodes opens up and get closed. This is known as the 6 pulse of VFD which is standard configuration for the present variable frequency drive. Well, there are several reasons for having the Variable Frequency Drives for Controls which includes as,

  • Reduces energy cost and energy consumption: It largely helps in reducing the energy cost. It allows all for matching well with speed of motor driven equipment to load needs. There are no other ways of AC motor control which can allow you in accomplishing it.
  • Optimizes system of motor control: They help in optimizing well motor control to 70%. Additionally, they help in improving the product quality & reduces the production cost
  • Increases production: It offers efficient speed to all application and helps in eliminating jerks on the startup which allows high through.

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