Variable Frequency Drives Versus Normal Starters in Driving Electric Motors, Options to Energy Efficiency...,

Title

Introduction:

Variable Frequency Drives Replaces Normal  Starters , DOL and Star-Delta Efficiently and Save Energy nearly least 20% .

What is Variable Frequency Drives ( Motor Stater)?

Variable Frequency Drive Short Form VFD is a Electronic device which control the RPM (Rotations/Revolutions Per Minute) , Torque of an Electric Motor with help of changing Output frequency and Voltage supplied to Motor.

Why is Variable Frequency Drive Important

Variable Frequency Drive Is important because of its smooth functionality during starting of Motor with a precision control of Output power to Motor . 

      With a normal DOL stater the Motor starts at high speed with inrush current . Comparing with DOL starter the VFD start with a smooth Start with Frequency and variable Voltage and saving Energy with about 20% to 30%. example of usage with Air / Vacuum Compressor, High Pressure Pumps(Water Treatment Plants), Conveyors..,

      Advantage of using VFD ( short form of Variable Frequency Drive ) have many inbuilt  safety features to Motors when Overloading , Over Heating , Input Over Voltage and Under Voltage Protection.

      Because of smooth run of Motor, the mechanical Stress, Vibrations and overheating are less, increase in durability of Motor.

     Many Industries need variable RPM in different conditions, So VFD can do.., 

Industries Like Automobile Powder Coating to regulate Temperature From Heat Exchanger in place of Damper, VFD do..,  

Main Components of VFD.

VFD built with major three important parts, 

1 The Rectifier 

Rectifier Converts Input AC ( Alternative Current ,50/60 Hz) Indian standard is 50Hz , supply to DC ( Direct Current ) using Diodes

2 DC Bus 

 The DC Bus carries the Capacitors for filter AC Ripples  and Output Chock to smooth the flow of current to Load Side.

3 Inverter Section

The Inverter converts DC to AC Output with precise OUTPUT Frequency and Regulated Voltage accordance with  Electronic Controller's inbuilt settings/parameters . 

Advantages of Variable Frequency Drive

   First comes Electricity Saving from 20% to 30% 

   Then Protections and Safety.

   Soft Start Of Motors,  Avoid Inrush Current.

   

Applications / Uses

Air/ Vacuum Compressors,

High Pressure Pump for Water treatment Plants,

Conveyor Applications ,

Automobile/Domestic powder Coating Units in place of Dampers...,

Frequently Asked Questions (FAQ)

What is VFD used for?

VFD is used for Motors .

Conclusion

Every Industry and Domestic circle use of AC Motors are necessary to convert Electrical Energy to Mechanical /Thermal Energy ( Convert One Form Energy To Another Form Energy ), spending high cost in Electricity and product break out due to Heat , Vibrations , Mechanical stress .

  And My Conclusion is with the use of Variable Frequency Drive ( VFD ) in place of Normal Starters Saves Energy , Safety , Protection with Mechanical Stress , Vibration and also Heat.

Tag Key Words

• Variable Frequency Drive

• VFD Working Principle

• Motor Speed Control

• Industrial Automation

• Energy Saving Technology