Advantages of a VFD – The main reason/advantage for implementing a Variable Frequency Drive into a system is to save money by reducing the overall system energy being consumed. Along with saving money in energy reduction here are some more advantages of using a Variable Frequency Drive in a system.
VFD is able to control the processes of the system better, giving the operator a bypass option in the case of an inverter failure.
System starts up softer than normal, meaning it will decrease the average 6 to 7 up to 20 times inrush current during start up.
Saves money on the electricity costs of a system.
By better controlling a motor’s speed, life of V-belt and or coupling devices is increased.
No appurtenance loss for using this control device in a system.
Device can include a breaking feature (Check with VFD manufacturer)
Reduces the costs of a system eliminating the need to buy an antirotational device. (Check with VFD manufacturer)
Even though the motors may ultimately be dielectrically compatible with fast switching IGBT VFDs with no external protection, the system EMI noise may still be an issue. Proper grounding, shielding and panel layout techniques prior to installation are shown to solve most VFD EMI problems encountered. The Common Mode Choke was shown to be an external noise solution that virtually eliminates any concern for system EMI problems.
