If you are easily confused by the term “medium voltage AC drives”, do not feel bad, seeing as you are probably not the only one. It is usually confusing terminology because it sounds like a technical term; however, it is really only marketing driven. From zero to 600 V [...] Continue Reading…
When compared to DC drives, AC drives cause very few problems. However, poorly designed applications do sometimes result in power line voltage distortions. These voltage distortions can also cause problems for other equipment connected to the same power lines, subsequently resulting in erratic operation of controls, dimming of lights, [...] Continue Reading…
Although new advances and technologies are nice, is it really necessary to replace all DC drives with AC drives? Should one not rather select the most appropriate motor and drive solution for your particular application? This is an important question being raised quite often about this topic. Both DC [...] Continue Reading…
EP Normand is one of the local suppliers of Parker Hannifin AC drives and DC drives used for industrial automation and OEM equipment. Our AC and DC drives cover every automation application need in the industrial plant. The AC drives that are available incorporate the latest technological advancements in [...] Continue Reading…
When an electric current is applied to a conductor, a magnetic field builds around that conductor. If another conductor is in close proximity so that the building magnetic field “cuts” through that conductor, a current of equal potential is produced with flow in the opposite direction of the original [...] Continue Reading…
It is of the utmost importance that you understand that the AC drive does not produce any torque; it does in fact not even produce one ounce of load moving torque. All the mechanical force that moves your equipment and all of the mechanical force that is produced by [...] Continue Reading…
The real action in an AC drive system takes place in the motor. This is really where it all happens. In order to fully understand an AC drive application, it is of the utmost importance to grasp how motors use electric power.
All loads moved by electric motors are really [...] Continue Reading…
The technological side of variable speed drives has improved rapidly over the past few years due to the enhancement of the AC drive and the increased capabilities of monitoring and diagnostic systems. This resulted in AC drives becoming the choice for paper machine drive installations and rebuilds in place [...] Continue Reading…
Replacement of Variable Speed Drives happens due to a number of different reasons. Find below a list of these reasons.
Existing equipment should be replaced with an AC Drives system when:
The existing DC motor nears the end of its lifespan;
Power factor and distortion are an issue, such as when the [...] Continue Reading…
AC drive controllers, commonly referred to as inverters, are generally more complex than its DC drive controller counterparts. This is due to the fact that AC drive controllers must perform two power section functions. The first of these is the conversion of the AC line power source to DC, [...] Continue Reading…
