Guys,
I just started a new job at a company in Charlotte NC that has been here for many years. The transformer feeding part of the plant is an old 460 volt delta without a neutral or ground. I have been researching and am seeing where people are saying that the newer VFD's don't like the Delta voltage. I have lost 6 Powerflex drives in two days, 3-1hp 40p's 2-3hp 40p's in one system and one 25hp pflx-70 on another for no apparent reason. I am looking at adding line reactors to try and help the issue but, I am wondering if anyone has any info on why this is happening or can explain a little to me so that I can understand what is happening and what to do. Never dealt with a Delta before so kinda scratching my head on this one.
Thanks in advance for any help,
Eli
I just started a new job at a company in Charlotte NC that has been here for many years. The transformer feeding part of the plant is an old 460 volt delta without a neutral or ground. I have been researching and am seeing where people are saying that the newer VFD's don't like the Delta voltage. I have lost 6 Powerflex drives in two days, 3-1hp 40p's 2-3hp 40p's in one system and one 25hp pflx-70 on another for no apparent reason. I am looking at adding line reactors to try and help the issue but, I am wondering if anyone has any info on why this is happening or can explain a little to me so that I can understand what is happening and what to do. Never dealt with a Delta before so kinda scratching my head on this one.
Thanks in advance for any help,
Eli