Pwablo
Active member
- Joined
- Jan 16, 2024
- Messages
- 34
- Reaction score
- 41
Thanks Stevie for the information. I was thinking about cables and screening today, although the runs from the inverter to the EMC filters would be very short. I was considering the implications of having unscreened cables and if this would produce detectable amounts of RFI. I also noticed that Schaffner make filters specifically with PE linked Capacitors for installation in medical environments, and wondered what benefits these brought over the ones without PE linked capacitors?Hi ,i know this may not have any bearing on the above ,but we fitted loads inverters forAHU fan motors, pumps etc .Replacing star/delta starters . Mostly in hospitals ,so didn't want spurious RF in a hospital environment.
Where possible we kept the inverter as close to the motors as possible, as 3 phase mains supply was alway unscreened, but from the inverter to motor, was wired in screen cable ,and the screen cable was specifically required to be SY cable and glands to prevent radio interference .
These were Danfoss Vlt FC 301Inverters, ABB ACS550 and LS 100 series . Google the installation instructions and they explain in detail how cable screen is to be terminated .
Cheers Steven
I will do a bit of research into the cables you mentioned. Thanks again.