Since there are no comments on this so far, I thought I would put my 2
cents in.....It seems to me that motor drives would be in group 1, keeping
in mind the first paragraph of appendix A where it says "for testing
purposes the equipment is to be defined in terms of the purpose for which
it was designed" Also, I believe the power drive system product family EMC
standard, EN 61800-3:1996 uses limits similar to EN 55011 group 1(I don't
have this standard in front of me so please correct me if I'm wrong.)
I'm also curious why someone would want want to be in group 2 because this
requires an additional magnetic field (table 5 of EN 55011) test down to
150khz that could be difficult for Power inverters.
Bruce Fagley
Sr. Specialist, in-situ EMC
TUV Rheinland
Newtown CT.
203-426-0888 ext 119
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