Just for S&Gs I toured the plant I'm working at today and took some pictures of various VFD and servo installations to illustrate the common use (or lack thereof) of input reactors from various manufacturers around the world and from various dates of manufacture.

#1 Beumer palletizer:
-made in Germany, circa ~2010
(1) 50kW servo with input sine filter.
(2) 2kW VFD, no input reactors or filters

https://www.cnczone.com/forums/attac...d=457256&stc=1 https://www.cnczone.com/forums/attac...d=457258&stc=1

#2 Wulftec stretch wrapper
-made in Canada, 2020
(7) 1.5kW VFDs
(1) 5kW VFD
(0) reactors or filters

https://www.cnczone.com/forums/attac...d=457260&stc=1

#3 Windmoller & Holscher bagger machine
-made in Germany, circa ~2010?
(4) servo drives
(0) reactors or filters

https://www.cnczone.com/forums/attac...d=457268&stc=1

(Those are transformers up top for resistive heating strips)

#4 Windmoller & Holscher bagger machine
-made in Germany, circa 2019
(6) servo drives
(2) VFDs
(0) reactors or filters

https://www.cnczone.com/forums/attac...d=457274&stc=1
(Same story with the transformers up top. And there are two tiny input filters beside the transformers, these are for the resistive heater controllers)

#5 Windmoller & Holscher palletizer
-made in Germany, circa 2019
(5) sub-10kW servo drives, no filters or reactors
(1) 50kW servo drive with reactor and sine filter

https://www.cnczone.com/forums/attac...d=457280&stc=1

#6 Lachenmeier hooder
- made in Denmark, 2020
(2) VFDs
(0) reactors or filters

https://www.cnczone.com/forums/attac...d=457282&stc=1

Hopefully this helps illustrate the difference between the real world and the world of whitepapers and textbooks.