HFD reactor and resistor

[gtsolid]

Hi,
in my electrical test bench i notice the presence of those 2 devices. The reactor is 80kW and the resistor around 800W.
Can you explain what is their function? i think it's something related to dissipate some overload

 

[7anoter4]

Is your testing bench like this?

https://magnaflux.eu/EU-Files/Product-Data-Sheets/Equipment--Accessories/MAG40-PDS-Sep18.pdf