A wtp consists of 6blowers(each 30kw) with 4 on duty n is driven by VFDs. VFD data sheet shows 48% THDi. Will this harm upstream transformer?

wtp had other motors n total load iskw including blowers. the transformer also feeds irrigation pumpset (2xkw duty n1xkw standby) other major load includekw dewatering machine and3hp potable water pump plus site lighting etc. total connected load amounting to aboutkva. thekva transformer's safe loading limitkva is reached. does harmics due to VFDs harm the transformer??