Netherlands-based Delta Elektronika has added a 210V variant to its SM15K family of 15kW bi-directional power supplies. Fitting into a 3U rack slot and called SM210-CP-150, its output is bounded (curve below) by 15kW maximum power, +210V maximum voltage and ±150A maximum current. Within its range it can output:  210V, ±71.5A 150V, ±100A 100V, ±150A Up ...

This story continues at 15kW 210V variable PSU can source or sink up to 150A

Or just read more coverage at Electronics Weekly