Long time since last tech related post! Today continued the test to find Argon drive power limits (see earlier tests here). This time I loaded drive’s internal AC to DC power supply with an old room heater while simultaneously measuring transmitted power from AC and DC lines.
The heater pulled 1.53 kW from drive HV DC bus for about 45 minutes continuously with only passive cooling of the drive. Temperatures were measured from multiple points of drive along PSU current path (components & PCB traces) to find out if anything is overheating. I’m happy to report that everything stayed relatively cool which means the drive is capable of at least 1.5 kW output continuously! The hottests parts inside were 8 Amp fuses which is easily helped by using larger fuses.