10 kVA Eaton UPS Teardown – Model PowerWare 9355
Test and teardown of a Eaton 9355 UPS (formerly the Powerware 9355). It is a three-phase, double-conversion online UPS. Output power ranges from 10-15 kVA in a changeover scenario as … Read More
Category: Power Supplies
Fluke Helios Plus 2287A, 1500 I/O Frontend, Teardown and Test
Teardown, cleaning and test of a Fluke Helios Plus 2287A Data Acquisition Frontend and 2181A Extender. The Frontend and extender features two Fluke 2280A-161 High Performance A/D Converter 2280A161 cards … Read More
Migatronic FocusStick 161E Stick Welder Teardown
A teardown of a Migatronic FocusStick 161E stick welder. I take apart and show the current paths of the system. This stick welder is adjustable from 20 to 160 Ampere. … Read More
Nokia Siemens 3G Flexi 2100MHz 50W Amplifier Circuit Analysis (Part 2 of 3)
Introduction I have here a circuit analysis of a 2100 MHz cellular amplifier from a UMTS basestation setup. The initial teardown video can be found in Nokia Siemens 3G Flexi … Read More
PFC part 11: 3 phase test
Finally the long awaited test happened (you can read all posts about the PFC here) We plugged it into the 3 phase outlet and it started up normally! When smashed … Read More
Don’t contact me, I’ll contact you
Another problem I have with the cabin heater testing (And the PFC testing ) is that the PFC is not designed to start up into a load. This isn’t a … Read More
Tesla Model 3 heater testing
I thought I’d better test the characteristics of the PTC elements in a scientific manner as opposed to just applying 750V DC from the PFC and seeing what happens. When … Read More
Tesla Model 3 cabin heater teardown
I needed a high power dummy load that was a bit more health and safety friendly than my bucket of immersion heaters. I investigated lots of possibilities until I eventually … Read More