I scavenged a old 4 ton stone polisher machine for the best components and got off with a 3 kW AC servo motor + drive, 4+0.55 kW variable frequency drives. In this video I try to make the servo motor run despite missing a control panel that was gone from the machine. Teardown of the […]
3 kW AC Servo Drive From a 4 Ton Stone Polisher – Isolation, Day 32 Read More »
A teardown of a Kjellberg CUTi 31 Plasma Cutter with a power rating of 10 kVA. Made for cutting in 25-30 mm steel. Connecting voltage (V): 3x 400VAC Connecting power (kVA) 10.4 Mains fuse, slow(A) 16 Open circuit voltage (V) 240 Cutting current (A) 20…70 Duty cycle 70A/35% or 50A/100%
10 kVA Kjellberg Plasma Cutter CUTi 31 Teardown Read More »
Teardown of a large solar inverter. The ABB TRIO 20 kW inverter is a three-phased inverter built around many TO-247 IGBT & Schottky diodes. Three-phase string inverter, 20000Wac, 2 MPPT, 4 DC inputs for each MPPT, RS485 communication interface, IP65 (NEMA4x) environmental protection degree, integrated DC and AC disconnect switch, DC and AC surge arrester
ABB TRIO 20 kW Solar Inverter – Unboxing and Teardown Read More »
Teardown of the Siemens Polyphos 30 X-ray inverter systems control panel including computer, safety functions, HMI and high voltage inverter circuit. Be sure to check out part 1 about the X-ray head and part 2 about the collimator and image plate. Discussion of teardown and more pictures: https://highvoltageforum.net/index.php?topic=523.0
Siemens Polyphos 30 X-RAY Inverter and Control Panel Teardown (Part 3 of 3) Read More »
In part 3 I test the setup with all 3 panels connected and look at the performance over the last 8 days. In part 1 you can see all the parts I pieced together and in part 2 there is the inital tests of the solar charger setup. It all consists of:
750W Victron Solar Project – Power wall and 8 days performance – Part 3 Read More »
In part 2 I test the setup with all 3 solar panels connected. A full production test in direct sunlight is conducted. If you missed the introduction to this project, check out 750 Watt Solar Project – Test Setup – Part 1. If you want to jump on to the further progress, check out 750W
750W Victron Solar Project – All 3 panels test – Part 2 Read More »
In part 1 I give a walk-through of my solar panel test setup, battery charging controller and the Victron app to control the charger over blue-tooth. Be sure to check out the rest of the project in 750W Victron Solar Project – All 3 panels test – Part 2, 750W Victron Solar Project – Power
750 Watt Solar Project – Test Setup – Part 1 Read More »
I finally got around to get the IH out of the box and repair it, here is part 1 of a series of videos on this IH. Watch part 2 and the following parts here. This is a 1800 Watt Induction heater that I bought from ebay at 40 Euro, I avoided the cheapest seller
Unboxing a Chinese 1800 Watt Induction Heater Read More »