I give an overview of a 65kW X-ray generator system for a 70 kV X-ray transformer. The full-bridge of 400A 1200V IGBT bricks makes for a powerful inverter to drive the ferrite cored high voltage transformer.
70 kV / 65 kW X-Ray System, Transformer and Inverter – Isolation, Day 12 Read More »
I go through my collection of current transformers. Regular ratio transformers, hall effect sensors, shunts, Pearson and Ion Physics current monitors and how to make a DIY high frequency current transformer.
High Current Measurements – Isolation, Day 10 Read More »
I go through my collection of iron/ferrite core high voltage transformers. MOTs, OBITs, NSTs, PTs and X-ray transformers. Microwave Oven-, Oil burner ignition-, neon sign- potential- and x-ray transformers. I forgot to add the old and new flyback transformers I have… somewhere…
High Voltage Transformers – Isolation, Day 9 Read More »
Teardown of the Siemens Polyphos 30 X-ray head which contains step-up transformers, voltage multipliers and a rotating plate x-ray tube and a lot of oil! Be sure to check out part 2 about the collimator and image plate and part 3 X-ray inverter system. Discussion of teardown and additional pictures: https://highvoltageforum.net/index.php?topic=523.0
Siemens Polyphos 30 X-RAY Head 125kV Teardown (Part 1 of 3) Read More »
Teardown of the GE AMX-II SCR based inverter controller, driver and bridge for a General Electric mobile x-ray unit. It is a 120V battery operated apparatus from 1979, which has a 60 Hz mains inverter and 500 Hz high voltage inverter. All analog controlled with completely custom made electronics. For more teardowns of x-ray equipment,
GE AMX-II, mobile 110kV X-RAY system teardown Read More »
Yesterday I conducted the first successful resistive load test of a 3 phase 13 A Lübcke variac stack. It has been been enhanced with safety and monitoring options. Read all about the construction and see all the pictures and video demonstration here.
Finished Project: 3 Phase 13A Lübcke Variac Read More »