Small Project: AC Mains Isolation Transformer from Two Broken UPSs (2/2)
Assembling all the parts in an enclosure, wiring them and final tests …
↓↓↓ Complete description, time index and links below ↓↓↓
Warning: This video involves mains AC, which can cause serious injury or death!
In part 1 I cobbled together the transformers from two broken APC Smart-UPS 750s (link below) to create an isolation transformer – and it kinda worked. Now it was time to put everything together in one of the UPSs’ enclosures.
This was mostly straight forward. Nevertheless I run into some smaller problems and a big (loud) one. Would you believe a transformer and a metal cage make an excellent loudspeaker for AC mains?
00:00 Intro – a warning and lots of parts on the bench
01:52 Second transformer – affixing it to the enclosure
07:20 Front panel – a whole lot of cutouts in ABS and metal
13:35 Wiring – reusing transformer connectors
23:53 Test – noise (!), voltage, isolation and load behavior
30:32 Noise suppression – more metal work
Small Projects: https://www.youtube.com/playlist?list=PLwq-2MnM58FIYvR6bny0fwgH4PFyIIeqR
Small Project: AC Mains Isolation Transformer from Two Broken UPSs (1/2): https://youtu.be/SlTDqRNryuM
Mailbag: Chinese Panel Meters and Nylon Spacer/Standoff Set: https://youtu.be/KVqXQy77B-U
#robertssmorgasbord #project #projects #build #isolationtransformer
Видео Small Project: AC Mains Isolation Transformer from Two Broken UPSs (2/2) канала Robert's Smorgasbord
↓↓↓ Complete description, time index and links below ↓↓↓
Warning: This video involves mains AC, which can cause serious injury or death!
In part 1 I cobbled together the transformers from two broken APC Smart-UPS 750s (link below) to create an isolation transformer – and it kinda worked. Now it was time to put everything together in one of the UPSs’ enclosures.
This was mostly straight forward. Nevertheless I run into some smaller problems and a big (loud) one. Would you believe a transformer and a metal cage make an excellent loudspeaker for AC mains?
00:00 Intro – a warning and lots of parts on the bench
01:52 Second transformer – affixing it to the enclosure
07:20 Front panel – a whole lot of cutouts in ABS and metal
13:35 Wiring – reusing transformer connectors
23:53 Test – noise (!), voltage, isolation and load behavior
30:32 Noise suppression – more metal work
Small Projects: https://www.youtube.com/playlist?list=PLwq-2MnM58FIYvR6bny0fwgH4PFyIIeqR
Small Project: AC Mains Isolation Transformer from Two Broken UPSs (1/2): https://youtu.be/SlTDqRNryuM
Mailbag: Chinese Panel Meters and Nylon Spacer/Standoff Set: https://youtu.be/KVqXQy77B-U
#robertssmorgasbord #project #projects #build #isolationtransformer
Видео Small Project: AC Mains Isolation Transformer from Two Broken UPSs (2/2) канала Robert's Smorgasbord
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Small Project: AC Mains Isolation Transformer from Two Broken UPSs (1/2)
APC Smart-UPS 750 Teardown (Details on the Mains AC Side, All the Chips)
EEVblog #279 - How NOT To Blow Up Your Oscilloscope!
Isolation Transformers: Internal Design and Safe Use with Oscilloscopes
DIY Test Gear: Dim Bulb Limiter / Tester with Isolation - Design and Build
Isolation Transformers can save your life, and your equipment.
Tripp-Lite Isolation Transformer Modification for True Electrical Isolation
How to make a variable AC voltage supply with a Variac and isolation transformer
Variac Isolation Transformer. Are Variacs Isolated?
Tech Tips Tuesday, Isolation Transformer and Variac Safety
Simple test to identify the high voltage 115V primary leads of a scrapped old UPS transformer
How To: Rewind Microwave Oven Transformer, Trash To Treasure!
Medir transformador de ups
Awesome 20 lifehacks with Microwave Trasformer and dc motor (motar) DIY
How does a Transformer work ?
An Isolation Transformer Built from Power Supplies
Building an eBay power filter kit (with schematic).
SDG #06 Mains Isolation Transformers and UK Earthing Systems
Isolation Transformers, Variacs and Autotransformers
Component Scavenger: ATX Power Supply