Recent content by Alex Torres

Sorry for not indicating, the growing popularity of these auto-transformers is mainly attached to off grid applications. The EU version of modern off grid inverters (220vac single phase) are way very cheaper than their US split phase counterparts, thus many DIY guys are posting videos on how use...

The installation dates back to 2013, little or nothing did i know by that time about a/c buck/boost transformers, it was the EE's idea (who certified the system) to install them in order to taper down the grid input, the Utility Co. then certified it with them installed, please check on the...

This extract is from Schneider modern inverters, the table default values are for the EU models but it also applies to the split phase US models XW+..... In contrast older versions of these inverters won't allow to change anti-islanding settings...

All grid tie installations must be approved by certified personnel and inspected by the local Utility Company, mine was certified by the same EE that suggested the installation of these transformers as he said there was a problem with the neighborhoods transformer that kept the voltage out of...

Reference: https://www.physicsforums.com/threads/autotransformers-in-solar-energy-applications.1059115/ . these buck/boost transformers lowers or increase the voltage seen by the inverter, while the voltage and frequency seen by the grid remains the same Reference...

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You're right, safety comes first, sorry for the grid tie example and the link placed, it was just posted to clarify the use of auto transformers as an a/c buck/boost alternative... ...the main theme of the thread is safety related issues dealing with the use of auto transformers in off grid...

https://www.hubbell.com/acmeelectric/en/Buck-Boost-Transformers

These transformers have also become popular for grid tie applications, as electrical standards have placed tight restrictions on grid tie inverters while selling power to the grid, for example my xw6048 disconnets when selling above 128vac since the grid in my area is 126vac + - 3 volts the...

All autotransformers wiring diagrams that I've seen are for buck/boost applications, is there a wiring diagram out there to convert a single phase leg to split phase??..thanks!!

Is there a general rule of thumb to size a general purpose transformer (wired for split phase output from a single phase leg) to an specific load??.Used a .5kva transformer for this purpose to power a 300watts single phase heater and the power loss was like 20% as the voltage dropped from 122vac...

Hi!!...There's a growing popularity on these transformers as they are being used to get 120/240 split phase out of a single 120v phase, read a recent comment about them not being as safe as an isolated transformer since their inner windings are not isolated....is an encapsulated general purpose...

...in a double slit experiment the computer zooms in the microscopic spot where the photon is absorbed and computes the probability of hitting that spot, if this is a measurement outcome then it must arise from an specific event (the photon hitting a microscopic spot in the screen) IMO the...

Come on, that's just figurative speech... my first reaction was to .😂...LOL at that comment... Dr Chinese has a good sense of humor... ...nevertheless, i firmly believe this experiment of Zeilinger has a lot of potential and i would criticize him for not using his resources at improving it...

Thanks for that input!👍