Made easy 🎉

Brilliant! Been searching for this exact explanation for years🎉

Why I feel this is organic chemistry teacher, same ah d writing say way of speaking same voice

Why some 120 receptacles become 240? Please create a condition for them so we can learn. Thank Sir.

Thanks for sharing this videos bro, I've facing this problem, now I will fix it 💪✌️👍🙏💯

Thank you soooo Much for helping me truly understand a transformer. Will be watching more you have a great talent that lets me understand the how it works.

Does this mean if any of the 3 rules gets violated, you round down to the lower amp? Like if I have an ampacity of 27A and the branch circuit has more than 1 receptacle, do you round down to 25A breaker/fuse? That is how I interpret the exceptions to the “round up rule”. Asking for the journeyman test.

Dave do you have classes. And if so where are your classes held.

Question????????? If I would like to go down from 240 to 230. It's possible to use 1 coil frome the secondary to substrate 12v to get 228v, and the other coil just skipped it using wirenuts in the ends.?????

Starbucks sucks

I don't even knew something like an open neutral existed, but I understood it perfectly with this video, and so can attest to the fact that this is a brilliant demonstration of the concept.

That was average, but not good an explenation. Firstly there's not made a clear distinction between what protects what - overload devices do NOT protect the cirquit - they protect equipment. Secondly, without seeing a magnetic/thermal cirquit braker's typical trip curve and how it clearly distinguishes between Ikmin and Ikmax makes no sense either. Finally earth fault and specifics of types of earth fault: "high" as in industrial, where the foremost danger is fire and "low" as in residential where the greatest danger is electrocution.

Sir, if you could go one step ahead & talk about sizing a breaker to the load to protect against overload? Overloads unlike short-circuits are “analog” which are “digital” & the breaker has a much easier time dealing with SC rather than OL. If the breaker is sized on the lower end, it may cause spurious tripping, if too high then an OL may even cause the cable to melt & a fire may result. It is also important to anticipate the “type” of OL & which & how it might make sense such as due to excess mechanical loads or partial short-circuits.

good

This man makes these concepts very understandable. Visual learning is a must for many. Great iob sir.

WoW! you are such an amazing teacher! Simplified and made simple.

Excellent video

Thank you for saving my ass

I passed my CA exam because of these videos thank you

Can you get 120v to ground without a neutral for single phase power from a 3 phase panel?

Amazing teacher. Thx.

Dear dave... there is an impedance triangle for parallel. What you need to do is take the inverse values of R and L. The formula is as follows Z = 1/ (The square root of ( (1/R)^2 + (1/XL)^2 )

Ummm it's neither, as "hiding" the middle neutral conductor reveals, the output has always been a singular 240V.

Easiest decision to subscribe ever

kzfaq.info/get/bejne/l9mpiZOQrrCnenk.htmlsi=MRsdtnqPsaYYaWtz

Thank you! I was in doubt of which breaker to use for a 150 kVA dry type transformer 3 phase @ 440V primary. According to the NEC table the max size should be 250 amps breaker, but cost was considerably higher than 225 amps installation. We used a 225 amp I-Line breaker with 4/0 awg wire. Transformer is working without a problem. Your video saved me money :)

He is a great on teaching, also passionate about it.

Masterful presentation with critical eye-opening insights!

Hey Dave! I want to solve my problem: This is my step up transformer which is used as an inverter from DC to AC, when this transformer outputs voltage my both wires are phases and no neutral, so how to get a neutral wire from them as most sine wave inverters create a neutral phase.

One thing that is not mentioned in this video is that open neutral can be lethal. If the neutral is faulty the current can start returning through the earth. This can mean that conductive items in the house, for example the plumbing, can become live and electrocute someone who touches it. The tragic instance a few years ago of the young girl in Western Australia who touched an outside tap while standing in water and collected over 240 volts is an example.

Amazing.

Great teacher thanks you are the best of all the rest .

Blown away again! This man just keeps giving. what an awesome tutorial! Thank you very much! I did not know this was going to become a calculator tutorial as well. i learned something new again.

Very well done. I just had a situation like this and was completely stumped as to what was going on. This was an awesome graphic description. Thank you for a wonderful tutorial. Liked and subbed.

Thanks

"Ended up blowing up a bunch of stuff, cause they were RUSSIAN". - context😅

Cum aflam inductanta unei bobine? Mulțumesc!

LAKE COUNTY CALIF EVICTED ME OVER LARGE MARIJUANA GROWS YEARROUND ON CASCADE PROPERTY MANAGEMENT LAND DEL PASO ROAD SACRAMENTO CALIFORNIA

thank you for making these . VERY much appreciated. Ill remember you when i make it to the field. Would like to return the favor someday David. God bless ya man.

Brilliant and I concur. In your demonstration you could have gone further by fliping both side of the battery bank to simulate alternating current. Doing so would also disspell the notion of two hots when connecting across the full length of the coil to obtain 240V. What you have instead is continous reversals of hot and "neutral". Also add the resulting graphs of the superimposed sine waves. The two out of phase would be a flat line, the two in phase would a sine wave with greater amplitude. There is not a problem of overloading the neutral as these lines are joined at the thick bus bar in the electrical panel.

thank you! please make more videos.

Can you explain why half coil has more amps than the hole coil

I don't know if you read through comment, but thank you so much for educating me on how to interpret and wire transformers for 480v and 240v on the primary. I have an industrial machine at home I bought from my job and it was wired to 480v 3 phase and now that I finally have installed the machines to run at 240v 3 phase I realized I need to rewire the transformer to step down from 240v 3 phase to 120v single phase instead of 480v 3 phase to 120v single phase.

Excellent teacher. I did electrical years ago and is the first I understood the topic.

MY PRIMARY WINDING OF MY TRANSFORER HAVE A RESISTANCE 1.4KΩ AND VOLTAGE IS 220VAC

AMAZING VIDEO

ELI the ICE man. Outstanding instruction Dave!

Dave your a bomb teacher. You make transformer/ electrical theory very easy to digest.

I've taught electronics and have a tendancy to review quality of instruction. FYI you are excellent for new students foundational theory. watched several of your videos. If I was still teaching your vireos would be required viewung orior to my lecture.