Delta and Wye - Volts, Amps, & VA

I thought the formula for VA was just Volts x Amps. Not Volts x Amps x 1.732. Is that not the case?

Might take me a few more times to digest this one. Thank you for explaining.

Quick question here, not sure how that 1.73 came about. So how did he do it/get it?.
Thanks in advance

Thnaks Dave appreciate it my guy

Linemen have to know this. City of Tallahassee is the best

I'm 40 and have just started to dulge into this type of work. I can say... from someone with very little knowledge of electricity. You do a very good job of making it as understandable as possible. Thank you.

Good communication skills Dave, appreciate you.

The best explanation, thanks boss

Dear Sir,

Would you tell me the resistance of the Delta circuit between Point A and Point C when all coils are 10ohms?

thank you
🙇🙏

My only question here is how did you get the 10a current ,you just made it up , which calculation do I use to get the line current if I don't have the winding current

I’ve watched this video probably 5 times, come back for a refresher every now and again

Really well explained! I was overthinking the turns ratio and the step down in voltage from my course lectures.

I have a Simple question. I understanding most of the video, I just want to know how did you know to times the winding current by 1.73. Is that a law for all three phases transformers or just this example.

Thank you. Huge help.

How did we come up with 1.73

I just have one question. If we assume that the wye is connected to a unbalanced grid is the grid connected to the delta then unbalanced too? I just wondering how MV grids are balanced and LV grids are not balanced but are often connected with a Dyn transformer

Been an electrician for many years, and this is probably the most easily digested explanation I've ever seen.

add a section individual currents for if single phase loads used on all phases to neutral, i assume should not to be more than 40amps

Thanks Gordon much appreciated.Just wanted to know incase if there is a phase failure or line failure on the delta side,what happens on the secondary side , how can I detect this fault on the secondary side of the transformer

OH MY..... this is the worst explanation of three phase transformers ever. I taught Electrical Engineering Circuit Analysis for several years. Its not that hard! Some simple mathematical differences. the biggest is where the SQRT 3 comes into account. And that is a trigonometry problem.

بہت خوب سر🎉

Boom! Dave just dropped the mic when he multiplied 120v by 1.73. and everything seems clearer now big thanks DG.

Very accurate explanation

Wish I had this guy as a teacher in the tech school I was at. He didn't say "particular deal".

Where did rhe 17.3 come from? Sorry I missed that explanation.

Very excellent explanation

I've always wondered, what would happen if a power company put 100,000 houses on only phase A, and nothing on the rest. What would happen

What’s the difference between (Line - Phase - Winding) ?

Thanks!

You are Amon Lubiano here in the Philippines,,,,glad to see your channel sir,,,BIG BIG BIG SALUTE❤

The 208 Y is very common on work boats because you can get the 120v without a transformer. The problem is that after a few decades of boat engineers wiring things up, many of them don't make sure that each 120 leg is in balance with the other 2 legs.

thank you

what an amazing explanation..

Thank you Dr Dave, this is awesome - so clear and concise!

Ok, yeah, third video I`m watching from this man and almost never it has been so easy to click the subscribe-button.

Wye the hell did I watch the whole thing

Well...could be nice to see where that SQR(3) come from (mathematically)

Great info for anyone either new to the electrical field or seasoned vets. Thank you.

“An electrician who knows it all is a dead electrician.”

-My Journeyman

Well done!!

Kool

Great explanation and editing! Thanks

Thanks

Three phases 4 wires...Y (wye)- Connection : has Neutral (Zero) /Earth-grounding
Three phaese 3 wires...∆ (Delta)-Connection; ..no Neutral (Zero) /Earth-grounding.

Hi .I have a question.
Why does second voltage is 208? Between 2line(120 +120) is 240
Why is not?

thank you. I'm getting 480 into my shop , and a step down transformer for stuff that runs on lower voltage. This helps me understand what is going on.

Wow. Thank you.