3-phase transformers: delta and star (19 - Electricity Distribution)

[@TheNasnomaz]

very good explanation and graphic presentation. thanks a lot sir

[@adanner]

Thank you for subscribing. Keep watching and learning. Please do spread the word so others can learn too.

[@tedlahm5740]

A lesson for somewhat advanced learners. thank you

[@synapticmemoryseepage4447]

Thanks for this compact explanation of wye/delta configs.

[@vince6829]

Excellent presentation. Thank you for sharing your knowledge.

[@jensschroder8214]

I have already seen a transformer on the pole in Germany. The 3 HV lines go in at the top and four lines (L1, L2, L3, N) come out at the side. The output is a wye configuration.

[@ccshello1]

In few materials I have read, the single, thin wire above the 3-phase HV wires is just for lightning protection. It either go directly to the local ground (pole ground), or through a resistor to go to the ground. In those articles, they never said it serves as neutral wire as well.

[@tylerolsen4417]

It won't. Dangerous as crew would have to work above primary to establish neutral connections

[@GH-oi2jf]

For a Wye distribution line, the neutral is generally below the hot wires, at the level of the bottom of the transformer.

[@NoNeedtoFeedtheJudge]

EE EIT, that was awesome! Thank you!

[@Dubble_D]

Thank you :) very good info

[@adanner]

Thank you for subscribing.

[@innocentmentor8514]

Thanks a lot and I need more videos

[@AustinAdams]

What’s the negative side of Delta not having a neutral? Symptoms? Thanks, Austin

[@prasheen11man95]

At 4:58 , instead of saying phase to phase , saying line to line voltage would make the concept more clear , I guess

[@kjellg6532]

Agreed! «Phase» is a very confuting word. May denote a voltage, a wire or a phase angle.

[@petersonmerisma]

Good job

[@surajshukla5357]

Really loved your channel and subbed it today.. I am studying electrical engineering and it is gold

[@talashpeygir2621]

Super

[@206flyer3]

Excellent video, I finally learned the basics behind the power wires in my neighborhood, thank you ! One question I have is why the three phase power lines that run from the substation to the transformers on the poles changed from horizontal array to vertical array and back to horizontal array ? What is the difference and why not horizontal all the way ? Thanks again.

[@KENFEDOR22]

most likely clearance/right of way issues. I rural locations, right of ways can be wider allowing horizontal arms to support the conductors. In more dense locations, narrower right of ways force vertical arrangement of the conductors. As long as the distance between each phase is maintained, either way works. I'm sure there are maintenance pros and cons. Also, note the higher the voltage, the larger the distance between each phase. 765kV transmission towers are massive with the widest right-of-ways.

[@pedromorgado7222]

Can you please tell me how to calculate, the fuses in the primary for a transformer 600 volts, 3 phases, 75 KVA? Primary Delta and secondary Why. Thanks.

[@BVN-TEXAS]

Excellent explanation but is it just me or is there something about the way he says vOLtage. It’s like he is being shocked with some voltage when he says the o in vOLtage. Like stewy and the way he said cool Whip

[@khoabuihuunguyen5466]

Can you please have a video about tap changer in transformer?. Thank you.

[@mukokaaaron5812]

00p0000ppppppp}p}ppppp000000😊😊

[@handle924]

How is load balanced across phases for transmission?

[@Hossein118]

Interesting that I haven’t seen any pole mounted transformers in Singapore (obviously) and Malaysia! What’s going on?

[@RR42636]

underground to hide from typhoons

[@MrSummitville]

Or mounted at ground level in water proof transformer vault.

[@iamtemo]

Serious question. Is it “guy wire” or “guide wire”? @ 17:27

[@mjbianks]

The word guy or stay is interchangeable. Guy wire, stay wire or aerial guy are the terms I have commonly heard but generally you would use the terms guy wire or stay wire when the wire goes from pole to ground and aerial guy/stay when its bracing pole to pole. A stay or guy provide support to the pole/structure. A guide wire is used in other various applications and industries to "guide" objects along the length of the wire. Best look up the definitions of these three words, guy, stay and guide wires.

[@MrPutback]

Me watching this video: beautiful explanations - I understand what’s going on here but what does a turban have to do with this?

[@oicfas4523]

He mentioned turbines, but I think he really means generators (which the turbines will spin and is the part that generates the electricity).

[@tedlahm5740]

Can a three phase three wire DELTA distribution system (no neutral back to the substation) be connected to a SINGLE PHASE one bushing transformer which would CASE GROUNDED to earth at the pole? (meaning no neutral back to the substation)? thank you

[@RR42636]

yes

[@tedlahm5740]

@@RR42636Thank you. Would the NEV (neutral to earth voltage) still be measurable when only multi point grounding at each pole? Again, no parallel neutral back to the substation. Thank you

[@iamthesandog6840]

Wire guard on pole not conduit

[@brandonlogan3221]

a vOOOLt meter