Three Phase 4 Wire Delta

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  • เผยแพร่เมื่อ 22 ม.ค. 2025

ความคิดเห็น • 58

  • @jonnygigg
    @jonnygigg 3 ปีที่แล้ว +1

    Another really good video, explaining something I knew about before but didn't quite understand. Such a good teacher!

    • @schulerruler
      @schulerruler  3 ปีที่แล้ว

      Thank you my friend for the encouraging words! I'm happy that are helping!

  • @mdslax0172
    @mdslax0172 3 ปีที่แล้ว +1

    Probably the best explanation I have seen yet! Great job

  • @matthewmattie8694
    @matthewmattie8694 5 ปีที่แล้ว +1

    One of the chillest guys I've ever worked with right here.

    • @schulerruler
      @schulerruler  5 ปีที่แล้ว +1

      Hey Matt! Thanks man!

    • @matthewmattie8694
      @matthewmattie8694 5 ปีที่แล้ว

      @@schulerruler No prob man. I just subscribed. I love the video tech you are using to teach this. Really cool and great work!

  • @grumpyuncle.
    @grumpyuncle. 2 ปีที่แล้ว +1

    Excellent info! Well Done!

  • @DanBurgaud
    @DanBurgaud 2 ปีที่แล้ว

    In my neighborhood, this High Leg 3Phase is supplied by the electric utility company using 2transformers (not three as suggested in the schematic above).
    The 1st transformer is a center tapped transformer delivering B,N,C. The 2nd Transformer is wired as A,N and is perpendicular to B and C phase.

  • @nbultman_art
    @nbultman_art 5 ปีที่แล้ว +11

    I kept lapsing into distraction trying to figure out HOW YOU'RE WRITING BACKWARDS ON THIS BOARD. Or are you mirroring your body to be behind the glass you're writing on, when in reality, you're in front? I'M SO CONFUSED

    • @schulerruler
      @schulerruler  5 ปีที่แล้ว +7

      I should just tell people it's a skill haha. A normal camera would see me writing backwards. This one displays a 180° image. On my belt buckle it should read "Johnny Cash" but you can see it's backwards.

    • @nbultman_art
      @nbultman_art 5 ปีที่แล้ว

      schulerruler you should hahah. Honestly the whole setup is a fantastic way to help us visualize good job!

    • @schulerruler
      @schulerruler  5 ปีที่แล้ว +1

      @@nbultman_art thanks for that! I can't take credit for that haha. That goes to my colleagues and our fantastic tech ship guys that built the whole thing.

    • @amoldabhade4033
      @amoldabhade4033 4 ปีที่แล้ว

      I want to know ur setup...how ur writi...which tye of technique used?

  • @danalex2991
    @danalex2991 3 ปีที่แล้ว +1

    Amazing video!

  • @chikitin1204
    @chikitin1204 ปีที่แล้ว

    What would happen if you tap another coil in the 4 wire delta, i mean a 5 wire delta. Will it cause a failure? Or still working?

  • @sethtaylor5938
    @sethtaylor5938 10 หลายเดือนก่อน

    At First Energy we called the middle pot (that's 120/240) the Lighting Pot. Smallest config wud be two 25 KVA wing pots and a 50 KVA lighting pot. Usually the three phase load is smaller than the 120/240 load in commercial customer. On occasion, all three would be 25 KVA minimum.

  • @atomicdmt8763
    @atomicdmt8763 ปีที่แล้ว

    I am design a commerical solar PV system. Best solution? We were going to stagger 6 1ph inverters.....however the need for neutral is very likey going to be a conflict. Solutions? THANKS

  • @khactamtran4385
    @khactamtran4385 ปีที่แล้ว

    sorry, what happen if the phase C short to ground. Is the system still operate normal or relay will be trip?

  • @wildness01
    @wildness01 2 ปีที่แล้ว

    Would it be possible to create a high leg wye system? With two 120v windings and one 208 volt winding all center grounded but phased so that they could basically mimic high leg delta but actually be wye derived?
    I'm asking this because I use inverter derived 3 phase where each leg is digitally controlled from a seperate inverter, for offgrid solar applications. I'm wondering if it would be possible to use 2 120v inverters and one 208v inverter to mimic a high leg delta system.

  • @ronbass2293
    @ronbass2293 ปีที่แล้ว

    Can you feed the primary voltage into the secondary of transformer and get the same change

    • @schulerruler
      @schulerruler  ปีที่แล้ว

      The issue would be insulation on the windings. Applying primary rated voltage to the secondary windings, the secondary windings may not have the required dielectric strength.

  • @adambachert9405
    @adambachert9405 4 ปีที่แล้ว

    Could you do a video similar to this on a solid or "corner" ground system?

  • @danieldyer9177
    @danieldyer9177 3 ปีที่แล้ว

    how to size a transformer ?

  • @alexanderacosta4443
    @alexanderacosta4443 5 ปีที่แล้ว

    Thank you. I really understand now high leg with your video.

  • @charlesgault3777
    @charlesgault3777 4 ปีที่แล้ว

    I know that the hi leg setup is used in situations where both single and three phase voltages are in use but is there any use for the 208v between phase A and the neutral wire?

  • @levuthi
    @levuthi 3 ปีที่แล้ว +1

    excellent, thanks

  • @SravanKumar-uc6qt
    @SravanKumar-uc6qt 3 ปีที่แล้ว

    I wanna 4 wire Delta wirring system

  • @electrotech2253
    @electrotech2253 5 ปีที่แล้ว

    Did you ever upload the next video? This one was great.

  • @possibility28able
    @possibility28able 5 ปีที่แล้ว

    Do you know how you get 240 volts from a 2pole breaker in a 120/240 delta service with a 208 high leg?

    • @schulerruler
      @schulerruler  5 ปีที่แล้ว

      Line to line voltage in this system would still be 240v. Hopefully this is what you are looking for.

    • @possibility28able
      @possibility28able 5 ปีที่แล้ว

      @@schulerruler Is it because vector math of 120 +208 = 240? I guess I'm not sure how the vector math works out if that's the case

    • @schulerruler
      @schulerruler  5 ปีที่แล้ว +1

      @@possibility28able you wouldn't need to sum anything in this case. Each of the coils are rated at 240, so they would be the phase voltage and line voltage on the output of the transformer.

    • @possibility28able
      @possibility28able 5 ปีที่แล้ว

      @@schulerruler Oh yeah. I guess I'm thinking of if you used a 4 wire feed, such as for a range or appliance that required two legs of 110 volts, which wouldn't be used in a delta service.. Thanks

  • @Aadtgvjn
    @Aadtgvjn 3 ปีที่แล้ว

    Nice explanation

  • @armandocs512
    @armandocs512 4 ปีที่แล้ว +1

    good video, thanks man

  • @Sparky-ww5re
    @Sparky-ww5re 2 ปีที่แล้ว

    Many might not be aware, but it is possible to have a 4 wire delta at 480 volts. You'd have 240v L-N, 415v high leg - N, and 480 L-L. I've heard of them a time or two, they are super rare and kinda pointless, because if you had a 480 volt system and needed to run 240 volt equipment normally you'd have a 277/480Y system and use a 480 to 240 transformer. Wye systems are the most common because load balancing is easier when supplying single phase equipment. Delta systems are really only practical when most of your loads are 3 phase, also it's easy to accidentally connect 120 volt equipment to the high leg and destroy stuff. For these reasons 4 wire delta systems are rarely used in new installations.

  • @zakattack467
    @zakattack467 4 ปีที่แล้ว

    At 3:29 did you intend to write Va-b? Not Va-n?

  • @sheikhawais786
    @sheikhawais786 4 ปีที่แล้ว

    Your way of explanation is really great! May anyone please answer here what would be the reduced capacity (kVA) if we have only open delta at primary and not at secondary. We've D-Yn (11kV to 415V) transformer. Let's have initially rated power of 30kVA. Thanks in anticipation

    • @bobbrumley3964
      @bobbrumley3964 4 ปีที่แล้ว +1

      If you have open delta on primary your secondary will be open delta or open wye. Doesn’t mater you still have a 57.7 percent of your 30kva. 30kva x .577 = 17.31kva.

  • @jeffbrower68
    @jeffbrower68 5 ปีที่แล้ว +1

    I love your chalk!

    • @schulerruler
      @schulerruler  5 ปีที่แล้ว

      They're actually fluorescent whiteboard markers so they pop with the screen lighting.

    • @jeffbrower68
      @jeffbrower68 5 ปีที่แล้ว

      So good!

  • @roberttshitenda7878
    @roberttshitenda7878 3 ปีที่แล้ว

    Good morning, I like yours explanations is easy but I don't understand how you are founding vertical and horizontal pleases more explanations slowly please

  • @lkingofledimb4103
    @lkingofledimb4103 4 ปีที่แล้ว

    hmmm that fairly eazy… so you have any videos that describe the basic principles of a single line diagram.. have some yough guys in the team that I put together and I found out that they are visual learners... THESE youngh men are of the new era.. so they love being on there phone a lot, so instead of them watching nonsense during break imma make them watch your videos... they will hate me at first but over time they will thank me.... you see what I mean?? thanks in advance SIr... love your work.... god bless.

  • @seymourscagnetti7777
    @seymourscagnetti7777 5 ปีที่แล้ว

    THIS SHIT IS BONNAROO HEAVY GAUGE BITCHIN! MAKES ME WISH I WOULD HAVE BECOME AN ELECTRICIAN.

  • @matthewellis3004
    @matthewellis3004 2 ปีที่แล้ว

    It seems that you need to be left handed to be able to write in reverse on a piece of glass..lol.
    Is that what he is doing?

  • @dedofofo8985
    @dedofofo8985 2 ปีที่แล้ว

    🇨🇦🇨🇦🇨🇦🇨🇦👍🏻👍🏻👍🏻👍🏻

  • @guspbr
    @guspbr 7 หลายเดือนก่อน

    thanks for speaking in real english 😭😭😭

  • @oskien0714
    @oskien0714 ปีที่แล้ว

    That was not a good explanation I wish you would show cosine and Pythagorean’s theorem instead of just saying it gets a little confusing to be honest

  • @MsDev321
    @MsDev321 4 ปีที่แล้ว

    motor control

  • @jolyonwelsh9834
    @jolyonwelsh9834 6 ปีที่แล้ว +1

    Come on you wuss. Hey I put it in the same panel all the time. I even use it for modern LED lights which. will run on any voltage from 100 to 277 volts 50 or 60 Hz. Just make sure you use a straight rated circuit breaker. (240 volts)

    • @schulerruler
      @schulerruler  6 ปีที่แล้ว +1

      Jolyon Welsh thanks for watching. This video is intended as an instructional aid for electrician training on installations complying to Canadian Electrical Codes. Installation of a high leg in the same service as the 120/240 has the potential for accidental 208v single phase situations. This is what is mentioned in the video.

    • @jolyonwelsh9834
      @jolyonwelsh9834 6 ปีที่แล้ว

      Well you have to first measure for the high leg. And then put a warning label on the panel in question. In the U.S NEC the label must say " Caution, B phase is 208 volts to neutral".