Все |0-9 |А |Б |В |Г |Д |Е |Ж |З |И |К |Л |М |Н |О |П |Р |С |Т |У |Ф |Х |Ц |Ч |Ш |Щ |Э |Ю |Я

Каталог статей Принципы действия устройств Трансформаторы

Поиск по тегам : трансформаторы, конструкция трансформатора, магнитопровод, обмотки трансформатора, вводы трансформаторов, схемы обмоток трансформатора

Трехобмоточные трансформаторы PDF Печать E-mail
Трехобмоточные трансформаторы
Схема замещения трехобмоточного трансформатора




Схема замещения трехобмоточного трансформатора

Уравнениям (5) - (10) соответствует электрическая схема, которая показана на рис. 2 и представляет собой схему замещения трехобмоточного трансформатора. Напряжения U΄2 и U΄3 равны падениям напряжения в сопротивлениях нагрузки U΄2= I΄2Z΄нг2 и U΄3= I΄3Z΄нг3.

Схема замещения позволяет при известных параметрах трансформатора и заданных сопротивлениях нагрузки определить токи и напряжения обмоток, а также потери в них.




Параметры схемы замещения определяют экспериментально из трех опытов короткого замыкания (рис. 3, а - в). Опыты проводят аналогично опыту короткого замыкания двухобмоточного трансформатора. Из этих опытов определяют сопротивления:

Zк12= Z1+ Z΄2 (r1. + 2) + j (x1. + 2);

Zк13= Z1+ Z΄3 (r1. + 3) + j (x1. + 3);

Zк23= Z΄΄к23 (ω2/ ω1)2= Z΄2+ Z΄3 =

= (2. + 3) + j (2. + 3);



Сопротивление Z΄΄к23, полученное непосредственно из третьего опыта короткого замыкания, когда напряжение подводилось со стороны второй обмотки, приведено к числу витков вторичной обмотки. Сопротивление Zк23 приведено к числу витков первичной обмотки.

Из совместного решения уравнений (11) находим

Z1= (Zк12 + Zк13 - Zк23) / 2;

Z΄2= (Zк12 + Zк23 - Zк13) / 2;

Z΄3= (Zк13 + Zк23 - Zк12) / 2.


Векторная диаграмма трехобмоточного трансформатора, построенная в соответствии со схемной замещения, представлена на рис. 4. Из схемы замещения и векторной диаграммы видно, что изменение нагрузки у одной из вторичных обмоток оказывает влияние на напряжение другой вторичной обмотки, так как при этом изменяется падение напряжения в первичной обмотке I1Z1.





Для того чтобы ослабить это влияние, сопротивление первичной обмотки желательно уменьшать. При концентрическом расположении трех обмоток на стержне наименьшее сопротивление (за счет реактивной составляющей) имеет обмотка; расположенная в середине. Эту обмотку целесообразно использовать в качестве первичной. У выпускаемых трехфазных силовых трехобмоточных трансформаторов обмотки имеют группы соединений У/У/Д-0-11 или У/Д/Д-11-11.



Related items



#1 Lottie 30.12.2016 01:47
The writers are super experienced here! I decided to
buy dissertation chapter from them and sent some guidelines to the writer.
He took them into account and performed a very good chapter in 48 hours!

I wish I were just as good in writing as their writers are.|

Here is my page; wireless communications research papers: http://getessay.click/1-essay-writing/essay-writing-guides.php
#2 Whitney 11.01.2017 22:48
Hey would you mind sharing which blog platform you're working with?
I'm looking to start my own blog soon but I'm having a tough
time making a decision between BlogEngine/Wordpress/B2evolution and Drupal.

The reason I ask is because your layout seems different then most blogs and I'm looking for something unique.

P.S Sorry for being off-topic but I had to ask!

Check out my web-site; Kristen: http://bing.org
#3 Arlie 14.01.2017 03:27
I wouldn’t pass my final exams without their
writers’ help. That’s for sure! They performed a wonderful term paper for
me and a couple of reviews on time and without any mistakes.
What else can you want from the writing service?|

Feel free to visit my blog: carlos fuentes english
essays: http://getessay.click/4-dissertation-writing/help-with-masters-dissertation.php
#4 groollefeaw 14.01.2017 17:59
Раздаем по 50$ просто так.
Выберите счет, инвестируйте полученные 50$ и
наблюдайте за тем, как растут уже ваши деньги.
Получите 50 USD здесь http://rancat.xyz/track/BDP50
#5 Mei 27.01.2017 21:23
Hello would you mind letting me know which webhost you're using?
I've loaded your blog in 3 completely different browsers and I must say this
blog loads a lot quicker then most. Can you recommend a
good web hosting provider at a honest price? Many thanks, I appreciate

Review my web site: Jim: http://www.yahoo.net
#6 Senaida 29.01.2017 22:14
Hey there! I've been reading your blog for some time now and finally got the courage to go ahead and give you a shout out from Austin Texas!
Just wanted to tell you keep up the excellent work!

Also visit my homepage ... Chrinstine: http://bing.org
#7 Dalton 30.01.2017 22:42
I wouldn’t pass my final exams without their writers’ help.
That’s for sure! They performed a wonderful term
paper for me and a couple of reviews on time and without any mistakes.

What else can you want from the writing

Here is my blog: constructing a good cover
letter: http://getessay.click/7-writing-service/essay-writing-service.php
#8 Orval 14.02.2017 02:03
This website was... how do I say it? Relevant!!
Finally I have found something which helped me. Many thanks!

Feel free to surf to my blog; travel (Tiffani: https://www.sciu.com.au/members/1268/blog/2016/11/leisure-and-work-can-go-hand-in-hand)
#9 Annett 14.02.2017 02:16
I've learn several good stuff here. Definitely price bookmarking for revisiting.
I wonder how much attempt you set to make such a great informative website.

Also visit my web blog; travel (Nola: https://www.loomio.org/d/EcaIdtGR/making-smart-decisions-while-traveling-with-kids)
#10 Caryn 14.02.2017 02:22
Great blog here! Also your website loads up very fast! What web host
are you using? Can I get your affiliate link to your host?
I wish my site loaded up as quickly as yours lol

Take a look at my site travel - Lashawn: https://www.sciu.com.au/members/1268/blog/2016/11/leisure-and-work-can-go-hand-in-hand -
#11 Katherina 14.02.2017 02:24
Hey very interesting blog!

My web page; travel (Rosalina: https://www.sciu.com.au/members/1268/blog/2016/11/leisure-and-work-can-go-hand-in-hand)
#12 Alvaro 14.02.2017 02:30
Hi, i think that i saw you visited my weblog thus i came to “return the favor”.I'm attempting to find things to
improve my website!I suppose its ok to use some of your ideas!!

My web-site travel (Tiffani: http://thebikersroadhouse.com/blog/3739/riding-a-bike-for-almost-1-000-miles-in-a-day/)
#13 Richie 14.02.2017 02:30
Hi there, the whole thing is going sound here and ofcourse every one is sharing information, that's really good, keep up writing.

Feel free to surf to my web blog :: travel
(Catherine: http://thebikersroadhouse.com/blog/3739/riding-a-bike-for-almost-1-000-miles-in-a-day/)
#14 Ruben 14.02.2017 02:46
Do you have any video of that? I'd like to find out
some additional information.

My homepage :: travel (Neil: http://thebikersroadhouse.com/blog/3739/riding-a-bike-for-almost-1-000-miles-in-a-day/)
#15 Clifton 14.02.2017 02:51
hi!,I love your writing so a lot! proportion we keep in touch more
about your article on AOL? I require a specialist on this
space to resolve my problem. May be that's you! Having a
look ahead to see you.

my blog post travel [Finlay: https://www.lomography.com/homes/paulinemarshall/notes/1917067-enjoying-your-time-in-rome]
#16 Tyson 14.02.2017 02:53
Hi there, after reading this amazing post i am too delighted to share my
experience here with friends.

my page travel (Darci: http://www.equilibriarte.net/profile/fannierobinson/blog/36827)
#17 Katja 14.02.2017 02:56
An interesting discussion is worth comment. I believe that you ought to publish more on this topic, it may
not be a taboo matter but usually folks don't talk about such topics.
To the next! Many thanks!!

Feel free to visit my page travel (Pat: https://www.loomio.org/d/EcaIdtGR/making-smart-decisions-while-traveling-with-kids)
#18 Kate 14.02.2017 03:01
Marvelous, what a blog it is! This weblog presents valuable data to us, keep it up.

Feel free to visit my webpage ... travel (Vernita: https://nanohub.org/members/157921/blog/2016/11/things-you-should-do-before-going-global)
#19 Marisol 14.02.2017 03:04
I am really loving the theme/design of your weblog. Do you ever run into any
internet browser compatibility problems? A small number of my blog
readers have complained about my site not working correctly in Explorer but looks great in Chrome.
Do you have any tips to help fix this problem?

my blog - travel (Leilani: https://nanohub.org/members/157921/blog/2016/11/things-you-should-do-before-going-global)
#20 Florrie 14.02.2017 03:07
I'm impressed, I must say. Rarely do I encounter a blog that's equally educative and engaging, and let me tell you, you've hit the
nail on the head. The issue is something too few men and women are speaking intelligently about.
I am very happy I stumbled across this in my search for something
relating to this.

My web blog - travel (Rosalyn: https://nanohub.org/members/157921/blog/2016/11/things-you-should-do-before-going-global)
#21 Veola 14.02.2017 03:11
Hi everyone, it's my first visit at this site, and paragraph
is truly fruitful for me, keep up posting these
types of articles.

my web-site :: travel (Edythe: https://www.sciu.com.au/members/1268/blog/2016/11/leisure-and-work-can-go-hand-in-hand)
#22 Elwood 14.02.2017 03:17
Quality articles or reviews is the important to be a focus for the visitors to pay a visit the web site, that's what this site is providing.

My web blog ... travel (Ines: http://kicksair.com/pages/85104463-tips-to-be-adventurous)
#23 Herman 14.02.2017 03:25
Having read this I thought it was very enlightening.
I appreciate you finding the time and effort to put this content together.
I once again find myself spending a lot of time both reading and leaving comments.
But so what, it was still worth it!

my webpage travel (Elisha: http://kicksair.com/pages/85104463-tips-to-be-adventurous)
#24 Fay 14.02.2017 03:30
Hello there, You have done a great job. I'll certainly digg it and personally
suggest to my friends. I am confident they'll be benefited from this web site.

my homepage - travel - Ambrose: http://www.ocfoodies.com/profiles/blogs/fun-reasons-that-will-motivate-you-to-travel-more-often,
#25 Consuelo 14.02.2017 03:35
Hi, its fastidious article about media print, we all
understand media is a impressive source of data.

my webpage ... travel (Katia: https://www.lomography.com/homes/paulinemarshall/notes/1917067-enjoying-your-time-in-rome)
#26 Kara 14.02.2017 03:38
I am not sure where you are getting your information, but good topic.
I must spend some time studying more or understanding more.
Thanks for great information I used to be in search of this info for my mission.

Here is my weblog ... travel (Mario: http://www.ocfoodies.com/profiles/blogs/fun-reasons-that-will-motivate-you-to-travel-more-often)
#27 Katherin 14.02.2017 03:45
I'm really enjoying the theme/design of your web site.
Do you ever run into any browser compatibility problems?
A small number of my blog readers have complained about my site not operating correctly in Explorer but
looks great in Chrome. Do you have any suggestions to
help fix this issue?

Feel free to surf to my page: travel; Connie: http://thebikersroadhouse.com/blog/3739/riding-a-bike-for-almost-1-000-miles-in-a-day/,
#28 Windy 14.02.2017 03:46
Can you tell us more about this? I'd want to find out
some additional information.

My homepage ... travel (Kory: https://www.tripoto.com/trip/why-should-you-travel-to-asia-if-you-have-a-tight-travel-budget-582eb0aa524ba)
#29 Bianca 14.02.2017 03:52
Your style is very unique in comparison to other folks I've read stuff from.
I appreciate you for posting when you've got the opportunity, Guess
I'll just bookmark this site.

Here is my web site - travel (Albert: https://www.loomio.org/d/EcaIdtGR/making-smart-decisions-while-traveling-with-kids)
#30 Lea 14.02.2017 03:55
It's going to be finish of mine day, but before end I
am reading this wonderful piece of writing to improve my know-how.

my website; travel (Pearlene: https://www.givology.org/~VirginiaJohnson/blog/294101/)
#31 Cornelius 14.02.2017 04:01
If you want to get a great deal from this piece of writing then you have to apply such methods to your won web site.

Here is my homepage - travel - Gabrielle: http://www.equilibriarte.net/profile/fannierobinson/blog/36827,
#32 Tammie 14.02.2017 04:09
This post is worth everyone's attention. How can I find out more?

Check out my homepage: travel (Katherine: http://storymaker.cc/lessons-learned-while-traveling-abroad/)
#33 Dorris 14.02.2017 04:14
Nice post. I used to be checking constantly this
weblog and I'm inspired! Very helpful info particularly the remaining phase :)
I care for such info a lot. I used to be seeking this
certain info for a very long time. Thank you and good luck.

My blog post ... travel; Scott: https://www.lomography.com/homes/paulinemarshall/notes/1917067-enjoying-your-time-in-rome,
#34 Marko 14.02.2017 04:18
If some one needs to be updated with most up-to-date technologies after that he must be visit this website and be up to date every day.

Here is my weblog travel (Chance: http://storymaker.cc/lessons-learned-while-traveling-abroad/)
#35 Edwin 14.02.2017 04:20
Great blog here! Also your web site loads up fast!
What host are you using? Can I get your affiliate link to your host?
I wish my website loaded up as quickly as yours lol

Here is my website ... travel (Maximo: https://www.givology.org/~VirginiaJohnson/blog/294101/)
#36 Louie 14.02.2017 04:58
There is definately a lot to find out about this
subject. I like all of the points you made.

my web page; travel (Efren: https://www.sciu.com.au/members/1268/blog/2016/11/leisure-and-work-can-go-hand-in-hand)
#37 Edmund 14.02.2017 05:04
Just wish to say your article is as surprising. The clearness in your post
is simply nice and i could assume you are an expert on this subject.
Well with your permission let me to grab your feed to
keep up to date with forthcoming post. Thanks a million and please
keep up the gratifying work.

My web blog :: travel (Sara: https://pharmahub.org/members/2470/blog/2016/11/why-should-you-pack-your-bags-immediately-and-travel-to-a-new-place)
#38 Damion 14.02.2017 05:05
I think this is among the most important information for
me. And i'm glad reading your article. But should remark on some general things, The site style is
ideal, the articles is really nice : D. Good job, cheers

Also visit my page :: travel (Lawrence: http://www.ehcanadatravel.com/travel-stories/5500.html)
#39 Theresa 14.02.2017 05:09
I really like your blog.. very nice colors & theme.
Did you design this website yourself or did you hire someone to do it for you?

Plz reply as I'm looking to create my own blog and would like to know where u got this from.
thanks a lot

My blog :: travel (Minna: http://www.ehcanadatravel.com/travel-stories/5500.html)
#40 Antwan 14.02.2017 05:12
Howdy great blog! Does running a blog such as this require a large
amount of work? I have very little knowledge of coding but I had been hoping to start my own blog soon. Anyway, should you have any ideas or techniques for new blog
owners please share. I know this is off subject nevertheless I simply wanted to ask.
Thank you!

My web site; travel (Alena: http://www.equilibriarte.net/profile/fannierobinson/blog/36827)
#41 Earnest 14.02.2017 05:16
you're in reality a excellent webmaster. The web site loading velocity is
incredible. It kind of feels that you are doing any unique trick.
Furthermore, The contents are masterpiece.
you have performed a magnificent process in this subject!

my blog post ... travel (Wally: http://www.giikers.com/article/83217/traveling-to-india-with-kids)
#42 Marsha 14.02.2017 05:19
If you want to obtain a great deal from this post then you have to apply these techniques to your won webpage.

Feel free to visit my site: travel (Brooke: https://www.givology.org/~VirginiaJohnson/blog/294101/)
#43 Hubert 14.02.2017 05:20
whoah this blog is fantastic i like reading your articles.
Keep up the good work! You realize, a lot of individuals are hunting around for this information, you could help them greatly.

Feel free to surf to my website travel (Emerson: http://storymaker.cc/lessons-learned-while-traveling-abroad/)
#44 Claribel 14.02.2017 05:21
Its like you read my mind! You appear to know a lot about this, like you wrote the book in it or
something. I think that you can do with a few pics to drive the message home a little
bit, but other than that, this is fantastic blog.

An excellent read. I will certainly be back.

Have a look at my page :: travel (Ramonita: https://www.lomography.com/homes/paulinemarshall/notes/1917067-enjoying-your-time-in-rome)
#45 William 14.02.2017 05:26
Really no matter if someone doesn't be aware of after that its up to other viewers that they
will help, so here it occurs.

My web blog: travel (Lincoln: https://www.givology.org/~VirginiaJohnson/blog/294101/)
#46 Randall 14.02.2017 05:27
I'm really impressed with your writing skills and also
with the layout on your blog. Is this a paid theme or did you
modify it yourself? Anyway keep up the nice quality
writing, it is rare to see a nice blog like this one nowadays.

Feel free to surf to my page :: travel, Graig: https://www.loomio.org/d/EcaIdtGR/making-smart-decisions-while-traveling-with-kids,
#47 Betsey 14.02.2017 05:31
I know this web page provides quality based content and additional information, is there
any other web page which presents these things in quality?

Also visit my website - travel (Willie: https://www.tripoto.com/trip/why-should-you-travel-to-asia-if-you-have-a-tight-travel-budget-582eb0aa524ba)

Добавить комментарий

Я надеюсь, что наши посетители воспитанные люди, и не будут употреблять не нормативную лексику. Не умеющие выражаться нормальным языком, больше не смогут никогда оставлять комментарии.

Защитный код

Добавить в избранное | Сделать стартовой

Rambler's Top100 Рейтинг@Mail.ru