Как определить неисправность конденсаторов

74
389

Как определить неисправность конденсаторов Потеря работоспособности конденсаторов, может наступить вследствие:

я) короткого замыкания внутри него;

б) порыва цепи внутри него;

в) увеличения тока утечки;

г ) уменьшения емкости.

Неработоспособный конденсатор может быть определен посредством омметра, специального прибора для измерения ёмкости или проверочной схемы.

Для грубой проверки пригодности конденсаторов можно рекомендовать их контроль с помощью измерителей сопротивлений (омметр, комбинированный прибор — мультиметр).

Методика проверки заключается в следующем:

1) один из выводов конденсатора должен отделяться (отпаиваться) от схемы;

2) измерительный прибор настраивается на измерение в диапазоне десятков и сотен килоомов или даже мегаомов;

3) к выводам конденсатора прикладываются щупы прибора.

При этом для конденсаторов большой емкости от нескольких десятков до нескольких тысяч микрофарад будет характерным первоначальный бросок стрелки прибора на «нуль» (в момент прохождения максимального тока заряда) с последующим отклонением стрелки к метке «бесконечность»;

4) удовлетворительному состоянию диэлектрика конденсатора будет соответствовать показание омметра не менее чем 100 кОм;

5) если в конденсаторе большой емкости (10 — 100 мкФ) имеет место обрыв, то стрелка прибора сразу устанавливается на метке «бесконечность»;

6) для конденсаторов малой емкости практически невозможно с помощью омметра определить наличие обрыва, так как измерительный прибор будет показывать или короткое замыкание, если произошел пробой изоляции, или бесконечно большое сопротивление, если конденсатор в хорошем состоянии или имеется обрыв.

Как определить неисправность конденсаторов В случае, если есть подозрение на обрыв, такие конденсаторы обычно заменяются.

Обрыв цепи внутри конденсатора определяется посредством схемы измерения, состоящей из последовательно включенных конденсатора, амперметра переменного тока и резистора, ограничивающего ток через прибор.

Схема включается на источник переменного тока, напряжение которого не должно превышать 20% номинального напряжения конденсатора. Отсутствие тока в цепи указывает на обрыв.

Увеличение тока утечки определяется повторным подключением омметра к выводам конденсатора.

При первом подключении стрелка прибора отклонится за счет тока заряда, а потом вернётся в исходное положение.

Если при последующих подключениях, повторяемых с интервалом в несколько секунд, отклонения стрелки повторяются, то это значит, что конденсатор имеет повышенный ток утечки.

Уменьшение емкости, возникающее наиболее часто у электролитических конденсаторов, определяется сопоставлением номинальной емкости с фактической, измеренной посредством специальных мостов или схем и некоторых типов мультиметров.

Источник: http://www.eleczon.ru/

74 КОММЕНТАРИИ

  1. Thank you a lot for giving everyone an extraordinarily terrific chance to read
    from this web site. It is always so beneficial plus jam-packed
    with a lot of fun for me and my office mates to visit
    the blog at the very least 3 times a week to find out the newest guides you
    have. Not to mention, we’re certainly contented with
    your dazzling opinions served by you. Some 1 areas
    on this page are undeniably the best I’ve had.

    Here is my web-site; kebe.top

  2. I am so happy to read this. This is the kind of manual that needs
    to be given and not the accidental misinformation that is at the
    other blogs. Appreciate your sharing this greatest doc.

    Here is my homepage; clubriders.men

  3. Hello there! I just wish to offer you a big thumbs
    up for your great information you have right
    here on this post. I’ll be returning to your web site for more soon.

    Also visit my homepage; Hattie

  4. Hi, i think that i saw you visited my blog thus
    i came to ?return the favor?.I am attempting to find things
    to improve my site!I suppose its ok to use a few of your ideas!!

    Feel free to surf to my blog :: chengdian.cc

  5. I just wanted to send a small word to be able to express gratitude
    to you for all the pleasant strategies you are showing at this site.

    My particularly long internet search has finally been compensated with
    really good points to write about with my classmates and friends.
    I would declare that many of us website visitors actually are
    very much blessed to exist in a remarkable community with many marvellous professionals with valuable suggestions.
    I feel quite blessed to have encountered your entire web page and look forward to plenty
    of more brilliant moments reading here. Thank you once
    more for everything.

    my web page :: showhorsegallery.com

  6. I used to be suggested this blog through my cousin.
    I’m not sure whether this post is written through him as no one else
    realize such unique about my problem. You are wonderful!

    Thank you!

    Here is my website — chengdian.cc

  7. You actually make it seem so easy along with your presentation however
    I find this topic to be really something that I feel I would by no means understand.
    It kind of feels too complicated and very large for me.

    I am having a look ahead for your subsequent submit, I will try to get the cling of it!

    My site … mpc-install.com

  8. I was curious if you ever considered changing the
    page layout of your website? Its very well written; I love what youve got to say.
    But maybe you could a little more in the way of content so people could connect with it better.

    Youve got an awful lot of text for only having 1 or 2 images.

    Maybe you could space it out better?

  9. Its like you read my mind! You seem to know a lot about this, like you wrote the book in it or
    something. I think that you can do with some pics to drive
    the message home a little bit, but instead of that, this is great blog.
    An excellent read. I will definitely be back.

  10. You can certainly see your expertise in the work you write.
    The sector hopes for even more passionate writers such as you who aren’t afraid to
    mention how they believe. Always go after your heart.

  11. That is really attention-grabbing, You are a very professional blogger.
    I have joined your rss feed and look forward to looking for extra of your excellent post.
    Additionally, I’ve shared your website in my social networks!

    Feel free to visit my page clubriders.men

  12. Hello There. I found your weblog the use of msn. That is an extremely neatly written article.
    I will be sure to bookmark it and return to read extra of your helpful info.
    Thank you for the post. I’ll certainly return.

    Have a look at my web-site — clubriders.men

  13. I don’t even understand how I finished up here, however I
    assumed this post used to be good. I do not recognise who you’re but definitely you are
    going to a famous blogger should you are not already.
    Cheers!

    Here is my web blog: mpc-install.com

  14. A motivating discussion is worth comment.
    There’s no doubt that that you need to write more about this
    issue, it may not be a taboo matter but typically folks don’t
    talk about these topics. To the next! All the best!!

    Feel free to surf to my web page; https://kebe.top

  15. Wonderful article! This is the kind of info that are supposed to be shared around the internet.

    Shame on Google for now not positioning this put up upper!
    Come on over and discuss with my web site . Thank you =)

    my website clubriders.men

  16. Hello there, just became aware of your blog through Google, and found that it’s truly informative.
    I’m going to watch out for brussels. I’ll appreciate if you
    continue this in future. A lot of people will be benefited
    from your writing. Cheers!

    Here is my homepage … mpc-install.com

  17. Heya this is somewhat of off topic but I was wondering if blogs use WYSIWYG editors or if you have to
    manually code with HTML. I’m starting a blog soon but have no coding
    expertise so I wanted to get guidance from someone with experience.
    Any help would be enormously appreciated!

    Feel free to visit my site — mpc-install.com

  18. hello there and thank you for your info ? I have certainly picked up something new from right here.
    I did however expertise some technical issues using this website, as I experienced to reload
    the website many times previous to I could get it to load correctly.
    I had been wondering if your hosting is OK?
    Not that I am complaining, but sluggish loading instances times will sometimes affect your placement in google and could damage your high quality score if
    ads and marketing with Adwords. Well I am adding this RSS to my e-mail and could look out for a lot more of your respective
    fascinating content. Make sure you update this again very soon.

    Also visit my homepage: mpc-install.com

  19. Thank you for sharing superb informations. Your web site is
    very cool. I am impressed by the details that you have on this site.
    It reveals how nicely you perceive this subject.
    Bookmarked this web page, will come back for extra articles.

    You, my pal, ROCK! I found just the info I already searched everywhere and just couldn’t
    come across. What a perfect website.

    My blog — https://mpc-install.com/punbb-1.4.6/viewtopic.php?id=238316

  20. If you are going for most excellent contents like myself,
    only pay a visit this web page daily because it presents feature contents, thanks

    Here is my web page: kebe.top

  21. Hey There. I found your blog using msn. This is an extremely
    well written article. I’ll be sure to bookmark it
    and come back to read more of your useful information. Thanks for the post.
    I will definitely return.

    Feel free to surf to my website … http://www.tjml.top

  22. Spot on with this write-up, I honestly believe this website
    needs a lot more attention. I’ll probably be back again to read through more, thanks for
    the advice!

  23. hello there and thank you for your information ?
    I?ve certainly picked up something new from right here.
    I did however expertise a few technical issues using this website,
    since I experienced to reload the website a lot of times
    previous to I could get it to load properly. I had been wondering if your web host is OK?

    Not that I’m complaining, but slow loading instances times will very frequently affect your placement in google and can damage your high-quality
    score if advertising and marketing with Adwords. Anyway
    I?m adding this RSS to my email and can look out for a lot more of your respective exciting content.
    Make sure you update this again very soon..

    Feel free to surf to my web site: http://www.atomy123.com

  24. Thank you for the good writeup. It in fact was a amusement account it.
    Look advanced to far added agreeable from you! However, how can we communicate?

  25. An interesting discussion is definitely worth comment. I believe that you should publish more about this issue,
    it may not be a taboo matter but typically folks don’t discuss such issues.
    To the next! Kind regards!!

    My site :: mpc-install.com

  26. I drop a comment whenever I like a article on a site or I have something to contribute to the conversation. Usually it is a result of the passion communicated in the article I
    read. And on this post Как определить неисправность конденсаторов.
    I was actually moved enough to create a comment 🙂 I
    do have some questions for you if you usually do not mind.

    Is it just me or does it give the impression like a few of these remarks come across like they are left by
    brain dead individuals? 😛 And, if you are posting at additional sites,
    I would like to follow anything new you have to post.
    Could you make a list the complete urls of your communal pages like your linkedin profile, Facebook page or twitter
    feed?

    Feel free to visit my homepage; http://www.mhes.tyc.edu.tw/userinfo.php?uid=3079950

  27. Excellent pieces. Keep writing such kind of info on your site.

    Im really impressed by your blog.[X-N-E-W-L-I-N-S-P-I-N-X]Hey there, You have done an incredible job.
    I will definitely digg it and in my opinion suggest to
    my friends. I am confident they’ll be benefited from this
    web site.

    Check out my homepage — https://kebe.top

  28. Excellent weblog here! Additionally your site quite a bit
    up fast! What web host are you the usage of? Can I get your affiliate link to
    your host? I desire my site loaded up as fast as yours lol.

    Here is my blog post — aniene.net

  29. I wanted to follow up and allow you to know how much I loved discovering this blog
    today. I would consider it a honor to work at my business office and be able to make real use of the tips discussed on your website and also be a
    part of visitors’ feedback like this. Should a position regarding guest writer become offered at your end,
    remember to let me know.

    Look at my web-site Eleanore

  30. Howdy exceptional blog! Does running a blog similar to this require a large amount of
    work? I’ve very little understanding of coding but I was hoping
    to start my own blog soon. Anyway, if you have any suggestions or
    techniques for new blog owners please share. I understand
    this is off subject nevertheless I just needed
    to ask. Many thanks!

    Here is my web-site frun-test.sakura.ne.jp

  31. Thanks for your personal marvelous posting! I actually enjoyed reading it, you are
    a great author. I will be sure to bookmark your blog and
    will come back in the foreseeable future. I want to encourage that you continue your great job, have a nice afternoon!

    Have a look at my homepage :: http://www.lubertsi.net/

  32. Howdy! This is kind of off topic but I need some advice from an established blog.
    Is it very difficult to set up your own blog? I’m not very techincal but
    I can figure things out pretty fast. I’m thinking about setting up
    my own but I’m not sure where to start. Do you have any points or suggestions?
    With thanks

    Also visit my page — mpc-install.com

  33. Excellent post. I was checking constantly this weblog and
    I’m impressed! Extremely useful info specifically the last section 🙂 I
    maintain such information much. I was looking for this particular info for a long time.

    Thanks and good luck.

    my homepage: mpc-install.com

  34. Thank you for every other informative website.
    Where else may just I get that type of info written in such an ideal means?
    I have a project that I’m simply now working on, and I have been on the look
    out for such information.

    My website … http://www.wownova.de

  35. hello there and thank you for your info – I’ve certainly picked up something new from right here.
    I did however expertise a few technical issues using this site, as I
    experienced to reload the site many times previous to I could get
    it to load properly. I had been wondering if your hosting is OK?
    Not that I’m complaining, but slow loading instances times will very frequently affect your placement in google and can damage your quality score if ads and
    marketing with Adwords. Anyway I am adding this RSS to my email and can look out
    for much more of your respective exciting content. Ensure that you update
    this again soon.

  36. You can definitely see your enthusiasm in the
    paintings you write. The world hopes for even more passionate writers such as you who are not afraid to say how they believe.
    At all times follow your heart.

    my web site: Nuubu Review

ОСТАВЬТЕ ОТВЕТ

Пожалуйста, введите ваш комментарий!
пожалуйста, введите ваше имя здесь