Shadowing Practice: The Difference Between Contactors And Relays - ELECTROMAGNETIC SWITCHES electricians use - Learn English Speaking with Video

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What's going on my friends?
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This is Dustin Stelzer with Electrician U and today we're going to talk about the difference between a relay and a contactor. so relays
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and contactors are pretty much the same thing i mean they
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essentially work the same way both of them are electromagnetic switches
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so rather than you having to come up
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and push to turn this device on you know like manually
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you can actually send current to it send an electrical signal
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and that is what turns the thing on it does
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that for both of these both of them are electromagnetic switches
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both of them are really used as like multi -pole switches
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so if you want to control several different circuits
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or several different loads that are on different circuits at the same time you can do
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that with both of these whereas a normal light switch you
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can only control one thing both of them have coils
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so there's actually a coil of wire in here that
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when you send current through it engages an electromagnet
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and it sucks the contacts shut or opens them up they both operate
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that way and both of them have contacts
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so they have multiple different contacts
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that you can run say home runs from a panel to
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and then you run out of the other contacts out to
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the field somewhere to different kinds of things relays also have them so even though
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that they're very similar in a lot of ways they're very
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different in some important ways typically a relay is going to be a low voltage
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or low current application meaning that the both the coil
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and the contacts really can't handle a lot of current a lot of these things are rated at like 5 amps,
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10 amps, 15 amps, where contactors are typically used in higher voltage, higher current environments.
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The contacts on these can handle anywhere from 30, 40, 50 amps.
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The metal and the pieces that make up the inside of this relay are actually a lot smaller and more compact,
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whereas a contactor, everything is a lot more beefy.
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Typically with relays, you cannot change the coils inside of them.
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Whatever rating you get this device is the rating you got to run to it and through it.
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Whereas a lot of contactors, not all of them, but a lot of them, you can actually take this coil pack out and put a brand new coil in it.
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So if you have 120 volt coil but you need a 277 coil, a lot of times you can just go to the supply house, pull this out, put a new one in.
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Another difference is that relays can typically only control up to like two
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or three loads they're just designed for a couple of different
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functions whereas contactors this one specifically can do four loads
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and there's some even like this crazy one back here that's a six pole
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and it can even be expanded to do eight
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or this guy up here can do 12
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so they're a lot more expansive most relays also have a both a normally open
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and a normally closed option so you can kind of turn some things off
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while turning other things on at the same time with a relay where most general use contactors you can't do
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that general use contactors are typically only normally open or normally closed
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so everything is going to turn on or everything is going to turn off
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when you energize that coil however lighting contactors like again this guy
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or this guy you can change you can add auxiliaries to them you can kind of move back and forth
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whether or not some of them are normally open
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and some of them are normally closed
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so they have a little bit more high functionality
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but again it's kind of the same thing it's just limited to usually two
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or three things or anywhere from like two to twelve in
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that case another thing
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that some contactors have again lighting contactors more specifically is they have the ability to be mechanically held
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so you can latch them in place and that way
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if power is gone
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or you lose power to the coil all the lights fail in an on position where relays don't have
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that function basically once you send power to them
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and you take power away they turn on or they turn off like a general purpose contactor would.
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So that's pretty much it for the differences between contactors and relays.
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I hope that kind of cleared some things up.
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A lot of people when they hear relay they're like uh what is that it's some like magical switch.
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No it's the same thing.
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They're both just electromagnetic switches.
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You send power to them to turn them on and off
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and that's as as difficult as it gets
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so i'm going to have a video that's going to come out uh specifically on relays
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that just talks about how all relays work
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and i'm going to cover a bunch of different types i'm going to have another video
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that just covers contactors how they work i'm going to tear them open
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so you can see the insides of them talk about different environments in which you use them
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and then i'm also going to do a video on both
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of these where i'm going to wire each one of them
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and draw some diagrams and show you how they work
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and how the practical application of both of these works out
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so in the next couple of months you're going to see a few different videos on contactors
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and relays so thank you guys so much i really appreciate your attention
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and i will see you in the next episode

Uygulamayı İndir

Akıcı konuşmak için ihtiyacınız olan her şey

AI TelaffuzHer cümleyi puanla
IPA AlıştırmasıHer sesi ustalaştır
Kelime BilgisiKelime bankanızı oluşturun
Kelime OyunuOynarken öğrenin
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Video Öner

Bu dersin kelimeleri ve konuşma notları

Bu konuşma dersi “The Difference Between Contactors And Relays - ELECTROMAGNETIC SWITCHES electricians use” videosuna dayanıyor. En çok tekrarlanan kelimeler: contactor, relay, coil, normally, contact. Bu videoda gölgeleme çalışması için 6 cümle ve 952 kelime var. Konuşma bölümü 5:17 sürüyor. Konuşmacı hızlı konuşuyor, dakikada yaklaşık 180 kelime; bu yüzden birbirine bağlanan ve zayıflayan sesler duyacaksınız. Kelimelerin %84’i İngilizcede en sık kullanılan 3.000 kelime arasında; geri kalanına başlamadan önce bakmakta fayda var.

Bu videodaki önemli kelimeler

Videodan öğrenmeye değer 13 kelime, telaffuzu ve anlamıyla:

KelimeTelaffuzAnlam
coil isim/kɔɪl/makara
rat isim/ɹæt/sıçan, fare
electromagnetic sıfat/ɪˌlɛk.tɹoʊ.mæɡˈnɛ.tɪk/elektromanyetik
wire isim/ˈwaɪɚ/tel
voltage isim/ˈvəʊltɪd͡ʒ/gerilim
suck fiil/sʌk/emmek
tear fiil/tɛɹ/kırmak
pole isim/pəʊl/kutup
magical sıfat/ˈmæd͡ʒ.ɪ.kəl/büyülü, büyüsel
compact sıfat/kəmˈpækt/kompakt
diagram isim/ˈdaɪ.ə.ɡɹæm/şema
contactor isim/ˈkɑntæktɚ/devre açıcı-kesici, kontaktör
volt isim/vəʊlt/volt

Duyacağınız deyimsel fiiller

KelimeTelaffuzAnlam
turn off fiilkapamak
come out fiil/ˌkʌm ˈaʊt/çıkmak

Dikkat edilecek telaffuzlar

Konuşmacı gonna, I'm, they're gibi kısaltılmış biçimleri 23 kez kullanıyor. Bunları duyduğunuz gibi kısa söyleyin.

  • Uzun kelimeler — vurguyu doğru yere koyun: electromagnetic /ɪˌlɛk.tɹoʊ.mæɡˈnɛ.tɪk/, electrical /ɪˈlɛktɹɪkəl/, essentially /ɪˈsɛnʃəli/, auxiliary /ɔɡˈzɪl.(jə).ɹi/, manually /ˈmænj(u)əliː/

Türkçe konuşanların zorlandığı sesler:

  • /w/ — dudaklar yuvarlak, /v/ değil: whereas /(h)wɛɹˈæz/, wire /ˈwaɪɚ/, twelve /twɛlv/
  • Kelime başındaki ünsüz kümesi — araya ünlü eklemeyin: whereas /(h)wɛɹˈæz/, practical /ˈpɹæk.tɪ.kəl/, twelve /twɛlv/
  • /æ/ — “e”den daha açık: whereas /(h)wɛɹˈæz/, amp /ˈæmp/, rat /ɹæt/, electromagnetic /ɪˌlɛk.tɹoʊ.mæɡˈnɛ.tɪk/, practical /ˈpɹæk.tɪ.kəl/

Bu videoyla nasıl çalışılır

  1. Videonun tamamını konuşmadan bir kez dinleyin ve bilmediğiniz kelimeleri not edin.
  2. 0,75× hızla başlayın, cümle cümle tekrar edin ve kolaylaşınca normal hıza dönün.
  3. Kendinizi kaydedin ve orijinaliyle karşılaştırın; coil, rat, electromagnetic gibi kelimelere özellikle dikkat edin.

Gölgeleme Tekniği Nedir?

Gölgeleme, başlangıçta profesyonel tercüman eğitimi için geliştirilen ve çok dilli Dr. Alexander Arguelles tarafından popüler hale getirilen, bilim destekli bir dil öğrenme tekniğidir. Yöntem basit ama güçlüdür: ana dili İngilizce olan bir sesi dinler ve hemen yüksek sesle tekrar edersiniz — konuşmacıyı 1-2 saniye gecikmeyle takip eden bir gölge gibi. Pasif dinleme veya dilbilgisi alıştırmalarının aksine, gölgeleme beyninizi ve ağız kaslarınızı gerçek konuşma kalıplarını eşzamanlı olarak işlemeye ve yeniden üretmeye zorlar. Araştırmalar, telaffuz doğruluğu, tonlama, ritim, bağlı konuşma, dinleme anlama ve konuşma akıcılığını önemli ölçüde geliştirdiğini göstermektedir — bu da onu IELTS Konuşma hazırlığı ve gerçek dünya İngilizce iletişimi için en etkili yöntemlerden biri yapar.

Shadowing tekniği: adım adım eksiksiz rehberi okuyun →