automatic changeover switch for generator

Automatic changeover shifts to generator load automatically
after the absent of all three phases of mains and when the
generator is started. If any of the phase from mains side
returns the generator goes on no load condition and load
is automatically shifted to main section.
Magnetic Contactor
magnetic contactors are a form of electrical relay found on
most electrically powered motors. They act as a go-between
for direct power sources, and high-load electrical motors
in order to homogenize or balance out changes in electrical
frequency which may come from a power supply as well as to
act as a safeguard.
MCB Miniature Circuit Breaker
mcb are electric mechanical devices which are used to protect
an electrical circuit from an over current. It can be closed
without any hand-operated restoration. MCB is used as an option
to the fuse switch in most of the circuits.
Generator used for
in electricity generation a generator is a device that converts
motive power (mechanical energy) into electrical power for use
in an external circuit. Sources of mechanical energy include s
team turbines, gas turbines, water turbines, internal combustion
engines wind turbines and even hand cranks.
THANK YOU VERY MUCH WATCHING THIS VIDEO
if you have any questions please comment on
video and subscribe this channel
/ @jrelectricschool
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[@rahulgawade2274]

When main power comes back then also load will run on generator....main power contactor will not latch again...you have to add one relay which latch on main power and use its NC contact in series with main contractor's NC to latch/unlatch generators contactor and one on delay timer which runs on main power and use its NO contact in series with generator contactors NC to latch/unlatch the main contactor again......then it will be automatic.(priority should be main power) and also have to think about how generator will start at the time of main power failure.

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@erdoganturk9262]

2 time relays should be installed in this system to prevent the phases from colliding.thank you.

[@JrElectricSchool]

you welcome

[@jeanamosjocelyn188]

That Shure

[@adranyainickson2180]

Don't you think we need a mechanical interlock between the two contactors to avoid electric Sparks at the event when utility power comes back while the gen.set is running.
Just asking anyway...

[@mouaad252]

Works in theory but not in practical case. Timer relay needs to be added in order to avoid generator receiving power from the mains. It can happen because contactors aren't perfect. They make a small time to switch state.
Finally we have to figure out how to make the generator start/shuts automatically. I think best solution is to use a small plc with UPS

[@JrElectricSchool]

Thank you so much for share your opinion

[@user-hh1if5cp2x]

Thank you for the clear explanation. I wish you success. Please, what is the name of the program that you are explaining and drawing on?

[@JrElectricSchool]

we are used animation

[@nandikadharmaraju1624]

Der sir oldwiring bulding ku invertor ela add cheyali telapandi

[@gtechninja]

The problem is we cant see the contractor pinout names. But u did absolutely right. Do u know how figured out. By zooming you video to see the pinout names.

[@JrElectricSchool]

i will try to making this video zooming
Thank you

[@dikisound5401]

Menurut saya itu wiring masih salah, karena saat listrik padam kontaktor langsung membuka jalur genset tanpa menunggu jeda sedangkan genset masih kondisi start, alat listrik akan langsung short, karena tegangan dan frekuensi genset masih rendah.

[@shamimahmed4017]

If u do not use a time delay in between the changeover, the circuit breaker may often trip. My practical experience.

[@patrickrooney8225]

I would recommend that the two contactors are mechanically interlocked as well.

[@JrElectricSchool]

Thanks for share your opinion

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@gtechninja]

They are interlocked. If you want to see it. Just zoom the video. The connection is just like this from mains phase on main contractor coil A1 to generator contractor Nc then back to main line/phase. The same for generator. Black wire to coil A2 independently

[@patrickrooney8225]

@@gtechninja They are not mechanically interlocked. Yes they are electrically interlocked but to ensure there is no possible way the utility side supply could ever be connected to the generator supply this transfer must have a mechanical interlock that will not physically allow both to connect.
www.google.ca/url?sa=i&url=https%3A%2F%2Fca-en.alliedelec.com%2Fproduct%2Fsiemens%2F3ra1954-2a%2F70269936%2F&psig=AOvVaw3zIp-BkRbYLnrei48vDQeo&ust=1597145369327000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCMCejK3EkOsCFQAAAAAdAAAAABAD

There was a bad connection. Generator is not disconnected when the main energy returns. the generators continue to feed

[@accetv.amv.mlbb.animation]

Enterlock Circuit . Nice M.contactor .

[@JrElectricSchool]

You are right
Thanks for watching

[@alesinloyeoluwaseun42]

The contactor is 12v or 24v

[@codybrasil]

Very simple but the generator has to be on, and will take the load when the main line is cut. To be more automated it would need like a button on the generator that its contacts are passing though the auxiliary contact on the contractor, that way when it closes the auxiliary contact is like pressing the button “on” on the generator!

[@bongiwekubheka9126]

Hi is it possible to get 3kV DC on the substation if there is a loadsheeding, using this system?

[@owusucaleb5682]

great one, keep it up

[@JrElectricSchool]

Thank you so much

[@georgeowiti2475]

Hi engineer I built a automatic change over switch using three contactor's using three phases of power to switch the power to one load but at some point the two contactor's become on what should be done to avoid the same

[@carlosivanhurtadotaborda]

Muy interesante gracias

[@barghkaveh]

Which of software do you use for making this animations?

[@JrElectricSchool]

we are used animation
Thank you.

[@barghkaveh]

@@JrElectricSchool PowerPoint animation?

[@saadsaleem5784]

Samj to ai ha but app ko btana chahiye tha k NO point py lgai ha ya NC point py wire...
Na hi yeah app ny show krwaya MC ko zoom kr k...

[@mrhamzajaanielectrician7815]

Very nice 👌👍😊

[@JrElectricSchool]

Thanks a lot 😊

[@susantapramanik718]

Very good sir. But if u give us circuit. It will be better.

[@JrElectricSchool]

i will try
Thank you

[@joshliggayu8442]

is it automatically turned on th generator if theres a power off?

[@user-pq5qs1bt7y]

Good job. عمل جيد

[@JrElectricSchool]

Thank you! Cheers!

[@getec_GETEC]

Good explanation 👍

[@JrElectricSchool]

Thanks 🙂

[@_lifeinflow_]

Can this be used for a Westinghouse 9500 generator and a 6000 watt pure sine inverter that has gen start wire ports to recharge our 24 volt 300 hr battery? In other words we are looking for away for when our battery gets run down the inverter kicks on the generator to charge the battery.
Your facts please.

[@amitmallick9331]

Bro me ek technician hu mera liya ye video helpful he,ager divice ka nam bata deteto bohot aacha hota,bro rlp diziyaga plz😊

[@JrElectricSchool]

ape kes divice ke bare me janna chate ho?

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@sreler499]

Bravo!!! Thanks👍

[@JrElectricSchool]

my pleasure!

[@jimmygadau6212]

hello. i need your help i really dont understand how is a connection
being automatic. just look, take consideration at a time all the supply
power ( main and generator) are ON. unfortunately the main power getting
OFF. of course according to connection the generator power will
continue to work. but when a main power returns the current will flow
toward a NC of the generator contactor ,Which is by the time the NC of
the generator becomes NO so it will not allow the current to flow direct
to main contactor coil. hence in order to a main contactor to be ON the
generator should be put OFF manual. so how is a system termed as
automatic?. please help me may be i didnt understand

[@mnroosthuizen7893]

Halo. Can you please show a video on doing outdoor lighting please

[@JrElectricSchool]

i will try to make video on your topic.
Thank you

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@deanliebenberg9617]

This is not a ATF switch. Ja sure when mains fails the C1 will unlatch and you start the generator then C2 will latch but when mains return it will stay on generator feed until you stop the generator. Add 2x timers to the circuit that handles the change over with a time delay to protect your installation from switching between primary and secondary feed.

[@smartchannel9534]

Sound is very good

[@JrElectricSchool]

Thank you

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@juanflores-st4mi]

Contactos auxiliares tienes que nombrarlos si es NO ,NC de cada contactor si es monofasico o trifasico

[@JrElectricSchool]

Thank you so much for share your opinion

[@Technicalarunji]

Kaun se software se ye animation banate hai plz🙏 Help me

[@JrElectricSchool]

filmora wondershare,sony vegas pro,
adobe after effects,adobe premiere pro,
adobe photoshop,microsoft office.

[@Technicalarunji]

Please provide your content no

[@AbhishekSiingh666-bl8ey]

Sor contractor ka pin out karte thoda to jayada achha samjh aata, and video ke sath agar explanation dete to jayada clear ho jata kyonki last me jo apne interchange karne ke liye connection kiya wo clear nahi hua ki kyu kiya aur kaise kiya.

[@JrElectricSchool]

please ape aschese video ko deke ya ape ko samag ajayge

[@Electrical_guru21]

kon se software me animation video banate ho bhai

[@JrElectricSchool]

ham bhot sare software use karte he videos banane ke leya

[@ibrahimabubakar2848]

Sir keep up, and I like pls sir how can I get diagram text book.

[@JrElectricSchool]

sorry

[@extrememovies944]

What are the electrical components are use in the diagram?

[@engr.aslamhosen5259]

Fine page
Good post

[@JrElectricSchool]

Thanks

[@3tpculp]

That's what I like about Sketch software, taking minutes to explain something that would normally take seconds.

[@fouadbenameur8395]

Waaaw thenk youuuuuuu

[@JrElectricSchool]

Thank you ! keep watching

[@jimmygadau6212]

the connection is nt usefull. waste

[@Electrical_guru21]

good video

[@JrElectricSchool]

Thank you very much

[@rejishk3274]

In this the load doesnt connect to mains automaticaly after the power failure, it do only after stops the DG manually.

[@JrElectricSchool]

Thank you so much for share your opinion!

[@paullumiti7264]

That true help me see it.. it's manual not auto since no any communication to the generator

[@gunroses8593]

Mantap gaes

[@Iamelagbe]

Pls can you kindly be adding voice lessons to the diagrams to make it easy to understand

[@JrElectricSchool]

Thank you so much for share your opinion i will try

[@Iamelagbe]

@@JrElectricSchool
Ok... Thank you

[@arvindchauhanlife5516]

Sir how you draw and how u get mcb on screen which software sir teach me sir

[@JrElectricSchool]

we are used animation

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@KuyaRogers]

Nice bro

[@JrElectricSchool]

Thanks

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@apurbaelectrical5144]

But how it automatically works it looks like Manual.. How can we wire to work automatically.

[@JrElectricSchool]

i will try to make video automatically no off.
Thank you

[@user-cz6ll4ow8r]

Très bn cours

[@publicunion880]

Wow fantastic 💝😌☺️😊

[@JrElectricSchool]

Thank you so much

[@mntv_jurnalis]

Super... 👍

[@JrElectricSchool]

Thank you so much

[@mntv_jurnalis]

@@JrElectricSchool Subscribe my akun @Suhardi Madhani,.. Thanks... 🙏

[@mariceltorres6633]

Sir paano Po Yung 2pole na ats for generator,,,saan poba kinakabit Ang ats sa tabi Ng main breaker,or sa Tabi Ng generator,pa advice po sir

[@arifriyadvlog363]

nice

[@JrElectricSchool]

Thanks

[@kemarchdoddmagic8592]

Very nice

[@JrElectricSchool]

Thank you very much!

[@aamhicdeena3202]

I understand pictorial diagram ...in pictorial diagram u connect the wires to contactor terminal but connecting which terminal NO or NC ?
I drew schematic diagram and understood ...but many peoples may be confused, So please provide schematic diagram (control circuit and power circuit or ladder type) end of the video please???

[@JrElectricSchool]

Thanks for share your opinion
i will try

[@hildadorn3435]

Of course its a NC contact.
Its an electrical interlock protection. I will add a mechanical interlock too as additional protection.

[@quickfixengineeringltd8035]

You could easily have labelled those points on the contactor's

[@Arbazkhan-js2im]

Sir ji is trick se power supply aane pr generater automatic off or power supply jaane pr automatic on bhi ho jaega reply plzz

[@JrElectricSchool]

yes

[@wajidinteriordesign]

Sir ap kis software pr ye vidio bnaty

[@JrElectricSchool]

animation

[@wajidinteriordesign]

@@JrElectricSchool thanks sir

[@djchino7724]

In simple terms... automatic transfer switch.. primary as grid in. Customer load as common. Gen as back up

[@JrElectricSchool]

Thank you so much for share your opinion

[@devas6709]

Super bro

[@JrElectricSchool]

Thanks

[@pankajkumbhare6117]

Namshkar Sir
3 rooms, house, kitchen
Load MCB,
1 room fan, 2 tube light, 1 Bulb
2 room fan, 2 tube light, 1 Bulb, AC
3 room fan, 1 tube light, 1 Bulb
Kitchen fan, 2 tube light, 1 Bulb, freezer,
Single poleMCB Kitane ka lagaye 10 Amp 16 Amp kitane Amp ka MCB lagaye & 2 pole MCB, RCCB Amp lagaye es ka 1 video banaiye na Sir

[@JrElectricSchool]

ape 2 pole mcb lagaye 32amp or rccb32apme
or single pole mcb 10amp lagaye.
Thank you

[@pankajkumbhare6117]

@@JrElectricSchool Thanks you Sir...🙏🏻

[@anilshane2295]

Poltry 30 kv genrtor kitne amp ka comtacter lena chahiye

[@vidharsana.p4957]

Clear understand bro... this is income supply not come.. Generator ON OK... But incase income come not work ..manul off

[@JrElectricSchool]

Thanks for share your opinion

[@letstalkaboutanything]

ac supply and generator supply also on at the time which supply go to output
this diagram is anyone supply cut at the time work
but both supply on at the time contactor how to work

[@JrElectricSchool]

interlock
Thanks for watching

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@NizamNizam-ot4tg]

Thanks

[@JrElectricSchool]

Welcome

[@ZariahKalilombe-no3yu]

this is beautiful

[@manjujackie8066]

Super

[@JrElectricSchool]

Thanks

[@giftchigozie2777]

What if my generator is on and there is utility light restore that means it will be powering by gen and change to mains supply and back to gen

[@runbou3019]

ល្អgood

[@JrElectricSchool]

Thank you

[@HectorMartinez-eg9ec]

Good bro

[@JrElectricSchool]

Thanks

[@elwirahmadi6651]

fast forward till the end. so borring. but usefull

[@JrElectricSchool]

Thank you

[@alesinloyeoluwaseun42]

Is not usefull please don't try it at home ur generator will blast

[@manielecplumbingmanigandan3453]

Super g

[@JrElectricSchool]

Thanks

[@sabbirahamed8088]

good Video but no nc problem

[@JrElectricSchool]

Thank you so much for share your opinion

[@billpataki8390]

Great

[@JrElectricSchool]

Thank you

[@alexgitau143]

It seems that there's short circuit at the contacters as the AC is meeting DC

[@user-zc3ro8wd6j]

Молодец яхши чикбди

[@JrElectricSchool]

sorry i am not understand your language
please tell me Bangla,Hindi,English
Thank you.

[@yogendrakumaryadav4079]

Nice

[@JrElectricSchool]

Thanks

[@franzcortez1601]

Give the details how many ampers the contactor

[@JrElectricSchool]

60 Amp contactor

[@adiloujjat829]

Vedio
Tooop

[@JrElectricSchool]

Thank for watching this video

[@scowlsmcjowls2626]

Hang up the pliars my man you ment to draw

[@chavahernandez6508]

What does the switch do

[@bandarirakesh2705]

Name it for every instrument and say detail about each part

[@JrElectricSchool]

Thanks for your opinion
i will try

[@khanshabahuddin2513]

Contactor
Dp mcb

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@roshanbara5667]

बिना नाम दिए कया चित्र बनाया, कुछ तो नाम हो आदमी कया समझेगा

[@basicelectrical3655]

th-cam.com/channels/owxc6ikTiZqoIekSQGxjUQ.html

[@pyaehtetaung9336]

Useless. Don't do like this! Must be use one relay for power incoming on/off sensing.

[@hendrik2128]

Automatic star generatornya mana bos,,?ini cuman interlock saja supaya listrik PLN dan generator gak beradu,kalau kya gni mau jadi automatic changeover berati generator harus hidup terus..

[@SanjayVerma-qs9nc]

Bhai ji isme timer or main aane par dg cat realy kaha hai

[@quanleinh9908]

Bạn lắp đi dây vào CB ngược à?

[@JrElectricSchool]

sorry i am not understand your language
please tell me Bangla,Hindi,English.
Thank you.

[@brianmajola1808]

It’s the song 🎵 for me 🤪

[@Johan-bc9nl]

my ideal usa manuaL OPERATE ;; DOUBLE THROW DOUBLE POLE ;;; EASY TRANSFER FRM FRIVATE TO GENERATOR

[@JrElectricSchool]

Thank you so much for share your opinion

[@shailendra4880]

Not proper explain, this video make confusion. It's ready made device for automatic on off genrator. You should provide live demo for this.

[@JrElectricSchool]

i will try
Thank you

[@randorguerrero6023]

well done!!!

[@JrElectricSchool]

Thank you

[@randorfja]

nice music but the drawing is way too slow.

[@JrElectricSchool]

Thank you

[@stevemarx1646]

Totally redic...where's the mechanical interlock?? And you're going to run that portable generator 24/7/365??

[@lah191]

Describe lo en español gracias

[@randyortega9545]

Poor diagram. What are those things? A relay? Magnetic contactors? I wii be the one to teach you.. i k know how..

[@JrElectricSchool]

Thanks you so much for share your opinion

[@interestinginformation4337]

Why don't you use just a relay

[@JrElectricSchool]

even if it is not used
Thanks for watching

[@ManojKumar-lr1sh]

गूंगे हो ऐसी चीज का क्या मतलब जिसका कोई विवरण न हो.

[@MrSolisworks]

There is not automatic. Is only a electric interlock. How start and stop the generator?

[@JrElectricSchool]

manual

[@ridwanchannel7552]

Bagaimana caranya agar genset tersebut bisa hidup secara automatis

[@vidharsana.p4957]

Please need to fully automatic...

[@JrElectricSchool]

Thanks for share your opinion

[@gianfrancopaparella9218]

Sir, main supply input must always be attached at the top of a differential and magnetotermic devices, and the output at bottom.
The same is for power contactors!!!!
This is an electrical normative!!!!!! So you made a very very big Mistake.
Sorry, but this is!!!!!!! To next!!!!!!

[@JrElectricSchool]

Thank you so much for share your opinion

[@cookieboi4449]

Mains attached on top as input!!! only if marked such,,, there are many RCD which can be wired top or bottom as long as A and N are wired as marked. For contactors it doesn't matter whether which way in or out.

[@voltaelectric6620]

Can I ask you something by email ?

[@JrElectricSchool]

[e-mail]

[@leematthews6150]

This wont work!
Look at Right Contactor, when the Main Power Supply returns, the Right Contactor is still energized thereby keeping
the NC points in an Open State, preventing the Left Contactor from energizing.
It will automatically switch from Mains to Generator, but it will not switch from Generator to Mains when the power returns.
Adding a Timer with a 1 Second Delay will resolve this.