This can be done from first principles using 1T for the peak flux density in the iron core. Since the mains voltage is sinusoidal, the magnetic flux is also sinusoidal. The induced voltage per turn is equal to the rate of change of flux. Therefore: b = B.sin(2.pi.f.t).........(b instantaneous flux density, B peak flux density) The rate of change of b is equal to the instantaneous voltage per turn: v = B.2.pi.f.cos(2.pi.f.t) Peak of cos = 1 => peak v = B.2.pi.f => RMS v = B.2.pi.f./sqrt(2) => RMS v = sqrt(2).B.pi.f => Peak B = v(RMS)/[ sqrt(2).pi.f ] B is in Webers. If we use Teslas, we include the area: B = Area * Flux density B = A*T A.T = v(RMS)/[ sqrt(2).pi.f ] T = v(RMS)/[ sqrt(2).A.pi.f ] If we use 50Hz as f, in your case, you are assuming a maximum flux density of: T = (1/4.4) / [ sqrt(2)*9.45e-4*3.142*50 ] T = 1.82 Teslas
Is magic number "42" works for any gauge of wire? I want to make one which is 100V input and 100V output with power of, perhaps, 300VA. How to decide the wire and how can I know how much power it can drive?
good day bossing. may 1.5" x 4" ako na bobbin ererewind ko sa #16 na wire sa primary. gamitin ko pang spot welding. mga 3 to 6v ang secondary sa malaking wire #8 cguro. mga ilang turn ang primary, 220to 230 ba?
Hello sir, can i ask? What is the size of core wire primary and secondary and how many ampere the transformer? Hope you answer my question.. thank you☺️
hello mr i am an intern i am in ivory coast. I wanted to know how to determine the wire diameter of a primary and secondary inverter transformer. example case of a 1000w transformer
Howdy. Ona may use the current density of about 3 Amp.s per square millimeter wire cross-section. A small trafo may use a slightly larger value as lamination surface area to air per amount of core mass is larger. A large trafo say about 250 VA should use a smaller value, say, 2,5 Amp.s per square millimeter. Regards.
@electronics help care Wrong, tpv depends from core material/it's B paremeter.... I know that my transformer has 1.3T, so I tried ur method and i got over 900 turns, then I calculated Np using B parameter and I got 768 turns, so... ;)
Good morning sir ji mere pass contactor ki coil hai jo 100-220 VDC par opreate hoti hai but mujhey yeh coil ac 220 volt par operate karni hai to pls aap winding ka formula batain pls
Nowhere. This is a HIGHLY unreliable video... to make proper transformers, you need to involve calculus and proper mathematics with an unde Of electromagnetism. You can find the legit formulas online.
You have good knowledge and skills but your windings is very rough. Why don't you use machine. It's very simple to build. Attachment of reed switch makes it easier to count the windings, diy with calculator connected to reed switch.
🤔🤔Sir, 220 voltage is equal to 968 turn. Therefore, if we need 5 tips of wires, each tip of wire will be 193 turn of wire right..? 968 turn ÷ 5 = 193.6 turn wire.😂😂
4.4 is the core calculated 4.5cm x 2.1cm = 9.45cm 42x9.45 = 4.4 cm And depending on your wall voltage You times that by 4.4 So US is 110vac 110 x 4.4 = 484 turns per volt Euro 240vac 240 x 4.4 = 1056 volts per turn This is all primary Secondary if say 24 0 24 Then 24 x 4.4 = 106 volts per turn
This guy broke all the rules of transformer winding. He is calculating the turns per volt of the transformer by 42/Area, whereas the real formula is N=1/(K*Bm*f*A)[K=constant, K=4.44) Here Bm stands for flux density(1-1.2 web/sqm for normal EI Core) f = frequency in Hz A = Area in sq-m N=Number of turn(s) for one volt.
Наука
electronicshelpcare.com/wire-gauge-transformer/
Got it. Thank you.🥰🥰
Awg or swg size?
Please, your gauge number of wire sir.
Thanks man. Best transformer explanation video found in youtube so far
How to know the thickness of the wire to be used in the primary and secondary windings?
This can be done from first principles using 1T for the peak flux density in the iron core. Since the mains voltage is sinusoidal, the magnetic flux is also sinusoidal. The induced voltage per turn is equal to the rate of change of flux.
Therefore:
b = B.sin(2.pi.f.t).........(b instantaneous flux density, B peak flux density)
The rate of change of b is equal to the instantaneous voltage per turn:
v = B.2.pi.f.cos(2.pi.f.t)
Peak of cos = 1
=> peak v = B.2.pi.f
=> RMS v = B.2.pi.f./sqrt(2)
=> RMS v = sqrt(2).B.pi.f
=> Peak B = v(RMS)/[ sqrt(2).pi.f ]
B is in Webers. If we use Teslas, we include the area:
B = Area * Flux density
B = A*T
A.T = v(RMS)/[ sqrt(2).pi.f ]
T = v(RMS)/[ sqrt(2).A.pi.f ]
If we use 50Hz as f, in your case, you are assuming a maximum flux density of:
T = (1/4.4) / [ sqrt(2)*9.45e-4*3.142*50 ]
T = 1.82 Teslas
Get out , u nerd 🤓
Very nice video made by you thanks
Now I understand why you use 42. It is the transform barrier rule. Thank you very much for teaching so well
Whatsapp= +8801980060190
electronicshelpcare.net/how-to-calculate-wire-gauge-for-transformer/
could you please explain the core Area and how we determine the cross section from datasheet that would be so helpful
Is magic number "42" works for any gauge of wire?
I want to make one which is 100V input and 100V output with power of, perhaps, 300VA.
How to decide the wire and how can I know how much power it can drive?
Thank u so much very help full video,
Please visit for circuit diagram
www.pinterest.com/electrohelpcare/pins/
Really helpful...😊
How to know the guage of wire to be use in primary and secondary windings?
Same problem
How many turns to get 12v on the secondary winding
Does your constant (42) applies to other countries like for example the Philippines?
How to know the size of magnitic wire use in premary and recondary?
good day bossing. may 1.5" x 4" ako na bobbin ererewind ko sa #16 na wire sa primary. gamitin ko pang spot welding. mga 3 to 6v ang secondary sa malaking wire #8 cguro. mga ilang turn ang primary, 220to 230 ba?
excellent!...…... thank you
Bro where do u get those bobbin and core please tell me ..
Hello sir, can i ask? What is the size of core wire primary and secondary and how many ampere the transformer? Hope you answer my question.. thank you☺️
What should be the thickness of the primary and second coil copper wire. What is Swg?
From where did you get that 42 number
Very good nice best for new
Thanks for your comment. please visit here for wire gauge electronicshelpcare.com/wire-gauge-transformer/
For toroidal transformer is not 42 but under 42 , 30 is good . We use 42 for traditional transformer with E and I , Ok
Thanks more wisdom
we're do you get the lamination and bobins? is it a trade secret?
Please help how can i used 42 if my product is 45.22 thank you
If my coil winding surface is round, then what i do, plise help me
Thanks
Good job , ALLAH BLESS U AND MAKE FAMOUS IN YOUR KNOWLEDGE , AAAMIN
No not aaamin but aamiin
Sir how to wind for 0v,10,20,30,40,50,60volts for secondary?
hello mr i am an intern i am in ivory coast. I wanted to know how to determine the wire diameter of a primary and secondary inverter transformer. example case of a 1000w transformer
How to wind electro magnetic vibratior
How to determine the gauge of wires for primary and secondary
Howdy.
Ona may use the current density of about 3 Amp.s per square millimeter wire cross-section. A small trafo may use a slightly larger value as lamination surface area to air per amount of core mass is larger. A large trafo say about 250 VA should use a smaller value, say, 2,5 Amp.s per square millimeter.
Regards.
nice
Good
Hello make video with calculation for step up step down transformer plz
Size of wire guage , core and bobbin also an important part in Transformar making. (No need for re winding)
electronicshelpcare.net/led-music-level-indicator-circuit-diagram/
sir gud day anong wire kailangan ko na sukat na wire ng gingawa ko transformer ay 2.6 cm x2.6cm
How ampear is decided??
Sir pwede malaman yung gauge ng wire sa primary and secondary
Thank you sir for 42 formula but please tell the wire number
@electronics help care Wrong, tpv depends from core material/it's B paremeter.... I know that my transformer has 1.3T, so I tried ur method and i got over 900 turns, then I calculated Np using B parameter and I got 768 turns, so... ;)
Hii broo how to add more transistor on amplifier board
Stereo version me dikhao sirp mono board me dikha raheho
Where is buy transformer bobbin and EI core?..
Pure vire ke dono chhoro ko nikala hai plz reply
Una pregunta el vonvillo es de 110v de entrada si 60w de consumo
electronicshelpcare.net/led-music-level-indicator-circuit-diagram/
Can i use 25 swg wire as primary 220v and 14 swg for 50-0-50v as secondary?
3 phase transformer 25 kva
11 kv primary
440 secondryper video banao
Super
How to find a gauge of a toridal transformer...? SIr I want full information
electronicshelpcare.com/wire-gauge-transformer/
Copper wire how many mm?
Thank you for mean 42. I said prev video, what is the 42.
thank you very much for ansver in this video :)
Yes what is 42? What kind of rule is it?
42 is frekwensi AC 220v
@@mas__koetm9151 frekwinsy hahaha
42 is total BS. Whoever made it up doesn't know wtf they are doing
You can put subtitles in spanis? Pleas?!
Is 42 constant???
interesting
How to modify ups transformer
Anyhow put wire gauge??
Sir, agar issme liquid barnish use karna hai toh kaise karu, yea nehi karu. Plz. sir reply di jeye .
It not need to use liquid warnish.
SWG wire size???
incomplete wire size ampere???
Will it work if I use 3mm as secondary winding?
🙋👍👍👍
1:44 if bulb is glowing then what i do
Good morning sir ji mere pass contactor ki coil hai jo 100-220 VDC par opreate hoti hai but mujhey yeh coil ac 220 volt par operate karni hai to pls aap winding ka formula batain pls
220vac par operate karni hai
How to calculate bobbin size...like 100watts ,300watts,500watts ...
Transformers. Pl explain.tq
Please visit for circuit diagram
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👍👍👍
electronicshelpcare.net/led-music-level-indicator-circuit-diagram/
Nice 😱😱😱😱😱😱😱😳😱😱😳👍👍👍👍👍👍👍👍👍👍👍👍👍
Wire what mm gage primary & secondary
👌👌👌👌👌👍👍👍👍👍🙏🙏🙏
Thank you sir for 42 formula please wire number tell
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24 - 0 - 24 ke alaawa 2 wire kis liye?
Ampear calculation
Sir how to number of magnetic wire primary in secondary sir
3mm
Wire guage ka formula nahi aata he Kya kitne guage ka wire lagega.
Please visit my RUclips Chanel and watch video regarding your question
42 figaro kaha se a aaya please tell
where does number 42 come from?
Nowhere. This is a HIGHLY unreliable video... to make proper transformers, you need to involve calculus and proper mathematics with an unde Of electromagnetism. You can find the legit formulas online.
Sir,42 ki jagah 7.5 bhi ho sakta hai
kong koi lah..🤣🤣
You have good knowledge and skills but your windings is very rough. Why don't you use machine. It's very simple to build. Attachment of reed switch makes it easier to count the windings, diy with calculator connected to reed switch.
Please visit for circuit diagram
www.pinterest.com/electrohelpcare/pins/
Vai wire gage namber ta bolle valo hoi nahole bujhbo kmne ampere
Primary ,secendory war ka geaug number keya hai,bol
How to calculate bobbin size
Please visit for circuit diagram
www.pinterest.com/electrohelpcare/pins/
তারের গেজ কি রকম দরকার তার হিসাব কি করে করব? অ্যাম্পিয়ার হিসাবে
কত নাম্বার তার ব্যাবহার করেছেন ভাই।
110. 220 ટ્રાન્સફોર્મર વાલા વીડિયો દીખાવો
Hi Copper awg number plz bro
আমার শিকার অনেক ইচ্ছে ছিল
🤔🤔Sir, 220 voltage is equal to 968 turn. Therefore, if we need 5 tips of wires, each tip of wire will be 193 turn of wire right..?
968 turn ÷ 5 = 193.6 turn wire.😂😂
Sir wire kitne swg k lene honge
Please visit for wire gauge electronicshelpcare.com/wire-gauge-transformer/
Please visit my RUclips Chanel and watch video regarding your question.
Why others use 7.5 as a winding constant rule
Pls send me the diagram
50/9.45=5.3
Brother please tell the thickness of the wire
SWG?
Rabby
anong sized ng wire
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Nice video sir but aawaz k bina bekar hai
Thank you sir for your comment. Please visit for new www.electronicshelpcare.com
Please visit my RUclips Chanel and watch video regarding your question
What is 4.4
42/9.45=4.4444
4.4 is the core calculated
4.5cm x 2.1cm = 9.45cm
42x9.45 = 4.4 cm
And depending on your wall voltage
You times that by 4.4
So US is 110vac
110 x 4.4 = 484 turns per volt
Euro 240vac
240 x 4.4 = 1056 volts per turn
This is all primary
Secondary if say
24 0 24
Then 24 x 4.4 = 106 volts per turn
Where is your voice?
How to know total weight of magnetic wire per size? I want to buy exact length only. Tnx
hahaha.. nag vovlog.. dito klang pla nag cocopy ha..🤣🤣🤣 now i know.🤣🤣
Isme se awaz aa rahi hai bhai
Sir mere ek transformer banana he to plz.to tumhare nombar send halp mee 🙏🙏📞
This guy broke all the rules of transformer winding. He is calculating the turns per volt of the transformer by 42/Area, whereas the real formula is N=1/(K*Bm*f*A)[K=constant, K=4.44)
Here Bm stands for flux density(1-1.2 web/sqm for normal EI Core)
f = frequency in Hz
A = Area in sq-m
N=Number of turn(s) for one volt.
why 42?
Please visit for circuit diagram
www.pinterest.com/electrohelpcare/pins/