Tony's Transformer DIY pics

[pEN DoTA]

i experienced that using shrinkable tubes,. ok pa naman until now.

[elaijah]

hello boss tony nabuo ko na transformer ko sir. maraming salamat sa tulong.
1 point sa iyo boss.

[Ikasamoko]

Grabe sobrang mahal ng magnet wire dito samin..bumili ako kahapon ng #22 80 petot 100 grams..

[tony]

800 per kilo? mahal nga yan.......dito nasa 650 yan...

[master-D]

nice! 2xxx

[™(◣◢)™]

Good morning po Sir Tony pa guide naman po about dito sa
transformer na nakita ko sa junkshop,
bale ang size po nya
             1inch center leg stacked by 2 inches
gusto ko po sya lagyan ng
 220volts primary
 35-0-35 secondary
ilan turns at ano pong size ng wire na gagamitin?
gagawin po itong pangtesting ng mga inaasemble
ko na ampli.

Salamat po,

[tony]

Good morning po Sir Tony pa guide naman po about dito sa
transformer na nakita ko sa junkshop,
bale ang size po nya
             1inch center leg stacked by 2 inches
gusto ko po sya lagyan ng
 220volts primary
 35-0-35 secondary
ilan turns at ano pong size ng wire na gagamitin?
gagawin po itong pangtesting ng mga inaasemble
ko na ampli.

Salamat po,

1in. cl x 2in. stack, VA = (2 x 5.58)^2 = 124 volt-amperes, at 230v primary, Ip = 124/230 = 0.54A

Np = 1750/2 = 875 turns, #29

turns per volt = 875/230 = 3.8

secondary 35-0-35v, 35 x 3.8 = 134turns, so 2 bifillar coils of 134 turns each, #23 magnet wire....

bobbins are available for a 1 x 2 inch core

[™(◣◢)™]

1in. cl x 2in. stack, VA = (2 x 5.58)^2 = 124 volt-amperes, at 230v primary, Ip = 124/230 = 0.54A

Np = 1750/2 = 875 turns, #29

turns per volt = 875/230 = 3.8

secondary 35-0-35v, 35 x 3.8 = 134turns, so 2 bifillar coils of 134 turns each, #23 magnet wire....

bobbins are available for a 1 x 2 inch core

Maraming Salamat po Sir Tony^^

[pEN DoTA]

marami talaga natulungan c sir tony sa thread na to.

thanks master tony.
1 point for u

[tony]

thanks, kaya nga ako nagtitiyagan mag post, para sa ganoon merong pwedeng magawang pangkabuhayan ang mga kababayan natin....

[kikoman46]

sir tony pkitulungan nmn po ako d2 sa circuit/power supply n project ko sa H900.
sk sir pno mgpost ng pictures?

[tony]

post mo na lang ang requirements mo, di ka pa pwedeng magpost ng pics sa ngayon....pwede rin links muna....

[kikoman46]

sir tony me circuit kb ng auto voltage regulator n aabot ng 5KVA? kung meron sir pwde pki pm po skin ? tnx po

[pEN DoTA]

ang laki ng power requirement ng t.s.

[tony]

sorry wala ako nyan....

[kikoman46]

e sir tony transformer computation po para s auto type transformer n 5kva? size & # of wires needed, thickness & size of center leg.

[tony]

e sir tony transformer computation po para s auto type transformer n 5kva? size & # of wires needed, thickness & size of center leg.

di pa ako nakagawa nito, pero ito ang isang design na pwede...

secondary current at 5kva = 5000/110 = 45.45 amps.....

core size = sqrt(5000)/5.58 = 12.67 square inches, there are many combinations that can fit this, say you have a 2 inch center leg core, so that you need 6.5 inches stack of this core,

but since auto-transformer types are smaller by about 70% then you need about 8.87 or 4.5 inches stack...
nothing stops you from using bigger cores, economy is the prime consideration here....

total turns = 1750/8.87 = 197turns, tap at 98th turn for the 110 volts....

wire size, primary can use a #8, then from 99th turn onward, #6 wire....

you have a 1 x 3 inch window so you can check if your wires can fit the window.....this one i leave up to you....

if you calculate that there is not enough space you can use #7 instead of #6......

[tony]

i received two requests from diyaudio for a power transformer this will be used to power Kanwar's tripple darlington power amp....

1.

Sir Tony baka pwedeng makahingi ng tulong sa computation ng EI core transformer, gusto ko sanang mag diy ng transformer na gagamitin ko sa class H amp na ginagawa ko, ung EI core and insulated copper wire is available dito sa dubai, kailangan ko sana Sir ung size ng EI core na gagamitin, wire guage ng primary at secondary windings at number of turns ng primary at secondary windings. Gusto ko sanang makagawa ng 100-50-0-50-100 AC transformer 3500VA. pwede na kaya sa two channel un Sir?

2.

Magandang hapon po, kaibigan po ako ni marjohn(Mj777) hingi po sana ako ng tulong sayo pag gawa ng power transformer para sa amp ni Mr. Kanwar na tenitesting ni Marjohn ngayon.
Meron na akong EI core(center leg size: 42mm) kaso lang di ko alam ang mga sumusunod:

Primary turns
Secondary turns
Primary wire size
Secondary wire size

Kung meron po kayong link na para mapag-aralan pano gumawa will be grateful po.

requested capacity is 3500va, to determine core area so that we can find out core stack:

core size A =  sqrt(3500)/5.58 = 10.6 square inches,
using and EI-200 with a 2inch center leg, we need to stack 5 inches.....

primary turns at 230volts = 1750/10.6 = 175 turns, #14 magnet wire
secondary turns = (175/230)/200 = 152 turns total,
since there will be 4 secondary coils of 50volts each, each of the 4 coils will have 38 turns each, #12 wire

the 4 secondary coils can be wound in two bifillar groups, the inner group will be your 50-0-50 while the outer groups will be wired in series with the  50-0-50 to form your 100-50-0-50-100....

[enriz622]

sir tony pwedeng patulong gawa sana ako ng transformer para sa charger na gagawin ko,gagamitin ko sa 3sm battery anong size ba dapat ng bobbin,wire at ilang turn ang primary at secondary

[junie]

i received two requests from diyaudio for a power transformer this will be used to power Kanwar's tripple darlington power amp....

1.
2.
requested capacity is 3500va, to determine core area so that we can find out core stack:

core size A =  sqrt(3500)/5.58 = 10.6 square inches,
using and EI-200 with a 2inch center leg, we need to stack 5 inches.....

primary turns at 230volts = 1750/10.6 = 175 turns, #14 magnet wire
secondary turns = (175/230)/200 = 152 turns total,
since there will be 4 secondary coils of 50volts each, each of the 4 coils will have 38 turns each, #12 wire

the 4 secondary coils can be wound in two bifillar groups, the inner group will be your 50-0-50 while the outer groups will be wired in series with the  50-0-50 to form your 100-50-0-50-100....

Sir Tony, maraming salamat. Naghahanap kami ni marjohn ngayon ng EI core kaso parang hindiyata available dito sa dubai :-(..will post the development po. Thanks again.