Thank you,this is very informative. I have an isolation transformer with the same type of setup that you've shown in this video that the manufacture does not explain hoe to hook up.The way that you explain how to wire it in parallel for the output 120v was exactly how i needed to hook this transformer up.
Its simple...When you get your transformer, there should be a sticker on the transformer on how to connect it. The Square D transformer I have is 480/240V and 120/240V. I need 120V. The instructions for 220V are to tie H1/H3 and H2/H4 together. H1/H3 is my line one. H2/H4 is line 2. Then I tie X1/X3 together which will be my hot line. X2/X4 are tricky...Well not tricky. X2/X4 tied together will be your neutral. But make sure you tie X2/X4, (white) wire and a (green) grounding wire, a total of 4 wires together.
Excellent!! Have 240 volt single phase / need 220 volt single phase? The 240 volts is erratic, could read as high as 246 volts, I need 220 within 5% one way or the other. How to?
Kenneth Statkun thanks Ken do you know why you would wire in series on the primary side and then parrallel on the secondary? Why not series on the secondary?
Okay but I want to step up 220V to 480V and trying to figure where the 3rd wire goes. If I understand correctly line power should go to X1 and X4 , bridge X2 and X3 and connect common to both of those. Then the HV side would be H1 and H4 as my line power, and bridge H2 and H3 and connect common to those?
This maybe a late reply and you probably already know the answer. But to straighten things out to the people who are watching. The reason why he said single phase is because from incoming power its 480VAC phase to phase. So if you test Line 1 and Line 2 it equals 480VAC. L2-L3=480VAC. L1-L3=480VAC. So if you wire L1,L2 or L1,L3 or L3,L2 from incoming line voltage to the primary side it will equal to 480VAC. So if he wires in line 1 to h1 and line 2 to h4 it will equal 480VAC.
Sir, Thank you for the explanation.. Do i then need to ground one leg of my secondary to make it a "neutral" and give it current flow? otherwise how would the motor, light, or device run?
On the secondary you can tie together x2 and x3 that will be your neutral and x 1 and x4 will be 120 each and 240 between them also don’t forget to bond neutral to ground to get balanced voltage on both legs
Hi James I need your help. I want to buy used transformers in USA and use it in Africa It reads like this: Pri 480v, secondary 240v/120v. Some say 120/240v. These are dry Square D brand The round ones with oil have different readings. Please help Thanks for your knowledge
@@Seven_LaVergne How am I wrong when I build electrical panels for a living for the past 40 years? I don't care what your teacher says. Everyone's teacher always says something different so there's no point of an argument. What your teacher says is different when you're working on the field.
@@Seven_LaVergne I work with Step down and step up transformers on a daily basis. Ground and neutral depends on the primary voltage that's coming in along with the ties of the secondary coil. X2 and X3 is 240V. X1-X3 (HOT) and X2-X4 (Neutral and or ground). Square D Transformer: PRI V ON LINES CONNECT 480 H1-H4. H2-H3 240 H1-H4 H1H3,H2H4 SEC V ON LINES. CONNECT 240 X1-X4. X2-X3 120 X1-X4 X1X3, X2X4
@@Seven_LaVergne I highly doubt your teacher is UL C1D1 / C1D2 certified. School is just a guide. When you in the work place, you must follow the UL guide lines.
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You did a great job of keeping it simple. Thank you for the insight!
Excellent tutorials Mr. Waymyers! Thanks!
Thank you,this is very informative. I have an isolation transformer with the same type of setup that you've shown in this video that the manufacture does not explain hoe to hook up.The way that you explain how to wire it in parallel for the output 120v was exactly how i needed to hook this transformer up.
Great job at a simple explanation to step up step down single phase transformer helped me out a lot
I just subscribed, like the way you detailed the example but kept it very simple and understandable.
Thank you for sharing this rare and invaluably amazing info Mr. Waymyers!
That was so simple and straightforward, thanks!
Awesome presentation .. Esp for those learning like myself. Thank you
That was so clear and simple... I feel like i learneded...
Great teacher thankd
Thank you! Clear and precise!
Great refresher video!
Thank you,
James
Thank you very much Mr. Waymyers, I wish you were my instructor.
Great Job!
Great Job👍🏼
GOOD PRESENTATION!
Great explanation! Thank you.
Thanks for sharing your knowledge
thank you kind sir, very good teacher btw!
Thanks James, can you break a 3phase down just like that ?
great video
Going to have a floating neutral .. 120v needs to grounded at transformer when starting new voltage.. cannot rely on trans ground alone
Does B phase from the primary need to be landed?
Awesome thank you again
Its simple...When you get your transformer, there should be a sticker on the transformer on how to connect it. The Square D transformer I have is 480/240V and 120/240V. I need 120V. The instructions for 220V are to tie H1/H3 and H2/H4 together. H1/H3 is my line one. H2/H4 is line 2. Then I tie X1/X3 together which will be my hot line. X2/X4 are tricky...Well not tricky. X2/X4 tied together will be your neutral. But make sure you tie X2/X4, (white) wire and a (green) grounding wire, a total of 4 wires together.
What about 480 to 240/120
Excellent!! Have 240 volt single phase / need 220 volt single phase? The 240 volts is erratic, could read as high as 246 volts, I need 220 within 5% one way or the other. How to?
awesome keep the videos coming !!!
The disconnect that the transformer is pulling from is 480 3 phase. by just using any two legs you have single phase 480
Kenneth Statkun thanks Ken do you know why you would wire in series on the primary side and then parrallel on the secondary? Why not series on the secondary?
@@tyzxcj34 Because then you would have 240 Volts.
What about negetive half cycle of primary earthed single phase dist transformer
Thank you James
Okay but I want to step up 220V to 480V and trying to figure where the 3rd wire goes. If I understand correctly line power should go to X1 and X4 , bridge X2 and X3 and connect common to both of those. Then the HV side would be H1 and H4 as my line power, and bridge H2 and H3 and connect common to those?
im confused first you said 480v single phase 1:06 coming in primary side then you said 1:53 480 v 3 phase system coming in please explain thank you
This maybe a late reply and you probably already know the answer. But to straighten things out to the people who are watching. The reason why he said single phase is because from incoming power its 480VAC phase to phase. So if you test Line 1 and Line 2 it equals 480VAC. L2-L3=480VAC. L1-L3=480VAC. So if you wire L1,L2 or L1,L3 or L3,L2 from incoming line voltage to the primary side it will equal to 480VAC. So if he wires in line 1 to h1 and line 2 to h4 it will equal 480VAC.
Phase A and Phase C = single phase 480 he said they were coming from a 3 phase system not that they were 3 phase
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Thanks 🥃😁
Stay safe.
Retired keyboard super tech.
Wear your safety glasses.
thank you
What if in want 240v single in and 2 120v out
Sir, Thank you for the explanation.. Do i then need to ground one leg of my secondary to make it a "neutral" and give it current flow? otherwise how would the motor, light, or device run?
S Jackson
What? I just found a secondary wire going to ground terminal.thought it was WRONG .
Am I wrong ?
X2 and X4 is both your neutral and ground.
On the secondary you can tie together x2 and x3 that will be your neutral and x 1 and x4 will be 120 each and 240 between them also don’t forget to bond neutral to ground to get balanced voltage on both legs
Good explanation!! Thank You!
I need which neutral wire
Hi James
I need your help. I want to buy used transformers in USA and use it in Africa
It reads like this: Pri 480v, secondary 240v/120v. Some say 120/240v.
These are dry Square D brand
The round ones with oil have different readings. Please help
Thanks for your knowledge
Good evening Sir. I desperately need a teacher like you how can I reach you ?
wait a minute, he first said 480v three phase then he said 480v single phase which one is it🤔
480 single phase wtf lol
I've used to H1,H2,H3 and X0,X1,X2,X3, where is the H4 and X4 coming from?
H stands for High Voltage which is on the Primary winding of the transformer. Mainly because most transformers are step down.
Would x4 be the neutral?
X2 and X4 tied together will be both your neutral and ground.
@@DreamFlightPro dude your wrong. My teacher said ground and neutral would be tied to x2 and x3
@@Seven_LaVergne How am I wrong when I build electrical panels for a living for the past 40 years? I don't care what your teacher says. Everyone's teacher always says something different so there's no point of an argument. What your teacher says is different when you're working on the field.
@@Seven_LaVergne I work with Step down and step up transformers on a daily basis. Ground and neutral depends on the primary voltage that's coming in along with the ties of the secondary coil. X2 and X3 is 240V. X1-X3 (HOT) and X2-X4 (Neutral and or ground).
Square D Transformer:
PRI V ON LINES CONNECT
480 H1-H4. H2-H3
240 H1-H4 H1H3,H2H4
SEC V ON LINES. CONNECT
240 X1-X4. X2-X3
120 X1-X4 X1X3, X2X4
@@Seven_LaVergne I highly doubt your teacher is UL C1D1 / C1D2 certified. School is just a guide. When you in the work place, you must follow the UL guide lines.
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