How a Transformer Works 3D
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- เผยแพร่เมื่อ 3 ธ.ค. 2022
- This 3D animation shows how a typical 40VA residential or light commercial transformer works. Transformers can either step a lower voltage up to a higher voltage or step a higher voltage down to a lower one.
In this case, the transformer primary has three taps: common, 208V, and 240V; you will tap a transformer to match the voltage of the power entering the transformer. Power enters a transformer through the primary. The primary and secondary windings don’t touch each other; they rely on an electromagnetic field to transfer energy from the primary to the secondary (induction).
The primary and secondary are both coils of copper wire wrapped around an iron core. The ratio of wraps between the primary and secondary determines how much a transformer steps up or steps down the voltage. When there are 10x fewer wraps on the secondary winding in a transformer with 240V incoming power, the stepped-down voltage will be 24V.
You may also use an ohmmeter to ohm out the primary if the transformer is de-energized and has its primary and secondary disconnected; on a step-down transformer, the resistance will be higher on the primary than on the secondary due to the greater number of wraps. The resistance will also be higher on a transformer tapped to 240V than 208V with the same secondary voltage.
In the case of a failed primary, the ohmmeter would read OL. If there is a short, you will read a path between the terminals and the transformer casing. Blown fuses are commonly misdiagnosed as failed transformers.
You can also measure the voltage inputs and outputs while a transformer is energized to help troubleshoot it.
Read all the tech tips, take the quizzes, and find our handy calculators at www.hvacrschool.com/.
Always good information! Keep up the good work 💪
Man those graphics are fantastic.
Did you understand it?
@@someskinnydude100 i did
@@jasonjohnsonHVAC I'm having a hard time understanding a few things when it comes to alternating current. Why would we want to know why inductors or capacitors lag or lead the voltage?
@@someskinnydude100 power factor
Amazing level of graphics
great vid, crazy awesome graphics
Very cool video
I love to learn about working on hvac systems
Outstanding explanation and illustration!👍
thank you for share us you are great teacher
Amazing. So if there would be a short what would the ohm reading be
Thank you for the way you explain things which is so transparent.
Great video
Awesome, I love these type of videos!! Great job!!
love the easy explanation
Well explained.
These people are outstanding and extraordinary!!!! Thanks!!!
I watch all your stuff. Love the 3D stuff as I’m a visual learner.
Great content, delivery, and retainable input. Subscribed
Good video as always y’all keep up the awesome work!!
This is great stuff
amazing video thank you!!!
This was great ! Ty
Excellent thank you
Love these videos
Love it ❤
I love these vids!
This is great ❤️❤️. I will u do teRefrigeration
Thank you ❤️ from kerala
India❤️❤️
Awesome video, when transformed to a lower voltage does it become DC or stay AC?
It remain's AC .
I know they have interplay, but I wish they could turn learning HVACR into an actual video game.
Loved the simplicity in visual form!!!
brilliants...❤
Can somebody please explain why you can't measure 24v on the 24v side of a step down transformer with high voltage connected and power turned on. Unless it's hooked up to a load...
how to assign common to transformer or "R" on low voltage connections. some do not indicate which is which...?
Q: Does a transformer have to be screwed into body(chassis) in order to ground & work properly?
I would like if you would help us Show what a week transformer looks like :And how to wire a new transformer that they picked up from the supply house with differant color code
Most if not all new after market typical step down transformers today show what color leads are for what voltage on the skicker/nameplate on the part itself. Low voltage lead ends doesn't matter although some want common tied in with ground. High side usually have a common then different high voltage leads.
I thought a Transformer was robot that turns into a car
No. They need a third bathroom.
The video said high voltage flowed through the 5 amp fuse on the printed circuit board in the AHU. This is something I have never seen in a residential unit.