How does a Transformer work - Working Principle electrical engineering
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Date: 2023-11-17
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Comments and reviews: 30
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In order to create a magnetic field with electricity, you need to use alternating current. This is because only alternating current can be used in transformers. Transformers work by using the changing magnetic fields to transfer electrical energy from one coil of wire to another. A basic transformer has two coils of wire, called the primary and secondary coils. The primary coil is connected to the power source, and the secondary coil is connected to the device that needs power. When the current flows through the primary coil, it creates a changing magnetic field. This magnetic field passes through the secondary coil, causing it to create an electric current.
An electrical transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductorsthe transformer's coils. The transformer's input and output power are usually measured in volts-amperes (VA. It is possible to design a transformer with an output power greater than its input power, but this requires the use of special construction techniques and materials.
The working principle of a transformer is based on Faraday's law of induction. When an electric current flows through the primary coil, a magnetic field is created. This magnetic field interacts with the secondary coil, inducing an electric current in it. The magnitude of the induced current depends on the number of turns in the secondary coil and the strength of the magnetic field.
Transformers can be used to increase or decrease the voltage level of an electric signal.
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In order to create a magnetic field with electricity, you need to use alternating current. This is because only alternating current can be used in transformers. Transformers work by using the changing magnetic fields to transfer electrical energy from one coil of wire to another. A basic transformer has two coils of wire, called the primary and secondary coils. The primary coil is connected to the power source, and the secondary coil is connected to the device that needs power. When the current flows through the primary coil, it creates a changing magnetic field. This magnetic field passes through the secondary coil, causing it to create an electric current.
An electrical transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductorsthe transformer's coils. The transformer's input and output power are usually measured in volts-amperes (VA. It is possible to design a transformer with an output power greater than its input power, but this requires the use of special construction techniques and materials.
The working principle of a transformer is based on Faraday's law of induction. When an electric current flows through the primary coil, a magnetic field is created. This magnetic field interacts with the secondary coil, inducing an electric current in it. The magnitude of the induced current depends on the number of turns in the secondary coil and the strength of the magnetic field.
Transformers can be used to increase or decrease the voltage level of an electric signal.
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Fahima
Thank you: ) is there a video on how high voltage results in low current for AC current; this is very difficult to understand and I've searched the internet for hours with no satisfying answer. V=IR makes this seem counterintuitive; I know this can be explained with P=VI but I don't understand why this is the case when it would seem a higher V would results in higher I.
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Thank you: ) is there a video on how high voltage results in low current for AC current; this is very difficult to understand and I've searched the internet for hours with no satisfying answer. V=IR makes this seem counterintuitive; I know this can be explained with P=VI but I don't understand why this is the case when it would seem a higher V would results in higher I.
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Fortunee
If the inner coils are your lower voltage, (secondary windings) and your outer coils are your higher voltage (primary windings, wouldn't the inner coils then be the star configuration with 4 bushings. Electricity in the UK is stepped down from 11kV to 400/230, using a neutral so I thought the configuration would be the opposite of what it is in this video.
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If the inner coils are your lower voltage, (secondary windings) and your outer coils are your higher voltage (primary windings, wouldn't the inner coils then be the star configuration with 4 bushings. Electricity in the UK is stepped down from 11kV to 400/230, using a neutral so I thought the configuration would be the opposite of what it is in this video.
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Terri
It is a pleasure to revisit these subjects in the comfort of mine own domicile, without the presence of dorky teenage boys who are just flat-out not interested. Seriously, these dorks got apprenticeships, and became trusted to muck about with electrical equipment. If you asked them what Ohm's Law is, you might get a giggle and a who-gives shrug. Scary, eh?
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It is a pleasure to revisit these subjects in the comfort of mine own domicile, without the presence of dorky teenage boys who are just flat-out not interested. Seriously, these dorks got apprenticeships, and became trusted to muck about with electrical equipment. If you asked them what Ohm's Law is, you might get a giggle and a who-gives shrug. Scary, eh?
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Christopher
These types of videos are meant to be watched with pen and paper in hand. Great free education, thank you.
As a music producer who is just trying to wrap his head around the very most basic elements of electricity, I found watching until the 3: 30 mark to be a sufficient base understanding. For now anyway.
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These types of videos are meant to be watched with pen and paper in hand. Great free education, thank you.
As a music producer who is just trying to wrap his head around the very most basic elements of electricity, I found watching until the 3: 30 mark to be a sufficient base understanding. For now anyway.
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Lek
According the law of energy conservation, when6the voltage is being stepped up the current should descress subsequently. However, according to ohm's law, and increase in voltage will lead to an increase in current given the same resistance. These two rule seems to cotridict one another, how does that work?
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According the law of energy conservation, when6the voltage is being stepped up the current should descress subsequently. However, according to ohm's law, and increase in voltage will lead to an increase in current given the same resistance. These two rule seems to cotridict one another, how does that work?
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Box
With those green boxes are called transformers. They are connected directly to a power plant, making sure that it doesnt overload your house with a bunch of power coming through it without those if he tried loading in a lightbulb, it would mostly just burn out immediately
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With those green boxes are called transformers. They are connected directly to a power plant, making sure that it doesnt overload your house with a bunch of power coming through it without those if he tried loading in a lightbulb, it would mostly just burn out immediately
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Ted
I like the way you show the rotating magnets in relationship to the sine wave. If you stop the video at peak voltage and 0 volts and notice the position of the magnet it helps in understanding this important point. The plus or minus in AC is directional flow?
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I like the way you show the rotating magnets in relationship to the sine wave. If you stop the video at peak voltage and 0 volts and notice the position of the magnet it helps in understanding this important point. The plus or minus in AC is directional flow?
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Chris
I always love your video with the visual and explanation. It will be great to show the number calculation how square root of 3 is derived and how 480v transforms to 208v. A lot of engineer probably dont know how to derive these numbers
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I always love your video with the visual and explanation. It will be great to show the number calculation how square root of 3 is derived and how 480v transforms to 208v. A lot of engineer probably dont know how to derive these numbers
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ShadowKatt
The most amazing thing about this is that it is completely contactless. There is NO direct connection between the power station and your home, and is infact broken at several points along the way, but it still works.
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The most amazing thing about this is that it is completely contactless. There is NO direct connection between the power station and your home, and is infact broken at several points along the way, but it still works.
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Malik
Can any one send the wiring diagram of connection between 3 phase generator and transformer( Evey coil of generator has two ends so how they are connected in delta connection in transformer. please explain)
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Can any one send the wiring diagram of connection between 3 phase generator and transformer( Evey coil of generator has two ends so how they are connected in delta connection in transformer. please explain)
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oscar
I just started going to school to become an electrician and brother Im extremely grateful for all these videos and your knowledge when you explain the material, youve helped me understand a lot thank you.
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I just started going to school to become an electrician and brother Im extremely grateful for all these videos and your knowledge when you explain the material, youve helped me understand a lot thank you.
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Syam
Will magnet as a core (instead of iron piece) make any difference to the amount of the magnetic flux/power resulted?
If it is, does it affect the voltage generated? or the amperage?
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Will magnet as a core (instead of iron piece) make any difference to the amount of the magnetic flux/power resulted?
If it is, does it affect the voltage generated? or the amperage?
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David
Why/how does the current reduce when the voltage is increased in a step-up transformer? I thought that by ohm's law, current and voltage increase together given the same resistance.
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Why/how does the current reduce when the voltage is increased in a step-up transformer? I thought that by ohm's law, current and voltage increase together given the same resistance.
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Ultralagger
As of writing, I have worked on 3-phase transformer problems in my university course: Electrical Energy Conversion. They are quite the challenge, but really exciting stuff!
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As of writing, I have worked on 3-phase transformer problems in my university course: Electrical Energy Conversion. They are quite the challenge, but really exciting stuff!
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John
sorry, I am a bit confused on increasing voltage, but decreasing current. It would seem just the opposite. Are you saying voltage and current are not the same? please explain.
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sorry, I am a bit confused on increasing voltage, but decreasing current. It would seem just the opposite. Are you saying voltage and current are not the same? please explain.
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Dreams
If we can not change the power in secondary winding by reducing voltage or current in the primary winding, why we need to use transformer? I mean if current if V1>V2 then I1
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If we can not change the power in secondary winding by reducing voltage or current in the primary winding, why we need to use transformer? I mean if current if V1>V2 then I1
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Ian
I think this is what is lacking in the conversation when it comes to how electricity works on a AC Generator, they never mention how it is connected to a transformer.
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I think this is what is lacking in the conversation when it comes to how electricity works on a AC Generator, they never mention how it is connected to a transformer.
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LasseBB
I can't find that follow up video diving deeper into different transformer configuration and calculations.
Could you point me in the correct direction? :)
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I can't find that follow up video diving deeper into different transformer configuration and calculations.
Could you point me in the correct direction? :)
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Han
Electric Current and Magnetic field are two faces of Electricity.
So it transforms mutually thus Transformer evolved with its alternative in nature.
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Electric Current and Magnetic field are two faces of Electricity.
So it transforms mutually thus Transformer evolved with its alternative in nature.
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Vilo
Why current decreases in step up transformer? What causes this effect? Why increasing the voltage means decreasing the current? I am truly curious.
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Why current decreases in step up transformer? What causes this effect? Why increasing the voltage means decreasing the current? I am truly curious.
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education
what does it mean when you say the center point of the wye configuration is often grounded and that allows for neutral lines to be connected?
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what does it mean when you say the center point of the wye configuration is often grounded and that allows for neutral lines to be connected?
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ARDUINO
I have a question
What happen Is i will use step-down transformer as step up transformer in reverse feeding directly connect with inverter?
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I have a question
What happen Is i will use step-down transformer as step up transformer in reverse feeding directly connect with inverter?
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carlos
thank you very much for your explanations, but what makes the magnet movement, I mean the turning of the magnet inside de ac generator? thanks
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thank you very much for your explanations, but what makes the magnet movement, I mean the turning of the magnet inside de ac generator? thanks
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Black
its crazy how we now take things like that for granted when people before us would kill to have something like that in the past
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its crazy how we now take things like that for granted when people before us would kill to have something like that in the past
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Govindha
At 4: 25 i have a doubt current is directly proportional to voltage then why current is increased when voltage decrease s
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At 4: 25 i have a doubt current is directly proportional to voltage then why current is increased when voltage decrease s
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yosakohksi
Why is more dangerous in high voltage transmission line if the current decrease? Please some explain more to me
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Why is more dangerous in high voltage transmission line if the current decrease? Please some explain more to me
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Chad
I build the types of transformers you see in a sub station for a living and I even learned a thing or two from this.
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I build the types of transformers you see in a sub station for a living and I even learned a thing or two from this.
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Income
Dear respected sir plz. Make detailed vedio on delta and star configuration used in transformers. Plz. Plz. Plz.
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Dear respected sir plz. Make detailed vedio on delta and star configuration used in transformers. Plz. Plz. Plz.
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PincherMartyn
The penny drops and my learning increases. Thank you. You are doing a fantastic service by sharing this.
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The penny drops and my learning increases. Thank you. You are doing a fantastic service by sharing this.
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