Understanding the Working Principle of Transformers in Electrical Engineering
Learn the working principle of transformers in electrical engineering and how they use coils and an iron core to increase or decrease voltage, minimizing energy loss.
00:00:04 This video explains the working principle of transformers in electrical engineering, focusing on creating a magnetic field with alternating current and the different phases of transformers.
💡 Transformers work by creating a magnetic field with electricity.
🔌 Transformers can only operate using AC, or alternating current.
🔄 When an AC generator is connected to a closed loop of cable, the current will flow in a forward and backward direction, rotating with the generator.
00:01:08 This video explains how a transformer works in electrical engineering, focusing on the magnetic field generated by the flow of alternating current through multiple coils.
🔌 When an AC current flows through a cable, it creates a magnetic field that changes direction.
🔄 Multiple cables and coils can be used to create a stronger magnetic field.
💡 The magnetic field can induce a current in a nearby coil, allowing for the transfer of energy.
00:02:14 Understanding the working principle of Transformers in electrical engineering, where changes in magnetic fields induce current in a secondary coil.
🔌 The change in the intensity and direction of the magnetic field induces a continuous flow of electrons in the secondary coil, creating an electric force known as EMF.
⚡ EMF is only produced briefly when the primary circuit is open or closed, or when there is a change in voltage.
🔄 To maximize the magnetic field, engineers place a core made of magnetic materials, such as iron, between the primary and secondary coils.
00:03:18 The video explains how transformers work in electrical engineering, using coils and iron core to increase or decrease voltage, while minimizing energy loss.
🔌 Transformers increase or decrease voltage using different numbers of turns in the secondary coil.
💡 Using an iron core and laminated sheets reduces energy losses in transformers.
⚡️ The phenomenon of eddy currents causes heating in transformers, which is minimized by using laminated sheets.
00:04:20 A transformer is used to increase or decrease voltage and current to minimize losses in long distance power transmission. It consists of coils wound around an iron core.
⚡️ Transformers are used to increase or decrease voltage and current in power transmission.
🏢 Transformers are commonly used in commercial buildings and power stations.
🔌 Transformers can be built as separate units or as one large unit with a common iron core.
00:05:25 This video explains the working principle of a transformer in electrical engineering, focusing on the connection configurations and basic knowledge.
Transformers have isolated coils that allow the magnetic field to pass through.
The most commonly used configuration for connecting coils is the Delta-Wye configuration.
The primary side carries the wire in a Delta configuration, and the secondary side carries the wire in a Wye configuration.
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