Electrical Transformer Model
Product Code : SCL-ES-11435
Description:
The Educational Instruments Electrical Transformer Working Model is a vital piece of Physics Science educational laboratory equipment designed to illustrate the principles and function of a transformer. This electrical device is essential for alternating current (AC) circuits as it efficiently changes the voltage level while maintaining the current frequency.
The model is built to clearly show the core components: a primary coil and a secondary coil wound around a common laminated iron core. By manipulating the ratio of turns between the primary and secondary coils, this apparatus effectively demonstrates the two crucial functions of transformers: stepping up the voltage for efficient long-distance power transmission and stepping down the voltage for safe residential and commercial use. This hands-on model makes the complex topic of power distribution and voltage control easily accessible to students.
Usage:
The Transformer Model is fundamental to teaching the laws of electromagnetism and their application in modern power grids.
Principle of Mutual Induction: The model is primarily used to demonstrate mutual induction, the process by which a changing magnetic field produced by the AC flowing through the primary coil induces an AC voltage in the separate secondary coil.
Step-Up and Step-Down Operation: By comparing different configurations (coils with different turn counts), students can observe the result:
Step-Up: If the secondary coil has more turns than the primary, the output voltage is increased.
Step-Down: If the secondary coil has fewer turns than the primary, the output voltage is decreased.
Power Transmission Efficiency: The model helps explain the crucial real-world application of stepping up voltage for transmission across power lines. This process significantly reduces energy losses due to heat dissipation, making the overall electrical power distribution system highly efficient.
Household Safety and Use: It illustrates why smaller transformers are needed in homes to safely convert the high voltage supplied by the grid (e.g., 220 Volts) down to the low voltages required by common electronic devices (e.g., 12 Volts).
Specifications & Features:
Components: Primary Coil, Secondary Coil, and Iron Core
Functionality: Step-Up and Step-Down Capability
Application: Alternating Current (AC) Circuits
Educational Focus: Electromagnetic Induction and Power Distribution
Benefits:
Clearly displays the essential structure of a true electrical transformer.
Allows students to observe and measure both types of voltage transformation.
Specifically designed to demonstrate principles of AC voltage manipulation.
Essential tool for teaching key concepts in electricity and magnetism.
