Isolation Transformer vs. Autotransformer: Safety Comparison
The safety of transformers is always one of the topics we are most concerned about. Today, we’ll take an in-depth look at two common transformer types, isolation transformers and autotransformers, and compare their safety during use.
Isolating transformers: structural advantages
The design of the isolation transformer ensures that there is no direct electrical connection between its primary and secondary windings. This design means that even if the secondary winding accidentally comes into contact with the power supply, there is no immediate risk of electric shock. This is because isolation transformers transfer energy through magnetic coupling rather than physical connections, providing an extra layer of safety.
Autotransformers: Risks of Shared Windings
In contrast, the primary and secondary windings of an autotransformer share a portion of the coil. Although this design improves efficiency, it also brings safety risks. Because if the secondary winding accidentally comes into contact with the power supply, the risk of electric shock increases significantly due to the direct connection of the windings.
Safety comparison: Isolation transformer is better
From a safety perspective, isolation transformers are generally considered the safer option. Its design inherently reduces the risk of electric shock and is particularly suitable for use in situations where a high isolation level is required. However, this does not mean that an autotransformer is unsafe; it is still very practical and efficient in many applications, but requires greater attention to safety precautions when using it.
Choosing the right transformer is critical to ensuring the safety of your power system. Isolation transformers and autotransformers each have their own characteristics, but in applications that require a high degree of isolation and safety, isolation transformers are undoubtedly the better choice. Through the in-depth understanding in this video, we hope that viewers can choose the appropriate transformer more wisely to ensure an efficient and safe power supply.
