What type of transformer steps down current to a maximum safe value of 5 amps?

The transformer that steps down current to a maximum safe value of 5 amps is a current transformer. Current transformers are specifically designed to produce a reduced current accurately proportional to the current in the circuit. This allows for safe measurement and monitoring of high currents by stepping them down to a lower, manageable level, which can then be used for meters or protective relaying systems without the inherent dangers associated with high current levels.

This type of transformer operates on the principle of electromagnetic induction, where the primary winding carries the high current, inducing a proportionally lower current in the secondary winding, hence ensuring safety while allowing for necessary measurements or controls. In practical applications, current transformers are essential for protection and measurement within electrical systems, where it is critical to monitor and manage high current levels safely.