Voltage transformers are devices that are used to step down and decrease the voltage of a system to a level that is considered safe. It operates by allowing energy meters to monitor the operation of electrical connections, which may have a higher voltage than usual to function correctly.

Depending on the application, it can be used as a low voltage transformer or as a high voltage transformer. Specifically, voltage transformer can be used as:

• A useful instrument to measure the consumed energy.
• A device to secure and prevent disturbances and faults from happening in the electrical systems.
• Voltage signals are used crucially for synchronizing, event logging, and recording events.
• A computer of the impedance and power of a system in the process of voltage measurement along the direction.
• A determiner of O/F, O/V, U/F, U/V, and some excessively fluxing security through the measurement processes.