Potential Transformer

Potential transformers, also known as voltage transformers, are a type of transformer used in electrical power systems to step down high voltage levels to a lower, more manageable voltage level. They are commonly used for measurement, control, and protection purposes.

In the supply class "Coils And Transformers" within the supply group "Electrical And Electronic Equipment Components," potential transformers are a specific type of transformer that falls under this category. They are designed to provide accurate voltage measurements and are commonly used in electrical substations, power plants, and industrial applications.

Potential transformers consist of a primary winding connected to the high voltage side of the system and a secondary winding connected to the low voltage side. The primary winding is typically connected in parallel with the circuit being measured, while the secondary winding is connected to measuring instruments or protective relays.

The primary purpose of a potential transformer is to step down the voltage level to a safe and manageable level for accurate measurement or protection purposes. They provide isolation between the high voltage system and the measuring instruments, ensuring the safety of personnel and equipment.

Potential transformers are designed to have a high turns ratio, which allows them to accurately step down the voltage level while maintaining a high level of accuracy. They are typically designed to have a high accuracy class, such as 0.2, 0.5, or 1, which indicates the level of accuracy in voltage measurement.

In summary, potential transformers are a type of transformer used in electrical power systems to step down high voltage levels to a lower, more manageable voltage level for measurement, control, and protection purposes. They are a specific type of transformer within the supply class "Coils And Transformers" in the supply group "Electrical And Electronic Equipment Components."