Sekundääripiiri

Sekundääripiiri, also known as a secondary circuit, refers to a part of an electrical system that receives its power indirectly from a primary source. This is commonly seen in transformers, where the primary coil is connected to the main power supply, and the secondary coil is where the induced voltage and current are utilized. The voltage in the secondary circuit can be stepped up or stepped down from the primary voltage, depending on the winding ratio of the transformer.

In power generation and distribution, the term sekundääripiiri can also describe parts of the grid that are fed from substations. These circuits are further removed from the initial generation point. For example, a local distribution network that feeds individual homes or businesses might be considered a secondary circuit relative to the high-voltage transmission lines.

The concept of a sekundääripiiri is crucial for understanding electrical isolation and voltage transformation. By using transformers to create secondary circuits, electrical systems can safely and efficiently deliver power at appropriate voltage levels for various applications, from industrial machinery to household appliances. This separation also offers a degree of protection, as faults in the secondary circuit are less likely to directly impact the primary power source. The design and operation of secondary circuits are governed by strict safety standards to ensure reliable and secure electricity supply.